Consulta: subjectFacets:"Diet"
Registros recuperados: 313
Data/hora: 16/06/2024 09:11:46

Dieta y disponibilidad de forraje del vendo cola blanca (Odocoileus virginianus thomasi) en Campeche, México.
Provedor de dados: 32
Autores: Granados Rivera, Lorenzo Danilo.
En el estado de Campeche no existen estudios sobre la composición botánica de la dieta de Odocoileus virginianus; de 1999 al 2010 se conformaron 122 Unidades de Manejo Ambiental, ocupando una superficie de 761,690 ha (SEMARNAT 2011), es decir, el 13 % del territorio Campechano realiza algún tipo de aprovechamiento de fauna silvestre, incluyendo al venado cola blanca. Los objetivos fueron estimar la composición botánica de la dieta y su cambio estacional, la disponibilidad de forraje y la capacidad de carga de Odocoileus virginianus thomasi en Campeche, México. El trabajo se realizó de octubre 2010 a mayo 2012 en el campo experimental del Colegio de Postgraduados, Campus Campeche. La composición botánica de la dieta se determinó mediante análisis...
Palavras-chave: Hábitat tropical; Variación estacional; Dieta; Cérvido silvestre; Capacidad de carga; Tropical habitat; Seasonal variation; Diet; Cervid wild; Carrying capacity; Ganadería; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1904

Digestibilidad in vitro en dietas integrales para bovinos con inclusión de bagazo de caña y un subproducto energético derivado en el proceso de obtención de etanol.
Provedor de dados: 32
Autores: Sandoval Romero, José Domingo.
En pruebas de fermentación in vitro se utilizó como sustrato el bagazo de caña, para evaluar un subproducto energético obtenido de la producción de etanol conocido como (ALTEN-60). Se utilizó como producto comparativo la melaza se utilizó en todos las pruebas, con el propósito de realizar comparaciones con el ALTEN-60 debido a su similitud en sus propiedades bromatológicas. Se realizaron 3 etapas en la investigación, en la primera se realizó el análisis proximal de los productos: La melaza mostro mayor porcentaje de materia seca y energía (P&lt;0.05) que ALTEN-60, el contenido de proteína, cenizas y extracto etéreo del ALTEN-60 fueron más altos que en la melaza (P&lt;0.05). En la etapa número 2 se midió la producción de gas en los 2 subproductos...
Palavras-chave: Subproducto; Dieta; Bagazo; Melaza; ALTEN-60; Product; Diet; Bagasse; Molasses; Ganadería; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2355

Densidad, uso y evaluación del hábitat y de la dieta del Romerolagus diazi en el Parque Nacional Izta-Popo, Zoquiapan y anexas.
Provedor de dados: 32
Autores: Martínez García, José Antonio.
Este estudio se desarrolló del invierno 2003-2004 al invierno del 2004-2005 en el Parque Nacional Izta-Popo, Zoquiapan y Anexas, en sitios con presencia de este conejo fueron denominados como Altzomoni (AL), El Pinar (EP), El Arco (EA), y El Papayo (PA) y tuvo como objetivos el estimar la densidad, el uso del hábitat, y evaluación del hábitat y de la dieta. Se estimó el tamaño poblacional, la densidad y la determinación del ámbito hogareño y cambios de éstas, bajo distintos tipos de unidades ambientales a lo largo del año. El uso de hábitat Este se determinó por medio de la selección de comunidades vegetales, porcentaje de cada uno de los componentes de la cobertura del hábitat, además se estableció el efecto de la perturbación del hábitat, ya sea por...
Palavras-chave: Romerolagus diazi; Densidad; Uso de hábitat; Perturbación; Dieta; Capacidad nutricional de carga; Density; Habitat use; Perturbation; Diet; Nutritional carrying capacity; Doctorado; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/426

Determinación de la dieta del jaguar (Panthera onca) y puma (Puma concolor) en el municipio de Tamasopo, San Luis Potosí
Provedor de dados: 32
Autores: Rueda Zozaya, Rocío del Pilar.
En México se encuentran los felinos más grandes de América, el puma (Puma concolor) y el jaguar (Panthera onca). Debido al incremento en las fronteras agropecuarias, el jaguar y el puma se encuentran en peligro de extinción en varias áreas de su distribución. Aunada a su situación crítica, su comportamiento elusivo y críptico dificulta aún más la accesibilidad para realizar investigación acerca de su etología, hábitos alimenticios y estimación de parámetros poblacionales. Por ello, se ha tenido la necesidad de recurrir a otros  métodos de investigación no invasivos que eviten el manejo directo, uno de estos métodos es la recolección de excretas para identificar los componentes de su dieta, con esta información, se puede evaluar si realmente estos felinos...
Palavras-chave: Panthera onca; Puma concolor; Dieta; PCR; Diet; Ganadería; Fauna silvestre; Maestría.
Ano: 2010
URL: http://hdl.handle.net/10521/76

Densidad, uso y evaluación del hábitat y de la dieta del Romerolagus diazi en el Parque Nacional Izta-Popo, Zoquiapan y anexas.
Provedor de dados: 32
Autores: Martínez García, José Antonio.
Este estudio se desarrolló del invierno 2003-2004 al invierno del 2004-2005 en el Parque Nacional Izta-Popo, Zoquiapan y Anexas, en sitios con presencia de este conejo fueron denominados como Altzomoni (AL), El Pinar (EP), El Arco (EA), y El Papayo (PA) y tuvo como objetivos el estimar la densidad, el uso del hábitat, y evaluación del hábitat y de la dieta. Se estimó el tamaño poblacional, la densidad y la determinación del ámbito hogareño y cambios de éstas, bajo distintos tipos de unidades ambientales a lo largo del año. El uso de hábitat Este se determinó por medio de la selección de comunidades vegetales, porcentaje de cada uno de los componentes de la cobertura del hábitat, además se estableció el efecto de la perturbación del hábitat, ya sea por...
Palavras-chave: Romerolagus diazi; Densidad; Uso de hábitat; Perturbación; Dieta; Capacidad nutricional de carga; Density; Habitat use; Perturbation; Diet; Nutritional carrying capacity; Doctorado; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/426

Determinación de la dieta del jaguar (Panthera onca) y puma (Puma concolor) en el municipio de Tamasopo, San Luis Potosí
Provedor de dados: 32
Autores: Rueda Zozaya, Rocío del Pilar.
En México se encuentran los felinos más grandes de América, el puma (Puma concolor) y el jaguar (Panthera onca). Debido al incremento en las fronteras agropecuarias, el jaguar y el puma se encuentran en peligro de extinción en varias áreas de su distribución. Aunada a su situación crítica, su comportamiento elusivo y críptico dificulta aún más la accesibilidad para realizar investigación acerca de su etología, hábitos alimenticios y estimación de parámetros poblacionales. Por ello, se ha tenido la necesidad de recurrir a otros  métodos de investigación no invasivos que eviten el manejo directo, uno de estos métodos es la recolección de excretas para identificar los componentes de su dieta, con esta información, se puede evaluar si realmente estos felinos...
Palavras-chave: Panthera onca; Puma concolor; Dieta; PCR; Diet; Ganadería; Fauna silvestre; Maestría.
Ano: 2010
URL: http://hdl.handle.net/10521/76

Densidad, uso y evaluación del hábitat y de la dieta del Romerolagus diazi en el Parque Nacional Izta-Popo, Zoquiapan y anexas.
Provedor de dados: 32
Autores: Martínez García, José Antonio.
Este estudio se desarrolló del invierno 2003-2004 al invierno del 2004-2005 en el Parque Nacional Izta-Popo, Zoquiapan y Anexas, en sitios con presencia de este conejo fueron denominados como Altzomoni (AL), El Pinar (EP), El Arco (EA), y El Papayo (PA) y tuvo como objetivos el estimar la densidad, el uso del hábitat, y evaluación del hábitat y de la dieta. Se estimó el tamaño poblacional, la densidad y la determinación del ámbito hogareño y cambios de éstas, bajo distintos tipos de unidades ambientales a lo largo del año. El uso de hábitat Este se determinó por medio de la selección de comunidades vegetales, porcentaje de cada uno de los componentes de la cobertura del hábitat, además se estableció el efecto de la perturbación del hábitat, ya sea por...
Palavras-chave: Romerolagus diazi; Densidad; Uso de hábitat; Perturbación; Dieta; Capacidad nutricional de carga; Density; Habitat use; Perturbation; Diet; Nutritional carrying capacity; Doctorado; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/426

Densidad, uso y evaluación del hábitat y de la dieta del Romerolagus diazi en el Parque Nacional Izta-Popo, Zoquiapan y anexas.
Provedor de dados: 32
Autores: Martínez García, José Antonio.
Este estudio se desarrolló del invierno 2003-2004 al invierno del 2004-2005 en el Parque Nacional Izta-Popo, Zoquiapan y Anexas, en sitios con presencia de este conejo fueron denominados como Altzomoni (AL), El Pinar (EP), El Arco (EA), y El Papayo (PA) y tuvo como objetivos el estimar la densidad, el uso del hábitat, y evaluación del hábitat y de la dieta. Se estimó el tamaño poblacional, la densidad y la determinación del ámbito hogareño y cambios de éstas, bajo distintos tipos de unidades ambientales a lo largo del año. El uso de hábitat Este se determinó por medio de la selección de comunidades vegetales, porcentaje de cada uno de los componentes de la cobertura del hábitat, además se estableció el efecto de la perturbación del hábitat, ya sea por...
Palavras-chave: Romerolagus diazi; Densidad; Uso de hábitat; Perturbación; Dieta; Capacidad nutricional de carga; Density; Habitat use; Perturbation; Diet; Nutritional carrying capacity; Doctorado; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/426

Food habits of Oligoryzomys longicaudatus (Rodentia) in a steppe-forest transitional area of Argentinean Patagonia
Provedor de dados: 67
Autores: Polop,Francisco; Sepúlveda,Lorena; Pelliza Sbriller,Alicia; Polop,Jaime; Provensal,M. Cecilia.
We described the spatial and seasonal variation of feeding habits of Oligoryzomys longicaudatus in four environments of the steppe-forest transition zone of Argentinean Patagonia. Composition of fecal pellets collected from live-trap captures was determined with microhistological techniques using an identifcation key of representative plants of our study areas. Fruits and seeds constituted 57.2% of O. longicaudatus diets, followed by foliage (26.8%) and arthropods (16.0%). Fruits and seeds, foliage parts, and arthropods were primarily found in individuáis from shrublands, forests, and peridomestic areas, whereas foliage predominated in pastures. Similarity Index revealed differences between pastures and the other environments. Diet in shrubland showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Spatial variation; Temporal variation; Frugivorous; Opportunism; Reservoir of Andes genotype hantavirus.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000300005

Food habits of Geoffroy's cat (Leopardus geoffroyi) in agroecosystem habitats of Buenos Aires, Argentina
Provedor de dados: 67
Autores: Guidobono,Juan S.; Muñoz,Jimena; Muschetto,Emiliano; Teta,Pablo; Busch,María.
Geoffroy's cat (Leopardus geoffroyi), a small wild cat of South America, showed in the last years a decline in population abundance mainly related to both habitat destruction and hunting. The increasing human population densities and the consequent demand for food and natural resources will rapidly erode and fragment its remaining habitats. In Argentina most studies about Geoffroy's cat diet have been conducted in protected areas or in their surroundings, while there are no studies conducted in purely agricultural systems. We described the diet composition of Leopardus geoffroyi and its seasonal variations in an agricultural ecosystem to contribute knowledge of its ecology and natural history. The study was carried out from spring 2008 to spring 2011. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Small wild cats; Diet; Mammal prey; Agricultural ecosystems.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2016000100005

Diet of the Red-backed Hawk (Buteo polyosoma) in a forested area of the Chilean Patagonia and its relation to the abundance of rodent prey
Provedor de dados: 68
Autores: Figueroa Rojas,Ricardo A.; Corales Stappung,E. Soraya; Alvarado O.,Sergio.
The diet of Red-backed Hawk (Buteo polyosoma) was quantified by analyzing 40 pellets collected during winter and spring 1999 and winter 2000 in a forested area of Aysén, Chilean Patagonia. Rodents were the most numerous prey (82% of all prey), and accounted for the highest contribution to total biomass (83%). Among rodents, Oligoryzomys longicaudatus was the most consumed prey species, accounting for 70% of total number and 64% of total biomass. Birds accounted for less than 6% in number, but their biomass contribution was significantly higher (more than 15%). Insects constituted 12% in number, but less than 0.5% of total biomass. The Red-backed Hawk seemed to consume Oligoryzomys longicaudatus according to their field abundance. Also, it seemed to prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Buteo polyosoma; Chilean Patagonia; Diet; Oligoryzomys longicaudatus; Prey selection; Red-backed Hawk.
Ano: 2003
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072003000100006

Nocturnal feeding under artificial light conditions by Brown-Hooded Gull (Larus Maculipennis) in Puerto Madryn harbour (Chubut province, Argentina)
Provedor de dados: 68
Autores: Leopold,Mardik F.; Philippart,Catharina J. M.; Yorio,Pablo.
This paper describes nocturnal, marine feeding behaviour in the Brown-hooded Gull (Larus maculipennis) in November 2009. The gulls assembled at night at the end of a long pier, running 800 m offshore into the Golfo Nuevo, at Puerto Madryn, Chubut Province, Argentina. Powerful lights predictably lighted the water around the end of the pier and attracted many small prey animals to the surface. Several hundreds of gulls, presumed to be local breeders, came every night to feed on this bounty, using various feeding techniques and taking several prey species and sizes. Potential prey items were caught to be identified by vertical plankton hauls. The gulls most likely took relatively large Isopoda (Idothea sp.), Polychaeta (Platynereis sp.) and fish larvae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Marine invertebrates; Night light niche; Patagonia; Seabirds.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072010000200002

The microbiome and inborn errors of metabolism: Why we should look carefully at their interplay?
Provedor de dados: 74
Autores: Colonetti,Karina; Roesch,Luiz Fernando; Schwartz,Ida Vanessa Doederlein.
Abstract Research into the influence of the microbiome on the human body has been shedding new light on diseases long known to be multifactorial, such as obesity, mood disorders, autism, and inflammatory bowel disease. Although inborn errors of metabolism (IEMs) are monogenic diseases, genotype alone is not enough to explain the wide phenotypic variability observed in patients with these conditions. Genetics and diet exert a strong influence on the microbiome, and diet is used (alone or as an adjuvant) in the treatment of many IEMs. This review will describe how the effects of the microbiome on the host can interfere with IEM phenotypes through interactions with organs such as the liver and brain, two of the structures most commonly affected by IEMs. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inborn errors of metabolism; Microbiome; Microbiota; Diet; Treatment.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000400515

Dieta de Mazama gouazoubira (Mammalia, Cervidae) en un ambiente secundario de Yungas, Argentina
Provedor de dados: 76
Autores: Richard,Enrique; Juliá,Juan Pablo.
The trophic spectrum of the Brown brocket deer, Mazama gouazoubira Fischer, 1814, was analyzed between September 1993 to February 1994, in a secondary environment of Yungas, Argentina and in semicaptivity conditions. Seventy three vegetable species and two fungi species were recorded. It was registered also the consumption of ticks, salt, land, bricks and scats of another animals. The main vegetable parts consumed in order of importance were young leaves and outbreaks (green parts), fruit and flowers.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cervidae; Diet; Geophagia; Osteophagia; Mammalia.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000100015

Sex differences on the feeding of the gobiid fish Bathygobius soporator in tide pools of Maiandeua Island, Pará, Brazil
Provedor de dados: 76
Autores: Soares,Bruno E.; Lobato,Cleonice M. C.; Freitas,Danielly T. H.; Oliveira-Raiol,Roberta D.; Montag,Luciano F. A.
Abstract Bathygobius soporator (Valenciennes, 1837) is one of the most common fishes in tide pools in the estuary of Pará state, and has an omnivorous feeding habit. This study examined the diet of the species in Maiandeua Island, and aimed to: (i) describe the diet of B. soporator through indexes based on the occurrence and weight of consumed items; and (ii) evaluate if there is variation in diet composition between males and females. Frequency of Occurrence, frequency of weight and Alimentary Index were calculated for each item, and differences in the diet composition of males and females were observed through multivariate analyses (ANOSIM, NMDS and SIMPER). Bathygobius soporator presented carnivorous feeding habit, eating mainly crustaceans, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries; Diet; Trophic guild.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100208

Diet of Teius oculatus (Sauria, Teiidae) in southern Brazil (Dom Feliciano, Rio Grande do Sul)
Provedor de dados: 76
Autores: Cappellari,Lize Helena; Lema,Thales de; Prates Jr.,Paulo; Rocha,Carlos Frederico Duarte da.
We analyzed stomach contents of 58 specimens of Teius oculatus (D'Orbigny &amp;amp; Bibron, 1837) (20 adult males, 17 adult females and 21 juveniles) captured in Dom Feliciano, RS, Brazil, to evaluate diet composition and sexual and ontogenetic variations in prey consumption. Diet was composed of 15 prey categories, all arthropods. Orthoptera was the most frequent prey type. Quantitatively, termites were the most important prey item (59.5%). There were no significant differences between the diets of adult males and females. Ontogenetic differences were found, mainly concerning volume of prey consumed. Adult lizards ingested significantly larger prey than juveniles (U = 170.00; p &lt; 0.001). Juveniles, although having a comparatively less diverse diet (10...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lizards; Diet; Ontogenetic variation.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000100006

Feeding of Pellona flavipinnis (Clupeiformes, Pristigasteridae)in a Central Amazonian floodplain
Provedor de dados: 76
Autores: Moreira-Hara,Sandra S.; Zuanon,Jansen A. S.; Amadio,Sidineia A.
The feeding habits of Pellona flavipinnis (Valenciennes, 1836) at Catalão, a floodplain area on the Brazilian Central Amazon was studied. Data was obtained during three hydrological cycles, between September 1999 and September 2003. Diet composition, daily and seasonal variation in the feeding activity and the relationship between predator's size and its prey were analyzed. Almost 80% of the food consumed has autochthonous origin and diet was composed basically by insects and fish. Juvenile fish predominated in the stomach contents of all size classes but there was no significant relationship between predator's size and its prey. Pellona flavipinnis may be considered a carnivorous species which feeds mainly on juvenile (young-of-the-year) specimens of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon basin; Hydrological cycle; Diet; Carnivory; Feeding activity.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000200006

Reproduction and feeding ecology of Amphisbaena munoai and Anops kingi (Amphisbaenia, Amphisbaenidae) in the Escudo Sul-Rio-Grandense, southern Brazil
Provedor de dados: 76
Autores: Balestrin,Rafael L; Cappellari,Lize H.
This study presents original data on the reproduction and feeding ecology of two syntopic amphisbaenians, Amphisbaena munoai Klappenbach, 1969 and Anops kingi Bell, 1833, from southern Brazil. Sampling was carried out from April 2004 to April 2006 at a highland area located in São Jerônimo and Barão do Triunfo municipalities, Rio Grande do Sul, Brazil. A total of 647 amphisbaenians were collected, 510 specimens of A. munoai and 137 specimens of A. kingi, of which 130 and 93, respectively, had their gonads and gut content analyzed. Both species presented a unimodal pattern of seasonal distribution, sexually mature females with significantly larger snout vent length (SVL) than sexually mature males, and seasonal reproductive cycle. Adults of A. kingi had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seasonality; Sexual dimorphism; Diet.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000100013

Seasonal variation of the effect of high-carbohydrate and high-protein diets on the intermediate metabolism of Parastacus brasiliensis (Crustacea, Decapoda, Parastacidae) maintained in the laboratory
Provedor de dados: 76
Autores: Dutra,Bibiana K.; Silva,Karina M. da; Zank,Caroline; Conter,Maria R.; Oliveira,Guendalina T.
The goal of this study was to evaluate the effect of a high-carbohydrate diet (HC) and a high-protein diet (HP) on the metabolism of the crayfish Parastacus brasiliensis (Von Martens, 1869), collected in different seasons and maintained in the laboratory for 15 days. Crayfish were collected monthly from January 2002 to January 2004 at São Francisco de Paula, Southern Brazil, in Guarapirá stream. In the laboratory, the animals were kept submerged in aquariums under controlled conditions. They were fed ad libitum, for 15 days with either a HC or HP diet. At the end of this period, haemolymph samples were collected, as were hepatopancreas, gills, and abdominal muscle that were removed for determination of glycogen, free glucose, lipids, and triglycerides. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crayfish; Experimental culture; Diet; Metabolism; Seasonality.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000400003

Distribution, feeding and ecomorphology of four species of Auchenipteridae (Teleostei: Siluriformes) in Eastern Amazonia, Brazil
Provedor de dados: 76
Autores: Freitas,Tiago M. S.; Montag,Luciano F. A.; Barthem,Ronaldo B.
ABSTRACT Fish exhibit morphological, physiological and behavioral specializations which enable them to display different ways to explore the environments and resources. Thus, the aim of this study was to verify how four Auchenipteridae species differ in the distribution, feeding habits and morphological traits: Auchenipterichthys longimanus (Günther, 1864), Auchenipterus nuchalis (Spix &amp; Agassiz, 1829), Tatia intermedia (Steindachner, 1877) and Trachelyopterus galeatus (Linnaeus, 1766). This study was conducted in rivers and bays of the Anapú Basin, Pará State (Brazil), where these species are abundant. Specimens were collected using gillnets, and after caught the stomachs were removed for the contents analyzes. Eighteen morphometric measurements from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Morphology; Diet; Adaptation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100208

Dieta de espécies de Anostomidae (Teleostei, Characiformes) na área de influência do reservatório de Manso, Mato Grosso, Brasil
Provedor de dados: 76
Autores: Balassa,Graziela Custodio; Fugi,Rosemara; Hahn,Norma Segatti; Galina,André Beal.
The diet of four species of Anostomidae (Leporinus friderici Bloch, 1794, L. striatus Kner, 1858, L. elongatus Valenciennes, 1849 and Leporinus sp.) were investigated in the Manso Reservoir, Mato Grosso State, Brazil. Fish were sampled in three sites: upriver, in the main body of the reservoir, and below the dam. Were analized 276 stomachs. The diet was evaluated using the frequency of ocorrence and volumetric methods. Leporinus friderici showed tendency to herbivory, mainly in the upriver site. In the reservoir and below the dam, it consumed large quantities of fish; Isoptera only in the reservoir. Leporinus striatus and L. elongatus have similar diets, consuming Chironomidae larvae (Diptera), whereas Leporinus sp. was more generalist, feeding similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leporinus; Diet; Manso Reservoir.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100014

Cephalopoda as prey of juvenile Southern elephant seals at Isla 25 de Mayo/King George, South Shetland Islands
Provedor de dados: 76
Autores: Burdman,Luciana; Daneri,Gustavo A.; Negrete,Javier; Mennucci,Jorge A.; Marquez,Maria E. I.
The aim of the present study was to enhance the knowledge of the feeding habits of the juvenile component of the population of Southern elephant seals [Mirounga leonina (Linnaeus, 1758)] from Isla 25 de Mayo, South Shetland Islands, age class whose diet information is scarce. A total of 60 individuals were stomach lavaged in the spring - summer seasons of three consecutive years (2003, 2004 and 2005) of which 53.3 % (n = 32) presented food remnants. The Antarctic glacial squid Psychroteuthis glacialis Thiele, 1921 was the dominant prey taxon in terms of frequency of occurrence (68.7%), numerical abundance (60.1%) and biomass (51.5%), contributing 84.1% to the total relative importance index. Other squid prey species of importance were Slosarczykovia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mirounga; Diet; Antarctica.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100012

Natural history of the lizard Enyalius iheringii (Squamata, Leiosauridae) in southern Brazilian Atlantic forest
Provedor de dados: 76
Autores: Rautenberg,Ricardo; Laps,Rudi R.
Studies on the natural history of the lizard Enyalius iheringii Boulenger, 1885, as well as other tropical lizards, are rare. In this study, some aspects of the natural history of this endemic species from the Atlantic forest are reported in areas of Vale do Itajaí, state of Santa Catarina, Brazil. Twenty individuals were found, of which 18 were collected. Most of them were found over the vegetation (n=17) and on the ground (n=3). The main defensive strategy displayed was camouflage (n=16). Jumping (n=1), jumping and running (n=1) and running (n=2) were also observed in some individuals. When handled, lizards exhibited mouth wide open, hissing, and occasionally biting, as well as color change in males. Regarding its diet, the numerically most important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Reproduction; Defensive behavior; Microhabitat use.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400002

Consistency in fruit preferences across the geographical range of the frugivorous bats  Artibeus ,  Carollia and  Sturnira (Chiroptera)
Provedor de dados: 76
Autores: Parolin,Lays C.; Bianconi,Gledson V.; Mikich,Sandra B.
Abstract The frugivorous phyllostomid bat genera Artibeus , Carollia and Sturnira are important seed dispersers in the Neotropics, and exhibit supposed preferences for fruits of the genus Ficus , Piper and Solanum , respectively. We performed a quantified literature review to test the hypothesis that interactions with plants are consistent throughout the bats´ geographic ranges. Through an extensive literature review we obtained a total of 4,448 records of fruit consumption from 180 publications. To test which fruits were most frequently consumed across the Neotropical region and in each of its component countries these data were organized by bat species and country. In general, considering the 176 botanical genera eaten by these bats, the results showed a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Frugivory; Fruit phenology; Geographic distribution; Phyllostomidae.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100210

Prey consumed by Guiana dolphin Sotalia guianensis (Cetacea, Delphinidae) and franciscana dolphin Pontoporia blainvillei (Cetacea, Pontoporiidae) in an estuarine environment in southern Brazil
Provedor de dados: 76
Autores: Cremer,Marta J.; Pinheiro,Pedro C.; Simões-Lopes,Paulo C.
The present study provides information about the diet of sympatric populations of small cetaceans in the Babitonga Bay estuary. This is the first study on the diet of these species in direct sympatry. The stomach contents of seven Guiana dolphins Sotalia guianensis and eight franciscanas Pontoporia blainvillei were analyzed. The prey of both cetaceans was mostly teleost fishes, followed by cephalopods. We identified 13 teleost fishes as part of the diet of the franciscanas, and 20 as part of the diet of Guiana dolphins. Lolliguncula brevis was the only cephalopod recorded, and was the most important prey for both cetaceans. Stellifer rastrifer and Gobionellus oceanicus were also important for franciscana, so as Mugil curema and Micropogonias furnieri were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Babitonga Bay; Cetacean; Fish; Cephalopod.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000200003

Feeding ecology in the small neotropical amphisbaenid Amphisbaena munoai (Amphisbaenidae) in southern Brazil
Provedor de dados: 76
Autores: Bernardo-Silva,Jorge S.; Von-Mühlen,Eduardo M.; Di-Bernardo,Marcos; Ketterl,Jochen.
We analyzed the alimentary tract of 66 specimens of Amphisbaena munoai Klappenbach, 1969 from the Serra do Sudeste, state of Rio Grande do Sul, southern Brazil. Forty specimens (60.6%) had prey items in their gut. The diet consisted mainly of small invertebrate prey, such as termites, insect larvae and ants. The most abundant prey item was termites, found in 62.5% of the non empty stomachs. The high number of individual prey items in the majority of stomachs, the small size of the regular prey items, and the absence of gut content in specimens of A. munoai kept alive for about two days, indicate that this species forages very frequently. The predominance of fossorial prey items and the occasional records of nomadic ants lead us to suggest that A. munoai...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphisbaena munoai; Diet; Feeding behavior; Natural history; Southern Brazil.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000400014

Feeding habits of six anuran (Amphibia: Anura) species in a rainforest fragment in Northeastern Brazil
Provedor de dados: 76
Autores: Santos,Ednilza M.; Almeida,Argus V.; Vasconcelos,Simão D.
Although Brazil encompasses one of the most abundant anuran faunas in the world, quantitative information on anuran ecology and diet are limited, especially in the Northeastern region. We analyzed the diet of six species: Hyla albomarginata, Hyla cf. branneri, Hyla minuta, Phyllomedusa aff. hypochondrialis (Hylidae), Leptodactylus natalensis, and Physalaemus cuvieri (Leptodactylidae) in a temporary pond in a rainforest remnant in Pernambuco, between 1999-2000. We analyzed diet composition, degree of food preference, and seasonal variations in diet. Leptodactylus natalensis and P. cuvieri showed higher diet diversity, whereas H. minuta consumed fewer food items. Insecta, Arachnida, and plants were preferential items for most species. Acari were consumed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hylidae; Leptodactylidae; Diet; Frogs; Pernambuco.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000400014

Alimentação de quatro espécies de Leporinus (Characiformes, Anostomidae) durante a formação de um reservatório no sudeste do Brasil
Provedor de dados: 76
Autores: Durães,Renata; Pompeu,Paulo dos Santos; Godinho,Alexandre Lima.
The study reports the changes ocurred in feeding ecology of fish species during a tropical river reservoir formation. It was analysed the stomachal contents of 399 individuals belonging to four species of genus Leporinus (L. elongatus Valenciennes, 1849, n=157; L.friderici (Bloch, 1794), n=87; L. octofasciatus Steindachner, 1917, n=107; L.amblyrhynchus Garavello &amp;amp; Britski, 1987, n=48) during formation of Nova Ponte reservoir, State of Minas Gerais, Brazil, in 1993 and 1994. Specimens were separated by sampling period, according with the rate of filling of the reservoir, and standard lenght classes. The species had included in diet vegetal and animal items of autochtone and alochtone origin in several proportions. L. amblyrhynchus fed on basically...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leporinus; Diet; Trophic overlap; Reservoir; Southeast Brazil.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000100019

Feeding of two Cichlidae species (Perciformes) in an hypertrophic urban lake
Provedor de dados: 76
Autores: Yafe,Alejandro; Loureiro,Marcelo; Scasso,Flavio; Quintans,Federico.
Diet of two cichlid species, Cichlasoma facetum (Jenyns, 1842), and Gymnogeophagus rhabdotus Hensel, 1870, was studied in Rodó Lake, an urban hypertrophic lake in Uruguay. The stomach contents from 192 individuals of C. facetum and 202 of G. rhabdotus, obtained through seasonal sampling in the year 2000, were analyzed. The occurrence frequency and the alimentary importance index of each food item were calculated for each season and size class in both species. Cichlasoma facetum fed upon insects (mainly chironomid larvae and pupae), fish (Cnesterodon decemmaculatus Jenyns, 1842), and vegetals (algae, periphyton and macrophytes debris); large individuals also fed upon the freshwater shrimp Palaemonetes argentinus Nobili, 1901. Gymnogeophagus rhabdotus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Freshwater trophic web; Cichlasoma; Gymnogeophagus.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000400009

Use of roof as roost of Eumops perotis (Molossidae: Chiroptera) in southeast Brazil
Provedor de dados: 76
Autores: Breviglieri,Crasso Paulo B.; Esbérard,Carlos Eduardo L.
ABSTRACT The bat Eumops perotis (Schinz, 1821) is broadly distributed in the Americas. Studies on its biology are still scarce and the few studies available are relatively outdated. In the present study, we describe the biology of Eumops perotis in an artificial roost in the municipality of Pindorama, State of São Paulo, southeastern Brazil, which was monitored for 12 months. We captured 50 individuals; 43 adults (34 males and 9 females) and seven juveniles (three males and four females). Nineteen adults were recaptured throughout the year (15 males and four females) during samplings. Males were ~33% heavier than females. Males remained in the roost throughout the year, while females were absent in June, July, and August. The presence of males with scrotal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reproductive biology; Biometrics; Behavior; Diet.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100233

Breeding biology and conservation of hawk-eagles (Spizaetus spp.) (Aves, Accipitridae) in southern Atlantic Forest, Brazil
Provedor de dados: 76
Autores: Zilio,Felipe.
ABSTRACT Neotropical hawk-eagles (Spizaetus spp.) are large forest raptors, having low population densities and high sensitivity to human disturbance. The three species of Brazil’s Atlantic forest (S. ornatus, S. melanoleucus, S. tyrannus) are threatened and little is known of many aspects of their biology, such habitat requirements, nesting behavior, and food habitats. Here I present data about the breeding biology, diet and behavior of the Ornate Hawk-Eagle (S. ornatus; OHE) and the Black-and-white Hawk-Eagle (S. melanoleucus; BWHW), and estimations of distribution - extent of occurrence (EOO) - and population sizes for the three hawk-eagles of the southern Atlantic Forest. I compiled data from nine years of field studies done in Rio Grande do Sul and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution; Diet; Nest; Population estimate; Threatening status.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100237

A closer look at the main actors of Neotropical floodplain food webs: functional classification and niche overlap of dominant benthic invertebrates in a floodplain lake of Paraná River
Provedor de dados: 76
Autores: Saigo,Miguel; Marchese,Mercedes; Wantzen,Karl Matthias.
ABSTRACT Functional classification of animals is necessary to enhance the predictive power of food web models. However, while there is a large database for functional classification of benthic invertebrates (Functional Feeding Groups, FFG) in the temperate zone, the attribution of individual species of riverine invertebrates is still in its infancies in the Neotropical Region. Different authors hypothesized that diet breadth was larger in the Tropics, however detailed analysis are scarce. In the present study we aimed at classifying dominant benthic taxa of the Middle Paraná River floodplain (Argentina) into trophic guilds by diet and niche overlap analyses. We sampled twelve taxa of benthic invertebrates from a floodplain lake during low water season and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: KEYWORDS; Diet; Floodplain; Null models; Feeding habits; Paraná River.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100204

Trophic ecology and foraging behavior of Tropidurus hispidus and Tropidurus semitaeniatus (Squamata, Tropiduridae) in a caatinga area of northeastern Brazil
Provedor de dados: 76
Autores: Ribeiro,Leonardo B.; Freire,Eliza M. X.
This study aimed to analyze the seasonal variation in diet composition and foraging behavior of Tropidurus hispidus (Spix, 1825) and T. semitaeniatus (Spix, 1825), as well as measurement of the foraging intensity (number of moves, time spent stationary, distance traveled and number of attacks on prey items) in a caatinga patch on the state of Rio Grande do Norte, Brazil. Hymenoptera/Formicidae and Isoptera predominated in the diet of both species during the dry season. Opportunistic predation on lepidopteran larvae, coleopteran larvae and adults, and orthopteran nymphs and adults occurred in the wet season; however, hymenopterans/Formicidae were the most important prey items. The number of food items was similar between lizard species in both seasons;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Foraging strategies; Lizards; Semiarid; Sympatric species.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000200010

The importance of dietary calcium consumption in two species of semi-terrestrial grapsoid crabs
Provedor de dados: 76
Autores: Zanotto,Flavia P.; Pinheiro,Felipe; Sá,Marina G. e.
Calcium (Ca) is essential for crustaceans, due to calcium carbonate (CaCO3) deposition in the new exoskeleton to harden it. The purpose of this work was to study short term Ca balance in terms of dietary Ca ingestion in two phylogenetically related crabs (Superfamily Grapsoidea) showing different degrees of terrestrial adaptations: Sesarma rectum Randall, 1840 and Neohelice granulata (Dana, 1851). Dietary Ca ingestion was studied using purified diets with different Ca concentrations (0, 2.2 and 6.66 % Ca), together with measurements of Ca excretion and Ca hemolymph levels. The results showed that both crabs had the same response to foods containing different levels of Ca, with both species eating more of the high Ca diet. However, S. rectum consumed more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Semi-terrestrial crabs; Feeding behavior; Sesarma rectum; Neohelice granulata.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000300011

Influence of feeding plasticity on the fitness of small Neotropical characids
Provedor de dados: 76
Autores: Fiori,Leandro Fabrício; Alves,Gustavo Henrique Zaia; Hahn,Norma Segatti; Benedito,Evanilde.
Abstract This study investigated the diet of four characids [Hyphessobrycon eques (Steindachner, 1882), Odontostilbe pequira (Steindachner, 1882), Psellogrammus kennedyi (Eigenmann, 1903) and Serrapinnus calliurus (Boulenger, 1900) ] coexisting in two lagoons and checked for possible spatial differences and the influence on population fitness. The main goal was check if these species show better fitness according to the nutritional value of the food resource consumed. In this way, it is expected that the species show improved nutritional conditions (evidenced by the relative condition factor) when foraging for items of animal origin, and the reverse is expected when consuming items of plant origin and detritus. Sampling was conducted in August 2011. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fishes; Diet; Condition factor; Pantanal; Lagoons.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100206

Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina)
Provedor de dados: 76
Autores: López van Oosterom,María V.; Ocón,Carolina S.; Brancolini,Florencia; Maroñas,Miriam E.; Sendra,Eduardo D.; Rodrigues Capítulo,Alberto.
The diet and trophic relationships between the macroinvertebrates Phyllogomphoides joaquini Rodrigues Capítulo, 1992 and Coenagrionidae (Odonata), Chironomidae (Diptera), Diplodon delodontus (Lamarck, 1919) (Bivalvia: Hyriidae), and Pomacea canaliculata (Lamarck, 1822) (Gastropoda: Ampulariidae) and the fishes Pimelodella laticeps Eigenmann, 1917 (Heptapteridae) and Bryconamericus iheringii (Boulenger, 1887) (Characidae) in a temperate lowland lotic system in Argentina were assessed on the basis of gut contents and stable-isotope analyses. The feeding strategies were analyzed by the AMUNDSEN method. Relative food items contribution for the taxa studied indicated a generalist-type trophic strategy. In macroinvertebrates, in general, the values of stable...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Stable isotope; Temperate plain streams.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000100009

Comparative dietary analysis of Eurycheilichthys pantherinus and Pareiorhaphis hystrix: two Loricariidae species (Ostariophysi, Siluriformes) from Campos Sulinos biome, southern Brazil
Provedor de dados: 76
Autores: Dias,Tatiana S; Fialho,Clarice B.
This work was carried out in Marco river, São José dos Ausentes municipality, state of Rio Grande do Sul, southern Brazil. This region is located within the Campos Sulinos biome, an area of great biological importance due to its high diversity and endemism of fish. The feeding habits and food overlap between Eurycheilichthys pantherinus (Reis &amp;amp; Schaefer, 1992) (n=108) and Pareiorhaphis hystrix Pereira &amp;amp; Reis, 2002 (n=60) are described. Monthly samples were obtained between September 2000 and July 2001 with dipnets using the kick sampling technique. Stomach contents were analyzed based on frequency of occurrence, volumetric frequency and index of alimentary importance. The level of dietary specialization and food overlap were determined by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Feeding overlap; Detritivory; Insectivory; Sympatry.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000100006

Feeding ecology of Ozotoceros bezoarticus: conservation implicationsin Uruguay
Provedor de dados: 76
Autores: Cosse,Mariana; González,Susana; Gimenez-Dixon,Mariano.
The pampas deer (Ozotoceros bezoarticus Linnaeus, 1758) was in the recent past one of the most characteristic species in the Uruguayan grasslands. However, today the species is very rare, with small relict populations inhabiting in few ranches. To improve our understanding of pampas deer habitat use in modified ecosystems and propose management guidelines we analyzed the pampas deer feeding ecology at Los Ajos ranch. We performed an annual vegetation survey with the purpose to identify the main components of pampas's deer diet and the spatial overlap with livestock. Vegetation offer was characterized by predominance of monocotyledon plants; in three of the four sample periods. The preference values for the crops were positive for ryegrass in winter (0.24)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Habitat use; Mixed feeders; Niche overlap; Pampas deer.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000200007

Aplicação e pontos críticos no uso de enzimas para monogástricos.
Provedor de dados: 14
Autores: KRABBE, E. L.
bitstream/item/93187/1/FINAL7007.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Nutrição animal; Enzima; Dieta; Animal nutrition; Enzymes; Diet.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/972199

Terminação de ovinos alimentados com farelo do pedúnculo do caju e feno de leucena.
Provedor de dados: 14
Autores: LEITE, E. R.; BARROS, N. N.; BOMFIM, M. A. D.; CAVALCANTE, A. C. R.
bitstream/CNPC/20237/1/cot61.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Fattening.; Leucena; Ovino; Nutrição animal; Alimento para animal; Dieta; Farelo; Castanha de caju; Leguminosa; Feno; Confinamento; Terminação; Ganho de peso; Pedúnculo; Caju; Anacardium occidentale.; Sheep; Animal nutrition; Animal feeding; Diet; Weight gain; Brazil.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/534522

Metodologia de amostragem para avaliação da qualidade das pastagens nativas consumidas por bovinos no Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; COSTA, C.; SOUZA, G. da S. e S.; GARCIA, J. B.; PELLEGRIN, L. A.; GUTIERREZ, R.
Interação bovino x planta do Pantanal; Estratégia de forrageamento; Comportamento de pastejo; Teste de metodologia; Descrição da metodologia proposta para a avaliação do valor nutritivo e composição botânica das pastagens nativas consumidas por bovinos no Pantanal.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Nhecolândia; Native pasture; Quality; Pasture; Management.; Composição Botânica; Dieta; Gado de Corte; Manejo; Pastagem Nativa; Pastagem; Qualidade; Valor Nutritivo.; Pantanal; Dairy cattle; Diet; Nutritive value.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/801071

Melhoria na digestibilidade da dieta de frangos de corte criados de 1 a 42 dias de idade, utilizando associações de enzimas exógenas.
Provedor de dados: 14
Autores: AVILA, V. S. de; KRABBE, E. L.; LOPES, L. dos S.; KLEIN, C. H.; WERNICK, B.; SUREK, D.
bitstream/item/155464/1/final7770.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nutrição animal; Frango de corte; Dieta; Digestibilidade; Animal nutrition; Broiler chickens; Diet; Digestibility.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1063806

Efeito de diferentes idades a desmama na performance de vacas zebu adultas alimentadas com dois niveis de energia.
Provedor de dados: 14
Autores: MOORE, C. P.; ROCHA, C. M. C. da; VIANNA, J. H. U.
bitstream/item/102105/1/pesq-01.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Raca zebu; Zebu cattle.; Cerrado; Desmama; Dieta; Idade; Nutrição Animal; Vaca.; Animal feeding; Cows; Diet; Weaning.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549348

Variabilidade na determinação da qualidade da dieta de bubalinos em pastagem de Brachiaria humidicola.
Provedor de dados: 14
Autores: CAMARÃO, A. P.; OLIVEIRA, R. P. de; DUTRA, S.
bitstream/item/41645/1/Boletim-Pesquisa-130-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Bubalino; Buffalo; Pasture; Forage crop.; Brachiaria Humidicola; Dieta; Digestibilidade; Pastagem; Pastejo; Nutrição; Planta Forrageira; Valor Nutritivo.; Digestibility; Grazing; Diet; Nutritive value.; Nutrition.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381275

Microhistologia para identificação de plantas forrageiras consumidas por ovinos na caatinga: coleta de amostras e preparo de lâminas fecais e de referência vegetal.
Provedor de dados: 14
Autores: ROGERIO, M. C. P.; SANTOS, S. A.; POMPEU, R. C. F. F.; FERNANDES, F. E. P.; OLIVEIRA, D. de S.; ARAÚJO, A. R.; GUEDES, L. F.; ALVES, F. G. da S.; MOURÃO, E. B.
Este documento descrita a primeira parte da técnica microhistológica fecal que diz respeito à coleta de amostras vegetais e fecais na caatinga para o preparo de lâminas microhistológicas utilizadas na determinação de espécies vegetais efetivamente consumidas por ovinos na Caatinga.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Lâminas microhistológicas; Microhistologia fecal; Ovino; Nutrição animal; Alimento para animal; Composição botânica; Dieta; Caatinga; Forragem; Sheep; Animal nutrition; Diet; Botanical composition.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1088320

Criação massal da lagarta da soja (Anticarsia gemmatalis).
Provedor de dados: 14
Autores: HOFFMANN-CAMPO, C.B.; OLIVEIRA, E. B. de; MOSCARDI, F.
Processos gerais da criacao; Sala de criacao; Gaiolas; Copos descartaveis; Obtencao de ovos; Criacao de lagartas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Inseto praga; Dieta alimentar; Brasil; Parana; Soybean; Insect pest.; Anticarsia Gemmatalis; Controle Biológico; Criação Massal; Entomologia; Soja.; Diet; Brazil; Biological control; Entomology; Insect rearing.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445420

Dieta e desempenho de caprinos em bancos de proteína na região de Sobral, Ceará.
Provedor de dados: 14
Autores: ARAUJO FILHO, J. A. de; LEITE, E. R.; MESQUITA, R. C. M.
bitstream/item/36446/1/BP-15.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Banco de proteína; Forage plant; Protein bank; Efficiency.; Caprino; Nutrição animal; Planta forrageira; Leguminosa forrageira; Forragem; Performance; Eficiência nutricional; Goats; Animal nutrition; Diet; Legumes; Forage.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514259

Soro de queijo tipo coalho de leite bovino: alternativa para a terminação de pequenos ruminantes no Semiárido nordestino.
Provedor de dados: 14
Autores: ROGERIO, M. C. P.; MARTINS, E. C.; SHIOTSUKI, L.; BELCHIOR, E. B.; POMPEU, R. C. F. F.; FACO, O.; ARAÚJO, A. R.; OLIVEIRA, D. de S.; GUEDES, L. F.; ALVES, F. G. da S.; COSTA, C. dos S.
A publicação apresenta dados que subsidiem a utilização do soro de queijo tipo coalho de leite bovino (SLB) como ingrediente de dietas para terminação de pequenos ruminantes.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Soro de leite bovino; SLB; Fattening; Alternative feedstuff; Ovino; Cordeiro; Nutrição animal; Alimento alternativo; Alimento para animal; Dieta; Confinamento; Terminação; Sheep; Lambs; Animal nutrition; Animal feeding; Whey protein; Diet; Semiarid zones; Brazil.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1088203

Preferencia alimentar e uso do habitat do cavalo pantaneiro na Nhecolandia, Pantanal.
Provedor de dados: 14
Autores: SANTOS, S. A.; SILVA, M. P. da; MAURO, R. de A.
Entre os herbivoros que habitam o Pantanal, destaca-se o cavalo Pantaneiro, importante para o desempenho das atividades agropecuarias da regiao. A maioria dos pecuaristas mantem os cavalos juntamente com os bovinos, onde as pastagens nativas constituem a base alimentar da regiao. Este estudo foi conduzido no periodo de marco de 1990 a fevereiro de 1991, na fazenda Nhumirim da EMBRAPA-CPAP, Pantanal da Nhecolandia, para identificar a preferencia alimentar, uso do habitat, disponibilidade e composicao quimica das forrageiras consumidas pelo cavalo Pantaneiro, em diferentes epocas do ano. Na epoca da cheia (out./marco), de 31 forrageiras, as mais consumidas em importancia de ocorrencia foram Reimarochloa brasiliensis (28,3%), Axonopis purpusii (14,7%),...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cavalo pantaneiro; Horse.; Dieta; Pastagem.; Nutrição; Pantanal; Grazing; Diet; Nutrition.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787743

Utilização do ácido ascórbico (vitamina C) pelos peixes.
Provedor de dados: 14
Autores: ROTTA, M. A.
Importância do ácido ascórbico na nutrição dos peixes; Nutrição dos peixes; Histórico e evolução; Química; Absorção e funções metabólicas; Crescimento; Reprodução; Resposta ao estresse; Resistência a doenças; Formas do ácido ascórbico e doses utilizadas; Estabilidade; Bioatividade; Doses.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ácido ascórbico; Aquacultura; Vitamin.; Dieta; Peixe; Nutrição; Vitamina C.; Ascorbic acid; Aquaculture; Fish; Diet; Nutrition.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/799021

Minimização do custo de produção como critério na formulação de dietas para bovinos de corte.
Provedor de dados: 14
Autores: BARIONI, L. G.; LANNA, D. P.; TEDESCHI, L. O.; VELOSO, R. F.
RESUMO: O critério de minimização do custo de matéria seca (MCMS) é frequentemente adotado para a formulação de dietas para animais. Esse critério, entretanto, possui limitações para bovinos, pois a solução aplica-se apenas a um nível de desempenho animal esperado, enquanto na prática, existem vários níveis de desempenho possíveis de serem implementados. Outro critério de formulação de dietas é o de minimização do custo direto de alimentação por quilo de carcaça (MCA). O uso desse critério possibilita ganhos econômicos, porém, apresenta limitações quanto à robustez da solução devido a sua natureza não linear, o que demanda uso de algoritmos menos eficientes e poucos robustos. Existe, portanto, demanda por métodos para a solução desse tipo de problema. Um...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Modelagem matemática; Otimização; Algoritmo; Bovinae; Feeding; Optimization methods; Algorithm.; Alimentação; Bovino; Dieta; Gado de Corte; Nutrição Animal.; Animal nutrition; Diet; Mathematical models.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/565234

Fatores morfológicos que interferem na seleção de forrageiras pelos herbívoros.
Provedor de dados: 14
Autores: LEITE, E. R.; MESQUITA, R. C. M.
A composicao de dietas selecionadas pelos herbivoros tem sidomateria de grande interesse para os pesquisadores de pastagens nativas.As razoes pelas quais os animais selecionam uma dada planta, ou partes dela, consistem em quatro parametros morfologicos: tamanho do corpo, tipo de sistema digestivo (cecal ou rumiante), relacao entre o volume rumino-reticular e o peso do animal, e tamanho da boca, o tamanho e o tipo de sistema digestivo determinam o tempo e a energia dispendidos para que o herbivoro pasteje seletivamente; a relacao entre o volume rumino-reticular e o peso corporal determina o tipo de alimento que o ruminante processo mais eficientemente, e o tamanho da boca determina a habilidade do herbivoro em selecionar partes de uma determinada planta.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Browse plants; Selection.; Feeding habits; Pastagem nativa; Planta forrageira; Seleção; Nutrição animal; Dieta; Pastejo; Hábito alimentar; Animal nutrition; Diet; Rangelands; Pastures; Forage.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514256

Silagem de leucena e de gliricídia como fontes protéicas em dietas para vacas em lactação tendo como volumoso a palma forrageira semi-desidratada.
Provedor de dados: 14
Autores: CARVALHO FILHO, O. M. de.
bitstream/CPATSA/8798/1/COT82.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Opuntia spp; Green manure; Roughage.; Produção animal; Dieta; Gliricidia; Leucaena Leucocephala; Leucaena; Lactação; Palma Forrageira; Silagem; Vaca.; Animal production; Gliricidia sepium; Diet; Cows; Lactation; Silage.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134141

Dieta e nutricao de crocodilianos.
Provedor de dados: 14
Autores: SANTOS, S. A.
A familia Crocodylidae inclui tres subfamilias: Crocodylinae, Alligatorinae e Gavialinae (Bellairs, 1987). Nessas, existem 22 especies de crocodilianos reconhecidas, das quais 15 sao usadas comercialmente para manufatura de artigos de luxo. No mundo em geral, os crocodilianos estao sendo aproveitados economicamente de tres formas: (1) "wild harvest" - manejo extensivo na natureza, geralmente seguindo criterios de extracao e monitoramento; (2) "ranching" - os ovos ou filhotes sao apanhados na natureza e criados ate o tamanho de abate e (3) "farming" - criacao englobando todo o ciclo reprodutivo da especie (Campos et al., 1994). O interesse pela criacao de jacares em cativeiro tem aumentado no Brasil e em muitos paises. No entanto, os criadores tem...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Animal silvestre; Crocodile.; Crocodilo; Dieta; Jacaré; Nutrição.; Diet; Nutrition; Wildlife.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792179

Métodos práticos para cálculos de dietas para suplementação animal.
Provedor de dados: 14
Autores: RODRIGUES FILHO, J. A.; LOURENCO JUNIOR, J. de B.; BATISTA, H. A. M.
bitstream/item/58716/1/CPATU-Doc63.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Suplementação mineral; Feeding; Suplementation; Grass; Analysis.; Alimentação; Análise; Animal; Composição Química; Dieta; Gramínea; Nutrição.; Chemical composition; Diet; Nutrition.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379306

Spatial distribution of foraging in female Antarctic fur seals Arctocephalus gazella in relation to oceanographic variables: a scale-dependent approach using geographic information systems
Provedor de dados: 5
Autores: Guinet, Christophe; Dubroca, L; Lea, Ma; Goldsworthy, S; Cherel, Yan; Duhamel, Guy; Bonadonna, F; Donnay, Jp.
The distribution of foraging activity for female Antarctic fur seals was investigated at Cap Noir (49 degrees 07 'S, 70 degrees 45 'E), Kerguelen Island in February 1998. Eleven females were fitted with a satellite transmitter and time-depth recorder. The 2 data sets were combined in order to locate diving activity of the seals. The occurrence of fish in the diet of the seals was investigated by the identification of otoliths in 55 scats collected at the breeding colony during the study period. Oceanographic variables were measured simultaneously by direct sampling and satellite remote sensing. The mesopelagic fish community was sampled at 20 stations along 4 transects, where epipelagic trawls were conducted at night at 50 ni depth. We then investigated,...
Tipo: Text
Palavras-chave: Antarctic fur seal; Diet; Oceanographic conditions; Foraging; Geographic information system.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/00247/35843/34354.pdf

Manta birostris, predator of the deep? Insight into the diet of the giant manta ray through stable isotope analysis
Provedor de dados: 5
Autores: Burgess, Katherine B.; Couturier, Lydie I. E.; Marshall, Andrea D.; Richardson, Anthony J.; Weeks, Scarla J.; Bennett, Michael B.
The characterization of diet for the giant manta ray Manta birostris has been problematic given their large-scale movement patterns and the difficulty in obtaining stomach contents from this species. The large majority of existing information is based on observational data limited to feeding events at the sea surface during daylight. Recently discovered aggregation sites for the giant manta ray off mainland Ecuador are some of the most accessible to date and provide a unique opportunity for researchers to gather much needed information on this elusive species. To assess how important surface zooplankton is to giant manta ray diet, we conducted stable isotope analysis (N-15 and C-13) on M. birostris muscle and surface zooplankton. Trophic position estimates...
Tipo: Text
Palavras-chave: Diet; Eastern tropical Pacific Ocean; Mesopelagic; Trophic ecology; Elasmobranch; Planktivore.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00363/47463/47486.pdf

Relationships between age, growth, diet and environmental parameters for anchovy (Engraulis encrasicolus L.) in the Bay of Benisaf (SW Mediterranean, west Algerian coast)
Provedor de dados: 5
Autores: Bacha, Mahmoud; Moali, Aissa; Benmansour, Nasr-eddine; Brylinski, Jean-michel; Mahe, Kelig; Amara, Rachid.
Age, growth and diet of anchovy were studied for the first time from samples collected in the Bay of Benisaf (west Algerian coast) during summer (spawning period) and autumn (recruitment period) 2007. Age structure and growth parameters were determined by otolith (sagitta) analyses. The von Bertalanffy growth function fitted to age-length data showed that most of anchovy growth is achieved during the first year of life, suggesting that this stock is primarily supported by the smallest age groups and has a strong dependence on recruitment. There were no significant differences between males and females, and pooled mean parameters were: L infinity = 15.61 cm, k = 0.75 per year and to, -1.32 years. Whatever the age-class anchovy is strictly zooplanktivorous....
Tipo: Text
Palavras-chave: Engraulidae; Engraulis encrasicolus; MED; West Algeria; Anchovy; Growth; Age; Diet; Ontogenetic.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12212/9046.pdf

The Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratios
Provedor de dados: 5
Autores: Castro-ruiz, Diana; Andree, Karl B.; Solovyev, Mikhail M.; Fernández-méndez, Christian; García-dávila, Carmen; Cahu, Chantal; Gisbert, Enric; Darias, Maria J.
Pseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region. However, knowledge of the nutritional needs during the early life stages is necessary for improving growth and reducing the incidence of cannibalism, factors that limit the success of its commercial farming. This study aimed at evaluating the influence of four diets containing different protein and lipid levels (30:15, 30:10, 45:15, or 45:10 in %) in the digestive physiology and performance of early juveniles. The results showed that the dietary protein:lipid as well as carbohydrate levels and ratios influenced differently the whole-body...
Tipo: Text
Palavras-chave: Neotropical fish; Aquaculture; Digestive enzymes; Gene expression; Nutrition; Juveniles; Histology; Development; Macronutrients; Diet.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/79019/81420.pdf

Ontogenetic and spatial variation in the diet of hake (Merluccius merluccius) in the Bay of Biscay and the Celtic Sea
Provedor de dados: 5
Autores: Mahe, Kelig; Amara, R; Bryckaert, T; Kacher, M; Brylinski, J.
Analysis of the diet of trawl-caught hake (Merluccius merluccius) from three locations in the Bay of Biscay and the Celtic Sea in autumn 2001 showed that small hake fed almost exclusively on crustaceans (mainly euphausiids), but that there was a significant shift towards a fully piscivorous diet in hake &gt; 23 cm. A change in fish prey was also size-dependent, because smaller hake (&lt; 30 cm) preyed on small pelagic fish (3-12 cm), such as horse mackerel, anchovy, and pilchard, and larger hake on larger demersal prey (12-23 cm), such as blue whiting. There was a significant positive relationship between hake and fish prey length. In terms of fish prey selectivity, hake exhibited particular preference for small pelagic prey (anchovy, pilchard, and...
Tipo: Text
Palavras-chave: Spatial variations; Prey selectivity; Northeast Atlantic; European hake; Diet; Cannibalism.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3849.pdf

Biological and ecological factors related to trace element levels in harbour porpoises (Phocoena phocoena) from European waters
Provedor de dados: 5
Autores: Lahaye, V; Bustamante, Paco; Law, J.r; Learmonth, J.a; Santos, M.b.; Boon, J.p.; Rogan, E; Dabin, W; Addink, M.j.; Lopez, A; Zuur, A.f.; Pierce, G.j.; Caurant, Florence.
Selected trace elements (Cd, Cu, Hg, Se, Zn) were measured in the kidneys and the liver of 104 harbour porpoises (Phocoena phocoena) stranded along the coasts of France, Galicia (Spain), Ireland, Scotland (UK), and the Netherlands. Generally, relatively low concentrations of toxic elements were encountered in the tissues of European porpoises, except for two individuals, which displayed high hepatic Hg concentrations. Also, elevated Cd levels obtained in Scottish porpoises could be related to their feeding preferences and this result suggests an increase of the proportion of cephalopods in their diet with latitude. Moreover, significant geographical differences were seen in hepatic Zn concentrations; the elevated Zn concentrations displayed by porpoises...
Tipo: Text
Palavras-chave: Tracers; Multivariate analysis; Diet; Age; Marine mammals; Zinc; Cadmium; Mercury; Heavy metals.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2920.pdf

Étude du régime alimentaire de l’ichtyofaune du lac ichkeul (Tunisie)
Provedor de dados: 5
Autores: Shaiek, Moez; Romdhane, Mohamed Salah; Le Loc'H, Francois.
In order to define the structure of trophic network of Ichkeul Lake in Tunisia, diet of main teleost fish species was determined during two seasons, wet and dry. A total of 491 stomachs from 16 teleost species was analyzed. The analysis revealed spatial variability (East under marine influence and West with more continental effect) and temporal one (wet and dry seasons). Based on stomach contents, nine trophic groups were revealed, including eight monospecific groups. The main prey are mudflat snails (Hydrobia ventrosa, H. acuta), bivalves (Abra alba, Cerastoderma glaucum), amphipods and isopods, as well as seagrass (Potamogeton pectinatus, Ruppia cirrhosa) and water brackish algae (Ulva spp. and Chaetomorpha spp., Cladophora sp., Polysiphonia sp.).
Tipo: Text
Palavras-chave: Ichthyofauna; Tunisia; Ichkeul Lake; Stomach contents; Prey; Diet; Trophic group.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00294/40541/73188.pdf

Tracking, feather moult and stable isotopes reveal foraging behaviour of a critically endangered seabird during the non-breeding season
Provedor de dados: 5
Autores: Meier, Rhiannon E.; Votier, Stephen C.; Wynn, Russell B.; Guilford, Tim; Mcminn Grive, Miguel; Rodriguez, Ana; Newton, Jason; Maurice, Louise; Chouvelon, Tiphaine; Dessier, Aurelie; Trueman, Clive N.
Aim  The movement patterns of marine top predators are likely to reflect responses to prey distributions, which themselves can be influenced by factors such as climate and fisheries. The critically endangered Balearic shearwater Puffinus mauretanicus has shown a recent northwards shift in non-breeding distribution, tentatively linked to changing forage fish distribution and/or fisheries activity. Here, we provide the first information on the foraging ecology of this species during the non-breeding period. Location  Breeding grounds in Mallorca, Spain, and non-breeding areas in the north-east Atlantic and western Mediterranean. Methods  Birdborne geolocation was used to identify non-breeding grounds. Information on feather moult (from digital images) and...
Tipo: Text
Palavras-chave: Balearic shearwater; Diet; Discards; Feeding ecology; Fisheries; Migration; Trophic.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00358/46912/46817.pdf

Natural abundance of N-15 and C-13 in fish tissues and the use of stable isotopes as dietary protein tracers in rainbow trout and gilthead sea bream
Provedor de dados: 5
Autores: Beltran, M.; Fernandez-borras, J.; Medale, Francoise; Perez-sanchez, J.; Kaushik, Sadasivam; Blasco, J.
For developing efficient diets, two sets of experiments examined whether the use and allocation of dietary protein can be traced by labelling with stable isotopes (N-15 and C-13) in two culture fish (Oncorhynchus mykiss and Sparus aurata). In the first experiment, natural abundance and tissue distribution of these isotopes were determined, by measuring the delta C-13 and delta N-15 values by isotopic ratio mass spectrometry, in fingerlings (14-17 g) adapted to diets differing in the percentage of fish meal replacement by plant protein sources. For both species, delta N-15 and delta C-13 were greater in tissues with higher protein and lower lipid content. Delta N-15 of diets and tissues decreased as replacement increased, suggesting delta N-15 can be used...
Tipo: Text
Palavras-chave: Sea bream; Rainbow trout; Protein; Diet; Delta N 15; Delta C 13.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6966.pdf

Composition et variations spatio-temporelles du régime alimentaire de Trachurus trachurus (Carangidae) de la côte atlantique marocaine
Provedor de dados: 5
Autores: Wahbi, Fatima; Le Loc'H, Francois; Berreho, Amina; Benazzouz, Aissa; Ben Mhmed, Abdelouahed; Errhif, Ahmed.
A study of the diet of the Atlantic horse mackerel Trachurus trachurus (Linnaeus, 1758) was carried out on the Atlantic coast of Southern Morocco, located from Cap Boujdour to Cap Blanc (26 degrees 30'N-21 degrees N latitude). This area is characterized by a permanent upwelling and is among the highly productive ecosystems of the worldwide ocean. The diet of T. trachurus was studied through qualitative and quantitative analysis of stomach contents. Samples were collected during the warm (June-July-August) and the cold seasons (November-December) in 2007 and 2008. Acoustic surveys were carried out on board of the Moroccan Amir Moulay Abdellah and the Russian Atlantida oceanographic vessels. A total of 456 stomachs were analyzed, exhibiting a diversified...
Tipo: Text
Palavras-chave: Carangidae; Trachurus trachurus; Atlantic; Morocco; Diet.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00275/38652/73175.pdf

Response of common carp (Cyprinus carpio) larvae to different dietary levels and forms of supply of medium-chain fatty acids
Provedor de dados: 5
Autores: Fontagne, Stéphanie; Corraze, Genevieve; Bergot, Pierre.
The effects of dietary medium-chain fatty acids (MCFA) on survival, growth and fatty acid composition of first-feeding carp larvae were investigated in two 21-day feeding trials. In trial 1, one diet CO was supplemented with 10% coconut oil, two diets, M1 and M2 with 1.7 or 4.2% interesterified medium-chain triacylglycerols (MCT), and two other diets T1 and T2 with 1% tricaprylin and 0.7% tricaprin, or 2.5% tricaprylin and 1.7% tricaprin. The five diets were made isolipidic (18% of dry diet) with triolein and compared to a control diet without MCFA. With a low dietary level (1% of dry diet) of caprylic acid (C8:0), final survival and mean weight of larvae fed CO, M1 and T1 were not significantly different from those of control (68 +/- 6% and 62 +/- 8 mg,...
Tipo: Text
Palavras-chave: Cyprinus carpio; Triglycerides; Fatty acids; Diet; Larval nutrition; Cyprinus carpio; Triglycérides; Acides gras; Régime; Nutrition larvaire.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-540.pdf

Trophic ecology influence on metal bioaccumulation in marine fish: Inference from stable isotope and fatty acid analyses
Provedor de dados: 5
Autores: Le Croizier, Gael; Schaal, Gauthier; Gallon, Regis; Fall, Massal; Le Grand, Fabienne; Munaron, Jean-marie; Rouget, Marie-laure; Machu, Eric; Le Loc'H, Francois; Lae, Raymond; De Morais, Luis Tito.
The link between trophic ecology and metal accumulation in marine fish species was investigated through a multi-tracers approach combining fatty acid (FA) and stable isotope (SI) analyses on fish from two contrasted sites on the coast of Senegal, one subjected to anthropogenic metal effluents and another one less impacted. The concentrations of thirteen trace metal elements (As, Cd, Co, Cr, Cu, Fe, Li, Mn, Ni, Pb, Sn, U, and Zn) were measured in fish liver. Individuals from each site were classified into three distinct groups according to their liver FA and muscle SI compositions. Trace element concentrations were tested between groups revealing that bioaccumulation of several metals was clearly dependent on the trophic guild of fish. Furthermore,...
Tipo: Text
Palavras-chave: Trace elements; Biochemical tracers; Diet; Contamination; Senegal; Tropical fish.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00348/45908/45707.pdf

Diet overlap between harbour porpoise and bottlenose dolphin: An argument in favour of interference competition for food?
Provedor de dados: 5
Autores: Spitz, Jérôme; Rousseau, Yann; Ridoux, Vincent.
In aquatic ecosystems, competitive interactions are occasionally described. Violent attacks on harbour porpoises by bottlenose dolphins were reported and it was proposed that this behavior could result from competitive interactions for food. This hypothesis implies that the two predators should share all or part of they prey range. In this work, we describe the diets of each predator in the Bay of Biscay and adjacent areas from stomach content analysis of stranded animals. The diet of the harbour porpoise was mostly composed of small schooling fish living close to the seafloor (98 percent by mass). The diet of the bottlenose dolphin was characterised by the presence of large specimens of demersal fish (91 percent by mass) and cephalopods. Several prey...
Tipo: Text
Palavras-chave: North Eastern Atlantic; Tursiops truncatus; Phocoena phocoena; Diet; Top predator; Interference competition.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1986.pdf

Feeding of diving predators and diel vertical migration of prey: King penguins' diet versus trawl sampling at Kerguelen Islands
Provedor de dados: 5
Autores: Bost, Charles-andré; Zorn, T; Le Maho, Yvon; Duhamel, Guy.
The diving behavior and diet composition of King penguins were examined during summer 1995 at Kerguelen Islands. This was in relation to real-time estimations of diel prey availability during 2 sampling sessions totaling 10 d at sea. During daylight hours King penguins performed medium to deep dives of 120-250 m. At night, they dived no deeper than 60 m. Daytime, dusk and night-time sampling of prey was performed in the depth ranges corresponding to the depths of the penguins' dives in this study. The diversity in mesopelagic fish was found to be highest during the night at 0-50 m (15 vs 9 species during the day), and their number was up to 20-fold higher at these depths at night than during the day at the 150-250 m depth layer. The 3 myctophid species...
Tipo: Text
Palavras-chave: King penguins; Diet; Diel vertical migration; Myctophids; Foraging behavior.
Ano: 2002
URL: https://archimer.ifremer.fr/doc/00247/35842/34355.pdf

Feeding strategy of Downs herring larvae (Clupea harengus L.) in the English Channel and North Sea
Provedor de dados: 5
Autores: Denis, Jeremy; Vallet, Carole; Courcot, Lucie; Lefebvre, Valerie; Caboche, Josselin; Antajan, Elvire; Marchal, Paul; Loots, Christophe.
This study aims to characterize the larval feeding strategy of the Downs sub-population of North Sea herring (Clupea harengus L.). Diet composition, vacuity rate and prey selectivity of larvae from 8 to 15 mm collected during the International Bottom Trawl Survey (IBTS) - MIK sampling from 2008 to 2013 were assessed by direct observation of their gut contents using Scanning Electron Microscopy (SEM). The high contribution of protists and small zooplanktonic prey observed in the gut contents proved the relevance of SEM to study the diet of first feeding larvae. The relatively low vacuity rate of 45% suggests that food may not be a limiting factor for Downs herring larvae in winter. These larvae appeared to be omnivorous and there was a clear shift in term...
Tipo: Text
Palavras-chave: Diet; Feeding strategy; Selectivity index; Scanning electronic microscopy; Downs herring larvae; Gut content.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00345/45606/45226.pdf

Effect of genistein-enriched diets on the endocrine process of gametogenesis and on reproduction efficiency of the rainbow trout Oncorhynchus mykiss
Provedor de dados: 5
Autores: Bennetau Pelissero, Catherine; Breton, Bernard; Bennetau, Bernard; Corraze, Genevieve; Le Menn, Françoise; Davail Cuisset, Blandine; Helou, Chantal; Kaushik, Sadasivam.
Three practical diets were formulated to contain 0, 500, or 1000 ppm genistein. The three diets were distributed for 1 year to groups of rainbow trout undergoing their first gametogenesis and until spawning. Growth performance of rainbow trout was not affected by dietary treatments. Plasma cholesterol levels were equivalent between groups. In males, a slight but constant induction of vitellogenin (VTG) synthesis and a decrease in testosterone levels were observed. A slight decrease in plasma levels of beta FSH and beta LH was noticed at the end of spermatogenesis in the male fish fed a diet with 500 ppm (genistein) (from 2.16 +/- 0.39 to 1.47 +/- 0.23 for beta FSH and from 0.44 +/- 0.09 to 0.31 +/- 0.09 for beta LH). There was a significantly reduced 17...
Tipo: Text
Palavras-chave: Diet; Reproduction; GTH; Vitellogenin; Steroid; Trout; Genistein.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-738.pdf

Effect of shear velocity and flow regimes on scallop post-larval detachment feed on two different diets
Provedor de dados: 5
Autores: Gagne, Renee; Tremblay, Rejean; Olivier, Frederic; Pernet, Fabrice; Miner, Philippe; Samain, Jean-francois.
Through biological flume experiments, we studied the effect of shear velocity and attachment period on the percent detachment of Pecten maximus post-larvae of different sizes reared on two experimental diets. The first diet, (Pavlova lutheri, Isochrysis galbana, Chaetoceros calcitrans), which served as a reference diet (PTC), is commonly used in bivalve hatcheries; the second is the PTC diet with the addition of Rhodomonas salina (PTCR). Our results indicate that the detachment of post-larvae fed PTCR diet showed significant interactions between scallop length, attachment period and shear stress, while the post-larvae feed with the PTC diet showed only effect of shear stress factor. Furthermore, post-larvae exposed to various flume velocities showed...
Tipo: Text
Palavras-chave: Attachment; Pecten maximus; Benthic boundary layer; Flume; Diet.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00111/22219/20056.pdf

Non-Essential Trace Elements Dietary Exposure in French Polynesia: Intake Assessment, Nail Bio Monitoring and Thyroid Cancer Risk
Provedor de dados: 5
Autores: Zidane, Monia; Ren, Yen; Xhaard, Constance; Leufroy, Axelle; Côte, Suzanne; Dewailly, Eric; Noël, Laurent; Guérin, Thierry; Bouisset, Patrick; Bernagout, Solène; Paaoafaite, John; Iltis, Jacques; Taquet, Marc; Suhas, Eric; Rachédi, Frédérique; Boissin, Jean Louis; Sebbag, Joseph; Shan, Larrys; Bost-bezeaud, Frédérique; Petitdidier, Patrice; Rubino, Carole; Gardon, Jacques; De Vathaire, Florent.
Background: In French Polynesia, thyroid cancer mortality and incidence is reported to be the highest in the world. Excessive levels of non-essential trace elements (nETE) in the body are associated with several types of cancer. Objective: The present study aims to provide quantitative information on food contamination by mercury (Hg), lead (Pb), arsenic (As) and cadmium (Cd) in French Polynesia and its potential correlation with measurements performed in fingernails of Polynesians, and then to investigate the potential association between these nETE and different thyroid cancer risks. Methods: The study population included 229 interviewed cases and 373 interviewed controls We performed a descriptive analysis of Polynesian food and examined the association...
Tipo: Text
Palavras-chave: Thyroid cancer; NETE; Diet; Fingernail; Case-control study.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00660/77190/78617.pdf

Comparison of dietary phospholipids and neutral lipids: effects on gut, liver and pancreas histology in Atlantic cod (Gadus morha L.) larvae
Provedor de dados: 5
Autores: Wold, P. -a.; Hoehne-reitan, K.; Cahu, Chantal; Zambonino, Jose-luis; Rainuzzo, J.; Kjorsvik, E.
The aim of the present study was to compare effects of dietary n-3 highly unsaturated fatty acids (HUFA) being incorporated in the phospholipid (PL) or in the neutral lipid (NL) fraction of the larval feed, on larval growth and histology of digestive organs in Atlantic cod (Gadus morhua L.) larvae. Three isoproteic and isolipidic diets, labelled according to the percentage of n-3 docosahexaenoic acid and eicosapentaenoic acid contained in NL1 or in PL1 and PL3 of the diets, were fed to cod larvae from 17 days post hatching (dph) to 45 dph. In the liver, hepatocytes and their nuclei were smaller in NL1 larvae compared with the PL larvae; the mitochondrial membrane structures were less dense and the amount of lipids observed in the liver was significantly...
Tipo: Text
Palavras-chave: Stereology; Phospholipids; Nutrition; Lipid class; Larvae; Histology; Diet; Cod.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6777.pdf

First record of Siganus randalli (Teleost, Siganidae) in New Caledonia, and comments on its diet
Provedor de dados: 5
Autores: Moleana, Thibaud; Della Patrona, Luc; Meziane, Tarik; Letourneur, Yves.
Background  Most of the 29 Siganidae species are widely distributed through the Indo-Pacific area. In New Caledonia, these family was represented by 12 species. The present report is the first record of Siganus randalli in New Caledonian waters and provide information on its diet. Methods  Three specimens of Siganus randalli were caught in shallow mangrove waters of the southern part of New Caledonia. Their stomach contents and isotopic signatures (carbon and nitrogen) were analyzed and compared to others siganids species. Results and conclusion  This note provides the most southerly record of the rabbitfish Siganus randalli, which extends its distribution range by 1200 km southward and 1300 km southwest. The data on its diet, when compared with other...
Tipo: Text
Palavras-chave: Variegated rabbitfish; Diet; Stomach content; Isotope; SW pacific.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00350/46161/45859.pdf

Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community
Provedor de dados: 5
Autores: Trenkel, Verena; Pinnegar, J; Dawson, W; Du Buit, M; Tidd, A.
The spatial and temporal structure of predator-prey relationships in the Celtic Sea was investigated for 4 commercially important predator species (cod Gadus morhua, hake Merluccius merluccius, megrim Lepidorhombus whiffiagonis, and whiting Merlangius merlangus) using stomach-content and bottom-trawl survey data for the period 1982 to 1995. Blue whiting Micromesistius poutassou were consumed more often during the summer months, whereas mackerel Scomber scombrus and Trisopterus spp. (poor cod T minutus, Norway pout T esmarkii, and bib T luscus) were found more often in predator stomachs during the winter half-year. On a spatial scale, blue whiting was consumed over the shelf edge, in accordance with their higher densities in the environment, while mackerel,...
Tipo: Text
Palavras-chave: Spatial distribution; Season; Celtic Sea; Preference; Stomach contents; Diet.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3619.pdf

Understanding the dynamics of δ13C and δ15N in soft tissues of the bivalve Crassostrea gigas facing environmental fluctuations in the context of Dynamic Energy Budgets (DEB)
Provedor de dados: 5
Autores: Emmery, Antoine; Lefebvre, Sebastien; Alunno-bruscia, Marianne; Kooijman, S. A. L. M.
We studied the dynamics of stable isotopes δ13C and δ15N of an opportunistic suspension feeder the Pacific oyster (Crassostrea gigas) to better understand the factors that influence the trophic enrichment (trophic-shift, Δ) between primary producers and consumers. Most of the previous studies on this topic do not quantify mass fluxes or isotopic discrimination phenomena in the organism, which are two pillars in isotope ecology. We used a dynamic energy budget (DEB) approach (Kooijman, 2010) to quantify i) the fluxes of elements and isotopes in C. gigas soft tissues and ii) the impact of the scaled feeding level, the organism mass and the isotopic ratio of food on the "trophic-shift" Δ, and isotope turnover in tissues. Calibration and parametrization...
Tipo: Text
Palavras-chave: Oyster; Isotopic ratio; Discrimination; Trophic-shift; Diet; DEB theory.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15434/12784.pdf

Evaluation de l'effet de l'environnement et de l'alimentation sur l'apparition d'anomalies de développement chez l'alevin de bar (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Menu, Bruno; Robin, Jh; Gouillou-coustans, Marie-francoise.
Larvae from a natural spawn of sea bass were distributed into 3 larval rearing lines in 2 distant sites, after simulated or true transportation. The specific rearing methods in the specific rearing environment of each laboratory were used :starvation under darkness for 160 degrees days and first feeding on Artemia (PP) in the Mediterranean laboratory of Palavas;first feeding on rotifers at 75 degrees days in the laboratory of Brest (Brittany) in 250 liters (BB) tanks or 35 liters tanks (Bb) of a separate rearing line. In the 250 liters tanks in Brest, 2 additional treatments before first feeding on Artemia were tested :starvation up to 160 degrees days under darkness with no bubbling (BP);starvation up to 160 degrees days under continuous illumination with...
Tipo: Text
Palavras-chave: Pisciculture; Élevage larvaire; Malformations; Effets de l'environnement; Alimentation; Fish culture; Larval rearing; Abnormalities; Environmental effects; Diet.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00272/38284/36472.pdf

Lost in the North: The first record of Diretmichthys parini (Post and Quéro, 1981) in the northern North Sea
Provedor de dados: 5
Autores: Cresson, Pierre; Rouquette, Manuel; Marco-miralles, Francoise; Dufour, Jean-louis; Causse, Romain; Bouchoucha, Marc; Mahe, Kelig.
In June 2015, an individual of Diretmichthys parini (Post and Quero, 1981) was trawled at 530 m depth, in the North Sea off Norway and donated to research. This capture, the first for this species in the North Sea was the northernmost recorded so far, and provided an opportunity to document some aspects of the biology and ecology of this data-poor species. This individual was a female, 331 mm total length of 33 years old, with low mercury content in muscle and liver (~ 0.2 μg g− 1 wet mass). Stable isotope ratios (C and N) in muscle and liver were consistent with the planktonic diet expected for this species. The capture of this fish at the northern latitude known so far would be consistent with the extension of the home range and the latitudinal shift...
Tipo: Text
Palavras-chave: Diretmichthys parini; Diet; North Sea; Latitudinal shift; Mercury.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00357/46805/46977.pdf

Trophic ecology of commercial-size meagre, Argyrosomus regius, in the Bay of Biscay (NE Atlantic)
Provedor de dados: 5
Autores: Hubans, Barbara; Chouvelon, Tiphaine; Begout, Marie-laure; Biais, Gerard; Bustamante, Paco; Ducci, Lillian; Mornet, Francoise; Boiron, Anne; Coupeau, Yann; Spitz, Jerome.
In the north-eastern Atlantic, meagre (Argyrosomus regius) is one of the largest fish living on the shelf and this species has important commercial interest. Over the past two decades, large variations in meagre abundance have been observed with pluri-annual cycles but the factors involved in such variations are still unclear. Trophic interactions between meagre and other species (both prey and competitors) might be one explanatory variable of the observed variations in meagre recruitment and abundance. In the present study, we described the diet of commercial-size meagre in the Bay of Biscay from stomach content and stable isotope analyses, and explored its dietary ontogeny. We found that commercial-size meagres were mostly piscivorous with a diet...
Tipo: Text
Palavras-chave: Diet; SIAR; Ontogeny; Marine top predators; Sciaenidae.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00384/49531/50028.pdf

Larval development and fatty acid composition of Ostrea edulis (L.) fed four different single diets from conditioning to pre-settlement
Provedor de dados: 5
Autores: Gonzalez-araya, Ricardo; Robert, Rene.
Survival, growth and fatty acid composition of Ostrea edulis larvae (L.) fed four different single species, microalgal diets, Tisochrysis lutea (T), Chaetoceros neogracile (Cg), Skeletonema marinoi (Sm) or Tetraselmis suecica (Ts) from broodstock to pre-settlement, were studied. Lower larval growth (5.5m to 6.5m/d) was recorded in progeny continuously fed single S.marinoi or T.suecica, whereas good growth was achieved with single T.lutea (7.8m/d). Larvae, originated from broodstock receiving Sm or Ts, exhibited growth compensation when fed a bispecific balanced diet (TCg). This did not occur when broodstock and larvae were fed Cg or T, for which single or mixed diets led to similar larval growth. Furthermore, survival was high (&gt;90%) regardless of...
Tipo: Text
Palavras-chave: Broodstock conditioning; Diet; Larval development; Ostrea edulis.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00438/54986/56483.pdf

Exploitation of intertidal feeding resources by the Red Knot Calidris canutus under megatidal conditions (Bay of Saint-Brieuc, France)
Provedor de dados: 5
Autores: Sturbois, Anthony; Ponsero, Alain; Desroy, Nicolas; Le Mao, Patrick; Fournier, Jerome.
The feeding ecology of the red knot has been widely studied across its wintering range. Red knots mainly select bivalves and gastropods, with differences between sites due to variation in prey availability. Shorebird’s diet is also influenced or controlled by the tidal regime. The aim of this paper is to demonstrate the adaptation of foraging red knots to the megatidal environment. The variation in their diet during tidal cycles was studied in the bay of Saint-Brieuc, a functional unit for this species. The method used combined macrofauna, distribution of foraging birds and diet data. Comparative spatial analyses of macrofauna and distribution of foraging red knots have shown that the bay's four benthic assemblages are exploited by birds. By analysing...
Tipo: Text
Palavras-chave: Diet; Benthos; Intertidal flat; Megatidal environment; Bay of Saint-Brieuc.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00226/33767/32194.pdf

New insights from age determination on toxic element accumulation in striped and bottlenose dolphins from Atlantic and Mediterranean waters
Provedor de dados: 5
Autores: Lahaye, Virginie; Bustamante, Paco; Dabin, W; Van Canneyt, O; Dhermain, F; Cesarini, C; Pierce, G; Caurant, Florence.
This study aimed at comparing toxic element (Hg, Cd) bioaccumulation in relation to age for bottlenose (Tursiops truncatus) and striped dolphins (Stenella coeruleoalba) from Mediterranean and Atlantic waters. Metal concentrations were also measured in selected prey to infer metal exposure through the diet. As expected, Mediterranean prey exhibited the highest Hg levels, probably as a consequence of the Hg enrichment of the Mediterranean Sea. Comparing the predators from each area and taking age into account, Mediterranean bottlenose dolphins displayed higher Hg levels than Atlantic dolphins (p = 0.032), whereas Mediterranean striped dolphins did not (p = 0.691). The consumption of Myctophid fish, which showed the highest Hg levels (105 +/- 80 ng g(-1)...
Tipo: Text
Palavras-chave: Exposure; Diet; Cadmium; Mercury; Tursiops truncatus; Stenella coeruleoalba.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-4713.pdf

Associations between tissue fatty acid composition and physiological traits of performance and metabolism in the seabass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Chatelier, Aurelien; Mckenzie, David; Prinet, Aurelie; Galois, Robert; Robin, Jean; Zambonino, Jose-luis; Claireaux, Guy.
Seabass were fed for 4 months with diets where the lipid was provided as either canola oil (CO), palm oil ( PO) or fish oil (FO), to generate diversity in their tissue fatty acid (FA) composition and investigate how this influenced major traits of exercise performance, cardiac performance and respiratory metabolism. In particular, based upon previous observations, we investigated the hypothesis that enriching the fish tissues with oleic and linoleic acids (OA, 18:1n-9 and LA, 18:2n-6, respectively) from the CO and PO diets would improve maximum exercise and cardiac performance, and increase aerobic metabolic scope. This proved to be the case; exercise respirometry on bass fitted with cardiac flow probes revealed that those fed CO and PO diets had a...
Tipo: Text
Palavras-chave: Diet; Fatty acid; Cardiovascular performance; Metabolism; Swimming; Dicentrarchus labrax; Seabass.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1860.pdf

Bioaccumulation of persistent organic pollutants in female common dolphins (Delphinus delphis) and harbour porpoises (Phocoena phocoena) from western European seas: Geographical trends, causal factors and effects on reproduction and mortality
Provedor de dados: 5
Autores: Pierce, G; Santos, M; Murphy, S; Learmonth, J; Zuur, A; Rogan, E; Bustamante, Paco; Caurant, Florence; Lahaye, V; Ridoux, Vincent; Zegers, B; Mets, A; Addink, M; Smeenk, C; Jauniaux, T; Law, R; Dabin, W; Lopez, A; Farre, J; Gonzalez, A; Guerra, A; Garcia Hartmann, M; Reid, R; Moffat, C; Lockyer, C; Boon, J.
Concentrations of polychlorinated biphenyls (PCBs) in blubber of female common dolphins and harbour porpoises from the Atlantic coast of Europe were frequently above the threshold at which effects on reproduction could be expected, in 40% and 47% of cases respectively. This rose to 74% for porpoises from the Southern North Sea. PCB concentrations were also high in southern North Sea fish. The average pregnancy rate recorded in porpoises (42%) in the study area was lower than in the western Atlantic but that in common dolphins (25%) was similar to that of the western Atlantic population. Porpoises that died from disease or parasitic infection had higher concentrations of persistent organic pollutants (POPs) than animals dying from other causes. Few of the...
Tipo: Text
Palavras-chave: Diet; Reproduction; Persistent organic pollutants; Delphinus delphis; Phocoena phocoena.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-7314.pdf

Ecological Specialization Within a Carnivorous Fish Family Is Supported by a Herbivorous Microbiome Shaped by a Combination of Gut Traits and Specific Diet
Provedor de dados: 5
Autores: Escalas, Arthur; Auguet, Jean-christophe; Avouac, Amandine; Seguin, Raphaël; Gradel, Antoine; Borrossi, Lucie; Villéger, Sébastien.
Animals have been developing key associations with micro-organisms through evolutionary processes and ecological diversification. Hence, in some host clades, phylogenetic distance between hosts is correlated to dissimilarity in microbiomes, a pattern called phylosymbiosis. Teleost fishes, despite being the most diverse and ancient group of vertebrates, have received little attention from the microbiome perspective and our understanding of its determinants is currently limited. In this study, we assessed the gut microbiome of 12 co-occurring species of teleost representing a large breadth of ecological diversity and originating from a single family (i.e., the Sparidae). We tested how host evolutionary history, diet composition and morphological traits are...
Tipo: Text
Palavras-chave: Fish gut microbiome; Sparidae; Phylosymbiosis; Morphological traits; Diet; Herbivory; Ecological outlier.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00682/79408/81955.pdf

Does diet in Celtic Sea fishes reflect prey availability?
Provedor de dados: 5
Autores: Pinnegar, J; Trenkel, Verena; Tidd, A; Dawson, W; Du Buit, M.
Feeding preferences of Celtic Sea fishes were investigated using a database of stomach content records, collected between 1977 and 1994. The diet of cod Gadus morhua, hake Merluccius merluccius, megrim Lepidorhombus whiffiagonis, whiting Merlangius merlangus and saithe Pollachius virens changed markedly as the animals grew larger, and although large predators generally chose larger bodied prey, the variability of prey sizes consumed also increased. Large predators continued to select small, low value, benthic prey (e.g. Callionymus spp. and Trisopterus spp.) which were easier to catch, rather than larger, more energy lucrative pelagic prey (e.g. mackerel Scomber scombrus), even though these pelagic prey-fishes were nearly always available and were often...
Tipo: Text
Palavras-chave: Stomach contents; Preference; Diet; Celtic Sea; Availability.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-607.pdf

Effect of Diet Contains Sesame Seed on Epididymal Histology of Adult Rat
Provedor de dados: 77
Autores: Mahabadi J,Amini; Khodayari,M; Bafrani H,Hassani; Nikzad,H; Taherian,A.
Sesamin is a major lignan constituent of sesame seed and considered as a key factor in a number of beneficial effects on human health. Sesame leaves intake improve and increase epididymal spermatocytes reserve in adult male sprague dawley rat. The present study was aimed to investigate the effects of contain sesame seed on epididymis histologhical structure. Thirty adult male rats were divided into two groups of 15 rats each. The regimen group received diet containing 30% sesame seed, while the control group received diet along 12 weeks. The right epididymis were removed and minced into several pieces on a specimen bottle containing normal saline for some few minutes to allow the sperms to become motile and swim out and sperm parameters were analyzed. Left...
Tipo: Journal article
Palavras-chave: Diet; Epididymis; Sesame seed; Sperm; Hormone.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100042

Somatic, Biochemical and Hepatic Alterations in Wild Type Mice Chronically Fed High Fat Diet
Provedor de dados: 77
Autores: Neves,Renata Heisler; Barros Alencar,Alba Cristina Miranda de; Aguila,Marcia Barbosa; Mandarim-de-Lacerda,Carlos Alberto; Machado-Silva,José Roberto; Gomes,Delir Corrêa.
This study evaluated whether a high fat diet (HFC group) induces overweight, hepatic steatosis and plasma lipoproteins level alteration compared to standard chow diet (SC group). Female mice were submitted to each diet over 6 months. Body mass and food intake were evaluated weekly throughout the experiment. Total cholesterol, TG, LDL-c, HDL-c and VLDL-c were analyzed. Mice were sacrificed to remove liver, spleen, heart and intestine. The volume of the organs was determined according to the submersion method. Fixed livers were embedded in paraffin and stained with hematoxylin and eosin and Masson's trichrome. The analysis used a video microscope system and a test-system with 42 test-points. The volume density was estimated for hepatocytes, steatosis and...
Tipo: Journal article
Palavras-chave: Hypercholesterolemia; Experimental model; Mice; Cholesterol; Diet; Liver.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500018

Effects of Transgenic Soybean and Organic Soybean on Rat Penis Morphology during the Aging Process
Provedor de dados: 77
Autores: Corrêa,L. B. N. S; Contreiras,E. C; Daleprane,J. B; Boaventura,G. T; Figueiredo,M. A; Chagas,M. A.
The contents of soybean can modify the structure of the reproductive system, especially, when consumed for prolonged periods. In this study, we evaluated the effects of the consumption of transgenic soybean on rat penis morphology after prolonged use. Wistar rats (n = 30) were divided into three groups according to diet: Transgenic Soybean (TS) group, Organic Soybean (OS) group and Control (C) group. After 455 days of intake, the rats were sacrificed and the penises were excised and fixed in formalin for subsequent histological processing. The samples were stained with hematoxylin and eosin, Weigert’s resorcin-fuchsin stain, and picrosirius red with polarization. The images were scanned for the histomorphometric analyses of the corpora cavernosa, corpus...
Tipo: Journal article
Palavras-chave: Phytoestrogens; Diet; Soybeans; Male; Morphology; Morphometry.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300037

Effect of Statins and Aerobic Physical Exercise on Liver Function in Dyslipidemic Rats: Morphometric Study
Provedor de dados: 77
Autores: Accioly,Marilita Falângola; Souza,Dorotéia Rossi Silva; Padulla,Susimary Aparecida Trevizan; Camargo Filho,José Carlos Silva; do Carmo,Edna Maria; Martins,Alex Tadeu; Brandão,Antônio Carlos; Azoubel,Reinaldo.
The present study was carried out to evaluate the effect of statins associated with physical exercise (PE) in liver cells in dyslipidemic rats through cariometry. The animals were divided into six groups: animals subjected to a hypercholesterolemic diet (HD), simvastatin, with (G1) and without (G2) physical exercise (PE); HD submitted (G3) or not (G4) to PE, and commercial food diet (F) with (G5) and without (G6) PE. Histological analysis of the liver was performed by staining the slides with hematoxylin and eosin. The cariometric study included measuring the major and minor diameters of the hepatocytes nuclei. The Shapiro-Wilk test was also performed. To determine the differences among the groups, the Kruskal-Wallis Test with Dunn's post-test were...
Tipo: Journal article
Palavras-chave: Simvastatin; Exercise; Diet; Cariometry.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400026

Microarchitectural Adaptations in the Stomach of African Tree Pangolin (Manis tricuspis)
Provedor de dados: 77
Autores: Ofusori,D. A; Caxton-Martins,E. A; Keji,S. T; Oluwayinka,P. O; Abayomi,T. A; Ajayi,S. A.
The microarchitecture of the pangolin's stomach favouring the high chitinous diet has been less waived into, despite extensive morphological investigations. Histological analysis of the microanatomy will provide powerful tools for interpretation to yield reliable insights. We investigated this by fixing the tissues in 10% formol saline for histological analysis. Serial sections at 5 µm thickness were subjected to general staining methods for lightmicroscopic study (Haematoxylin and eosin, Van Gieson's and Verhoeff's). The results revealed basic structural arrangements in their coats, with a modification of the epithelial lining of cardia and fundus into stratified squamous keratinized epithelium. These modifications were also reflected in the distribution...
Tipo: Journal article
Palavras-chave: Stomach; Microarchitecture; Histological analysis; Diet; Coats.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300031

Main food categories in diets of sigmodontine rodents in the Monte (Argentina)
Provedor de dados: 81
Autores: Giannoni,Stella M.; Borghi,Carlos E.; Dacar,Mariana; Campos,Claudia M.
The present study aims at improving the characterization of the dietary status of four sigmodontine rodents (Graomys griseoflavus, Akodon molinae, Calomys musculinus and Eligmodontia typus) by quantifying the major food categories (leaves, stems, seeds, Prosopis flexuosa pods, and arthopods) with a modified microhistological technique. The use of this new technique enhances the likelihood of accurately identifying plant parts, such as stems, seeds and fruits that are usually underestimated. Results reveal that hard tissues, like seeds, are a major resource in the diets while other hard tissues, such as stems and P. flexuosa pods, appear for the first time in the diet of all four species of sigmodontine rodents. Rodent species display considerable trophic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Food categories; Microhistological technique; Monte desert; Sigmodontine rodents.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200005

Food habits of pumas (Puma concolor) in a semiarid region of central Mexico
Provedor de dados: 81
Autores: de la Torre,J. Antonio; de la Riva,Gilfredo.
The puma's diet in a semi-arid region of central Mexico was determined by scat analyses. The study was conducted at two sites in the state of Aguascalientes: the Natural Protected Area of Sierra Fría and the El Muerto and Laurel ranges. Fifty-five prey items were found in thirty-eight scat samples. The white-tailed deer was the main prey item, followed by the collared peccary and raccoon. Livestock was an important prey item in terms of biomass, with a greater incidence of livestock remains in the scats from the El Muerto and Laurel ranges, possibly due to a reduced native prey base caused by human activities.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Aguascalientes; Cougar; Diet; Mexico.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100018

New data on the natural history and morphometrics of Lutreolina crassicaudata (Didelphimorphia) from central-eastern Argentina
Provedor de dados: 81
Autores: Muschetto,Emiliano; Cueto,Gerardo R.; Suárez,Olga V.
We provide new data on the natural history and morphometrics of one of the least studied didelphid marsupial species, Lutreolina crassicaudata. Field work was conducted in central-eastern Argentina during two consecutive years. Juveniles and sub-adults were captured during summer and autumn. Reproduction showed seasonality with a continuous breeding period from spring to summer (September to February). The analysis of 17 scats belonging to 17 individuals showed mainly seeds and vegetal remains, as well as amphibians, birds and invertebrates. Sexual dimorphism in juveniles and sub-adults was registered for the first time, being males larger and heavier than females.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Opossum; Reproduction; Seasonal fluctuation; Sexual dimorphism.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832011000100006

Características Químicas de salados y hábitos alimenticios de la Danta de montaña (Tapirus pinchaque Roulin, 1829) en los Andes Centrales de Colombia
Provedor de dados: 81
Autores: Lizcano,Diego J.; Cavelier,Jaime.
The chemical composition of salt licks and the diet of the mountain tapir (Tapirus pinchaque) were studied in the upper montane rain forests (2900-3700 m), in the Parque Regional Natural Ucumari and Parque Nacional Natural Los Nevados, Colombia. We collected water samples from the salt licks, 28 feces and voucher specimens of plants with tapir browsing sign. The chemical analysis of the water from salt licks showed higher concentrations of Na, N-NH4 y N-NO3when compared to the water of a nearby stream used as control. The nitrogen of the water at the salt lick is probably being fixed by Nostoc, a Cynobacteria associated with Gunneramanicata and G. magnifolia, two plants located in the upper part of the rocky cliff from where the water drains to the salt...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombia; Diet; Salt licks; Tapir; Tapirus pinchaque.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832004000200004

Faecal analysis as a complementary approach to the study of feeding ecology in the common marmoset (Callithrix jacchus Linnaeus, 1758)
Provedor de dados: 81
Autores: Silvestre,Saulo M; Dantas,José O; da Rocha,Patrício Adriano; Beltrão-Mendes,Raone; Ferrari,Stephen F.
We evaluated the application of faecal analysis as a complementary approach to direct observation in the study of Callithrix jacchus feeding ecology. Our results indicate that animal foods may be more commonly consumed (based on faecal samples-FS; 61.48% of diet) than previously thought (e.g., only 22.83% based on observational data-OD). Whereas FS provide better data on animal prey, it was less effective than OD in identifying plant items. Six insect orders-including Dermaptera and two hymenopteran families, not previously recorded in marmoset diet-were identified through FS, which is thus shown to be useful in characterizing diet, especially in insectivorous primates.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Arthropods; Diet; Marmosets; Methods; Artrópodes; Dieta; Métodos; Sagui.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832016000100020

Food habits and carnivory by a small size opossum, Gracilinanus agilis (Didelphimorphia: Didelphidae)
Provedor de dados: 81
Autores: Lessa,Leonardo G; Geise,Lena.
We investigated the diet of gracile mouse opossum, Gracilinanus agilis (Burmeister, 1854), from the analysis of 144 fecal samples collected between November 2009 and October 2011 in an area of savanna riparian forest in the Brazilian Cerrado. Invertebrates were the most frequently consumed food items (96.5%) followed by fruits of pioneer species (29.8%) and flowers (6%). We also observed the presence of fragments of bird vertebrae and downs in samples from 2 adult males, this being the first record of predation on small vertebrates by G. agilis. The presence of fragments of birds in the feces of the gracile mouse opossum suggests that despite the small size of this species and its primarily insectivorous habits, small vertebrates may be included in its diet.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Cerrado; Didelphimorphia; Diet; Feeding ecology; Marsupials.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832014000100016

Variation in the nocturnal foraging distribution of and resource use by endangered Ryukyu flying foxes (Pteropus dasymallus) on Iriomotejima Island, Japan
Provedor de dados: 16
Autores: Lee, Y.-F.; Takaso, T.; Chiang, T.-Y.; Kuo, Y.-M.; Nakanishi, N.; Tzeng, H.-Y.; Yasuda, K.
The nocturnal distribution and resource use by Ryukyu flying foxes was studied along 28 transects, covering five types of habitats, on Iriomote Island, Japan, from early June to late September, 2005. Bats were mostly encountered solitarily (66.8%) or in pairs (16.8%), with a mean linear density of 2.5 ± 0.6 bats/km of transect/night. Across the island, however, bat densities were distributed non-randomly among transect-nights, not correlated with transect length, and showed a slightly clumped distribution (variance/mean = 3.3). Outskirt trails contributed higher values to the relative importance of bat abundance, but the highest mean abundances occurred mostly at village sites on the west coast, which on average devoted only a quarter of their land area to...
Tipo: Article / Letter to the editor
Palavras-chave: Abundance; Bats; Chiroptera; Diet; Figs; Frugivores; Habitat; 42.84.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/311809

A study of stomach contents of Cory's shearwater, Calonectris diomedea borealis (Cory, 1881) (Aves: Procellariidae), from the Macaronesian Islands
Provedor de dados: 16
Autores: Hartog, J.C. den; Clarke, M.R.
Data are presented on the diet of Cory's Shearwater Calonectris diomedea borealis (Cory, 1881) resulting from stomach investigations based on 18 birds from Hierro (Canary Islands), 5 from Selvagem Grande (Selvagens or Salvage Islands), 2 from São Miguel and 1 from São Jorge (Azores), collected between 1977 and 1981. These data confirm the general idea that this shearwater feeds principally on fish and squid. The glandular stomachs of 9 birds from Hierro contained significant quantities of food, varying in wet weight from ca. 4-40 gm; in four cases more or less complete squids were present, all Ommastrephes bartrami (Le Sueur, 1821). In addition, the gizzards of all 26 birds, except one, contained fragments of squid beaks belonging to 12 species. Several of...
Tipo: Article / Letter to the editor
Palavras-chave: Procellariidae; Calonectris diomedea borealis (Cory; 1881); Diet; Stomach contents; Cephalopoda; SE North Atlantic; Macaronesia; 42.83.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318278

Feeding ecology of the culpeo in southern Ecuador: wild ungulates being the main prey
Provedor de dados: 16
Autores: Guntiñas, M.; Lozano, J.; Cisneros, R.; Narváez, C.; Armijos, J.
This study details for the first time the food habits of the culpeo or Andean fox (Lycalopex culpaeus) in high areas of the Ecuadorian Andes during a complete annual cycle. Our objective was to identify prey species, calculate their contribution to diet and test for temporal variation. In total, 304 Andean fox scats were collected within the Podocarpus National Park (Loja province, southern Ecuador). By analysing the content of scats 413 prey items were identified and classified into eight prey groups. Subsequently, the frequency of occurrence (FO) for each prey group was calculated per month together with the relative contribution of estimated consumed biomass (CB). In addition, the Shannon-Wiener’s index was calculated as a measurement of monthly diet...
Tipo: Article / Letter to the editor
Palavras-chave: Andes; Canids; Carnivores; Cloud forest; Diet; Paramo; Podocarpus; Trophic diversity.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/637723

Host Plants of the Grasshopper Cornops aquaticum (Bruner) (Orthoptera: Acrididae) in the Wetland of Poconé, MT, Brazil
Provedor de dados: 82
Autores: FERREIRA,SORAIA A.; VASCONCELLOS-NETO,JOÃO.
The grasshopper Cornops aquaticum (Bruner) lives permanently on aquatic macrophytes in floodplains of tropical South America. Its host plants and feeding preference were determined by field observations, crop analysis and feeding tests in the laboratory. Macrophytes were sampled and their petioles were examined for potential egg deposition in order to reveal host plant specificity. Sub-samples were dissected in the laboratory and eggs were counted directly whereas the rest of the sample was kept in net-covered water tanks aiming to verify hatching of nymphs. C. aquaticum fed and oviposited on Eichhornia azurea and Pontederia cordata (Pontederiaceae) in the field. Out of 140 fore-guts analyzed from free-living grasshoppers, 75% contained Pontederiaceae...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Insecta; Herbivory; Diet.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400003

Biology of Bonagota cranaodes (Meyrick) (Lepidoptera: Tortricidae) on seven natural foods
Provedor de dados: 82
Autores: Bentancourt,Carlos M.; Scatoni,Iris B.; Gonzalez,Alvaro; Franco,Jorge.
The effect of seven natural diets on the development and reproduction of Bonagota cranaodes (Meyrick) was evaluated under laboratory conditions. The experiments were carried out at the temperature of 23 ± 1ºC, with 70 ± 10% of RH and a photoperiod of 16:8h (L:D). The larvae were reared on apple, grapevine and honeysuckle (Lonicera japonica). On the first two foods three types of diet were used: spring leaves, summer leaves and fruits. The number of instars varied from five to seven. The larvae reared on apple leaves had, in general, fewer instars than those reared on grapevine and honeysuckle leaves. The duration of larval development differed between diets. The larvae reared on spring apple leaves showed the shortest duration, and those on fruit the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Leafroller; Diet; Host plant; Immature stage; Reproductive biology.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000300004

Biology and occurrence of Inga Busk species (Lepidoptera: Oecophoridae) on Cerrado host plants
Provedor de dados: 82
Autores: Diniz,Ivone R.; Bernardes,Carolina; Rodovalho,Sheila; Morais,Helena C.
We sampled Inga Busk species caterpillars weekly in the cerrado on 15 plants of Diospyros burchellii Hern. (Ebenaceae) from January 2002 to December 2003, on 30 plants of Caryocar brasiliense (Caryocaraceae) from July 2003 to June 2004, and since 1991 on several other plant species. In total we found 15 species of Inga on cerrado host plants. Nine species were very rare, with only one to five adults reared. The other six species occurred throughout the year, with higher abundance during the dry season, from May to July, coinciding with overall peaks of caterpillar abundance in the cerrado. Caterpillars of the genus Inga build shelters by tying and lining two mature or old leaves with silk and frass, where they rest and develop (a common habit found in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caryocar; Diet; Diospyros; Leaf shelter; Oecophorinae.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000400001

Aging and food source effects on mandibular stylets teeth wear of phytophagous stink bug (Heteroptera: Pentatomidae)
Provedor de dados: 82
Autores: Depieri,Rogério A; Siqueira,Fábio; Panizzi,Antônio R.
Studies were conducted to test the effect of age and food sources on wear of the mandibular teeth of the phytophagous pentatomid, Euschistus heros (F.). The total length (µm) of the area bearing the mandibular teeth, the length of the 1st tooth, and the height of the 2nd tooth for teneral (&lt; 1 day-old) adults were significantly greater than that of adults fed on natural [green bean, Phaseolus vulgaris pods, raw shelled peanuts, Arachis hypogaea, and mature soybean, Glycine max seeds] for 30 or 60 days. Adults fed on artificial dry diet showed, in general, similar results to those of teneral adults. Force (Newtons) required penetrating the natural foods was significantly greater than that required penetrating the artificial diet. The greater hardness of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euschistus heros; Mouthpart; Morphology; Penetration resistance; Diet.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600017

Effects of different protein concentrations on longevity and feeding behavior of two adult populations of Ceratitis capitata Wiedemann (Diptera: Tephritidae)
Provedor de dados: 82
Autores: Plácido-Silva,Maria do Carmo; Silva Neto,Alberto M. da; Zucoloto,Fernando S.; Joachim-Bravo,Iara S.
The effects of protein intake on two adult male and female populations of Ceratitis capitata Wiedemann were assessed. One population consisted of flies reared for twenty years in the laboratory (Lab-pop); the other population consisted both of flies reared in the laboratory for approximately fifteen years and of the periodically introduced wild flies (Hybrid-pop). Three diets were tested: a no-yeast diet and two diets containing yeast (protein source) at the concentrations 6.5 g or 1.5 g per 100 ml diet. The parameters analyzed were: adult longevity, diet intake with and without yeast, and discrimination threshold for yeast. Protein intake increased Lab-pop adult longevity and did not affect longevity of the Hybrid-pop. Longevity in each population was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fruit fly; Nutrition; Discrimination threshold; Diet; Survival.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000600004

Foraging behavior of the queenless ant Dinoponera quadriceps Santschi (Hymenoptera: Formicidae)
Provedor de dados: 82
Autores: Araújo,Arrilton; Rodrigues,Zenilde.
The search for and ingestion of food are essential to all animals, which spend most of their lives looking for nutritional sources, more than other activities such as mating, intra-specific disputes or escaping from predators. The present study aims to describe and quantify several aspects of foraging behavior, diet and food transport in the queenless ant Dinoponera quadriceps Santschi in a secondary Atlantic forest, Northeastern Brazil. Three colonies were randomly selected at a distance of at least 50 m from one another. On leaving the colony, worker ants were followed until their return, with no nutritional provision or interference with their activities. Activities were recorded using focal time sampling with instantaneous recording every minute for 10...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foraging pattern; Diet; Orientation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000200002

Intertidal life: field observations on the clingfish Gobiesox barbatulus in southeastern Brazil
Provedor de dados: 83
Autores: Pires,Tiago H. S; Gibran,Fernando Z.
The clingfish Gobiesox barbatulus shows nocturnal feeding activity, spending most part of the day stationary and adhered to the inferior part of stones. To feed, this species uses the sit-and-wait and particulate feeding tactics. It shows a carnivorous feeding habit mostly consuming small benthic crustaceans. It can move in two ways: (1) "stone-by-stone", sliding its ventral sucker disc across each stone and (2) "surf", when it takes advantage of the energy of the ebbing tide to quickly cross a distance up to four times its body length. Its reproductive season occurs between the end of spring and the beginning of summer, during which time it lays about 2,000 adhesive eggs of 1 mm each in a single layer under stones. It has more than one egg-laying session...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activity; Microhabitat; Diet; Reproduction; Gobiesocidae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100022

Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil
Provedor de dados: 83
Autores: Casatti,Lilian; Castro,Ricardo M. C.
The ecomorphology of 14 fish species resident in a headwater riffles area of the São Francisco river, southeastern Brasil, was analyzed and combined with diet and feeding behavior data, previously obtained by us. The three larger species groups formed in the ecomorphological analysis were found to reflect primarily microhabitat occupation in the following manner: a) nektonic characids with compressed bodies, lateral eyes and lateral pectoral fins, with diurnal and opportunistic feeding habits (Astyanax rivularis, Bryconamericus stramineus, and Bryconamericus sp.); b) nektobenthic characiforms and siluriforms with fusiform bodies and expanded pectoral fins, including sit-and-wait characidiins, predators of aquatic insect larvae (Characidium fasciatum and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish community; Feeding tactics; Diet; Morphology; Rheophilic; Phylogeny.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200006

Feeding ecology of the leaf fish Monocirrhus polyacanthus (Perciformes: Polycentridae) in a terra firme stream in the Brazilian Amazon
Provedor de dados: 83
Autores: Catarino,Michel F; Zuanon,Jansen.
Monocirrhus polyacanthus (Polycentridae) is a remarkable leaf-mimicking fish that inhabits streams, lake and river margins along the Amazon basin. Despite its obvious predatory habits and being frequently present in the international aquarium trade, little is known about its diet under natural conditions. We examined 35 specimens of leaf fish (28.5-82.0 mm SL), of which 19 had food the stomach. Thirty-three preys were found in the stomach contents, 19 of which were measured (2.0-33.0 mm total length). Up to five preys were found in the stomach contents of a single leaf fish specimen. The diet of the leaf fish was constituted by fish (63.15% FO, n = 12) and invertebrates (36.3% FO, n = 4); fish and invertebrate preys occurred together in three stomachs...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Diet; Feeding behavior; Piscivory; Camouflage.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100022

Feeding ecology of two sympatric species of large-sized groupers (Perciformes: Epinephelidae) on Southwestern Atlantic coralline reefs
Provedor de dados: 83
Autores: Freitas,Matheus O.; Abilhoa,Vinicius; Spach,Henry L.; Minte-Vera,Carolina V.; Francini-Filho,Ronaldo B.; Kaufman,Les; Moura,Rodrigo L.
ABSTRACT Red and black groupers are large-bodied opportunistic ambush predators commonly found in Southwestern Atlantic tropical reefs. We investigated the diet of both species in order to detail ontogenetic, spatial and temporal trends, and to assess the extent of overlap in resource use between these two sympatric predators on the Abrolhos Bank, Brazil. Decapods and fishes were the main food items of Epinephelus morio while fishes were the main prey of Mycteroperca bonaci. Both diets were significantly influenced by body size and habitat, but only smaller individuals of E. morio feed almost exclusively on crustaceans. While the two groupers rely on many of the same prey types, coexistence may be facilitated by E. morio feeding more heavily on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abrolhos Bank; Diet; Epinephelus morio; Feeding overlap; Mycteroperca bonaci.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200206

The opportunistic feeding and reproduction strategies of the annual fish Cynopoecilus melanotaenia (Cyprinodontiformes: Rivulidae) inhabiting ephemeral habitats on southern Brazil
Provedor de dados: 83
Autores: Gonçalves,Cristina da Silva; Souza,Ursulla Pereira; Volcan,Matheus Vieira.
Most Rivulidae fishes are popularly known as annual fishes which live in ephemeral environments such as pools, that obligatorily dry out seasonally causing the death of adult individuals. They have unique biological characteristics such as small body size, early sexual maturation, continuous reproduction, an elaborated courtship behavior, and a great reproductive capacity among fishes. The rivulids are widely distributed in North, Central and South America. In this study, the diet and reproductive biology of Cynopoecilus melanotaenia was analyzed. A total of 263 specimens were collected and the analysis of 233 gastrointestinal contents revealed an invertivorous diet composed mainly of small crustaceans (Cladocera, Amphipoda, and Ostracoda) and immature...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aplocheiloidei; Diet; Fecundity; Invertivorous; Opportunism.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000100019

Resource use by the facultative lepidophage Roeboides affinis (Günther, 1868): a comparison of size classes, seasons and environment types related to impoundment
Provedor de dados: 83
Autores: Albrecht,Miriam P.; Reis,Vanessa C. S.; Caramaschi,Érica P.
We report the consumption of scales and other food resources by the facultative lepidophage Roeboides affinis in the upper Tocantins River where it was impounded by the Serra da Mesa Hydroelectric Dam. We compared the diet among size classes, between dry and wet seasons, and between sites with distinct water flow characteristics (lotic vs. lentic) related to the distance from the dam and phase of reservoir development. As transparency and fish abundance increased after impoundment, we expected a higher consumption of scales in lentic sites. Likewise, habitat contraction, higher transparency and decrease in terrestrial resources availability, would promote a higher consumption of scales. Scales were consumed by 92% of individuals and represented 26% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Hydrological regime; Impoundment; Scale-eating; Tocantins-Araguaya basin.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200387

Feeding ecology of immature Lithodoras dorsalis (Valenciennes, 1840) (Siluriformes: Doradidae) in a tidal environment, estuary of the rio Amazonas
Provedor de dados: 83
Autores: Barbosa,Thiago Augusto Pedroso; Barthem,Ronaldo Borges; Montag,Luciano Fogaça de Assis.
Studies of feeding ecology are important for the evaluation of interactive processes in fish communities. This study evaluated the feeding ecology of Lithodoras dorsalis (Doradidae) from streams within the Amazon estuary delta (Brazil), a macro-tidal area, on different pluviometric periods. A total of 371 young specimens was collected during 12 months of sampling (July 2010 to June 2011). The species diet was composed of 28 food items analyzed by Repletion Index, Alimentary Index and Niche Breadth. Young L. dorsalis was classified as herbivore with a frugivory tendency due to the high importance of fruit and seeds in its diet. Food intake varied among sampled months, with the lowest intake being recorded during the rainy-dry season transition period, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Doradidae; Feeding Index; Rock-bacu; Thorny catfish.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200341

Feeding ecology of Lutjanus analis (Teleostei: Lutjanidae) from Abrolhos Bank, Eastern Brazil
Provedor de dados: 83
Autores: Freitas,Matheus Oliveira; Abilhoa,Vinícius; Costa e Silva,Gisleine Hoffmann da.
Diet and feeding ecology of the mutton snapper Lutjanus analis were investigated in the Abrolhos Bank, Eastern Brazil, the largest and richest coral reefs in the South Atlantic, where about 270 species of reef and shore fishes occur. To evaluate seasonal and ontogenetic shifts in the diet, specimens of L. analis were obtained through a fish monitoring program in four cities in southern Bahia State, from June 2005 to March 2007. Stomachs from 85 mutton snappers that ranged in size from 18.1 to 74.0 cm TL were examined. Prey were identified to the lowest possible taxon and assessed by the frequency of occurrence and volumetric methods. Variations in volume prey consumption were evaluated using non-metric multi-dimensional scaling ordination, analysis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Mutton snapper; Ontogenic variations; Seasonal.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200019

Feeding habits of Thoracocharax stellatus (Characiformes: Gasteropelecidae) in the upper rio Tocantins, Brazil
Provedor de dados: 83
Autores: Netto-Ferreira,André L.; Albrecht,Míriam P.; Nessimian,Jorge L.; Caramaschi,Érica P.
The silver hatchetfish Thoracocharax stellatus is one of the approximately 200 fish species recorded for the upper rio Tocantins, in the region where it was impounded by the Serra da Mesa hydroelectric dam. Analysis of the stomach contents of 88 specimens revealed a diet consisting almost entirely of insects (99.6%), most of which were terrestrial (87.6%). Ants, beetles, and mayflies were the main food items. Dawn and dusk seemed to be the periods of highest foraging activity for T. stellatus. As a specialist on terrestrial insects, this species has a close connection with the region near the river bank, where prey is provided from the associated riparian vegetation. Despite the impoundment and depletion of the land-water ecotone observed in later stages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hatchetfishes; Autoecology; Diet; Tocantins-Araguaia basin.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100009

Habitat use, trophic, and occurrence patterns of Inpaichthys kerri and Hyphessobrycon vilmae (Pisces: Characidae) in Amazonian streams
Provedor de dados: 83
Autores: Zeni,Jaquelini O.; Sensato-Azevedo,Luisa Martins; Santos,Eduardo Fernando dos; Brejão,Gabriel Lourenço; Casatti,Lilian.
Abstract Fish ecomorphology and diet can help us to understand species response to impacts and coexistence patterns. Thus, we developed a comparative analysis of ecomorphology and diet of Inpaichthys kerri and Hyphessobrycon vilmae and tested for environmental variables that explain their abundance in headwater streams. We sampled streams from the Aripuanã River basin, Mato Grosso State, Brazil. We sampled environmental variables following a standardized protocol and used 30 and 80 individuals from each species to obtain ecomorphological attributes and feeding index, respectively. To identify environmental variables that influence species abundance, we developed generalized additive mixed models. Inpaichthys kerri presented broader and deeper caudal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deforestation; Diet; Ecomorphology; Marginal grasses; Species coexistence.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300208

Feeding ecology of Rivulus luelingi (Aplocheiloidei: Rivulidae) in a Coastal Atlantic Rainforest stream, southern Brazil
Provedor de dados: 83
Autores: Abilhoa,Vinícius; Vitule,Jean Ricardo Simões; Bornatowski,Hugo.
Feeding habits of the killifish Rivulus luelingi collected in a black water stream of the Coastal Atlantic Rainforest in southern Brazil were investigated. Eight samplings were made between April 2003 and January 2004. The diet, assessed through a similarity matrix with the estimated contribution values of food items, included microcrustaceans, aquatic immature insects (larvae and pupae), aquatic adult insects, terrestrial insects, insect fragments, spiders, and plant fragments. Differences in the diet according to temporal variations (months) were registered, but changes related with size classes evaluated and high/low precipitation period were not observed. The species presented an insectivorous feeding habit, and its diet in the studied stream was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Feeding habits; Freshwater; Killifish; Neotropics.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000400010

First study of food webs in a large glacial river: the trophic role of invasive trout
Provedor de dados: 83
Autores: Tagliaferro,Marina; Kelly,Sean P.; Pascual,Miguel.
Abstract The aim of this study was to determine the food webs structure of a large Patagonian river in two river sections (Upstream and Midstream) and to evaluate isotopic overlap between native and introduced species. We used stable isotope analyses of δ15N and δ13C and stomach content. The Upstream section had a more complex food webs structure with a greater richness of macroinvertebrates and fish species than Midstream. Upstream basal resources were dominated by filamentous algae. Lake Trout were found to have a higher trophic position than all other fish species in that area although, the most abundant fish species, were Rainbow Trout. Depending on the life stage, Rainbow Trout shifted from prey to competitor/predator. In the Midstream section, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Food webs; Mixing models; Salmonids; Stable isotopes analysis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300210

Food resource partitioning among species of Astyanax (Characiformes: Characidae) in the Lower Iguaçu River and tributaries, Brazil
Provedor de dados: 83
Autores: Pini,Suelen F. R.; Abelha,Milza C. F.; Kashiwaqui,Elaine A. L.; Delariva,Rosilene L.; Makrakis,Sergio; Makrakis,Maristela C.
ABSTRACT Resource partitioning allows for interspecific coexistence and is frequently reported for similar species. Here, we predicted the existence of resource partitioning among species of Astyanax that co-occur in the Low Iguaçu River and tributaries in Brazil. A total of 848 stomachs of five species of Astyanax were analyzed. Algae, terrestrial plant and fruit/seed were the most consumed resources. Astyanax bifasciatus and A. dissimilis had predominantly herbivorous diets, A. gymnodontus and A. lacustris were omnivorous, and A. minor was mainly algivorous. Permutational analysis of variance showed the species had different diets, and similarity percentage analysis indicated that fruit/seed and terrestrial plant contributed the most to this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coexistence; Congeneric species; Diet; Diet overlap; Niche theory.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500203

Feeding and reproductive ecology of Cichla piquiti Kullander &amp;amp; Ferreira, 2006 within its native range, Lajeado reservoir, rio Tocantins basin
Provedor de dados: 83
Autores: Marto,Vanilcia Clementino de Oliveira; Akama,Alberto; Pelicice,Fernando Mayer.
Cichla piquiti is endemic to the Tocantins-Araguaia river basin, but information about its biology is restricted to populations introduced in other basins. In order to fill this gap, we investigated the feeding ecology and reproductive dynamics of C. piquiti in Lajeado reservoir, rio Tocantins. A total of 270 fish were collected between November 2010 and October 2011. The diet is rich and composed of at least 23 resources, predominantly fish (at least 19 species). We observed no clear influence of sex, periods and ontogeny on diet, which was basically composed of Characidae and Cichlidae. Considering its reproductive dynamics, immature, reproductive and non-reproductive fish were recorded during the whole study, and reproductive effort did not differ among...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Management; Population; Predator; Recruitment.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300625

Feeding habits of the cockfish, Callorhinchus callorynchus (Holocephali: Callorhinchidae) from off northern Argentina
Provedor de dados: 83
Autores: Roman,Jorge M.; Chierichetti,Melisa A.; Barbini,Santiago A.; Scenna,Lorena B.
ABSTRACT The feeding habits of Callorhinchus callorynchus were investigated in coastal waters off northern Argentina. The effect of body size, seasons and regions was evaluated on female diet composition using a multiple-hypothesis modelling approach. Callorhinchus callorynchus fed mainly on bivalves (55.61% PSIRI), followed by brachyuran crabs (10.62% PSIRI) and isopods (10.13% PSIRI). Callorhinchus callorynchus females showed changes in the diet composition with increasing body size and also between seasons and regions. Further, this species is able to consume larger bivalves as it grows. Trophic level was 3.15, characterizing it as a secondary consumer. We conclude that C. callorynchus showed a behavior of crushing hard prey, mainly on bivalves,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chondrichthyes; Diet; Ontogenetic shifts; Southwest Atlantic; Trophic level.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100202

Conservation status and bio-ecology of Brycon orbignyanus (Characiformes: Bryconidae), an endemic fish species from the Paraná River basin (Brazil) threatened with extinction
Provedor de dados: 83
Autores: Tonella,Lívia Helena; Dias,Rosa Maria; Vitorino Junior,Oscar Barroso; Fugi,Rosemara; Agostinho,Angelo Antonio.
ABSTRACT Brycon orbignyanus is an endemic species from La Plata basin whose stocks have been presenting significant reductions throughout the Paraná River. Brycon orbignyanus is categorized as an endangered species. This study evaluated aspects of the bio-ecology of this species that may be related to this threat, highlighting its distribution, abundance, and diet as well as the corresponding relationships between its recruitment and flood regimes. Data were obtained from different parts of the upper Paraná River (stretches free and regulated by dams) from 1986 to 2010 with more detailed data collected from the free remnant of this basin. The results indicate that no records for species exist at more than half of the sampling points located in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dam; Diet; Floodplain; Ontogeny; Recruitment.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000300207

Feeding ecology of Leporinus taeniofasciatus (Characiformes: Anostomidae) before and after installation of a hydroelectric plant in the upper rio Tocantins, Brazil
Provedor de dados: 83
Autores: Albrecht,Miriam P.; Pellegrini-Caramaschi,Erica.
The feeding ecology of Leporinus taeniofasciatus in the upper rio Tocantins was characterized before (river phase) and after (reservoir phase) its impoundment by the Serra da Mesa Hydroelectric Dam. The importance of each food item was given by the Alimentary Index (IAi), which combines the frequency of occurrence and volumetric methods. A significant difference in the diet of L. taeniofasciatus between seasons in the river phase, detected by a multivariate analysis of variance, was not kept when the reservoir was formed. Its feeding activity, verified through the percentage of stomachs with different degrees of fullness, was not affected by the impoundment. Leporinus taeniofasciatus was able to incorporate terrestrial food items to its diet when they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Neotropical; Reservoir.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100006

Spatial, seasonal and ontogenetic changes in food resource use by a piscivore fish in two Pantanal lagoons, Brazil
Provedor de dados: 83
Autores: Gimenes,Michele de Faveri; Fugi,Rosemara; Isaac,Andréia; Silva,Marlene Rodrigues da.
We evaluated the factors that affect the food resource use by Plagioscion ternetzi using three approaches: spatial, seasonal, and ontogenetic changes. Fish were sampled between March 2000 and February 2001 and March 2003 and February 2004 in the Sinhá Mariana and Chacororé lagoons, wetlands of the Pantanal Matogrossense. Fish was the predominant food in the diet, but shrimps and insects have been also consumed. The diet of P. ternetzi was significantly different between lagoons, but no difference was detected between dry and flood periods. In Sinhá Mariana lagoon, the diet mainly consisted of Psectrogaster curviventris, in both periods. In the flood period in Chacororé lagoon, fish was the dominant food (especially Astyanax spp., Leporinus spp. and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chacororé lagoon; Diet; Plagioscion ternetzi; Sciaenidae; Sinhá Mariana lagoon.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100163

Dietary habits of juveniles of the Mayan cichlid, Cichlasoma urophthalmus, in mangrove ponds of an offshore islet in Belize, Central America
Provedor de dados: 83
Autores: Vaslet,Amandine; France,Christine; Baldwin,Carole C.; Feller,Ilka C.
Foraging habitats of juveniles of the Mayan cichlid, Cichlasoma urophthalmus (Günther, 1862), were investigated in two mangrove ponds located in Twin Cays offshore islet in Belize: Sink Hole pond (SH) and Hidden Lake pond (HL). Sink Hole pond is a semiclosed body of water, whereas Hidden Lake pond is connected by a channel to adjacent seagrass beds that surround the islet. Gut contents of 21 juvenile C. urophthalmus (9.8-13.2 cm total length) were analyzed, and five prey taxa were identified. In both mangrove ponds, C. urophthalmus were opportunistic carnivores and consumed primarily crustaceans. Plant material and detritus present in gut contents were most likely ingested incidentally when the fish foraged on small invertebrates. Carbon isotopic values of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caribbean; Cichlidae; Diet; Seagrass beds; Stable isotopes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300021

Patterns of niche breadth and feeding overlap of the fish fauna in the seasonal Brazilian Pantanal, Cuiabá River basin
Provedor de dados: 83
Autores: Corrêa,Carlos Eduardo; Albrecht,Miriam Pilz; Hahn,Norma Segatti.
Spatial and temporal variations in patterns of niche breadth and feeding overlap were investigated for the fish fauna in the Pantanal region, aiming to determine the factors that account for species coexistence. Samples were conducted in the Cuiabá River and Chacororé pond, in the upper Pantanal region, Mato Grosso State, Brazil, during one hydrological cycle (March 2000 to February 2001), (designed spatial-seasonal units). Mean niche breadth values were overall low for the fish assemblage (0.2-0.3). Differences between periods were not statistically significant. Feeding overlap values ranged between 0 and 0.4, whereas the mean was always inferior to 0.05 in all spatial-temporal units, and differences between periods were not statistically significant. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coexistence; Diet; Fishes; Floodplain; Pantanal.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300017

Feeding habit of Eigenmannia trilineata Lopez &amp;amp; Castello, 1966 (Teleostei: Sternopygidae) of Parque Estadual de Itapuã, RS, Brazil
Provedor de dados: 83
Autores: Giora,Júlia; Fialho,Clarice B.; Dufech,Ana Paula S.
This study aims to describe the feeding habits of a population of the weakly electric fish Eigenmannia trilineata from Southern Brazil through the monthly frequency variation of replection (RI) and hepatosomatic (HSI) indexes, condition factor (CF) and dietary analysis of the species, besides the comparison of the results with abiotic factors. We collected 428 specimens from June/2002 to May/2003 with a dip net and electric fish detector. Stomach contents were analyzed using three measurements: frequency of occurrence of food items, percentage composition per prey type and feeding importance index. Microcrustacea and autochthonous insects were the dominant food items in the stomachs of E. trilineata. The adults (males larger than 63.5 mm and females larger...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gymnotiformes; Electric-fish; Diet; Southern Brazil.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200007

Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Provedor de dados: 83
Autores: Vitule,Jean R. S.; Braga,Marcelo R.; Aranha,José M. R.
Information related to the diet of one species always contributes to the knowledge of its bionomy and the functioning of the ecosystem in which the species lives. Therefore, understanding the feeding ecology of one fish population and its ontogenetic, spatial and temporal aspects help to understand the structure of fish assemblages and river communities. Knowledge of this structure is essential for habitat management and biodiversity conservation. The feeding ecology of Deuterodon langei Travassos, 1957 was studied through analyses of diet composition, sharing of resources, feeding strategy and contribution of food items to the width of its niche. The analysis included an assessment of ontogenetic, spatial and seasonal variations. The species was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Characins; Ontogeny; Niche; Atlantic Forest.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200008

Feeding habits and morphometry of Iheringichthys labrosus (Lütken, 1874) in the Uruguay River (Uruguay)
Provedor de dados: 83
Autores: Masdeu,Malvina; Mello,Franco Teixeira-de; Loureiro,Marcelo; Arim,Matias.
Body size and diet of organisms are fundamental attributes which determine their ecology and natural history. Iheringichthys labrosus is one of the most common fish species of the Uruguay River. However, its natural history is poorly known and there is little information about its diet and interactions with other species. This paper describes the feeding habits of this species, relating feeding patterns to the size classes and morphometry of individuals and to the temporal variations. Fishes were captured in May and November of 2006 in three zones of the lower Uruguay River. A total of 101 stomach contents was analyzed (standard length: 60-224 mm). The species exhibited a broad feeding spectrum with most items belonging to the benthic community. We found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Freshwater; Natural history; Pimelodidae; Siluriformes.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300019

Food resource partitioning in a fish community of the central Amazon floodplain
Provedor de dados: 83
Autores: Mérona,Bernard de; Rankin-de-Mérona,Judy.
Diets of most of fish species inhabiting a floodplain lake in central Amazonia were studied over a two years and half period. Based on the percentage of relative occurrence of 11 major food categories a classification of species in 11 feeding guilds is proposed. Many species were found to be specialized feeders. Fish, detritus and insects were the most important food resources supporting the fish community in both seasons, but the proportions of fruits, invertebrates and fish were reduced during the low water season. At the community level mean diet overlap between species was low, suggesting efficient resource partitioning within the community. However mean overlap between unspecialized feeders was high. Based on the 23 most abundant species belonging to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Varzea lake; Fishes; Diet; Overlap; Seasonal variability.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000200004

Food-resource partitioning among fish species from a first-order stream in northwestern Paraná, Brazil
Provedor de dados: 83
Autores: Silva,Jislaine Cristina da; Delariva,Rosilene Luciana; Bonato,Karine Orlandi.
This study addressed the feeding ecology of fish fauna from a first-order stream located in a rural area. The purposes were to evaluate the influence of interspecific, seasonal and spatial factors on the diet, examine the dietary overlap, and determine the predominant food sources. Sampling was conducted in December 2007, September 2008, and March 2009, in three 50-m stretches of Itiz stream (upstream, intermediate, and downstream), through electrofishing. A total of 1,102 stomach contents were analyzed from 14 species, by the volumetric method. In general, allochthonous resources were predominant in the diets. Astyanax aff. fasciatus, Astyanax aff. paranae, Astyanax bockmanni, and Bryconamericus aff. iheringi consumed a higher proportion of plant remains,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allochthonous resources; Diet; Fish fauna; Trophic segregation; Riparian vegetation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200014

Comparative dietary analysis of two populations of Mimagoniates rheocharis (Characidae: Glandulocaudinae) from two streams of Southern Brazil
Provedor de dados: 83
Autores: Dufech,Ana Paula S.; Azevedo,Marco A.; Fialho,Clarice B.
The diet of two populations of Mimagoniates rheocharis, from two freshwater streams of the rio Tramandaí, northeastern Rio Grande do Sul, Brazil, are described and compared. The specimens were collected monthly from January 1998 to March 1999, with dip nets and seine nets and preserved in 10% formalin. In laboratory, the standard length of each specimen was measured. The stomachs were removed and dissected for identification of the alimentary items. The data were analyzed using the frequency of occurrence, percent composition and index of alimentary importance methods, being the last two compared among different classes of standard length. Three methods of analysis showed the highest values for allochthonous insects, regardless the locality of collection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding; Allochthonous insects; Rio Maquiné; Diet; Neotropical.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000100008

Evaluación de estabilizadores en una leche  fermentada con adición de fibras insolubles
Provedor de dados: 20
Autores: Brito, A. I.; Perea, J.
El objetivo de este trabajo fue evaluar el efecto de diferentes estabilizadores sobre las principales características texturales de una leche fermentada hipocalórica con adición de salvado de trigo como fuente de fibra dietética insoluble. Se empleó una proporción de fibra de 5 g/100 g de producto, adicionándolo de conjunto con los estabilizadores a evaluar. Se realizó un diseño de experimentos con los dos estabilizadores a emplear a tres niveles para establecer el valor óptimo de empleo de los mismos, midiendo como variables respuestas: sedimentación de partículas, sinéresis, gelificación y consistencia del coágulo. Se concluyó que el almidón fosfato a 1,0 % y la gelatina a 0,5 % permitieron obtener las características texturales deseadas en la leche...
Tipo: Journal Contribution
Palavras-chave: Food; Research (experimental); Mathematical models; Stabilizers; Fermented milk; Diet.
Ano: 2008
URL: http://hdl.handle.net/1834/4885

Diet, microhabitat use, and thermal preferences of Ptychoglossus bicolor (Squamata: Gymnophthalmidae) in an organic coffee shade plantation in Colombia
Provedor de dados: 84
Autores: Anaya-Rojas,Jaime M.; Serrano-Cardozo,Víctor H.; Ramírez-Pinilla,Martha P.
Ptychoglossus bicolor is a small gymnophthalmid lizard distributed in the Magdalena Valley of Colombia. We studied ecological features of diet, microhabitat use, and thermal preferences of a population found in an organic coffee shade plantation at the Cordillera Oriental of the Colombian Andes. The studied population had a diet composed predominantly of isopods. The Relative Importance Index of isopods was 98.8%; there were no significant monthly differences in the full stomach content and volume of isopods eaten during the sampling year, neither between rainy and dry seasons. A large number of lizards were found active in the leaf-litter, buried around coffee tree roots, and under or in rotting logs. Lizard body temperature was positively correlated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ptychoglossus bicolor; Diet; Ecology; Tropical lizards; Organic coffee.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010001000001

Electivities and resource use by an assemblage of lizards endemic to the dunes of the São Francisco River, northeastern Brazil
Provedor de dados: 84
Autores: Rocha,Pedro L.B.; Rodrigues,Miguel T.
This study describes the pattern of resource use by one assemblage of lizards inhabiting a desert-like dune field in the Brazilian Caatinga. We evaluated food and microhabitat availability and phases of lizard activity, as well as use of, and electivities for, food and microhabitats. Six of the seven most abundant species are endemic to the dunes, and their diets under-represented arthropods possessing chemical defenses. The two fossorial gymnophthalmids were similar in presenting no electivities for microhabitat but differed in diet, electivities for food and phase of activity. The five species of epigeous lizards include one group presenting positive electivities for protected and shaded microhabitats (Procellosaurinus erythrocercus, Briba brasiliana,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caatinga; Diet; Dunes; Electivity; Microhabitat; Phase of activity; Lizards.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005002200001

DIET OF DENDROPSOPHUS MICROCEPHALUS AND SCARTHYLA VIGILANS (ANURA: HYLIDAE) AT A LOCALITY IN NORTH-WESTERN VENEZUELA WITH NOTES ON MICROHABITAT OCCUPATION
Provedor de dados: 84
Autores: FONSECA-PÉREZ,KIMBERLYN A.; MOLINA,CÉSAR; TÁRANO,ZAIDA.
ABSTRACT The coexistence of species with similar ecological requirements (food, space, time) has typically drawn attention of researchers because competition for resources is expected to be high. The diet and microhabitat occupation of two morphologically and ecologically similar species of Hylidae (Anura), Dendropsophus microcephalus and Scarthyla vigilans, were analyzed at a locality in north-western Venezuela, with the aim of addressing the potential for space and food competition between them. Diet was estimated through the analysis of stomach contents and microhabitat occupation was estimated through recordings of perch type, height and horizontal distance to water. Thirty-six prey categories (32 families, 4 orders) of arthropods were identified: 30...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Generalist; Niche overlap; Resource partitioning; Microhabitat; Morphometry.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017000700093

Ecology of a snake assemblage in the Atlantic Forest of southeastern Brazil
Provedor de dados: 84
Autores: Hartmann,Paulo A.; Hartmann,Marília T.; Martins,Marcio.
The main objective of this study was to examine the natural history and the ecology of the species that constitute a snake assemblage in the Atlantic Rainforest, at Núcleo Picinguaba, Parque Estadual da Serra do Mar, located on the northern coast of the state of São Paulo, southeastern Brazil. The main aspects studied were: richness, relative abundance, daily and seasonal activity, and substrate use. We also provide additional information on natural history of the snakes. A total of 282 snakes, distributed over 24 species, belonging to 16 genera and four families, has been found within the area of the Núcleo Picinguaba. Species sampled more frequently were Bothrops jararaca and B. jararacussu. The methods that yielded the best results were time constrained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Assemblage; Snake; Diet; Habitat use; Activity.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009002700001

Natural History of Pseudoboine Snakes
Provedor de dados: 84
Autores: Gaiarsa,Marília P.; Alencar,Laura R.V. de; Martins,Marcio.
Even though natural history information is crucial for answering key ecological, evolutionary, and conservation questions, basic studies are still lacking for Neotropical snakes. This study aims at contributing to the knowledge of the Neotropical tribe Pseudoboini, based on literature data, analysis of museum specimens and unpublished data. The tribe is mainly composed of moderate-sized snakes, although small and large-sized snakes also occur in the clade. Mean fecundity ranged from two (Rodriguesophis iglesiasi) to 29 eggs (Clelia plumbea) and the species are predominantly terrestrial and nocturnal. Most species are diet specialists and lizards are the most commonly consumed prey (found in the diet of 29 species), followed by small mammals (consumed by 20...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Diet; Microhabitat; Reproduction; Dipsadidae.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013001900001

Growth, yield, water and effluent quality in ponds with different management during tambaqui juvenile production
Provedor de dados: 86
Autores: Silva,Ana Maria Dias da; Gomes,Levy de Carvalho; Roubach,Rodrigo.
The objective of this work was to evaluate the effect of pond management on fish feed, growth, yield, survival, and water and effluent quality, during tambaqui (Colossoma macropomum) juvenile production. Fish were distributed in nine 600 m² earthen ponds, at a density of 8 fish per m²; the rearing period was 60 days. Three different pond management were applied: limed and fertilized (LimFer), limed (Lim), and natural (Nat). Fish were fed with a commercial ration containing 34% crude protein three times daily. There were no significant differences in fish growth or yield. Three main items found in tambaqui stomach were insect, zooplankton and ration, without a significant difference among treatments in proportion. Alkalinity, hardness, and CO2 were greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colossoma macropomum; Growth; Yield; Diet; Environmental impact.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000500017

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective--Making Healthy Food Choices Easier:  Ideas From Behavioral Economics
Provedor de dados: 31
Autores: Mancino,   Lisa; Andrews,   Margaret S.
With obesity the most prevalent nutrition problem facing Americans at all economic levels, promoting diets that provide adequate nutrition without too many calories has become an important objective for the Food Stamp Program. Findings from behavioral economics suggest innovative, low-cost ways to improve the diet quality of food stamp participants without restricting their freedom of choice. Unlike more traditional economic interventions, such as changing prices or banning specific foods, the strategies explored in this brief can be targeted to those participants who want help making more healthful food choices.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59436

Behavioral Economics: A New Heavy weight in Washington?
Provedor de dados: 31
Autores: Cash,   Sean B.; Schroeter,   Christiane.
Honorable Mention, Outstanding Choices Article Award, 2011
Tipo: Journal Article
Palavras-chave: Obesity; Diet; Nutrition; Behavioral economics; Food policy; Health promotion; Consumer/Household Economics; I12; I18; C9.
Ano: 2010
URL: http://purl.umn.edu/95755

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective-Food Spending Patterns of Low-Income Households:  Will Increasing Purchasing Power Result in Healthier Food Choices?
Provedor de dados: 31
Autores: Frazao,   Elizabeth; Andrews,   Margaret S.; Smallwood,   David M.; Prell,   Mark A.
The Food Stamp Program provides benefits that low-income households can use to purchase food in grocery stores. The rise in obesity has raised the question of whether food stamp participants would purchase more healthy foods, such as fruits and vegetables, if food stamp benefits were higher. This report examines household food spending patterns and how they differ across income levels to provide insight into how participants might change their food spending in response to additional income.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59430

America's Eating Habits: Changes and Consequences
Provedor de dados: 31
Individual chapters in this book provide different perspectives on the nutrition problems in the United States: what are the economic costs associated with unhealthy eating patterns; how do dietary patterns compare with dietary recommendations; how do national income and prices, advertising, health claims, and trends in eating away from home affect nutrient intake; how much do people know about nutrition and how does nutrition knowledge and attitudes affect intake of fats and cholesterol; how do different government programs and regulations influence food expenditures and consumption; what are some public and private efforts to improve healthy eating; and what are potential impacts of healthier eating on domestic agriculture.
Tipo: Report
Palavras-chave: Diet; Nutrition; Health; Eating patterns; Nutrition education; Nutrition knowledge; Dietary guidelines; Food guide pyramid; Food supply; Food consumption; Food assistance programs; School lunch; Food away from home; Advertising; Health claims; Nutrition labeling; Agriculture; Economic costs; Healthy Eating Index; Healthy People 2000; Food Consumption/Nutrition/Food Safety.
Ano: 1999
URL: http://purl.umn.edu/33604

A structural model of wealth, obesity and health in the UK
Provedor de dados: 31
Autores: Mazzocchi,   Mario; Traill,   W. Bruce.
Based on a household health production framework, this paper exploits the combination of socioeconomic, health and nutrition information from the UK National Diet and Nutrition Survey to analyze the endogenous relationship among wealth, nutrition, weight and the final health outcomes. Results show that higher wealth determines lower weight and better health as expected, but through a better diet rather than extra exercise or lower calorie consumption.
Tipo: Conference Paper or Presentation
Palavras-chave: Structural Equation Modelling; Body Mass Index; Diet; Blood Pressure; Income; Food Consumption/Nutrition/Food Safety.
Ano: 2008
URL: http://purl.umn.edu/43968

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective-Stretching the Food Stamp Dollar:  Regional Price Differences Affect Affordability of Food
Provedor de dados: 31
Autores: Leibtag,   Ephraim S.
Significant regional differences in food prices affect how far food stamp benefits can go toward enhancing the diet of low-income consumers in a given region. In regions where average food prices exceed the national average, food stamp benefits may not provide the same level of coverage as the same benefit would in below-average-price regions. This report measures average prices paid across U.S. regions. Results show that a household made up of a family of four in the East or West could spend $32-$48 more per month for a similar amount of food than the average U.S. household, whereas a household in the South and Midwest could spend $12-28 less per month than the average U.S. household.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59428

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspectives--Overview:  Can Food Stamps Do More To Improve Food Choices?
Provedor de dados: 31
Autores: Guthrie,   Joanne F.; Lin,   Biing-Hwan; Ver Ploeg,   Michele; Frazao,   Elizabeth.
The increased food purchasing power offered by the Food Stamp Program can promote food security and improve the overall economic well-being of low-income households. Now, as Americans struggle with obesity and other diet-related health problems, there is interest in whether the program can be more effective in encouraging participants to make healthy food choices. ERS has compiled economic research to provide decisionmakers with information on the likely effects of various proposed strategies for improving the food choices of food stamp program participants. This overview summarizes the findings, which are presented in more detail in a series of individual briefs.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59422

Relating diet, demographics and lifestyle to increasing US obesity rates
Provedor de dados: 31
Autores: Schroeter,   Christiane.
Changes in the American lifestyle are putting more individuals at risk due to the declining quality of their diets. In the last 20 years, the readily available high-fat foods (e.g., "fast foods") combined with the decreased caloric requirements due to lower physical activity levels is assumed to be the major factor in the sharp rise in the prevalence of obesity. The typical away-from-home meal is less healthy than food at home, since it tends to contain more total fat and saturated fat, less calcium, fiber, and iron, and fewer servings of fruits and vegetables. Furthermore, due to the super-sizing trend that is sweeping the market, when Americans eat out, they eat more. Thus, a rising away-from-home consumption appears to establish a significant barrier to...
Tipo: Journal Article
Palavras-chave: Obesity; Food source; Fast food; Diet; Lifestyle; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/97501

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective--How Can We Tell If We Are Making a Difference?  ERS Efforts To Improve Evaluation of Nutrition Outcomes
Provedor de dados: 31
Autores: Frazao,   Elizabeth; Guthrie,   Joanne F.; Smallwood,   David M.
Currently, the effects of the Food Stamp Program on the food choices and diet quality of participants are the subject of much debate. Improved evaluation of the nutrition and health effects of the program would be of use to program and policy officials, but most of the existing research is limited by three key factors: the difficulty in separating the effect of the program itself from other factors that may be related to program participation (that is, selection bias); relative age of the data (which do not capture current programs or population behaviors); and use of outdated dietary standards and assessment methods. This brief describes current ERS activities to address these problems and improve evaluation.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59439

Implementing a Simplified Method for Predicting Dietary Adequacy in Mozambique: A User's Manual
Provedor de dados: 31
Autores: Rose,   Donald.
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Food consumption; Diet; Food Security and Poverty; Q18.
Ano: 2000
URL: http://purl.umn.edu/56036

SOURCES AND UTILIZATION OF FOODSTUFFS IN BELARUSIAN HOUSEHOLDS: RESULTS OF THE GRODNO HOUSEHOLDS SURVEY
Provedor de dados: 31
Autores: Schmitz,   Susanne; Brosig,   Stephan; Degtiarevich,   Josif J.; Degtiarevich,   Irina J.; Grings,   Michael.
The paper is a documentation of a (non-representative) survey on the food situation of households in the Grodno region, Belarus. It covers the year between September 2000 and August 2001. The focus of the survey was on the sources of food in the households (purchase, own production, and receipt in non-monetary transactions between households) and on the utilization (consumption, feed use, sale, unpaid transfers to other households, and spoilage). The paper describes the survey design and the scope and quality of the compiled data set and it presents results of descriptive analyses. The survey households consume a well balanced diet based on potatoes and vegetables as the main staple food. 75 percent of the households use small land plots for food...
Tipo: Working or Discussion Paper
Palavras-chave: Belarus; Grodno; Foodstuffs; Food; Nutrition; Diet; Household survey; Weissrussland; Belarus; Grodno; Ernährung; Nahrungsmittel; Haushaltsbefragung; Community/Rural/Urban Development; Consumer/Household Economics; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Land Economics/Use; R20; I30.
Ano: 2006
URL: http://purl.umn.edu/92018

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective--Higher Cost of Food in Some Areas May Affect Food Stamp Households' Ability To Make Healthy Food Choices
Provedor de dados: 31
Autores: Nord,   Mark; Hopwood,   Heather.
The cost of “enough food,” estimated from the amount that low- and medium-income households in a geographic area report needing to spend to just meet their food needs, differs substantially across States and among metropolitan areas. In areas with high food costs, many food-stamp recipients are likely to have inadequate food resources to support healthy food choices.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59429

Food Environment, Food Store Access, Consumer Behavior, and Diet
Provedor de dados: 31
Autores: Ver Ploeg,   Michele.
Tipo: Journal Article
Palavras-chave: Food Environment; Food Deserts; Obesity; Consumer Behavior; Diet; Food Consumption/Nutrition/Food Safety; I18; R50.
Ano: 2010
URL: http://purl.umn.edu/95748

Can Food Stamps Do More to Improve Food Choices? An Economic Perspective
Provedor de dados: 31
Autores: Guthrie,   Joanne F.; Andrews,   Margaret S.; Frazao,   Elizabeth; Leibtag,   Ephraim S.; Lin,   Biing-Hwan; Mancino,   Lisa; Nord,   Mark; Prell,   Mark A.; Smallwood,   David M.; Variyam,   Jayachandran N.; Ver Ploeg,   Michele.
Food stamp recipients, like other Americans, struggle with nutrition problems associated with choice of foods, as well as amounts. This series of Economic Information Bulletins compiles evidence to help answer the question of whether the Food Stamp Program can do more to improve the food choices of participants. It examines the role of affordability and price of healthful foods in influencing food choices and the likely success of any policy targeted at changing food choices through food stamp bonuses or restrictions. It also examines other approaches to changing food choices, including nutrition education and potential strategies drawn from behavioral economics literature. Meaningful improvements in the diets of food stamp recipients will likely depend on...
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59417

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective-Nutrition Information:  Can It Improve the Diets of Low-Income Households?
Provedor de dados: 31
Autores: Guthrie,   Joanne F.; Variyam,   Jayachandran N.
The Food Stamp Nutrition Education (FSNE) component of the Food Stamp Program is intended to improve the food choices, diet quality, and health of program participants. This brief discusses the FSNE program, how it operates, and how it has grown over time. The brief also considers the challenges of nutrition education in general and discusses the research and evaluation needs suggested by the findings.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59434

Farm Policies and Added Sugars in US Diets
Provedor de dados: 31
Autores: Beghin,   John C.; Jensen,   Helen H.
Major changes in the use of US sweeteners have occurred since 1970, in both the amount and composition. Increased consumption of caloric sweeteners, especially in beverages, has been linked to excess energy intake and lower-quality diets. We examine how US farm policies (specifically agricultural research and development [R&amp;D] expenditures and commodity programs) have affected the consumption and composition of sweeteners in the US diet. R&amp;D expenditures have lowered the unit cost of most commodities and increased their use in food production, ceteris paribus, although corn has benefited more than sugar crops in the technical progress. Commodity programs have raised the price of sugar and decreased the price of corn; high fructose corn syrup (HFCS)...
Tipo: Working or Discussion Paper
Palavras-chave: Added sugar; Agricultural policy; Caloric; Corn; Diet; Farm policies; HFCS; Subsidy; Sugar; Sweetener; Agribusiness; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Production Economics.
Ano: 2008
URL: http://purl.umn.edu/6308

Poverty and health behaviour: Comparing socioeconomic status and a combined poverty indicator as a determinant of health behaviour
Provedor de dados: 31
Autores: Aue,   Katja; Roosen,   Jutta.
Studies in the area of health economics and public health have shown that low socioeconomic status (SES) and poverty are related to lower levels of health. Attempts to explain these differences have often made reference to the observation that poor health behaviours cluster in low SES respectively poverty groups. However, relatively little attention has been paid to the defining concept of SES and its appropriate measurement. Therefore data from the German Socio-Economic Panel are used to analyse the relationship between two multidimensional measurements to describe a) poverty respectively b) a low SES and health behaviour, including dietary behaviour, weight status and health behaviour in general. This study shows that both multidimensional indicators...
Tipo: Conference Paper or Presentation
Palavras-chave: Poverty; Social inequality; Diet; BMI; Health behaviour; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; I1; I3.
Ano: 2010
URL: http://purl.umn.edu/116401

Can Food Stamps Do More to Improve Food Choices?  An Economic Perspective-How Do Low-Income Households Respond to Food Prices
Provedor de dados: 31
Autores: Lin,   Biing-Hwan; Guthrie,   Joanne F.
This brief examines how consumers respond to food prices and how consumers’ response to price influences their purchases of particular foods, using examples drawn from previous ERS research. Implications of the findings for the use of price interventions to improve food choices are considered.
Tipo: Report
Palavras-chave: Food Stamp Program; Food consumption; Food prices; Food expenditures; Nutrition education; Behavioral economics; Food choices; Diet; Health; Fruits and vegetables; Food Assistance and Nutrition Research Program; FANRP; ERS; USDA; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Institutional and Behavioral Economics.
Ano: 2007
URL: http://purl.umn.edu/59432

Effects of Impulsivity and Self-control on Calorie Intake
Provedor de dados: 31
Autores: Asirvatham,   Jebaraj; McNamara,   Paul E.
Neoclassical economic theory models individuals as making consistent choices over time and it assumes these choices are the outcome of rational utility maximization. Recent theoretical developments in the theory of consumer decision-making have drawn evidence from other disciplines such as, neuroscience (McClure et al, 2004) and psychology, and proposed more generalized models in a dual-self framework explicitly accounting for self-control or impulsivity (Gul and Pesendorfer, 2004; Fudenberg and Levine, 2006; and Brocas and Carillo, 2008). This study attempts to understand the dietary choices in a dual-self framework while explicitly identifying calorie intake owing to impulsivity and self-control. We construct standard psychological measures using the...
Tipo: Conference Paper or Presentation
Palavras-chave: Self-control; Nutrition; Diet; Health; Impulsivity; BMI; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; D12; D03; I00.
Ano: 2009
URL: http://purl.umn.edu/49472

Did Implementing Nutrition Labeling and Education Act (NLEA) of 1990 Improve Diet?
Provedor de dados: 31
Autores: Asirvatham,   Jebaraj; McNamara,   Paul E.; Baylis,   Katherine R.
Nutrition labeling, in the words of the then FDA commissioner, David Kessler, was to “help millions of Americans make more informed, healthier choices.” Although the NLEA primarily focused on standardizing the nutrition facts label, its implementation also involved an informational and educational campaign on how to use the new nutrition facts label and the benefits of using it. Evidently label use more than doubled between 1989-91 and 1994-96. Most of the studies provide evidence of the effects of nutrition label use by comparing label users against non-users using data after NLEA was in effect. Using pseudo-panel data method, we find that implementing NLEA did not improve diet quality but use of labels did. Further, label usage showed no improvement in...
Tipo: Conference Paper or Presentation
Palavras-chave: Nutrition; Diet; Nutrition facts label; Food Consumption/Nutrition/Food Safety.
Ano: 2010
URL: http://purl.umn.edu/61660

High value products, supermarkets and vertical arrangements in Indonesia
Provedor de dados: 31
Autores: Chowdhury,   Shyamal K.; Gulati,   Ashok; Gumbira-Said,   E.
Indonesian economy has experienced some major changes during the last three decades and transformed from a predominantly agricultural economy to one that relies more heavily on its non-agricultural sector. Within agriculture, there has also been a change in the contribution of different sub sectors and high value products have grown relatively rapidly making agriculture more diversified. Similar to the changes in agricultural production, food consumption in Indonesia has shown a pattern of change over the past three decades, from a diet characterized primarily by the staple foods of cereals and cassava, to one that includes a larger share of fruits, fish, meats, dairy products and processed foods. Alongside the change in composition of food demand, newer...
Tipo: Working or Discussion Paper
Palavras-chave: Diet; High value agricultural products; Supermarkets; Agribusiness.
Ano: 2005
URL: http://purl.umn.edu/59822

Effects of the Replacement of Soybean Meal with Pea as Dietary Protein Source on the Serum Protein Fractions of Broilers
Provedor de dados: 89
Autores: Bingol,NT; Dede,S; Karsli,MA; Değer,Y; Kılınç,Kılınç D; Kiliçalp,S.
ABSTRACT The aim of this study was to determine the effects of the replacement of different levels of protein derived from soybean meal with that from peas in broiler diets on serum protein fractions. A corn-soybean meal basal diet was formulated as the control diet (Control=C) (NRC, 1994), and then pea was added to the control diet to replace 20% (P20) or 40% (P40) of the crude protein of the control diet. The diets were randomly fed to 12 pens per treatment, each housing five birds, for 42 days. Blood samples were collected from 36 birds (3 birds x 4 pens x3 treatments) and the serum protein fractions were separated. Gamma-globulin percentage was higher in group P20 compared with C and P40 groups. Total protein, beta-globulin, and gamma-globulin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Diet; Peas; Serum protein fractions.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400639

Effect of oils sources on blood lipid parameters of commercial laying hens
Provedor de dados: 89
Autores: Murata,LS; Ariki,J; Machado,CR; Silva,L da PG da; Rezende,MJM.
The experiment was carried out to verify if total cholesterol, HDL-cholesterol and triacylglicerol plasma levels are affected when laying hens are fed rations containing different dietary oil sources. One hundred sixty 50 week-old hens, assigned to four treatments with five replicates using 8 hens per replicate were used. The experimental period was of 84 days divided in 3 cycles of 28 days each. In the last day of each cycle, blood samples of 2 hens per replicate were randomly choose and blood samples were collected. On the other hand, blood was also collected at 7 am, 11 am and 3 pm aiming to study the daily changes of these lipids. Blood lipid parameters were not affected by different dietary oil sources (p &gt; 0.05); however, HDL-cholesterol did...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood lipids; Diet; Laying hens; Oil source.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000300008

Can larval lacewings Chrysoperla externa (Hagen): (Neuroptera, Chrysopidae) be reared on pollen?
Provedor de dados: 92
Autores: Oliveira,Simone Alves de; Souza,Brígida; Auad,Alexander Machado; Carvalho,Caio Antunes.
The aim of this study was to verify the viability of exclusive use of elephant grass pollen, Pennisetum purpureum (Schum), to feed larvae of the lacewing Chrysoperla externa (Hagen, 1861). The insects were kept at 24ºC and the duration and survival rate of each instar and the larval and pupal phases were recorded. The diet provided complete development of the larvae. The average duration of the first and second instars was the same (6.9 days), while the third instar lasted an average of 10.0 days and the pupal phase 13.2 days. The average survival of the larvae was above 80% for the first, second and third instars, and 70.0% and 33.3% for the larval and pupal phase, respectively. These results indicate that the exclusive use of elephant grass pollen can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Green lacewing; Mass rearing.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000400024

Autoecology of Dryadosaura nordestina (Squamata: Gymnophthalmidae) from Atlantic forest fragments in Northeastern Brazil
Provedor de dados: 103
Autores: Garda,Adrian A.; Medeiros,Pedro H.S. de; Lion,Marília B.; Brito,Marcos R.M. de; Vieira,Gustavo H.C.; Mesquita,Daniel O.
Life history parameters such as diet, reproduction, and sexual dimorphism are crucial to understand ecological and evolutionary forces shaping species traits. Nevertheless, such information is scant in the literature for most Neotropical squamates. Gymnophthalmidae contains over 242 species in 46 genera and includes small-size, mostly terrestrial species, although psamophilic, semi-aquatic, and low vegetation dwellers also occur. Dryadosaura is a monospecific genus - Dryadosaura nordestina Rodrigues et al., 2005 - , occurring in Atlantic Forest areas from Rio Grande do Norte to Northern Bahia, and little is known about its ecology and natural history. We analyzed the species' diet, reproduction, and sexual dimorphism based on 170 specimens deposited in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Ecology; Lizard; Reproduction; Sexual dimorphism.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500002

Is it possible to identify four small Neotropical felids (Carnivora: Felidae) based on hair microstructure?
Provedor de dados: 103
Autores: Rinaldi,Alcides Ricieri; Rodriguez,Flávia Heloisa; Passos,Fernando C.
The microscopic characters of the hair can be used to indirectly identify species that are either uncommon or are difficult to see, for instance small Neotropical felids of the southern Brazilian Atlantic Forests. This widely used technique, which has not yet been standardized, involves the identification of hairs collected from feces. We tested the hypothesis that this tool is effective to identify four species of small Neotropical felids: Leopardus guttulus, Puma yagouaroundi, L. wiedii and L. pardalis. To accomplish that, we used measurements of the length, width and area of the cuticular scales in the guard hairs and calculated the relationship between width and length (quotient) for each species. A multiple discriminant analysis was conducted on the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Diet; Leopardus guttulus; Leopardus wiedii; Leopardus pardalis; Puma yagouaroundi.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000100077

Observations on food preference of Neotropical land planarians (Platyhelminthes), with emphasis on Obama anthropophila , and their phylogenetic diversification
Provedor de dados: 103
Autores: Cseh,Amanda; Carbayo,Fernando; Froehlich,Eudóxia Maria.
ABSTRACT: The food preference of Obama anthropophila Amaral, Leal-Zanchet &amp; Carbayo, 2015, a species that seems to be spreading across Brazil&amp;#8217;s human-modified environments, was investigated. Extensive experiments led to the conclusion that the generalized diet of this species may have facilitated its dispersal. The analysis of 132 feeding records of 44 geoplaninid species revealed a tendency for closely related species to feed on individuals from similar taxonomic groups, suggesting that in this group behavioral evolution is more conserved than phylogenetic diversification.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Flatworm; Geoplaninae; Predation; Soil fauna.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100302

Natural history of Micrablepharus maximiliani (Squamata: Gymnophthalmidae) in a Cerrado region of northeastern Brazil
Provedor de dados: 103
Autores: Dal Vechio,Francisco; Recoder,Renato; Zaher,Hussam; Rodrigues,Miguel Trefaut.
Micrablepharus maximiliani (Reinhardt &amp;amp; Luetken, 1861) is a microteiid lizard widely distributed in the open areas of South America. Little is known about its ecology and reproductive biology. Here, we analyzed aspects of the natural history of a population of M. maximiliani from a Cerrado area in the state of Piauí, northeastern Brazil. Our results suggest that the reproductive activity of M. maximiliani might be seasonal in the Cerrado, since reproductive females were observed only in the dry season, whereas reproductive males were present in both seasons. Vitellogenic follicles and oviductal eggs were found simultaneously in one female, suggesting that females may produce more than one clutch per season. Sexual dimorphism was observed in body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Ecology; Lizards; Reproduction; Sexual dimorphism.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200002

Use of food resources by small fish species in Neotropical rivers: responses to spatial and temporal variations
Provedor de dados: 103
Autores: Silva,Jislaine Cristina da; Gubiani,Éder André; Delariva,Rosilene Luciana.
Spatial and temporal variations in food supply play a crucial role in the determination of the patterns of food use by fish species. This study evaluated spatial and temporal variations in food utilization by small fish species of the Verde River, Upper Paraná River Basin, state of Mato Grosso do Sul, Brazil. Samplings were conducted in the rainy and dry periods, from November 2010 to August 2012, using trawls, cast nets and gillnets, in nine sampling sites grouped into three biotopes: upstream and downstream of the Branca Waterfall, and tributary. The stomach contents of 3,263 individuals of 12 small species were examined according to the volumetric method. Altogether, 31 food items were identified. Overall seed consumption was greater in the rainy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allochthonous resources; Diet; Fish fauna; Seasonality; Upper Paraná River Basin.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500004

Ecology of Ischnocnema parva (Anura: Brachycephalidae) at the Atlantic Rainforest of Serra da Concórdia, state of Rio de Janeiro, Brazil
Provedor de dados: 103
Autores: Martins,Ana Cristina J. S.; Kiefer,Mara C.; Siqueira,Carla C.; Van Sluys,Monique; Menezes,Vanderlaine A.; Rocha,Carlos Frederico D.
Ischnocnema (Brachycephalidae) includes many species that are important members of the leaf litter frog communities in the Atlantic Rainforest of Brazil. Ischnocnema parva (Girard, 1853) is endemic to the Atlantic Rainforest biome and is restricted to the forests of southeastern Brazil. Currently, the available information about the ecology of I. parva is scarce. We studied the diet, the habitat use, reproduction and density of I. parva in an area of Atlantic Rainforest at the Concórdia mountain range, Rio de Janeiro. Individuals of I. parva were captured in April 2005 using different sampling methods: time constrained search (transects), plots of 5 x 5 m (25 m²) on the litter, and pitfall traps with drift fences. We found 240 frogs; 35 females and 205...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activity; Density; Diet; Habitat use; Reproduction.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200007

Isotopic signatures (δ 13C and δ15N) of muscle, carapace and claw in Phrynops geoffroanus (Testudines: Chelidae)
Provedor de dados: 103
Autores: Marques,Thiago S.; Tassoni-Filho,Maurício; Ferronato,Bruno O.; Guardia,Isabela; Verdade,Luciano M.; Camargo,Plínio B. de.
The isotopic composition ( δ13C and δ 15N) of muscle, carapace and claw was determined from six wild individuals of Phrynops geoffroanus (Schweigger, 1812) in order to verify the variation between those tissues. The mean values of δ13C e δ 15N were, respectively, -19.48 ± 0.81‰ (-20.8 - -18.64‰) and 7.23 ± 0.67‰ (6.49 - 8.3‰) for muscle, -16.52 ± 0.98‰ (-17.88 - -15.43‰) and 7.29 ± 0.54‰ (6.74 - 7.97‰) for carapace and -18.57 ± 0.97‰ (-19.97 - -17.26‰) and 4.36 ± 0.33‰ (3.93 - 4.79‰) for claw. We found a significant difference for the tissues evaluated for both δ13C and δ15N. Muscle and claw were statistically similar and more depleted in 13C than the carapace. Nonetheless, claw was more depleted in 15N than muscle and carapace tissues. These results are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Freshwater turtles; Geoffroy's side-necked-turtle; Metabolic processes; Stable isotope.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000300016

Seasonal and spatial differences in feeding habits of the Neotropical otter Lontra longicaudis (Carnivora: Mustelidae) in a coastal catchment of southeastern Brazil
Provedor de dados: 103
Autores: Rheingantz,Marcelo L; Waldemarin,Helen F; Rodrigues,Lívia; Moulton,Timothy P.
The diet of the Neotropical otter Lontra longicaudis (Olfers, 1818) is one of the best known aspects of its biology throughout its distribution range. However, most dietary studies have been undertaken during short time periods, making it difficult to identify temporal patterns in the feeding behavior of the species. The present study aimed to describe the diet of L. longicaudis in the lower region of the Mambucaba Catchment, state of Rio de Janeiro, Brazil, during a three year period, based on analyses of spraints (feces). The results show fish as the main prey item (frequency of occurrence, FO = 85.78%), as already described in previous studies. Crustaceans were the second main prey (FO = 70.67%), occurring in the spraints during the whole year, however...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Diet; Feeding ecology; Lutrinae; Southeastern Brazil; Spraint analysis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100006

Feeding habits, microhabitat use, and daily activity of Cycloramphus brasiliensis (Anura: Cycloramphidae) from the Atlantic Rainforest, Brazil
Provedor de dados: 103
Autores: Maia-Carneiro,Thiago; Dorigo,Thiago A.; Almeida-Gomes,Mauricio; Van Sluys,Monique; Rocha,Carlos F.D.
We analyzed the feeding habits, microhabitat use, and daily activity period of the anuran species Cycloramphus brasiliensis (Steindachner, 1864), endemic to the Atlantic Rainforest biome. The only previous studies on this species focused on the systematics and new altitudinal records. This study was conducted in a large forest remnant located in the municipalities of Guapimirim and Cachoeiras de Macacu. We captured frogs through visual encounter surveys and recorded the frequency of microhabitat types used by them, and the time of capture. Diet was analyzed in terms of number, volume and frequency of occurrence of items. Individuals of C. brasiliensis occurred in association with fast-moving rocky portions of clear freshwater rivers, indicating a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activity period; Conservation; Diet; Rheophilic habit; Threatened amphibians.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000300007

Size-selective predation of the catfish Pimelodus pintado (Siluriformes: Pimelodidae) on the golden mussel Limnoperna fortunei (Bivalvia: Mytilidae)
Provedor de dados: 103
Autores: Vieira,João P.; Lopes,Michelle N.
This paper describes the size-selective predation on Limnoperna fortunei (Dunker, 1857) by Pimelodus pintado (Azpelicueta, Lundberg &amp;amp; Loureiro, 2008) from the time it arrived at the Mirim Lagoon basin (2005). Sampling was carried out using bottom trawl in depths of 3-6 m, from January to November 2005, and from October to November 2008. Pimelodus pintado began to prey upon L. fortunei soon after its arrival (austral spring of 2005). On the spring of 2008, L. fortunei was found to be the most important food item of P. pintado. The variation in length of the mussels (0.7-3.2 cm, with a mode of 1.3 cm) indicates that the species is now fully established in the system. Our data indicates that large individuals of P. pintado incorporate more mussels in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Freshwater invasion; Opportunistic predator; Mirim Lagoon.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000100005

Trophic ecology and microhabitat utilization by the Bufo gargarizans, Rana guentheri, and Rana limnocharis in southwestern China
Provedor de dados: 103
Autores: Yu,Tonglei; Guo,Yanshu.
We studied the trophic ecology and microhabitat use of the Asiatic toad, Bufo gargarizans Cantor, 1842; Guentheri frog, Rana guentheri (Boulenger, 1882); and the Ricefield frog, Rana limnocharis (Boie, 1834). These three species are common around Nanchong City, in southwestern China, where they live in the same habitat before hibernation. The main objective of this study was to analyze the diets and patterns of coexistence relative to the microhabitat of each species. In the Asiatic toad, based on index of relative importance, the diet was dominated by adult Coleoptera, Isopoda, and Hymenoptera (29.53%, 22.07%, and 15.20%, respectively), while the Guenther's frog and Ricefield frog ingested predominantly Orthoptera (67.44% and 40.94%, respectively). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anuran; Asiatic toad; Diet; Guentheri frog; Habitat; Resource partitioning; Ricefield frog.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000100006

Living in a caatinga-rocky field transitional habitat: ecological aspects of the whiptail lizard Cnemidophorus ocellifer (Teiidae) in northeastern Brazil
Provedor de dados: 103
Autores: Menezes,Vanderlaine A; Sluys,Monique Van; Fontes,Angélica F; Rocha,Carlos F. D.
The ecology of the active forager lizard Cnemidophorus ocellifer (Spix, 1825) was studied to analyze food habits, thermal ecology and habitat use, in the Morro do Chapéu municipality (11º29'S, 41º07'W), state of Bahia, Brazil. Lizards (N = 34) were collected with rubber bands or with an air rifle and, for each individual, we recorded cloacal temperature (Tc), air temperature (Ta) (1 cm above the substrate) and substrate temperature (Ts) (to nearest 0.2ºC). We registered the microhabitat used by each animal at the moment of first sight and measured its morphological variables (nearest 0.1 mm). In the laboratory, we registered the number of items of each prey category to the taxonomic level of Order, its dimensions and frequencies. Data showed that,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bahia; Cnemidophorus; Diet; Microhabitat; Thermal ecology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100002

Selective consumption of rodents by the Variable hawk Geranoaetus polyosoma (Accipitriformes: Accipitridae) in the Atacama Desert, northern Chile
Provedor de dados: 103
Autores: Muñoz-Pedreros,Andrés; Norambuena,Heraldo V.; Gil,Claudia; Rau,Jaime.
ABSTRACT Geranoaetus polyosoma (Quoy &amp; Gaimard, 1824) is a diurnal raptor widely distributed in South America. Although the trophic ecology of this bird has been more studied in the southern extreme of its range, little information is available on its dietary response to prey supply in desert environments. In the present study, we report on the trophic ecology of G. polyosoma in a sub-urban desert zone in northern Chile, with the following objectives: (1) to quantitatively describe its diet and (2) to determine its dietary selectivity in response to prey supply in the study area. The diet of G. polyosoma consisted mainly of rodents (97.2%). A greater preference (p &lt; 0.05) was observed for the following large prey items (&gt; 19.5 g): two native...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Predation; Red-backed hawk; Trophic ecology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100330

Food habits of Anilius scytale (Serpentes: Aniliidae) in the Brazilian Amazonia
Provedor de dados: 103
Autores: Maschio,Gleomar F.; Prudente,Ana Lúcia da C.; Rodrigues,Francílio da S.; Hoogmoed,Marinus S.
Information on the diet of Anilius scytale is provided based on the analysis of 162 specimens from the Brazilian Amazonia. Amphisbaenians (Aulura anomala Barbour, 1914; Leposternon polystegumn [Duméril, 1951] and Amphisbaena sp.), which are highly specialized for a fossorial life, accounted for 81.25% of the recorded items, followed by snakes - Anilius scytale (Linnaeus, 1758), and Tantilla melanocephala (Linnaeus, 1758): 12.5% - and caecilians - Caecilia cf. gracilis Shaw, 1802: 6.25%. We found a positive, although not significant, relationship between the snout-vent length of A. scytale and the total length of the prey and a tendency for smaller specimens to ingest proportionately larger prey. Anilius scytale forages mainly on the ground, at night, as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Basal snakes; Diet.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200005

Predatory behavior of the land flatworm Notogynaphallia abundans (Platyhelminthes: Tricladida)
Provedor de dados: 103
Autores: Prasniski,Maria E. T.; Leal-Zanchet,Ana M.
Land flatworms are carnivorous, mainly predators. However, knowledge on their predatory behavior and prey preference is very scarce. This paucity of data is a limiting factor in the study of their biology and organismal ecology, resulting in a very difficult task to breed them in the laboratory for prolonged periods if prey preference and predation frequency are unknown. We investigated the predatory behavior of Notogynaphallia abundans (Graff, 1899), Geoplaninae, based on laboratory experiments. In order to determine its predatory choices, we offered mollusks, earthworms, arthropods, and other land flatworms. Only land isopods were accepted, with an average consumption of 3.4 individuals per week. Linear regression showed a positive relationship between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Isopods; Planarians; Prey preference; Weekly consumption.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000400004

Biological information of Taunayia bifasciata (Siluriformes: Heptapteridae): a threatened and unknown catfish
Provedor de dados: 103
Autores: Rondineli,Giulianna; Carmassi,Alberto Luciano; Braga,Francisco Manoel de Souza.
Taunayia bifasciata (Eigenmann &amp;amp; Norris, 1900) is a small catfish that inhabits headwater streams of the Tietê and Paraíba do Sul river basins, southeastern Brazil, being restricted to the Atlantic rain forest. The species is found on lists of threatened species of Brazil and the state of São Paulo. Despite that, there is no literature information about the biology of the species. In the present study we endeavored to collect data on the biology of T. bifasciata. A total of 37 specimens were captured in two streams, Piracuama and Oliveiras. Of those, 22 were females, 14 were males and 1 specimen was immature. Adults with mature gonads were captured in all samples excepting the last, suggesting that T. bifasciata has a long reproductive season. The...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Diet; Fecundity; Population structure; Reproductive season; Eastern Serra da Mantiqueira.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400018

Diet of the lizard Ecpleopus gaudichaudii (Gymnophthalmidae) in Atlantic Rainforest, state of Rio de Janeiro, Brazil
Provedor de dados: 103
Autores: Maia,Thiago; Almeida-Gomes,Mauricio; Siqueira,Carla C.; Vrcibradic,Davor; Kiefer,Mara C.; Rocha,Carlos Frederico D.
In this study we analyzed the diet of the gymnophthalmid lizard Ecpleopus gaudichaudii Duméril &amp;amp; Bibron, 1839, a typical inhabitant of the forest-floor leaf litter, in an Atlantic Forest area in the state of Rio de Janeiro, southeastern Brazil. The 26 individuals sampled during the study had a mean snout-vent length (SVL) of 36.2 ± 4.2 mm and a mean jaw width (JW) of 4.1 ± 0.5 mm. We did not find differences in SVL between males and females, though the sexes differed in JW when the effect of body size was factored out, with females presenting higher values. The diet of the lizards was composed exclusively of arthropods, especially isopods and orthopterans. The similarity in trophic niches among seasons (volumetric and numerical proportions of prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Lacertilia; Rainforest; Seasonality; Squamata.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500006

Feeding ecology of Liophis reginae semilineatus (Serpentes: Colubridae: Xenodontinae) in eastern Amazon, Brazil
Provedor de dados: 103
Autores: Albarelli,Luiz Paulo P.; Santos-Costa,Maria C.
We studied the diet of Liophis reginae semilineatus (Wagler, 1824) from eastern Amazon, Brazil, based on the analysis of 182 preserved specimens. Thirty-six individuals had prey in their stomachs; 34 (95%) contained exclusively anurans and 2 (5%) contained both anurans and lizards. The most common prey items were small Leptodactylus sp. (33.3%), followed by Physalaemus ephippifer (Steindachner, 1864) (10.3%). Prey ingested head-first (78%; n = 25) were significantly larger than prey ingested tail-first (22%; n = 7). Females of L. reginae semilineatus have longer and wider heads than conspecific males with the same body length, which correspond to sexual divergences in the diet (size of the prey). No correlation was found between snake head length vs. prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anurophagous; Diet; Neotropical; Snake.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100013

Feeding habits of giant otters Pteronura brasiliensis (Carnivora: Mustelidae) in the Balbina hydroelectric reservoir, Central Brazilian Amazon
Provedor de dados: 103
Autores: Cabral,Márcia M. M.; Zuanon,Jansen; de Mattos,Gália E.; Rosas,Fernando C. W.
This study aimed to identify the diet of giant otters, Pteronura brasiliensis (Zimmermann, 1780) in the Balbina reservoir (01º55'S, 59º29'W), to compare it with literature data on the diet of giant otters from non-dammed areas, and to verify the effects of the seasonal changes in water levels on the feeding habits of Balbina otters. A total of 254 feces samples were collected and identified according to the lowest possible taxonomic level. Teleostei fish were present in 100% of the samples; two samples also presented monkey fur (n = 1) and sloth fur (n = 1), suggesting that the diet of P. brasiliensis, in the reservoir, is almost exclusively based on fish. Ten fish families were identified in our samples, six of which were exclusive to the Balbina Lake...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon basin; Aquatic mammal; Conservation; Dam; Diet.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100008

Feeding habit of the Brazilian tapir, Tapirus terrestris (Perissodactyla: Tapiridae) in a vegetation transition zone in south-eastern Brazil
Provedor de dados: 103
Autores: Talamoni,Sônia A.; Assis,Miguel A. C.
Tapirs are considered generalist herbivores and the differences in the proportions of dietary items are often attributed to differences in the habitats where individuals live. This study characterized the feeding habit of Tapirus terrestris (Linnaeus, 1758) in a nature reserve in south-eastern Brazil, located in a region considered a transition zone between the Cerrado (Brazilian savanna) and the Atlantic Forest biomes. Fecal samples from T. terrestris individuals were collected monthly at six sampling areas that encompassed a total of 242.22 ha. There were 147 fresh samples found (77 during the dry season and 70 during the wet season). The diet of the tapirs in this reserve was characterized by the prevalent browsing on leaves and stems. There was a low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Psidium; Seasonality; Serra do Caraça.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200007

Differential detectability of rodents and birds in scats of ocelots, Leopardus pardalis (Mammalia: Felidae)
Provedor de dados: 103
Autores: Pires,Mathias M.; Widmer,Cynthia E.; Silva,Claudio; Setz,Eleonore Z. F.
Scat analysis is a valuable tool for the description and quantification of mammal diets. However, estimating the number of prey eaten using prey remains found in feces is difficult mainly due to differential digestibility of prey. In this context, we performed feeding trials with captive ocelots, Leopardus pardalis (Linnaeus, 1785), to evaluate the time needed until complete elimination in feces of different prey such as rodents and birds. Rodents took up to five days and birds two days until complete elimination. Our results are consistent in showing that elimination time differs for different prey and some prey may take a long time to be expelled, inducing errors in dietary studies.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Captive; Diet; Feeding trial; Prey.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000200019

Feeding habits of Molina's hog-nosed skunk, Conepatus chinga (Carnivora: Mephitidae) in the extreme south of Brazil
Provedor de dados: 103
Autores: Peters,Felipe Bortolotto; Roth,Paulo Ricardo de Oliveira; Christoff,Alexandre Uarth.
Feeding habits of the Molina's hog-nosed skunk, Conepatus chinga (Molina, 1782) in the extreme south of Brazil. We analyzed 60 stomachs of road-kills of C. chinga in the extreme south of Brazil. The contents revealed 808 prey parts, including invertebrates (frequency of occurrence - FO = 96.7% and relative abundance - RA = 94.7%), vertebrates (FO = 18.3% and RA = 2.8%) and plants (FO = 31.7% and RA = 2.3%). We identified 18 kinds of food, including the invertebrate order Coleoptera which showed the highest FO (86.7%) and RA (75.2%). Other important orders were Orthoptera (FO = 35% and RA = 10.4%) and Araneae (FO = 41.7% and RA = 4%). The combination of occurrence and abundance of the preys consumed allowed classifying C. chinga as an omnivorous with a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Omnivorous; Pampa; Predator; Road-kill fauna.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000200006

Ecomorphological relationships among four Characiformes fish species in a tropical reservoir in South-eastern Brazil
Provedor de dados: 103
Autores: Silva-Camacho,Débora de S.; Santos,Joaquim N. de S.; Gomes,Rafaela de S.; Araújo,Francisco G.
The aim of this study was to assess the ecomorphological patterns and diet of four Characiformes fish species in a poorly physically structured tropical reservoir. We tested the hypothesis that body shape and diet are associated, because environmental pressure acts on the phenotype, selecting traits according to the available resources. Ten ecomorphological attributes of 45 individuals of each species - Astyanax cf. bimaculatus (Linnaeus, 1758), Astyanax parahybae Eigenmann, 1908, Oligosarcus hepsetus (Cuvier, 1829), and Metynnis maculatus (Kner, 1858) - , collected between February and November 2003, were analyzed, and the patterns were assessed using Principal Components Analysis (PCA). Diet similarity among fish species was assessed using cluster...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body shape; Diet; Freshwater fishes; Morphological diversity; Niche overlap.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000100004

Atol das Rocas: an oasis for Octopus insularis juveniles (Cephalopoda: Octopodidae)
Provedor de dados: 103
Autores: Bouth,Helena F; Leite,Tatiana S; Lima,Françoise D. de; Oliveira,Jorge E. Lins.
The habitat, population density, distribution and diet of Octopus insularis Leite &amp;amp; Haimovici, 2008 were studied in the Atol das Rocas Biological Reserve, based on visual census carried out in fixed quadrants. For each octopus den, we collected data on octopus size, substrate, type of den, and food remains around it. A total of 100 octopus dens were found within the fixed quadrants. The highest density occurred at Mapas area (0.30 inds/100 m²) and the lowest at Crista Algálica (0.07 inds/100 m²). The preferred den type was the one on the reef bed (69%), reinforcing the importance of rocky substrates for this species. A total of 454 food items, classified into 22 distinct taxa, were collected. The class Crustacea was best represented, accounting for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Habitat; Oceanic island; Octopus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100007

Feeding ecology of the pygmy gecko Coleodactylus natalensis (Squamata: Sphaerodactylidae) in the Brazilian Atlantic Forest
Provedor de dados: 103
Autores: Lisboa,Carolina M. C. A.; Sales,Raul F. D.; Freire,Eliza M. X.
We studied the feeding ecology of a population of Coleodactylus natalensis Freire, 1999, an endemic gecko of Atlantic Forest fragments in the state of Rio Grande do Norte, northeastern Brazil. Lizards (N = 49) were collected manually through active search in the four habitats of Parque Estadual Dunas de Natal, type locality of the species. In the laboratory, we measured the lizards and registered the number of consumed prey items identified to Order, its dimensions and frequencies. We also collected samples of leaf litter in each habitat to determine prey availability. Females were significantly larger than males, but head size did not differ between the sexes. The most important prey categories in the diet of C. natalensis based on number, volume and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arthropods; Diet; Electivity; Leaf litter; Lizards.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000400002

Diet and potential feeding overlap between Trichiurus lepturus (Osteichthyes: Perciformes) and Pontoporia blainvillei (Mammalia: Cetacea) in Northern Rio de Janeiro, Brazil
Provedor de dados: 103
Autores: Bittar,Vanessa T.; Di Beneditto,Ana Paula M.
This study describes the diet and assesses potential overlap in the feeding habits of Trichiurus lepturus Linnaeus, 1758 and Pontoporia blainvilleiGervais &amp;amp; D'Orbigny, 1844 in northern Rio de Janeiro, southeastern Brazil. Fishes were numerically dominant in both diets, followed by cephalopods for P. blainvillei and crustaceans for T. lepturus. Both predators move along similar coastal feeding areas in northern Rio de Janeiro, but our results indicate differences in their resource exploitation, what allows for their coexistence.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cannibalism; Diet; Feeding; Food habits; Predators.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200023

The feeding habits of the eyespot skate Atlantoraja cyclophora (Elasmobranchii: Rajiformes) in southeastern Brazil
Provedor de dados: 103
Autores: Viana,Alessandra da Fonseca; Vianna,Marcelo.
The stomach contents of the eyespot skate, Atlantoraja cyclophora (Regan, 1903), were examined with the goal to provide information about the diet of the species. Samples were collected off the southern coast of Rio de Janeiro, Brazil, near Ilha Grande, between January 2006 and August 2007, at a depth of about 60 m. The diet was analyzed by sex, maturity stages and quarterly to verify differences in the importance of food items. The latter were analyzed by: frequency of occurrence, percentage of weight and in the Alimentary Index. The trophic niche width was determined to assess the degree of specialization in the diet. Additionally, the degree of dietary overlap between males and females; juveniles and adults and periods of the year were defined. A total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Elasmobranch; Trophic niche; Rajidae; Rio de Janeiro.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000200003

Inulin as a growth promoter in diets for rabbits
Provedor de dados: 96
Autores: Montiel,Rocío Salas; Acosta,Irene Torres; Delgado,Enrique Villarreal; Juárez-Silva,María Eugenia; Azaola,Alejandro; Romo,Fernando Pérez-Gil.
Sixty New Zealand rabbits aged 40 days were divided into 4 groups of 15 animals. The control group received a free diet of antibiotic growth promoter (AGP) and inulin. The second group was supplemented with 2.5 g/kg of inulin. The third was administered AGP with 0.1 g/kg of flavomycin. Finally, the fourth group received a 2.5 and 0.1 g/kg inulin/AGP diet. Body weight gain was higher in the control group. Rabbits supplemented with inulin had lower values ​​of triglycerides compared with the control and AGP groups, and their glucose level was significantly lower than those treated with AGP. Additionally, serum calcium and magnesium concentrations were higher than the other groups, particularly with regard to AGP. The bone content with regard to calcium,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone; Caecal; Crypts; Diet; Inulin; Minerals; Mucosa.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200008

Diet supplementation with phytase on performance of broiler chickens
Provedor de dados: 96
Autores: Lelis,Guilherme Rodrigues; Albino,Luiz Fernando Teixeira; Calderano,Arele Arlindo; Tavernari,Fernando de Castro; Rostagno,Horacio Santiago; Campos,Anastácia Maria de Araújo; Araújo,Wagner Azis Garcia de; Ribeiro Junior,Valdir.
The assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutritional levels, compared with the positive control. The nutrient contents in negative controls one and two were reduced progressively and these diets were supplemented with phytase levels of 250 and 500 ftu/kg of the diet, respectively. Two diets were formulated: pre-starter/starter, 1-21 days, and growth/finishing, from 21 to 40 days). In both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Productive efficiency index; Weight gain.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400014

Digestible lysine levels in diets supplemented with ractopamine
Provedor de dados: 96
Autores: Souza,Evelar de Oliveira; Haese,Douglas; Kill,João Luís; Haddade,Ismail Ramalho; Lacerda,Elcio das Graça; Saraiva,Alysson; Silva,Francisco Carlos de Oliveira; Sobreiro,Rodrigo Pereira.
In order evaluate digestible lysine levels in diets supplemented with 20 ppm of ractopamine on the performance and carcass traits, 64 barrows with high genetic potential at finishing phase were allotted in a completely randomized block design with four digestible lysine levels (0.80, 0.90, 1.00, and 1.10%), eight replicates and two pigs per experimental unit. Initial body weight and pigs' kinship were used as criteria in the blocks formation. Diets were mainly composed of corn and soybean meal supplemented with minerals, vitamins and amino acids to meet pigs' nutritional requirements at the finishing phase, except for digestible lysine. No effect of digestible lysine levels was observed in animal performance. The digestible lysine intake increased linearly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additive; Amino acid; Carcass; Diet; Meat.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001000018

Histopathological aspects of the liver of free-living and farmed bullfrogs (Lithobates catesbeianus)
Provedor de dados: 96
Autores: Seixas Filho,José Teixeira de; Camargo Filho,Claudio Barberini; Pereira,Marcelo Maia; Martins,Ana Maria Cristina Rebello Pinto da Fonseca; Ribeiro Filho,Oswaldo Pinto; Mello,Sílvia Conceição Reis Pereira; Cassiano,Luara Lucena; Hipolito,Marcio.
ABSTRACT The objective of this study was to compare the histopathological aspects of the liver of free-living and farmed bullfrogs (Lithobates catesbeianus). Thirty liver samples were collected from young and adult bullfrogs in the states of Minas Gerais and Rio de Janeiro, Brazil. Marked blood congestion and even hemorrhage and a large number of melanomacrophages were observed in most of the livers from free-living bullfrogs. Additionally, hepatocytes showed cytoplasmic eosinophilia and some showed nuclear hypertrophy and presence of microvesicular steatosis; small foci of infiltrates of mononuclear cells were observed in some samples, as well as a thicker capsule. In the farmed bullfrogs, cytoplasmic rarefaction was normal. Morphologically, unlike the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibians; Diet; Nutritional disorder; Pathology; Protein.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400275

Food habits of two syntopic canids, the maned wolf (Chrysocyon brachyurus) and the crab-eating fox (Cerdocyon thous), in southeastern Brazil
Provedor de dados: 97
Autores: ARRUDA BUENO,ADRIANA DE; MOTTA-JUNIOR,JOSÉ CARLOS.
The maned wolf (Chrysocyon brachyurus) and the crab-eating fox (Cerdocyon thous) are two South American canids with large overlap in their geographic distribution. However, there are few data on the comparative ecology of these species. The aim of this research was to quantify the diet of these two canids living in syntopy at three levels: frequency of occurrence, minimum number of individuals preyed and estimated biomass ingested. Additionally, seasonality in the consumption of major groups of food items and aspects of prey size distribution were assessed. The study took place in the Experimental Station of Itapetininga, São Paulo State, Brazil. General results showed that both canids are omnivorous in accordance with other studies. By occurrences, the...
Tipo: Journal article
Palavras-chave: Chrysocyon brachyurus; Cerdocyon thous; Brazil; Diet; Yntopy.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000100002

Feeding and reproduction ecology of the lizard Tropidurus torquatus (Squamata: Tropiduridae) in a rock outcrop area in southeastern Brazil
Provedor de dados: 97
Autores: GOMIDES,SAMUEL C; RIBEIRO,LEONARDO B; PETERS,VERA M; SOUSA,BERNADETE M.
This work evaluates the diet and the reproductive cycle of Tropidurus torquatus in relation to seasonality in a rock outcrop formations in a remaining area of Atlantic Rainforest. The data indicate that the lizards feed mainly on arthropods and plant material. The female reproductive activity varies between seasons, while males contain spermatozoids throughout the year. The minimum body size at maturity of the individuals was larger when compared to other population of the same species studied by other authors. The data obtained in the present study confirm previous observations about the different patterns in diet composition and reproductive cycles of each population of this species in different latitude and occurrence areas, and provide the first study...
Tipo: Journal article
Palavras-chave: Diet; Follicular cycle; Reproductive ecology; Seasonal changes; Testicular cycle.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000200003

Obsessed with grasses?: The case of mara Dolichotis patagonum(Caviidae: Rodentia)
Provedor de dados: 97
Autores: SOMBRA,MOIRA S.; MANGIONE,ANTONIO M.
The diet of mara (Dolichotis patagonum, Zimmeraman 1780) within the limits of Sierra de las Quijadas National Park (San Luis, Argentina) is described. Other studies regarding mara’s diet showed that mara, feeds on different species of grasses and shrubs. However, there is controversy regarding the proportions of these items in the diet or whether this proportion varies seasonally. Considering mara’s body size, anatomical features and physiology, we suggest that mara feeds on grasses in a greater proportion than shrubs and forbs. Moreover, giving that in this region precipitation varies considerably between seasons; it is also expected to find a correlation between the diet of mara and seasons. Fecal pellets of mara were collected during four periods...
Tipo: Journal article
Palavras-chave: Dolichotis patagonum; Diet; Grasses; Preference; Sierra de las Quijadas.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000300004

Trophic niche overlap between two Chilean endemic species of Trichomycterus (Teleostei: Siluriformes)
Provedor de dados: 97
Autores: SCOTT,SERGIO; PARDO,RODRIGO; VILA,IRMA.
Trichomycterus areolatus and Trichomycterus chiltoni are endemic siluriform fishes of Chile. They are the only Chilean species of this genus that live in sympatry and coexist in the Biobio basin. High trophic niche overlap between both species was found. Horn's index varied from 0.668 to 0.885 among seasons, without significant differences, and Schoener's index varied from 0.639 to 0.912. Also the discriminant analysis showed no significant differences in prey item between the two species. Trophic composition of T. chiltoni and T. areolatus consisted mainly in chironomid larvae and other aquatic invertebrates. At all seasons T. chiltoni showed the greatest prey richness. Principal component analysis (PCA) showed a high similarity between diets of T....
Tipo: Journal article
Palavras-chave: Diet; Sympatry; Trichomycterus areolatus; Trichomycterus chiltoni.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400004

The raptors of Torres del Paine National Park, Chile: biodiversity and conservation
Provedor de dados: 97
Autores: JAKSIC,FABIAN M; IRIARTE,J. AGUSTÍN; JIMÉNEZ,JAIME E.
Fifteen raptor species (Falconiformes and Strigiformes) breed and other two may breed in Torres del Paine National Park (Chilean Patagonia), the highest raptor species richness documented in Chile. Accounts for each raptor species in Torres del Paine are provided, including information on weight, habitat, diet, residence, conservation, and miscellaneous observations in the Park. We compare raptor species richness in Torres del Paine with well studied localities in central and northern Chile, and speculate on causes for the higher raptor diversity observed in the Park. Raptor macroniches in Torres del Paine are assessed, describing primarily their use of two major habitat types and nine food resources. We examine food-niche relationships for a subset of...
Tipo: Journal article
Palavras-chave: Falconiformes; Strigiformes; Chile; Patagonia; Diet; Weight; Habitat use; Niche relationships.
Ano: 2002
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2002000200014

Reproductive biology and feeding of Curimatella lepidura (Eigenmann &amp;amp; Eigenmann) (Pisces, Curimatidae) in Juramento reservoir, Minas Gerais, Brazil
Provedor de dados: 104
Autores: Alvarenga,Érika R. de; Bazzoli,Nilo; Santos,Gilmar B.; Rizzo,Elizete.
Reproductive biology and feeding of Curimatella lepidura (Eigenmann &amp;amp; Eigenmann, 1889) were studied in Juramento reservoir, São Francisco River basin, Southeastern Brazil. Histological analyses and gonadosomatic indexes revealed females and males in reproductive activity from October to March and total spawning occurring from January to March coupled with the peak of spermiating males. In the dry season, the fishes accumulated energetic reserves for reproduction during a short rainy season. The species presented sexual dimorphism, being females larger than males and sexual maturation occurring close to 7.7 cm standard length for females and 7.1 cm for males. C. lepidura presented iliophagous feeding habit, ingesting mainly sediment/detritus and a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Gonadal maturation; Reproduction; São Francisco River; Spawning.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000200002

Mudança na dieta da traíra Hoplias malabaricus (Bloch) (Erythrinidae, Characiformes) em lagoas da bacia do rio Doce devido à introdução de peixes piscívoros
Provedor de dados: 104
Autores: Pompeu,Paulo dos Santos; Godinho,Alexandre Lima.
Two piscivorous fishes, peacock bass (Cichla monoculus Spix &amp;amp; Agassiz, 1831) (Perciformes) and piranha (Pygocentrus nattereri Kner, 1860) (Characiformes), were introduced in some Rio Doce valley lakes (19º50'S, 42º40'W) for sport fisheries enhancement. As a consequence, small individuals and species were practically vanished in the host lakes. In this study, the effects of peacock bass and piranha introductions on the diet of a native piscivorous fish, the trahira - Hoplias malabaricus (Bloch, 1794) are presented. Trahira's diet from three lakes were was compared with the stomach contentsdiet of trahira's living in another between three lakes with and three withoutstocked with the piscivorous species peacock bass and piranha. In the lakes with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichla; Pygocentrus; Hoplias malabaricus; Diet; Species introduction.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400016

Feeding overlap in two sympatric species of Rhinella (Anura: Bufonidae) of the Atlantic Rain Forest
Provedor de dados: 104
Autores: Sabagh,Leandro T.; Carvalho-e-Silva,Ana M. P. T.
A clear understanding of the relationships between overlapping, similarity, and competition is necessary to understand many of the questions about the structure and operation of a community. Rhinella icterica (Spix, 1824) and Rhinella crucifer (Wied Neuwied, 1821) are sympatric species of toads occurring in the National Park of Serra dos Órgãos in southeastern Brazil. The aim of the present study was to assess the dietary overlap of these two species. Ninety-four stomachs were analyzed, and 2245 prey items were found. Common prey were Hymenoptera, Coleoptera, Diptera, Lepidoptera larvae, Blattaria, Orthoptera, Hemiptera, Opiliones, and Aranaea. Ants were the most important prey in both diets, followed by beetles and cockroaches. The niche breadth of R....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Diet; Rhinella crucifer; Rhinella icterica.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200013

Dieta da pirambeba Serrasalmus brandtii Reinhardt (Teleostei, Characidae) em quatro lagoas marginais do rio São Francisco, Brasil
Provedor de dados: 104
Autores: Pompeu,Paulo dos Santos.
The diet of pirambeba Serrasalmus brandtii Reinhardt 1874 was studied in four floodplain lakes in São Francisco river. The main food items consumed were chunks of fish flesh, small fishes, scales, fins and aquatic insects. Trophic ontogeny was observed in all lakes. The amount of fishes in the diet of S. brandtii increased with the length of the individuals, while the amount of aquatics insects, fins and scales decreased. Aquatic insects were consumed in greater proportion during the wet season. Fish ingestion, including scales and fins, was correlated with the abundance of fishes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serrasalmus brandtii; Diet; Floodplain lakes; São Francisco River.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600003

Itens alimentares encontrados em amostras de regurgitação de Pyriglena leucoptera (Vieillot) (Aves, Thamnophilidae) em uma floresta secundária no Estado do Rio de Janeiro
Provedor de dados: 104
Autores: Gomes,Verônica Souza da Mota; Alves,Vânia Soares; Ribeiro,José Ricardo Inácio.
The diet of P. leucoptera (Vieillot, 1818) was studied using the emetic tartar which induces birds' regurgitation. Birds were captured and treated between May 1996 and June 1997 in the Atlantic Forest at the city of Guapimirim, State of Rio de Janeiro, southeastern Brazil. The study area is a secondary forest continuous to the Serra dos Órgãos forest. Insect fragments of Coleoptera and Hymenoptera were the items most frequently found in the regurgitate samples. Besides contributing to the knowledge of the species diet, pictures of identified Arthropoda fragments are presented in order to aid future works on avian feeding.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyriglena leucoptera; Atlanctic Forest; Diet; Tartar emetic; Insect fragments.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400005

The influence of diet and isolation on growth and survival in the land snail Bulimulus tenuissimus (Mollusca: Bulimulidae) in laboratory
Provedor de dados: 104
Autores: Meireles,Liliane M. O.; Silva,Lidiane C.; Junqueira,Flávia O.; Bessa,Elisabeth C. A.
Feed influences directly growth and survival in land snails. Here, we investigate the influence of diet and isolation on growth and survival in Bulimulus tenuissimus (d'Orbigny, 1835) in the laboratory. Animals were maintained individually and in groups and three different types of diets: lettuce, ration and both lettuce and ration (mixed diet) for 210 days. Isolated animals, in all diet types, grew more rapidly than grouped animals. Also, snails fed with lettuce grew most slowly in isolated or grouped treatments. Within isolated or grouped treatments, growth rates were similar for the ration and the mixed diet. Mortality rate was higher in animals fed on lettuce only, in both density treatments. Thus, diet and density are important components of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Feed; Land snail; Mortality.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200010

Alimentação de Oligosarcus longirostris Menezes &amp;amp; Gèry (Osteichthyes, acestrorhynchinae) do Reservatório de Salto Segredo, Paraná, Brasil
Provedor de dados: 104
Autores: Gealh,Ana Maria; Hahn,Norma Segatti.
In the feeding study of O. longirostris Menezes &amp;amp; Gèry, 1983, 211 stomachs from fish caught between March 1993 and February 1994 were analysed. Diet composition was analysed by the index of relative importance which deals with the numerical and gravimetric occurrence frequency. Results indicated that the species is piscivorous and its preferential food consisted oíAslyanax sp. 2. It was also found that Astyanax sp. 3 became an important food item, depending on the site of capture and its availability. Availability of prey seems to have a strong influence on the diet of O. longirostris. This same tendency has been observed during the different seasons of the year. Ontogenetic changes have also been found in the basic diet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oligosarcus longirostris; Diet; Piscivorous; Salto Segredo Reservoir.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400017

Chemically based interactions and nutritional ecology of Labidus praedator (Formicidae: Ecitoninae) in an agroecosystem adjacent to a gallery forest
Provedor de dados: 104
Autores: Monteiro,André F. M.; Sujii,Edison R.; Morais,Helena C.
New World army ants species have an important role in structuring invertebrate communities. Labidus praedator (Fr. Smith, 1858) is a generalist top predator that can reduce pest densities in agroecosystems. The aim of this study was to describe behavioral attributes, diet composition and interspecific interactions of the ant L. praedator. We searched for army ant raids using standardized trail-walk surveys and plotted army ants raids positions on an aerial image. We photographed events at swarm raids of L. praedator and recorded its diet items in basal columns near bivouacs. Six species from four Ecitoninae genera - Labidus (Jurine, 1807), Nomamyrmex (Borgmeier, 1936), Neivamyrmex (Borgmeier, 1940) and Eciton (Latreille, 1804) - were recorded. Caterpillars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Army ants; Cerrado; Chemical opportunism; Diet; Swarm followers.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400012

Frugivoria em morcegos (Mammalia, Chiroptera) no Parque Estadual Intervales, sudeste do Brasil
Provedor de dados: 104
Autores: Passos,Fernando C.; Silva,Wesley R.; Pedro,Wagner A.; Bonin,Marcela R.
This study was carried out at the Intervales State Park, an Atlantic Rain Forest area in Southeastern Brazil. Bats were monthly mist netted over a full year, and fecal samples were collected for dietary analysis. The seeds found in each sample were identified in the laboratory under a stereoscopic microscope by comparison with seeds taken from ripe fruits collected in the study area. Three hundred and seventy one bats were collected, of which 316 (85.2%) were frugivorous. The total number of fecal samples with seeds and/or pulp was 121. Sturnira lilium (E. Geoffroy, 1810) was the most abundant species in the study area (n = 157 captures) and Solanaceae fruits accounted for 78.5% of the fecal samples with seeds (n = 56). Artibeus fimbriatus Gray, 1838 (n =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artibeus; Carollia; Diet; Sturnira.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300024

Comportamento e dieta alimentar de uma espécie de Latrodectus do grupo Mactans (Araneae, Theridiidae) em cativeiro
Provedor de dados: 104
Autores: Dias,Maria de Fátima da Rocha; Brazil,Tania Kobler.
Latrodectus gr. mactans is responsible for 28% of ali accidents provoked by spiders in state of Bahia, Brazil (1980-1990), which makes necessary the study of its manejament. The spiders were captured in Ondina, Salvador, and in Baxio, Esplanada (Bahia, Brazil); they were mantained in captivity, with food supply weekly (Atta sp., larva of Tenebrio sp. and Drosophila melanogaster) with three hours/ offers observation time, during march/95 to april/96. In captivity, the spiders accepted two kinds of food: Atta sp., which seems to be the major item of its diet in natural conditions, and larva of Tenebrio sp., which is not available in natural conditions. Drosophila melanogaster was systematically rejected. The feeding behavior iscomposed by four distinct...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araneae; Theridiidae; Latrodectus; Feed; Diet; Behavior.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400008

Feeding habits of the crab-eating fox, Cerdocyon thous (Carnivora: Canidae), in a mosaic area with native and exotic vegetation in Southern Brazil
Provedor de dados: 104
Autores: Rocha,Vlamir J.; Aguiar,Lucas M.; Silva-Pereira,José E.; Moro-Rios,Rodrigo F.; Passos,Fernando C.
Cerdocyon thous (Linnaeus, 1766) is the most widespread neotropical canid, most commonly inhabiting forested areas. This animal is a generalist omnivore that is able to use environments disturbed by human activities. The aim of this study was to describe its diet through the stomach content analysis of 30 samples obtained from specimens that were run over in a mosaic composed by Araucaria Pine Forest, Semidecidual Seasonal Forest, natural grasslands, and exotic vegetation. The items were quantified by frequency of occurrence (F.O.) and percentage of occurrence (P.O.). A total of 64 food items were found among 171 occurrences. According to F.O. method, plant items corresponded to 93.3% of the occurrences, followed by animal items (86.7%) and human rejects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnivorous; Diet; Exotic species; Frugivory; Neotropical canid; Silviculture.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400003

Plasticidade alimentar em Rivulus pictus Costa (Osteichthtyes, Cyprinodontiformes, Rivulidae) de uma pequena lagoa em Brasília, Distrito Federal, Brasil
Provedor de dados: 104
Autores: Shibatta,Oscar Akio; Bennemann,Sirlei Terezinha.
Rivulus pictus has a wide distribution in Distrito Federal and lives in different environments, including small lakes. The analysis of gastric and intestinal contents showed that most of the 21 ingested food items were from autochthonous origin and characterized the diet of an omnivorous fish with a trend to planktivory. Five feeding items were important in the composition of the alimentary spectrum and revealed that food resources are explored near water surface (Acari), in the water column (Copepoda, Cladocera and Closterium sp.) and also in the bottom (Chironomidae). The varied diet and the capacity to explore all levels of the environment evidenced that feeding flexibility is one of the factors that facilitates the survival of this species in different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Feeding spectrum; Ecology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400009

Feeding ecology of Tropidurus torquatus (Wied) (Squamata, Tropiduridae) in two areas with different degrees of conservation in Marambaia Island, Rio de Janeiro, Southeastern Brazil
Provedor de dados: 104
Autores: Carvalho,André L. G. de; Silva,Hélio R. da; Araújo,Alexandre F. B. de; Alves-Silva,Ricardo; Silva-Leite,Roberta R. da.
We compared the effects of habitat disturbance on the feeding ecology of two local populations of Tropidurus torquatus (Wied, 1820) in restinga habitats on Ilha da Marambaia, Southeastern Brazil. Both populations presented a relatively diverse diet and differ in the number (D Max = 0.22, DF = 2, p = 0.00) and volume of prey consumed (D Max = 0.82, DF = 2, p = 0.00). Ants were the most frequent and numerous preys in both areas, and plant matter and coleopterans were the most important alimentary items in volume. The population from the disturbed area presented a larger niche breadth for number of prey items consumed (Bi num = 3.06) and volume (Bi vol = 2.98), when compared to the other population (Bj num = 2.44, Bj vol = 1.52). Niche overlap was higher for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Lizards; Optimal Foraging Theory.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000100029

Alimentação das espécies de Siphlophis Fitzinger (Serpentes, Colubridae, Xenodontinae, Pseudoboini)
Provedor de dados: 104
Autores: Prudente,Ana Lúcia da Costa; Moura-Leite,Júlio César de; Morato,Sérgio Augusto Abrahão.
Survey of 30 stoniach and/or gut contents of the five species of Siphlophis Fitzinger, 1843 revealed predominance of mostly diurnal species of lizards. Remains of nocturnal prey and snakes were also found. For the first time, one frog and one bat are recorded as preys of one species (S. cervimis Laurenti, 1768). Predation on mollusks and birds is not confirmed herein.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Colubridae; Xenodontinae; Pseudoboini; Siphlophis; Diet.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200010

Observations on the natural history of the lizard Mabuya macrorhyncha Hoge (Scincidae) in Queimada Grande Island, São Paulo, Brazil
Provedor de dados: 104
Autores: Vrcibradic,Davor; Rocha,Carlos F. D.
Data are presented on the on diet, thermal biology, microhabitat use, reproduction and helminth infection parameters of a population of Mabuya macrorhyncha hoge, 1946 inhabiting the small island of Queimada Grande, on the southern coast of São Paulo State. The lizards were collected on November 1997 (spring) and on July 1998 (winter). Most lizards were perched above ground, mainly on herbaceous vegetation. Mean lizard body temperatures were significantly higher in spring (32.6 ± 1.9ºC) than in winter (28.5 ± 2.4ºC), as were air temperatures. Mean litter size of females was 2.7 (range 2-3). The diet was composed of a diverse array of arthropods and some small fruits. Of the 19 lizards examined, 16 (84.2%) harboured helminths. Three species of helminth (one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Endoparasites; Insular habitat; Skink; Thermal biology.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400053

Diet adjustments of maned wolves, Chrysocyon brachyurus (Illiger) (Mammalia, Canidae), subjected to supplemental feeding in a private natural reserve, Southeastern Brazil
Provedor de dados: 104
Autores: Silva,Joaquim A.; Talamoni,Sônia A.
From the analysis of 230 scats, the diet of the maned wolves, Chrysocyon brachyurus (Illiger, 1815), was determined in a private natural reserve in southeastern Brazil in which ecotourism activities are developed and the animals are deliberately fed bovine meat. A total of 569 occurrences of food items were recorded, of which 56.8% were of animal origin and 29.1% of vegetal origin. Rodents, insects and birds added up to 35.8% of the occurrences, yet accounted for 68.5% of the total number of preys (277). Insects, however, had practically no importance (0.1%) in the total estimated biomass consumed. Even though the fruit Solanum lycocarpum St.-Hil. is a common food item in the diet of the maned wolf, its occurrence in the diet at the Serra do Caraça Reserve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chrysocyon brachyurus; Diet; Maned wolves; RPPN Serra do Caraça.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000200026

Alimentação de Bairdiella ronchus (Cuvier) (Perciformes, Sciaenidae) na Baía de Guaratuba, Paraná, Brasil
Provedor de dados: 104
Autores: Vendel,Ana Lúcia; Chaves,Paulo de Tarso da Cunha.
Seasonal variation of food items of Bairdiella ronchus (Cuvier, 1830) classified by size was analysed based on monthly samples between september/1993 and september/1996 at the Guaratuba Bay, Southern Brazil. The stomach contents of a hundred eighty-two fishes were analysed by the Occunence Frequency Method and Point Count for a Lot Method. The individuais were divided in two groups, smaller and longer than 140mm, and a comparative study of digestive tract and branchial are was performed for these groups. For fishes smaller than 140mm the following sequence of items was obtained matching both methods by using the Preponderance índices: decapods (subdivided in Brachyura, Caridea and Penaeidea), polychaets, isopods, fishes, unidentified material, copepods,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Bairdiella ronchus; Sciaenidae; Guaratuba Bay.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200003

Dieta do tucunaré-amarelo Cichla monoculus (Bloch &amp;amp; Schneider) (Osteichthyes, Cichlidae), no Reservatório de Lajes, Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Santos,Luciano Neves dos; Gonzalez,Alejandra Filippo; Araújo,Francisco Gerson.
The diet of Cichla monoculus (Bloch &amp;amp; Schneider, 1801) in Lajes's Reservoir, a major impoundment in Rio de Janeiro State, Brazil, was assessed, from fishes collected in 1994,1996 and 1999/2000. Gut contents in individuals was analyzed by the index of relative importance (IRI) which deals with numerical, gravimetrical and frequency of occurrence. Cichla monoculus showed a strong piscivorous habits feeding on Cichlidae, Characidae and Pimelodidae, in decreasing order of importance, with a remarkable cannibalism on young-of-the-year. Others minor items in the diet were Macrobrachium sp. and Odonata. Changes in feeding composition varied with reservoir's zones and seasons, with higher diversity in Autumn and peaks of cannibalism in lower zone during...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichla; Trofic ecology; Diet; Reservoirs; Freshwater fish; Condition factor; Feeding habits.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500015

Decápodos (Crustacea) utilizados na alimentação de Dasyatis guttata (Bloch &amp;amp; Schneider) (Elasmobranchii, Dasyatididae) na área de influência da estação ecológica Ilha do Medo, Baía de Rodos os Santos, Bahia, Brasil
Provedor de dados: 104
Autores: Carqueija,César Roberto Goes; Souza Filho,José Jerônimo de; Gouvêa,Edilson Pires de; Queiroz,Everaldo Lima de.
The occurence of Decapoda crustaceans in the diet of Dasyatis guttata (Bloch &amp;amp; Schneider, 1801) (Elasmobranchii. Dasyatididae) is reported. Inferences are also made about some aspects of the predator - prey relationship in the area around the Ecological Station.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasmobranchii; Decapoda; Diet.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400013

The diet of Ophionereis reticulata (Echinodermata: Ophiuroidea) in southeastern Brazil
Provedor de dados: 104
Autores: Yokoyama,Leonardo Q.; Amaral,Antonia C. Z.
The ophiuroid Ophionereis reticulata (Say, 1825) occurs in the sediment-rocky shore interface, under small stones. Its diet is analyzed in this short communication. Specimens were collected at the Praia Grande beach, located on the northern coast of the state of São Paulo, Brazil, in July, 2002 and January, 2003. The animals were fixed in 70% ethanol and dissected to obtain their stomach contents. Of the total (35), 77.1% (27) had ingested some kind of food and, among those, 81.4% (22) had more than one item. The mean number of food items per stomach was 1.9. Ophionereis reticulata is an omnivorous species, consuming sediment, green and red algae, and polychaetes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Omnivorous; Ophiuroid.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300029

Ecology of Mabuya agilis (Raddi) (Lacertilia, Scincidae) at the restinga of Grumari, Rio de Janeiro, southeastern Brazil
Provedor de dados: 104
Autores: Vrcibradic,Davor; Rocha,Carlos Frederico Duarte.
Some aspects of the ecology of the skink Mabuya agilis (Raddi, 1823) at the restinga habitat of Grumari, in Rio de Janeiro, Brazil are studied. Most of the lizards were first sighted on the ground, though a few were using perches (mainly cacti) up to 30 cm high. Mean body temperature in activity was 33.1 ± 2.4ºC and was significantly correlated to air temperature. There was sexual dimorphism in size (snout-vent length - SVL), with females growing larger than males. Frequency of broken tails was high overall (83%) and did not differ between sexes. Females and males are sexually mature at 49 mm and 47 mm SVL, respectively. Brood size averaged 3.2 ± 1.0 (range 1-5) and was positively and significantly related to female SVL (r = 0.65, p = 0.001). Relative...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mabuya agilis; Lizard; Thermal ecology; Diet; Reproductive traits; Restinga habitat; Southeastern Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600002

Hábito alimentar de Callinectes larvatus Ordway (Crustacea, Decapoda, Portunidae) no Manguezal de Jiribatuba, Baía de Todos os Santos, Bahia
Provedor de dados: 104
Autores: Carqueija,César Roberto Goes; Gouvêa,Edilson Pires de.
The diet of Callinectes larvatus Ordway, 1863 population which occupy the mangrove of Jiribatuba, Bahia, Brazil (13o03'25"S and 38o47'38"W) is reported. The investigation of its stomachal contents showed that C. larvatus is an omnivorous species of ample feeding spectrum and presents detritivorous and opportunistic feeding strategy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Decapoda; Portunidae; Callinectes; Diet.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000100023

Aspectos da alimentação de Genidens genidens (Valenciennes) (Siluriformes, Ariidae) na Baía de Guaratuba, Paraná
Provedor de dados: 104
Autores: Chaves,Paulo de Tarso da Cunha; Vendei,Ana Lúcia.
Seasonal variation of the food items of the "bagre-urutu", Genidens genidens is analysed based on monthly samples between September, 1993 and April, 1995 at the Guaratuba Bay, coast of Paraná. The stomach contents of 105 fish is analysed by the Occurrence Frequency Method and 41 of these have also been analysed by the Volumetric Method. Matching both methods using the Preponderance índices, a larger incidence of decapods is determined, followed by other crustaceans, molluscs, polychaets, fish, and plant material. The data show the existence of a strong seasonal variation in the diet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Guaratuba Bay; Estuary; Ariidae; Seasonal Variation; Diet.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300016

Dieta de um grupo de mico-leão-preto, Leontopithecus chrysopygus (Mikan) (Mammalia, Callitrichidae), na Estação Ecológica dos Caetetus, São Paulo
Provedor de dados: 104
Autores: Passos,Fernando de Camargo.
In this study carried out in the Caetetus Ecological Station, Sao Paulo, southeastern Brazil, a wild group of black lion tamarins was accompanied during 1989 to 1991, to analyse the dietary habits of the species. The scan sampling method was used to gather data. A total of 961 behaviors were recorded, of which feeding occupied 23.3% of the time involved in the behaviors. The major dietary components observed in the black lion tamarins were fruits, tree exudates and animal preys (67.9%, 22.8% and 8.9% respectively). Fruits varied monthly from 47.4 to 97.1 %, being consumed more during the rainy season, while tree exudates varied from 0 to 54.7%, and were consumed mainly during the dry season. The animal prey accounted for 0 to 15.8% of the diet. The most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callitrichidae; Diet; Feeding behavior; Seasonal variation; Black lion tamarin.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000500019

Diet, activity and reproduction of bat species (Mammalia, Chiroptera) in Central Amazonia, Brazil
Provedor de dados: 104
Autores: Bernard,Enrico.
The diet, activity and reproductive patterns of several species of bats were investigated in primary forests of Central Amazon. Between August 1996 and August 1997, using mist nets set both at canopy and understorey levels, 936 bats, belonging to 51 species, 31 genera and 6 families were captured. Fecal samples from 35 species were examined, with four food categories and 25 food items identified. Time of captures indicate a wide variation, but the major part of the species presented a peak of activity around the first hour after sunset. Three reproductive peaks were observed: October-November; January-February; and July-August, but reproductive patterns varied among the families. The structure of the bat fauna in Manaus is similar to other sites in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Activity patterns; Bats; Biodiversity; Amazon Forest; Brazil; Diet; Guilds; Primary forests; Reproductive patterns.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100016

Alimentação em machos e fêmeas do pirá-brasília, Simpsonichthys boitonei Carvalho (Cyprinodontiformes, Rivulidae)
Provedor de dados: 104
Autores: Shibatta,Oscar Akio; Rocha,Antônio José Andrade.
Simpsonichthys boitonei Carvalho, 1959 has an evident sexual dimorphism, easily observed in the color pattern and body proportions. In order to know the differences in the diet between males and females, the stomach contents of 28 individuals was examined. The Sorensen's index of similarity showed 90.9% of food items in common between sex. The main food in this species is Cladocera as evidenced in terms of average number, abundance and frequency of occurrence. The presence of vegetable is evidence of a high flexibility of this species in relation to the feeding behavior. Maybe the differences in the social behavior between sex are important in the total amount of ingested food.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Simpsonichthys boitonei; Diet; Anual fish; Distrito Federal; Brasil.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200007

The diet of bats from Southeastern Brazil: the relation to echolocation and foraging behaviour
Provedor de dados: 104
Autores: Fenton,M. Brock; Whitaker Jr,John O; Vonhof,Maarten J; Waterman,Jane M; Pedro,Wagner A; Aguiar,Ludmilla M.S; Baumgarten,Júlio E; Bouchard,Sylvie; Faria,Deborah M; Portfors,Christine V; Rautenbach,Naas I.L; Scully,William; Zortea,Marlon.
In this study the incidence of moths and beetles was examined from feces samples of bats that use different foraging behaviors. Twenty sites around the Fazenda Intervales, a Field Research Station located in São Paulo State, in southeastern Brazil were sampled. Feces were collected from bats caught in mist nets, Turtle Traps or hand nets and, in one case, from beneath a roost. Feces samples were taken from six species of bats: Micronycteris megalotis (Gray, 1842), Mimon bennettii (Gray, 1838), Furipterus horrens (F. Cuvier, 1828), Myotis riparius Handley, 1960, Myotis ruber (E. Geoffroy, 1806) and Histiotus velalus (I. Geoffroy, 1824). To record and describe the frequencies dominating bat echolocation calls, an Anabat II bat detector coupled with an Anabat...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Diet; Echolocation; Foraging behaviour; Southeastern Brazil.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400017

Alimentação de um filhote de bem-te-vi, Pitangus sulphuratus (Linnaeus) (Passeriformes, Tyrannidae), em ambiente urbano
Provedor de dados: 104
Autores: Argel-de-Oliveira,Maria Martha; Curi,Nancy A; Passerini,Tatiana.
The observation of parents feeding a captive fledgling of Great Kiskadee revealed that visitation is more frequent in the first hour after sunrising, with lesscr peaks along the day. The diet supplied consisted mainly of insects (Hymenoptera, Lepidoptera, Coleoptera, Diptera), along with other items as human-made materiais (food scraps, pellets of animal food), lizards (Hemidactylus mabouia), non-identified fruit pulp, gastropods and arachnids (Opiliones). The ability that P. sulphuratus has for identifying food items absent froni more natural habitats and for exploiting resources of unpredictablc spatial and temporal distributions confers the species a dietary flexibility that probably contributes to its efficiency in colonizing urban habitats.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passeriformes; Tyrannidae; Pitangas sulphuratus; Diet; Urban environment.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400027

Foraging behavior and microhabitats used by black lion tamarins, Leontopithecus chrysopygus (Mikan) (Primates, Callitrichidae)
Provedor de dados: 104
Autores: Passos,Fernando de Camargo; Keuroghlian,Alexine.
Foraging in the Black Lion Tamarin (L. chrysopygus Mikan, 1823) was observed in the Caetetus Ecological Station, São Paulo, southeastern Brazil, during 83 days between November 1988 to October 1990. These tamarins use manipulative, specific-site foraging behavior. When searching for animal prey items, they examine a variety of microhabitats (dry palm leaves, twigs, under loose bark, in tree cavities). These microhabitats were spatially dispersed among different forest macrohabitats such as swamp forests and dry forested areas. These data indicated that the prey foraging behavior of L. chrysopygus was quite variable, and they used a wide variety of microhabitats, different of the other lion tamarin species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callitrichidae; Leontopithecus chrysopygus; Black lion tamarin; Animal prey; Foraging behavior; Diet; Microhabitats.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000600022

Boneless yield of carcass of feedlot-finished young Bos indicus L. bulls
Provedor de dados: 109
Autores: Dirceu-Pazdiora,Raul; Resende,Flávio Dutra-de; Faria,Marcelo Henrique de; Rezende-Siqueira,Gustavo; Linhares-Sampaio,Ricardo; Souza-Almeida,Geraldo Benedito de; Caetano-Nunes-Pazdiora,Bruna Rafaela.
Abstract The aim of this study was to evaluate the boneless yield of the carcass of 64 feedlot-finished young Nellore bulls fed diets containing coated or uncoated urea and slaughtered at five body weights (350, 455, 485, 555, and 580 kg). A completely randomized design with a 5 χ 2 factorial arrangement was used. No significant effect was detected for the interaction between slaughter weight and diet; therefore, the variables were analyzed separately, compared by polynomial contrasts and the F test, respectively. The absolute weights of the primal cuts from the fore- and hind-quarter increased linearly as the slaughter weight of the animals increased. Increasing slaughter weights elevated the percentage of rump cap in the pistola hindquarter as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal products; Cattle; Meat; Prime cuts; Nellore breed; Diet; Minimum weight; Optigen®.
Ano: 2018
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200339

Reproductive and feeding biology of the common lancehead Bothrops atrox (Serpentes, Viperidae) from central and southwestern Brazilian Amazonia
Provedor de dados: 36
Autores: BISNETO,Pedro Ferreira; KAEFER,Igor Luis.
ABSTRACT The pitviper Bothrops atrox is a widely distributed and medically important snake in Amazonia. Given that the reproductive and feeding biology of snakes varies geographically, we aimed to characterize the natural history of individuals from the central and southwestern portions of the biome. We analyzed museum-preserved specimens collected in the region between the metropolitan areas of the Brazilian cities of Manaus and Porto Velho. We took morphometric measurements and performed the analysis of gonads and digestive tracts of 109 individuals. Females attain sexual maturity with larger body sizes. Adults of the species show pronounced sexual dimorphism in body size, with females being larger. The reproductive cycle, especially in males, appears to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Natural history; Neotropics; Reproduction.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200105

The food spectrum of the cardinal - tetra (Paracheirodon axelrodi, Characidae) in its natural habitat
Provedor de dados: 36
Autores: Walker,Ilse.
The cardinal tetra (Paracheirodon axelrodi) is the most intensively commercialized ornamental fish from the Rio Negro Basin (Amazonas State, Brasil). Analysis of the stomach and gut contents of fish caught in their natural habitats show conclusively that the cardinal is essentially a predator, feeding on the mesofauna that adheres to submerged litter, roots and waterplants. Microcrustacea and chironomid larvae (Diptera) were the most frequently ingested prey, while algae intake was relatively infrequent. It is argued that the relatively small size of the cardinals captured in their natural habitat is due to the annual migrations imposed by the inundation cycles, rather than to resource limitation, because it is known from earlier investigations of similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rio Negro; Cardinal; Diet.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000100009

Hundred legs good, two fangs better: adult centipede (Scolopendridae) devoured by a juvenile Amazon lancehead, Bothrops atrox (Viperidae)
Provedor de dados: 36
Autores: SILVA,Karina Maria Pereira da; ALMEIDA-SANTOS,Selma Maria de; BERTANI,Rogério.
ABSTRACT Centipedes are part of the diet of several snake species of the genus Bothrops. However, reports on predation of centipedes by snakes are normally incomplete, and important data for natural history studies as the species identification and size of the prey are rarely published. The aim of this work was to report the presence of the centipede Scolopendra viridicornis in the digestive tract of the Amazon pit viper B. atrox. The snake specimen is an immature female from Aripuanã, state of Mato Grosso, Brazil, having a 623 mm snout-vent length. The centipede is an adult Scolopendra viridicornis, estimated to be 190 mm long, and found in the snake's stomach. The success in preying on this large and potentially dangerous centipede could be explained by...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Diet; Ectothermic prey; Scolopendra.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200171

Predation of Boana boans (Anura, Hylidae) by an opportunistic frugivorous primate
Provedor de dados: 36
Autores: CAVALCANTE,Thiago; SIMÕES,Pedro Ivo; MOURTHE,Italo.
ABSTRACT Although relatively common among omnivorous primates, anurophagy is still poorly documented in frugivorous species. Here we report the predation of a giant gladiator treefrog (Boana boans) by a large arboreal frugivore, the gray woolly monkey (Lagothrix lagotricha cana). The predation event occurred in a stretch of riparian forest located in a fragmented region in Cacoal, Rondônia state, in southwestern Brazilian Amazonia. Anurans can be a profitable, non-contested, and relatively easily acquired alternative resource for gray woolly monkeys, helping to fulfill their demand for protein, especially in periods of fruit scarcity. This new record broadens the knowledge on the natural history and predators of the giant gladiator frog.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Amazonia; Anuran predation; Anurophagy; Diet; Lagothrix lagotricha cana.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400307

Feeding ecology of Serrasalmus gouldingi (Characiformes: Serrasalmidae) in the lower Anapu River region, Eastern Amazon, Brazil
Provedor de dados: 36
Autores: PRUDENTE,Bruno da S.; CARNEIRO-MARINHO,Pedro; VALENTE,Roberta de M.; MONTAG,Luciano F. de A.
Abstract Studies on feeding ecology of fishes are important to understand the relationship between species and environmental seasonal variations. In tropical rivers, these relationships are mainly modeled by hydrological patterns. Thereby, this study aimed to assess the influence of fluviometric variation and life stage (juveniles and adults) in the feeding ecology of Serrasalmus gouldingi in the lower Anapu River region, located in Eastern Amazon, Pará, Brazil. Specimens were collected bimonthly, considering four different hydrological periods. We assessed the diet composition, feeding intensity and niche breadth of the species. Thirty-two dietary items were identified and grouped into ten categories. A total of 279 stomachs were analyzed, showing a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon basin; Diet; Flood pulse; Niche breadth; Repletion index.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000300259

PREDATORY INTERACTION BETWEEN TWO ANURAN SPECIES WITH Thamnodynastes chaquensis (COLUBRIDAE) IN THE BRAZILIAN CERRADO
Provedor de dados: 37
Autores: DIAS-SILVA,Fernanda; Murillo Peixoto COUTO,Rodney; Maiara Cabrera,MIGUEL; ADAMS,Guilherme Brad; BÜHLER,Daniel; PEREIRA,Elvis Almeida.
ABSTRACT Although predatory events are uncommon to be recorded in nature, these data are important tools for understanding prey-predator interaction of the involved species. Snakes of genus Thamnodynastes are known for having an anuran diet, including some species of hylid frogs in their diet. Despite this, this pattern does not include T. chaquensis since there are no records on predation or trophic interaction with hylid frogs. Here, we report the first predatory interaction between T. chaquensis and two hylid frogs in Brazilian Cerrado. The first predation event with treefrog Boana caiapo occurred with success but, the second with B. albopunctata did not. Connecting trophic links within an ecosystem requires in-depth knowledge of its species and their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anurans; Diet; Reptile; Predator-prey.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000200273

DIET OF DIRECT-DEVELOPING FROGS (ANURA: CRAUGASTORIDAE: Pristimantis) FROM THE ANDES OF WESTERN COLOMBIA
Provedor de dados: 37
Autores: GARCIA-R,Juan Carlos; POSSO-GÓMEZ,Carmen Elisa; CÁRDENAS-HENAO,Heiber.
We studied the diet of 15 montane frog species of the genus Pristimantis (Craugastoridae) from the Andes of Western Colombia to determine the diet range, breadth of niche and overlap among species. We identified 499 prey items from stomach and intestinal contents of 154 specimens. Prey items were included in 74 different categories. The most common 15 prey categories accounted for 65 % of all frogs' diet. The invertebrate families Isotomidae, Chironomidae, Formicidae, and Tipulidae were the most abundant categories and accounted for 32 % of the frogs' diet. Ten of the 15 frog species were found with at least one item of Araneae. Coleoptera and Tipulidae were found in nine frog species, and Acari and Carabidae in eight frog species. In general, beetles were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colombia; Diet; Niche breadth; Niche overlap; Pristimantis; Western Cordillera.
Ano: 2015
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100009

Pegada hídrica dos suínos abatidos nos Estados da Região Centro-Sul do Brasil - doi: 10.4025/actascianimsci.v33i3.9924
Provedor de dados: 2
Autores: Palhares, Júlio César Pascale; EMBRAPA.
O objetivo do trabalho foi calcular a pegada hídrica dos suínos abatidos no Brasil em 2008 em cada um dos Estados da Região Centro-Sul do país. O cálculo da pegada considerou a água consumida na produção de grãos (milho e soja), água de dessedentação e água utilizada na limpeza das instalações. O Estado que apresentou a maior pegada hídrica foi o Rio Grande do Sul (2,702 km3), seguido de Santa Catarina (2,401 km3) e Paraná (1,089 km3). Os Estados com as menores pegadas foram Rio de Janeiro (0,00215 km3), Distrito Federal (0,0354 km3) e Espírito Santo (0,0719 km3). Os Estados com baixas produtividades para as culturas de milho e soja apresentaram pegadas hídricas maiores. O cálculo da pegada demonstrou que a gestão hídrica da cadeia produtiva de suínos não...
Tipo: Método de avaliação de impacto ambiental
Palavras-chave: Ciências Agrárias Água; Crescimento-terminação; Dieta Produção Animal Water; Growing-finishing; Diet.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9924

The effect of feed restriction on the fat profile of Santa Inês lamb meat
Provedor de dados: 2
Autores: Madruga, Marta Suely; Kênia Alves Bezerra, Taliana; Conceição Dantas Guerra, Ingrid; Batista, Ana Sancha Malveira; Marcos de Azevedo Silva, Aderbal; Fernandes, Rafaella de Paula Paseto.
Consumers today are increasingly more demanding regarding their food, seeking healthier and better quality products, and in this context animal nutrition plays a key role. The meat composition can be altered by animal feed itself, being that lipid profile may directly contribute to consumer health, reducing the predisposition of developing cardiovascular diseases, main cause of mortality in the world. Thus, the aim of this study was to assess the effect of dietary feed restriction in Santa Inês lambs on their intramuscular, intermuscular, and subcutaneous fat profile, fat profile of the longissimus thoracis et lumborum (LTL) muscle, and the total meat lipids and cholesterol. Three groups of lambs were subjected to diets: without restriction (WR), and 30...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Northeast cholesterol diet fatty acids Longissimus thoracis et lumborum nutrition Brazilian Northeast; Cholesterol; Diet; Fatty acids; Longissimus thoracis et lumborum; Nutrition.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48229

Digestible lysine levels for laying hens and their effects on egg quality
Provedor de dados: 2
Autores: Santos, Tiago Antônio dos; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais,; Geraldo, Adriano; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais; Machado, Luiz Carlos; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais; Pelícia, Kléber; Universidade José do Rosário Vellano; Simão, Sérgio Domingos; Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais; Vieira Filho, Javer Alves; Universidade Estadual Paulista.
Egg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 experimental plots. A completely randomized design with six treatments and seven replicates was employed in four production cycles of 28 days each. Treatments comprised Control - 16.92% CP; 0.750% digestible lysine. Treatments 1 to 5, with CP levels 14% and digestible lysine levels 0.600, 0.675, 0.750, 0.825 and 0.900% respectively. Levels of Treatments 1 and 2 (0.546 and 0.640% digestible Met + Cys / 0.600 and 0.675% digestible lysine) provided smaller egg size....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.03.00-1 ideal protein; Digestible amino acids; Isa Brown; Requirement; Diet.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21823

Fish trophic structure in a first order stream of the Iguatemi River basin, Upper Paraná River, Brazil
Provedor de dados: 3
Autores: Lopes, Evaneide Nogueira; Fedatto Abelha, Milza Celi; Batista-Silva, Valéria Flávia; Kashiwaqui, Elaine Antoniassi Luiz; Bailly, Dayani.
We described the spatial distribution of fish trophic groups in the Água Boa Stream, MS, Brazil. Specimens were caught using electrofishing in the upper, intermediate and lower stretches of the stream, between March and November 2008. We analyzed 415 stomach contents of 24 species. Detritus/sediment and aquatic invertebrates were the main exploited resources. Ordination analysis categorized the species in six trophic groups. Aquatic invertivores showed the highest richness (10 species), followed by detritivores (08 species), omnivores (03 species), terrestrial invertivores (03 species), algivores (02 species) and herbivore (01 species). Three trophic groups occurred in the upper stretch, six in the intermediate and five in the lower. Detritivores,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Trophic group; Ichthyofauna; Freshwater 2.05.00.00-9 dieta  grupo trófico  ictiofauna  água doce Ecologia.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31515

Bats (Chiroptera, Phyllostomidae) in the urbanized area in South of Brazil - doi: 10.4025/actascibiolsci.v34i2.8783
Provedor de dados: 3
Autores: Prone, Bruno; Universidade Estadual de Maringá; Zanon, Cibele Maria Vianna; Universidade Estadual de Maringá; Benedito, Evanilde; Universidade Estadual de Maringá.
The present study aimed to inventory of bats species present in an urban area, located within the main campus of the State University of Maringá, northwestern Paraná State, and to present data on the diet, reproduction, and activity times of the captured species. Collections were performed monthly, between September 2007 and August 2008, and 377 individuals were captured, belonging to four species from the Phyllostomidae family: Artibeus lituratus (90%), Platyrrhinus lineatus (6.4%), Sturnira lilium (2.4%), and Carollia perspicillata (1.3%). The types of fruit ingested consisted especially of Cecropiaceae, Moraceae, Myrtaceae, Piperaceae and Solanaceae. Among the captured exemplars, 51% were female and 49% male. No pregnant females of A. lituratus or males...
Palavras-chave: Diversity; Capture time; Diet; Reproduction 2.05.00.00-9    Ecologia.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8783

Food partitioning between sympatric species of Serrapinnus (Osteichthyes, Cheirodontinae) in a tropical stream - doi: 10.4025/actascibiolsci.v33i2.7593
Provedor de dados: 3
Autores: Alves, Gustavo Henrique Zaia; Universidade Estadual de Maringá; Tófoli, Raffael Marcos; Universidade Estadual de Maringá; Novakowski, Gisele Caroline; Universidade Estadual de Maringá; Hahn, Norma Segatti; UEM.
This study investigated the feeding habits of Serrapinnus microdon and S. calliurus and possible seasonal differences (rainy and dry seasons) in the utilization of food. The fish were collected monthly in Cancela stream, in the basin of the Manso/Cuiabá rivers in the State of Mato Grosso, from March 2003 to February 2004. Both species preferentially consumed resources of autochthonous origin, independently of the season. The diet of S. microdon was basically composed by immature forms of aquatic insects, with Chironomidae and Ephemeroptera predominating during the entire study period, thus showing a restricted diet (Ba = 0.27 in the rainy season, and 0.29 in the dry season). For S. calliurus, aquatic insects (especially Ephemeroptera) were equally...
Palavras-chave: Serrapinnus; Diet; Coexistence; Stream Serrapinnus; Diet; Coexistence; Stream.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7593

Radiographic anatomy aspects and gastrointestinal transit time in Podocnemis unifilis troschel, 1848 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i4.5082
Provedor de dados: 3
Autores: Santos, André Luiz Quagliatto; Universidade Federal de Uberlândia; Ferreira, Carlos Gomes; Universidade Federal de Uberlândia; Pinto, José Guilherme Souza; Fundação de Ensino Superior de Rio Verde; Lima, Cirilo Antônio Paula; Universidade Federal de Uberlândia; Vieira, Lucélia Gonçalves; Universidade Federal de Uberlândia; Brito, Fernando Moraes Machado; Universidade Federal de Uberlândia.
The present study analyzed the radiographic anatomy and determined the gastrointestinal transit time of Podocnemis unifilis. We used ten animals belonging to LAPAS from the Federal University of Uberlândia, Uberlândia, Minas Gerais State, Brazil. The animals were orally fed with a barium sulphate suspension at 10 mL kg-1 mixed with mineral oil, at a ratio of 70% of barium sulphate for 30% of mineral oil. Afterwards, the animals underwent radiography in a dorsum ventriloquoal position, with the X-ray device adjusted at 72 Kv and 200 mA, in time intervals to follow the permanency of contrast in the organism. Five minutes after the contrast was supplied, the stomach was filled. After sixteen hours the contrast advanced to the small intestine. In 48 hours, the...
Palavras-chave: 2.06.04.02-5 Radiology; Digestive tract; Diet; Chelonian Anatomia Animal2 Radiology; Digestive tract; Diet; Chelonian.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5082

Food resource used by small-sized fish in macrophyte patches in ponds of the upper Paraná river floodplain - DOI: 10.4025/actascibiolsci.v31i2.3266
Provedor de dados: 3
Autores: Crippa, Valdirene Esgarbosa Loureiro; UEM; Hahn, Norma Segatti; UEM; Fugi, Rosemara; UEM.
This study analyzed the diet of seven small-sized fish species (Characidae) and assessed their use of food resources. The species were collected in 2001 from nine ponds with aquatic macrophytes in the Paraná river floodplain, Brazil. Astyanax altiparanae, Astyanax fasciatus, Hemigrammus marginatus and Moenkhausia intermédia consumed aquatic and terrestrial insects. Bryconomericus stramineus and Moenkhausia sanctaefilomenae co-dominantly ate insects and microcrustaceans, whereas Hyphessobrycon eques had microcrustaceans as their most important food resource. Overlapping feeding coefficients varied from intermediate (0.4-0.6) to low (&lt; 0.4) for the majority of the combination pairs. A high mean intestinal length was verified for A. altiparanae and A....
Palavras-chave: 2.05.00.00-9 Ecologia Astyanax; Bryconamericus; Hemigrammus; Hyphessobrycon; Moenkhausia; Diet Aqüicultura Astyanax; Bryconamericus; Hemigrammus; Hyphessobrycon; Moenkhausia; Diet.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3266

Feeding strategy of the jundiá Rhamdia quelen (Siluriformes, Heptapteridae) in costal lagoons of southern Brazil - DOI: 10.4025/actascibiolsci.v31i1.335
Provedor de dados: 3
Autores: Kutter, Mateus Tavares; FURG; Bemvenuti, Marlise de Azevedo; FURG; Moresco, Alex; FURG.
Feeding strategy and mouth morphology of ‘jundiá’ in costal lagoons of south of Rio Grande do Sul were studied. Gut contend of 189 individuals were collected from 2002 to 2004 and analysed according Amundsen. Fishes and crustaceans were the feeding items more frequent in the diet. Mollusk, insects and plants had low FO%. Season variation in diet showed lower variety of feeding items during summer and higher in winter. The diet vary according to site were irrigation channels showed low FO% for all items. The ‘jundiá’ showed generalist feeding strategy, generally preying on fish and crustaceous. On the description of its feeding apparatus the importance on the capture prey was observed.
Palavras-chave: 2.01.00.00-0    Biologia Geral swamp; Diet; Mouth morphology; Taim.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/335

Tooth Root Size, Chewing Muscle Leverage, and the Biology of Homunculus patagonicus (Primates) from the late early Miocene of Patagonia
Provedor de dados: 41
Autores: Perry,Jonathan M. G.; Kay,Richard F.; Vizcaíno,Sergio F.; Bargo,M. Susana.
Inferences about the diet of Miocene platyrrhine monkeys have relied upon the morphology of the molar teeth, specifically the crests on the molars. Using a library of Micro-CT images of a broad comparative sample of living platyrrhines (callitrichines, cebines, pitheciids and atelids), late early Miocene Homunculus, and the early Miocene Tremacebus and Dolichocebus, we extend these inferences by examining the surface areas of the tooth roots, anchor points for the periodontal ligaments. From muscle scars on the skull, we estimate the mechanical leverage of the chewing muscles at bite points from the canine to the last molar. Extant platyrrhines that gouge bark to obtain exudates do not have especially large canine roots or anterior premolar roots compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Primates; Platyrrhini; Homunculus; Miocene; Teeth; Diet.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142010000300007

Dental occlusal surface area in relation to body mass, food habits and other biological features in fossil xenarthrans
Provedor de dados: 41
Autores: Vizcaíno,Sergio F.; Bargo,M. Susana; Cassini,Guillermo H.
The Xenarthra includes the most intriguing mammals from the Cenozoic of South America: the glyptodonts (Cingulata) and the ground sloths (Tardigrada). Their masticatory apparatuses are diverse and peculiar, with a strongly reduced, hypselodont dentition that lacks enamel and displays different degrees of lobation. The goal of this study is to investigate the relationship between dental occlusal surface area (OSA) and diet, and other physiological factors in fossil xenarthrans. Over one hundred and fifty specimens, including living herbivorous epitherians and both extinct and living xenarthrans, were measured and photographed, and their OSA estimated and plotted against body mass. For most fossil xenarthrans OSA is smaller than expected for extant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mammalia; Xenarthra; Dental Occlusal Surface Area; Body mass; Diet; Physiology.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000100002

Feeding habits of the leaf litter frog Haddadus binotatus (Anura, Craugastoridae) from two Atlantic Forest areas in southeastern Brazil
Provedor de dados: 42
Autores: COCO,LÍVIA; BORGES JÚNIOR,VITOR N.T.; FUSINATTO,LUCIANA A.; KIEFER,MARA C.; OLIVEIRA,JANE C.F.; ARAUJO,PABLO G.; COSTA,BIANCA M.; SLUYS,MONIQUE VAN; ROCHA,CARLOS F.D.
Haddadus binotatus is an endemic anuran of the Brazilian Atlantic Forest and currently, there is no information about the diet of this species. We analyzed the diet of two populations of this anuran in two states in southeast Brazil. Samplings were carried out in 2004 in the state of Rio de Janeiro and in 2009 and 2010 in the state of Espírito Santo.Haddadus binotatus presented a rich diet composition, preying 19 prey types. Orthoptera, Coleoptera, and Blattodea were the most important preys in the Rio de Janeiro population, and Orthoptera, Araneae and Hemiptera were the most important in the Espírito Santo population. The diet composition differed numerically between the two localities, but not in terms of volume, which can reflect local differences in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arthropods; Diet; Generalist feeder; Sexual dimorphism.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100239

Diet and niche breadth and overlap in fish communities within the area affected by an Amazonian reservoir (Amapá, Brazil)
Provedor de dados: 42
Autores: SÁ-OLIVEIRA,JÚLIO C.; ANGELINI,RONALDO; ISAAC-NAHUM,VICTORIA J.
We investigated the niche breadth and overlap of the fish species occurring in four environments affected by the Coaracy Nunes reservoir, in the Amapá Brazilian State. Seasonal samples of fishes were taken using a standard configuration of gillnets, as well as dragnets, lines, and cast­nets. Five hundred and forty stomach contents, representing 47 fish species were analyzed and quantified. Niche breadth and overlap were estimated using indexes of Levins and Pianka, respectively, while interspecific competition was evaluated using a null model (RA3). ANOVA and the Kruskal­Wallis test were used, respectively, to evaluate differences in niche breadth and overlap between areas. The data indicate that the majority of the fish species belong to the piscivore,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Competition; Neotropical reservoir; Diet; Species coexistence.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100383

General aspects of muscle glucose uptake
Provedor de dados: 42
Autores: ALVIM,RAFAEL O.; CHEUHEN,MARCEL R.; MACHADO,SILMARA R.; SOUSA,ANDRÉ GUSTAVO P.; SANTOS,PAULO C.J.L.
Glucose uptake in peripheral tissues is dependent on the translocation of GLUT4 glucose transporters to the plasma membrane. Studies have shown the existence of two major signaling pathways that lead to the translocation of GLUT4. The first, and widely investigated, is the insulin activated signaling pathway through insulin receptor substrate-1 and phosphatidylinositol 3-kinase. The second is the insulin-independent signaling pathway, which is activated by contractions. Individuals with type 2 diabetes mellitus have reduced insulin-stimulated glucose uptake in skeletal muscle due to the phenomenon of insulin resistance. However, those individuals have normal glucose uptake during exercise. In this context, physical exercise is one of the most important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diabetes; Exercise; Glucose uptake; Diet; Hypoglycemic drugs.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100351

Feeding and larval growth of an exotic freshwater prawn Macrobrachium equidens (Decapoda: Palaemonidae), from Northeastern Pará, Amazon Region
Provedor de dados: 42
Autores: GOMES,JEAN N.; ABRUNHOSA,FERNANDO A.; COSTA,ANNE K.; MACIEL,CRISTIANA R.
In the present study, we carried out experiments on the diet of the freshwater prawn Macrobrachium equidens. We tested which type of food and which density of food is suitable for larval development. For the experiment on the type of food, eight treatments were carried out: (I) starvation, (AL) microalgae, (RO) rotifers, (AN) Artemia, (RO + AN) rotifers + Artemia, (AL + RO) microalgae + rotifers, (AL + AN) microalgae + Artemia, (AL + RO + AN) microalgae + rotifers + Artemia. For the experiment on the density of food, we used the type of food, which had resulted in a high survival rate in the previous experiment. Three treatments were carried out: 4, 8 and 16 Artemia nauplii /mL. The rate of feeding during larval development was observed. The survival,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palaemonidae; Diet; Food preference; Live food.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301525

Swimming exercise changed the collagen synthesis and calcification in calcaneal tendons of mice
Provedor de dados: 42
Autores: CARVALHO,ANGELA A. M.; MOURA,FRANCYELLE B. R. DE; NOGUEIRA,PEDRO AUGUSTO S.; GONÇALVES,ALINE MARIA N.; ARAÚJO,FERNANDA A.; ZANON,RENATA G.; TOMIOSSO,TATIANA CARLA.
Abstract  Obesity is characterized by the excess of body fat and, therefore, may cause musculoskeletal alterations that can negatively influence the tendons. Such overweight-influenced alterations are exercise sensitive though. Morphological and biochemical alterations were reported in the calcaneal tendon of mice submitted to a lipid-rich diets along with practicing exercises, with the following groups: normal diet without exercise (ND), normal diet with exercise (NDex), lipid-rich diet without exercise (LD), lipid-rich diet without exercise (LDex). The calcaneal tendons were removed and subjected to histological and biochemical analysis. Layers of the tissue were stained with Hematoxylin and Eosin, Picrosirius Red and Von Kossa while a protein dosage was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Hematoxylin-eosin; Obesity; Tendon; Von Kossa.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100909

Diet of the chola guitarfish, Rhinobatos percellens (Rhinobatidae), in the Paranaguá Estuarine complex
Provedor de dados: 42
Autores: Carmo,Wanessa P.D. do; Bornatowski,Hugo; Oliveira,Elton C.; Fávaro,Luís L.
The chola guitarfish, Rhinobatos percellens, is one of the most-captured batoids on the Brazilian coast, and an important predator of benthic community. Stomachs from R. percellens were sampled in the Paranaguá estuarine complex (March/2006 to March/2007 and October/2008 to September/2009). The stomachs obtained were used for describing the diet of R. percellens, and verifying if there are seasonal and ontogenetic differences in their feeding into the estuarine area. The general analysis showed a specialized diet with a predominance of three species in food contents: Leptochela serratorbita, Caridea remains and Ogyrides alphaerostris. Ontogenetic and seasonal analysis did not reveal significant differences in the food consumption. These data reveal that R....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasmobranchii; Rhinobatidae; Diet; Especialist; Caridea; Estuary.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200721

Feeding ecology of the Neotropical otter Lontra longicaudis in the Lower Arroio Grande River, southern Brazil
Provedor de dados: 42
Autores: Souza,Kleisson S.; Bastazini,Vinicius A.G.; Colares,Elton P.
The present study was based on the analysis of spraints (n = 294) collected between December 2005 and November 2007. The importance of each type of prey was determined by absolute and relative frequency. Niche breadth was also estimated. The results were reported as mean (± SD) of relative frequencies. Fish were the main prey found in spraints (57.8 ± 7.0%). Fish from Callichthyidae family were the main prey, followed by Cichlidae, the species Hoplias malabaricus and the family Characidae. The frequencies of other fish and taxa were lower than 13.9% (absolute frequency) and 5.6% (relative frequency). Despite significant seasonal variations, (P = 0.001), niche breadth values were low in all seasons (0.39 ± 0.11). Therefore, Lontra longicaudis presented a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Neotropical otter; Niche breadth; Seazonal; Southern Brazil.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100285

Ecology of the bromeligenous frog Phyllodytes luteolus (Anura, Hylidae) from three restinga remnants across Brazil's coast
Provedor de dados: 42
Autores: Motta-Tavares,Tatiana; Maia-Carneiro,Thiago; Dantas,Leonardo F.; Sluys,Monique Van; Hatano,Fábio H.; Vrcibradic,Davor; Rocha,Carlos F.D.
In this study, we analyzed diet, sexual dimorphism and bromeliad use in three populations of the hylid frog Phyllodytes luteolus from restinga habitats along the Brazilian coast. We found 13 arthropods categories in 161 stomachs. Ants and termites were the dominant prey items. The similar trophic niche across populations suggests this species has a conservative diet. We found sexual dimorphism regarding body size and jaw width. We recordedP. luteolus in five bromeliad species, but predominantly inAechmeablanchetiana (35.6% of individuals recorded). We recorded solitary individuals in 44% of occupied bromeliads, and never found two males sharing the same bromeliad. The data is suggestive that populations ofP. luteolus has a conservative diet independent of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Bromeliad; Diet; Sexual dimorphism; Territorial behavior.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100093

Macro and micro minerals: are frozen fruits a good source?
Provedor de dados: 42
Autores: Spada,Patricia D.S.; Bortolin,Giovana V.; Prá,Daniel; Santos,Carla E.I.; Dias,Johnny F.; Henriques,João A.P.; Salvador,Mirian.
Fruits are rich in minerals, which are essential for a wide variety of metabolic and physiologic processes in the human body. The use of frozen fruits has greatly spread in the last years not only in the preparation of juices, but also as raw material for yogurts, candies, cookies, cakes, ice creams, and children's food. However, up to now there is no data about the mineral profile of frozen fruits. This is the first database to quantify the levels of minerals in 23 samples of frozen fruits, including the most used around the world and some native fruits from the Amazon rainforest in Brazil. Considering the Dietary Reference Intakes, 100g of frozen fruits can provide 0.2 to 2.8% of macro and 2.5 to 100% of microminerals for adults (31-50 years old)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Dietary recommendations; Dietary Reference Intakes; Frozen fruits; Minerals.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400008

Feeding habits of coypu (Myocastor coypus Molina 1978) in the wetlands of the Southern region of Brazil
Provedor de dados: 42
Autores: Colares,Ioni G.; Oliveira,Raquel N. V.; Liveira,Rafael M.; Colares,Elton P.
The aim of this study was to determine the diet of coypu (Myocastor coypus) in two areas (Santa Isabel do Sul wetlands - Area 1, and Santa Marta Farm - Area 2) in the Southern region of Brazil, using microhistological analyses of feces. Twenty-four plant species were identified from collected feces samples. Among the identified species, nine are common in the animals' diet in both areas; the presence of Oriza sativa was not detected in any of the samples. Among the identified species, 84% and 54% of the coypu's diet from Areas 1 and 2, respectively, are aquatic plants. Poaceae family was most common, being found in 82% of the samples from both areas. Paspalum disthichum (Area 1) and Panicum tricholaenoides (Area 2) were the most frequent species on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coypu; Diet; Food selection; Herbivore.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300015

Diet and nematode infection in Proceratoprhys boiei (Anura: Cycloramphidae) from two Atlantic rainforest remnants in Southeastern Brazil
Provedor de dados: 42
Autores: Klaion,Thaís; Almeida-gomes,Mauricio; Tavares,Luiz E. R.; Rocha,Carlos F. D.; Sluys,Monique Van.
Proceratophrys boiei is an endemic cycloramphid anuran inhabiting the leaf litter of Atlantic rainforests in Southeastern Brazil. We analyzed the whole digestive tract of 38 individuals of Proceratophrys boiei collected in two Atlantic Rainforest areas in the state of Rio de Janeiro, Brazil, to study the diet composition and the helminth fauna associated with this species. The main food items in P. boiei's diet were Coleoptera, Orthoptera and Blattaria. Five nematode species were found: Aplectana delirae, Cosmocerca parva, Oxyascaris oxyascaris, Physaloptera sp. (larval stage only) and an unidentified nematode. Overall prevalence was 71% and mean infection intensity was 7.3 ± 5.8 neatodes per individual.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anura; Proceratoprhys; Diet; Endoparasitis; Neotropics.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400017

Feeding ecology of Erythrolamprus jaegeri jaegeri (Günter, 1858) and Erythrolamprus poecilogyrus sublineatus (Cope, 1860) in the coastal zone of Subtropical Brazil (Serpentes, Dipsadidae)
Provedor de dados: 42
Autores: CORRÊA,DANIELE N.; QUINTELA,FERNANDO M.; LOEBMANN,DANIEL.
ABSTRACT The snakes Erythrolamprus jaegeri jaegeri and Erythrolamprus poecilogyrus sublineatus are sympatric and syntopic in the coastal region of southern Brazil. Herein, we analyzed the diet composition to evaluate the niche breadth and the prey selection by both species. We examined 192 specimens, and analysis of stomach contents revealed that both species predominantly consume anurans. However, the diet of E. j. jaegeri consists mainly of fish and amphibians, whereas that of E. p. sublineatus is broader, including fish, amphibians, reptiles and mammals. The Standardized Levins Index presented lower values for E. j. jaegeri (BA = 0.17) than for E. p. sublineatus (BA = 0.61), evidencing specialist and generalist strategies for each species, respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Ophidians; Prey; Size; Niche.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100293

DNA damage in children and adolescents with cardiovascular disease risk factors
Provedor de dados: 42
Autores: Kliemann,Mariele; Prá,Daniel; Müller,Luiza L.; Hermes,Liziane; Horta,Jorge A.; Reckziegel,Miriam B.; Burgos,Miria S.; Maluf,Sharbel W.; Franke,Silvia I.R.; Silva,Juliana da.
The risk of developing cardiovascular disease (CVD) is related to lifestyle (e.g. diet, physical activity and smoking) as well as to genetic factors. This study aimed at evaluating the association between CVD risk factors and DNA damage levels in children and adolescents. Anthropometry, diet and serum CVD risk factors were evaluated by standard procedures. DNA damage levels were accessed by the comet assay (Single cell gel electrophoresis; SCGE) and cytokinesis-blocked micronucleus (CBMN) assays in leukocytes. A total of 34 children and adolescents selected from a population sample were divided into three groups according to their level of CVD risk. Moderate and high CVD risk subjects showed significantly higher body fat and serum CVD risk markers than low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardiovascular diseases; Micronucleus test; Comet assay; Diet; Anthropometry; Child; Adolescent.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300025

Megalotomus parvus West. (Hemiptera: Alydidae): inseto adequado para experimentação e didática entomológica
Provedor de dados: 44
Autores: Ventura,Maurício U.; Panizzi,Antônio R.
Megalotomus parvus West. is a neotropical alydid very common and abundant in northern Paraná State (23º 11' S latitude, 51º 11' W longitude). A colony of this bug was maintained in the laboratory for successive generations. Nymphs and adults were reared in plastic boxes (12,0 x 12, 0 x 3,8 cm) lined with filter paper, using mature seeds of pigeon pea, Cajanus cajan plus water (imbibed cotton). The easiness of which M. parvus was reared in the laboratory allow to suggest the use of this bug for research and teaching purposes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Heteroptera; Rearing; Diet.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000300026

Are levels of digestive enzyme activity related to the natural diet in passerine birds?
Provedor de dados: 48
Autores: Ramírez-Otárola,Natalia; Sabat,Pablo.
Digestive capabilities, such as the rates nutrient hydrolysis and absorption, may affect energy intake and ultimately feeding behavior. In birds, a high diversity in gut biochemical capabilities seems to support the existence of a correlation between the morphology and physiology of the intestinal tract and chemical features of the natural diet. However, studies correlating the activity of digestive enzymes and the feeding habits at an evolutionary scale are scarce. We investigated the effect of dietary habits on the digestive physiological characteristics of eight species of passerine birds from Central Chile. The Order Passeriformes is a speciose group with a broad dietary spectrum that includes omnivorous, granivorous and insectivorous species. We...
Tipo: Journal article
Palavras-chave: Birds; Diet; Intestinal enzymes; Passeriformes; Food habits; Adaptation.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000100011

Diet and Endothelial Function
Provedor de dados: 48
Autores: CUEVAS,ADA M; GERMAIN,ALFREDO M.
Endothelial dysfunction is one of the earliest events in atherogenesis. A consequence of endothelial damage is a lower availability of nitric oxide (NO), the most potent endogenous vasodilator. NO inhibits platelet aggregation, smooth muscle cell proliferation and adhesion of monocytes to endothelial cells. Endothelial dysfunction is present in patients with cardiovascular disease and/or coronary risk factors, such as hypertension, dyslipidemia, diabetes, smoking or hyperhomocysteinemia. At present, soluble markers and high resolution ultrasound of the brachial artery, have provided simple tools for the study of endothelial function and the effects of several interventions. It has been demonstrated that dietary factors may induce significant changes on...
Tipo: Journal article
Palavras-chave: Diet; Endothelial function; Nitric oxide; Vascular reactivity.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000200008

Misclassification probability as obese or lean in hypercaloric and normocaloric diet
Provedor de dados: 48
Autores: NASCIMENTO,ANDRÉ F; SUGIZAKI,MÁRIO M; LEOPOLDO,ANDRÉ S; LIMA-LEOPOLDO,ANA P; NOGUEIRA,CÉLIA R; NOVELLI,ETHEL L. B; PADOVANI,CARLOS R; CICOGNA,ANTONIO C.
The aim of the present study was to determine the classification error probabilities, as lean or obese, in hypercaloric diet-induced obesity, which depends on the variable used to characterize animal obesity. In addition, the misclassification probabilities in animáis submitted to normocaloric diet were also evaluated. Male Wistar rats were randomly distributed into two groups: normal diet (ND; n=31; 3,5 Kcal/g) and hypercaloric diet (HD; n=31; 4,6 Kcal/g). The ND group received commercial Labina rat feed and HD animáis a cycle of five hypercaloric diets for a 14-week period. The variables analysed were body weight, body composition, body weight to length ratio, Lee Índex, body mass Índex and misclassification probability. A 5% significance level was used....
Tipo: Journal article
Palavras-chave: Diet; Diet-induced obesity; Hypercaloric diet; Misclassification; Rats.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000300002

Lucilia sericata strain from Colombia: Experimental Colonization, Life Tables and Evaluation of Two Artifcial Diets of the Blowfy Lucilia sericata (Meigen) (Diptera: Calliphoridae), Bogotá, Colombia Strain
Provedor de dados: 48
Autores: Rueda,Luis C; Ortega,Luis G; Segura,Nidya A; Acero,Víctor M; Bello,Felio.
The objective of this work was to establish, under experimental laboratory conditions, a colony of Lucilia sericata, Bogotá-Colombia strain, to build life tables and evaluate two artifcial diets. This blowfy is frequently used in postmortem interval studies and in injury treatment. The parental adult insects collected in Bogotá were maintained in cages at 22°C±1 average temperature, 60%±5 relative humidity and 12 h photoperiodicity. The blowfies were fed on two artifcial diets that were evaluated over seven continuous generations. Reproductive and population parameters were assessed. The life cycle of the species was expressed in the number of days of the different stages: egg = 0.8±0.1, larvae I = 1.1±0.02, larvae II = 1.94±0.16, larvae III = 3.5±0.54,...
Tipo: Journal article
Palavras-chave: Lucilia sericata; Diet; Fecundity; Life cycle; Life table.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000200008

Distinctive Effects of Red Wine and Diet on Haemostatic Cardiovascular Risk Factors
Provedor de dados: 48
Autores: MEZZANO,DIEGO.
The aim of this study was to compare the effects of Mediterranean-type diet (MD), high-fat diet (HFD), and red wine supplementation on plasma concentration of emergent haemostatic cardiovascular risk factors (HCVRF) and on variables of primary haemostasis (bleeding time, plasma von Willebrand factor and platelet aggregation/secretion). In a controlled prospective intervention study, two groups (21 healthy males each) received either MD or HFD during 90 days. Between days 30-60, both diets were supplemented with 240 ml/day of red wine. After adjusting by baseline values, MD was associated with: lower plasma fibrinogen (p =0.03), factor VIIc (p=0.034) and factor VIIIc (p=0.0057); higher levels of protein S (p=0.013); longer bleeding time (p=0.017); and...
Tipo: Journal article
Palavras-chave: Bleeding time; Cardiovascular risk factors; Diet; Haemostasis; Platelet function; Wine.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000200007

Plant Polyphenol Antioxidants and Oxidative Stress
Provedor de dados: 48
Autores: URQUIAGA,INES; LEIGHTON,FEDERICO.
In recent years there has been a remarkable increment in scientific articles dealing with oxidative stress. Several reasons justify this trend: knowledge about reactive oxygen and nitrogen species metabolism; definition of markers for oxidative damage; evidence linking chronic diseases and oxidative stress; identification of flavonoids and other dietary polyphenol antioxidants present in plant foods as bioactive molecules; and data supporting the idea that health benefits associated with fruits, vegetables and red wine in the diet are probably linked to the polyphenol antioxidants they contain.In this review we examine some of the evidence linking chronic diseases and oxidative stress, the distribution and basic structure of plant polyphenol antioxidants,...
Tipo: Journal article
Palavras-chave: Oxidative stress; Antioxidant; Plant polyphenol; Flavonoid; Chronic diseases; Diet.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602000000200004

Activity, habitat utilization, feeding behaviour, and diet of the sand moray Gymnothorax ocellatus (Anguilliformes, Muraenidae) in the south western Atlantic
Provedor de dados: 49
Autores: Santos,Flávia Borges; Castro,Ricardo M. C.
Activity, habitat utilization, feeding behaviour, and diet of the sand moray Gymnothorax ocellatus (Anguilliformes, Muraenidae) in the South western Atlantic. The sand moray Gymnothorax ocellatus is a nocturnal predator from the western South Atlantic that actively forages on the bottom, preying mostly on crustaceans (mainly shrimps and crabs) and ray-finned fishes, which are located primarily by the sense of smell. The individuals stay stationary during the day, almost always being hidden in individual tunnels dug by animals other than the morays in the muddy sand bottom.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Muraenidae; Gymnothorax ocellatus; Habitat use; Feeding behaviour; Diet.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032003000100003

Diet of Crenicichla britskii (Perciformes: Cichlidae) in a stream of Rio Aguapeí basin, Upper Rio Paraná system, southeastern Brazil
Provedor de dados: 49
Autores: Gibran,Fernando Zaniolo; Ferreira,Katiane Mara; Castro,Ricardo M. C.
We qualitatively studied the gut contents of 20 specimens (36.1-71.3 mm standard length) of the pike cichlid Crenicichla britskii from a 100 m stretched second order stream running inside a small gallery forest in a large pasture area of Rio Aguapeí basin, State of São Paulo, southeastern Brazil. The diet, in terms of per cent composition, constituted primarily of aquatic insects (50%) (mostly immature forms), crustaceans (14.3%), unidentified organic material and filamentous green algae (both with 10.7%), followed by fishes and arachnids (both with 7.1%). Diet analysis indicates that C. britskii is a generalist insectivore with a relatively short digestive tube, which feeds on autochthonous items captured in a broad array of habitats such as in the water...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cichlidae; Crenicichla britskii; Diet; Upper Rio Paraná system; Southeastern Brazil.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032001000100007

Feeding ecology of the maned wolf, Chrysocyon brachyurus (Illiger, 1815) (Mammalia: Canidae), in the Ecological Station of Itirapina, São Paulo state, Brazil
Provedor de dados: 49
Autores: Bueno,Adriana de Arruda; Belentani,Sonia Cristina da Silva; Motta-Junior,José Carlos.
The feeding ecology of the maned wolf (Chrysocyon brachyurus) was studied from 1998 to 2002 in the Ecological Station of Itirapina, São Paulo State, southeastern Brazil, including estimates of prey number and biomass consumption. A total of 325 faecal samples was collected in the area. The species is omnivorous, with a broad diet including 68 species or morphospecies of fruits and animals. Armadillos (Dasypodidae), wolf's fruit (Solanum lycocarpum) and small mammals (mostly Clyomys bishopi) were the bulk of the diet, comprising 72.8 % of the total estimated biomass consumed (185,323.4 g). In terms of frequency of occurrence, on the other hand, only small mammals and other miscella-neous fruits yielded 43.4 % of the total occurrences (N = 1,054). Animal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chrysocyon brachyurus; Maned wolf; Savannah; Grassland; Feeding ecology; Diet; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032002000200007

Food habits of snakes from the RPPN Feliciano Miguel Abdala, an Atlantic Forest fragment of southeastern Brazil
Provedor de dados: 49
Autores: Palmuti,Cesar Felipe de Souza; Cassimiro,José; Bertoluci,Jaime.
We present data on the diet of 15 species of snakes belonging to a community from Reserva Particular do Patrimônio Natural Feliciano Miguel Abdala, an Atlantic Forest fragment of Southeastern Brazil, based on their stomach contents. For 12 items we were able to determine the direction of the ingestion. Most snakes ingested the prey head-first. A cluster analysis was conducted with items grouped as chilopods, mollusks, adult anurans, anuran tadpoles, lizards, amphisbaenians, snakes, and rodents. The phylogenetic influence on diet preferences is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Diet; Feeding ecology; Phylogenetic influence on diet; Atlantic Forest.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000100028

Birds foraging for fruits and insects in shrubby restinga vegetation, southeastern Brazil
Provedor de dados: 49
Autores: Gomes,Verônica Souza da Mota; Loiselle,Bette A.; Alves,Maria Alice S.
Understanding how birds use vegetation to obtain food resources has implications for habitat conservation and management. Restinga is a poorly known and threatened tropical habitat, associated to the Atlantic forest, that could benefit from this kind of information to know which plants can be used and dispersed by birds that can help on the maintenance of this habitat. Frugivorous and insectivorous birds are important components of tropical ecosystems, such as restinga. To provide more information regarding the ecology of restinga, we studied the feeding behavior and spatial use of this vegetation by birds at Restinga de Jurubatiba National Park, southeastern Brazil. We found that feeding behavior was similar to that recorded for the same species in other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Behavior; Diet; Mimus gilvus; Zonotrichia capensis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400001

Habitat use by two species of Hypostomus (Pisces, Loricariidae) in southeastern brazilian streams
Provedor de dados: 49
Autores: Casatti,Lilian; Rocha,Fabíola C.; Pereira,Danusa C.
In this study, habitat use of the armored catfishes Hypostomus ancistroides and Hypostomus sp. was investigated in 21 streams from the Upper Rio Paraná system in São Paulo State, Brazil, a pasture dominated region. The abundance of Hypostomus sp. was positively correlated with the amount of riffles and riparian vegetation condition, whereas H. ancistroides abundance was negatively correlated with riparian vegetation condition. Thirteen ecomorphological attributes analyzed by principal component analysis showed that when compared to H. ancistroides, Hypostomus sp. presented a wider mouth and more flattened body, suggesting an adapted body to faster waters. The most abundant populations of Hypostomus sp. were predominantly associated with good riffle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armored catfishes; Upper Rio Paraná; Ecomorphology; Diet; Habitat partitioning.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000300012

Preliminary data on the feeding habits of the freshwater stingrays Potamotrygon falkneri and Potamotrygon motoro (Potamotrygonidae) from the Upper Paraná River basin, Brazil
Provedor de dados: 49
Autores: Silva,Thiago Buosi; Uieda,Virgínia Sanches.
Stingrays of the Potamotrygonidae family are a singular group of Neotropical ichthyofauna. Although ancient reports exist about the group, there are still many questions that need to be clarified, such as the biology of the species that occur in the Paraná-Paraguay River system. In the present work, the diet of Potamotrygon falkneri and Potamotrygon motoro, captured in the Upper Paraná River, downstream from the Engenheiro Souza Dias Hydroelectric Power Station (UHE Jupiá), was analyzed. Both species showed a diversified diet, consisting of 14 food items, including Mollusca, Crustacea, Insecta and fish, with the predominance in diversity and abundance of aquatic insects. Only one individual of each species ingested fish. Potamotrygon motoro consumed mainly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Rays; Resource partitioning; Microhabitat.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000100027

Jaguarundi (Puma yagouaroundi) predation by puma (Puma concolor) in the Brazilian Atlantic Forest
Provedor de dados: 49
Autores: Magioli,Marcelo; Ferraz,Katia Maria P. M de Barros.
Abstract The jaguarundi (Puma yagouaroundi) is the second most widespread carnivore of the Americas, and considered a threatened species in Brazil. However, most of its ecology is unknown, and few information is available about species that may act as its predator. In this study we present evidence of the predation of a jaguarundi by puma (Puma concolor) in a protected area (Carlos Botelho State Park) in the state of São Paulo, southeastern Brazil. We collected fecal samples in trails and dirt roads in the study area, and by using hair cuticle imprints and medullar patterns, we identified a puma scat containing hair and claws of a jaguarundi. Pumas usually consume carnivores, but the presence of felids is uncommon, especially in Brazil. This could be...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Intraguild predation; Trophic interactions; Diet; Felids; Feces.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100501

Effect of oil palm (Elaeis guineensis Jacq.) plantations on individual-level diet variation of Hylaeamys megacephalus (G. Fisher 1814) (Rodentia, Cricetidae) in eastern Amazon Forest
Provedor de dados: 49
Autores: Pena,Simone Almeida; Mendes-Oliveira,Ana Cristina.
Abstract: In this study we described the diet of Hylaeamys megacephalus (G. Fisher, 1814) and investigated the degree of individual variation in the diet of this species among the Amazon Forest and the oil palm plantation. We analyzed the stomach contents of 36 individuals, of whom 11 were collected in the forest and 25 captured in the palm oil palm plantation. The H. megacephalus diet consisted of 18 food items, of which 12 were animal composition and eight were vegetable composition. The niche amplitude of the species was narrower in the forest area (Baforest = 0.013) compared to the palm tree plantation area (Bapalm = 0.478). This shows that individuals have greater niche overlap in forest areas, while in the plantation areas the animals expand their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Food importance; Individual specialization; Niche amplitude; Rodentia.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200211

Life history of three catfish species (Siluriformes: Ariidae) from southeastern Brazil
Provedor de dados: 49
Autores: Denadai,Márcia Regina; Bessa,Eduardo; Santos,Flávia Borges; Fernandez,Wellington Silva; Santos,Fernanda Motta da Costa; Feijó,Mônica Malagutti; Arcuri,Andreza Cristina Dias; Turra,Alexander.
This study evaluated the spatio-temporal distribution, reproduction and diet of the catfishes Genidens genidens, G. barbus and Aspistor luniscutis in Caraguatatuba Bay. Their sizes were recorded and the sex and reproductive stage identified. The abundance was compared between areas (South and North) and among months (August 2003 - October 2004). The species had different spatial distributions, allowing them to coexist. The temporal distribution reflected their tendencies to migrate in the reproductive period, as evidenced by the dominance of small immature individuals in the bay. G. genidens tended to reproduce in winter, and A. luniscutis in spring. The diet of G. genidens consisted of crustaceans, mollusks (shells), fish scales, ostracods, and bivalve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spatio-temporal distribution; Diet; Genidens genidens; Genidens barbus; Aspistor luniscutis; Caraguatatuba Bay.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400008

Catfishes as prey items of Potamotrygonid stingrays in the Solimões and Negro rivers, Brazilian Amazon
Provedor de dados: 49
Autores: Shibuya,Akemi; Zuanon,Jansen.
In spite of the fact that catfish have rarely been reported as food items in the diets of freshwater stingrays, they are commonly observed in the stomach contents of species inhabiting the Solimões and Negro rivers in the Brazilian Amazon. The stomach contents of six rays from the Solimões River and 64 from the Negro River were analyzed, and catfishes (distributed among the families Callichthyidae, Cetopsidae, Doradidae and Loricariidae) were found in the stomach contents of four and 10 of these rays, respectively, comprising a frequency of occurrence of 20%. These data indicate a relevant participation of catfishes in the diets of potamotrygonid rays in the Amazon, and may reflect the regional diversity and abundance of Siluriformes in the region.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Feeding; Freshwater stingrays; Myliobatiformes; Siluriformes.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100041

Fruit-eating fishes of Banara arguta (Salicaceae) in the Miranda River floodplain, Pantanal wetland
Provedor de dados: 49
Autores: Costa-Pereira,Raul; Severo-Neto,Francisco; Yule,Tamires Soares; Pereira,Ana Paula Tinti.
The role of fish as frugivorous and its ecological consequences are often neglected in ecological studies. However, the importance of the interaction between fish and plants is gaining force in scientific literature, and fish has been considered effective seed dispersers. The fruit-eating fish assemblage of Banara arguta (Salicaceae) was evaluated in Southern Pantanal wetlands. Nine species were reported consuming fruits, with different strategies to capture them. The distribution of B. arguta associated with the Pantanal floodplain and the presence of several species of fruit-eating fish, suggest that ichthyochory can be an important seed dispersal strategy to B. arguta.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brycon; Diet; Foraging behavior; Frugivory; Ichthyochory; Triportheus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000400033

Opportunistic predation of fish by anomuran crabs (Crustacea, Anomura, Aeglidae) in rivers of southern Brazil
Provedor de dados: 49
Autores: Savaris,Marcoandre; Lampert,Silvana; Trevisan,André; Masunari,Setuko.
The opportunistic predation on the fishes Astyanax fasciatus and Crenicichla sp. entangled in gill net by the aeglid crabs Aegla grisella and Aegla singularis was observed in rivers of southern Brazil. These events occurred in two rivers located at the National Forest of Passo Fundo, in Mato Castelhano municipality, Rio Grande do Sul State and Tangará municipality, Santa Catarina State. In both places the fish showed similar wound pattern, with eyes and fins being consumed first. However, predation of the whole body was also recorded, probably due to the high number of aeglid crabs feeding on the same individual. This record intended to contribute for understanding the natural diet of these crabs in freshwater environments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Behavior; Aeglid crabs.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400025

Biology and population features of a rare species of Pseudopimelodidae from the Upper Paraná River Basin
Provedor de dados: 49
Autores: Esguícero,André Luiz Henríques; Arcifa,Marlene Sofia.
Streams contain an expressive fraction of the South American fish diversity, mostly composed of small-sized, endemic, and rare species. Populational, reproductive, and diet aspects of Microglanis garavelloi were studied, aiming to make a wide characterization of this species of bumblebee catfish. This is an endemic species of the Upper Paraná River Basin, and the only representative of the genus in the watershed. It is a littoral-dweller of small rivers, with asymptotic length of 34.1 mm and a population mostly composed of individuals with 20-30 mm of standard length. This species presents high fecundity and mortality rate, and low longevity and growth rate. It is a total spawner, October to February being the spawning period, and probably has brood care...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Siluriformes; Conservation; Population structure; Reproductive dynamics; Diet.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300018

Seasonal variation of consumption of the species used as fruit source by brown howler monkeys (Alouatta clamitans) in southern Brazil
Provedor de dados: 49
Autores: Santos,Gisele Aparecida da Silva Doratti dos; Bianchini,Edmilson; Reis,Nelio Roberto dos.
Considering the seasonal variation of fruits availability in seasonal semideciduous forests, this study analyzed whether the richness of fruit species exploited by Alouatta clamitans is higher in the rainy period rather than the dry one. Plant species consumed were investigated by visualization and feces analysis, from July 2005 to June 2006, in a seasonal semideciduous forest fragment in Paraná state, Brazil. Ten species of fruits were consumed during the rainy period and 13 during the dry period: three were consumed exclusively during the rainy period; six exclusively during the dry period; and seven in months that covered both dry and rainy periods. The number of fruit species consumed during the rainy period was considerably lower than the expected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Frugivory; Fruiting phenology; Guariba; Seasonal semideciduous forests.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300148

Feeding habits of the blue shark (Prionace glauca) off the coast of Brazil
Provedor de dados: 49
Autores: Vaske Júnior,Teodoro; Lessa,Rosangela Paula; Gadig,Otto Bismarck Fazzano.
Stomachs from 222 blue sharks collected along the Brazilian coast were analyzed - 116 from the northeastern region and 106 from the southern region. A total of 51 prey taxa were identified. The most important prey items in the southern region were Mysticeti whales, teleosteans, the gempylid Ruvettus pretiosus and the nomeid Arioma bondi. Cephalopods were more diverse, with dominance of vertical migrants Histioteuthis spp., Cranchiidae and the epipelagic octopus Ocythoe tuberculata. In the northeastern region, blue sharks consumed mainly teleosteans, including the alepisaurid Alepisaurus ferox and the gempylid Gempylus serpens. Among cephalopods, Histioteuthis spp. and the epipelagic octopus Tremoctopus violaceus were the dominant items. Predation upon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elasmobranch; Carcharhinidae; Diet.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300004

Feeding ecology of carnivores (Mammalia, Carnivora) in Atlantic Forest remnants, Southern Brazil
Provedor de dados: 49
Autores: Rocha-Mendes,Fabiana; Mikich,Sandra Bos; Quadros,Juliana; Pedro,Wagner André.
The diet of some sympatric carnivore species in three Atlantic Forest remnants of Southern Brazil was studied in order to assess their food niche. We conducted monthly field trips between February 2003 and January 2004 to collect fecal samples that were subsequently examined together with others collected sporadically between November 1994 and January 2003. Of the 416 samples analysed, 198 had the "author" species identified through microscopic analysis guard hairs, which revealed the presence of 10 carnivores and some information about their diet. Puma yagouaroundi had the largest dietary niche breadth, whereas Leopardus tigrinus and Nasua nasua showed the lowest values. Extensive niche overlap was observed between L. tigrinus and N. nasua, L. tigrinus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnivores; Diet; Endangered species; Atlantic Forest; Forest fragments; Neotropics; Niche overlap.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400001

Predator-prey interaction between two threatened species in a Brazilian hotspot
Provedor de dados: 49
Autores: Canale,Gustavo Rodrigues; Bernardo,Christine Steiner São.
Conflicts in conservation may arise if two or more threatened species are involved in prey-predator interaction. Predators may have a profound effect on small prey populations, thus conservation actions must consider inter-specific interactions involving threatened species. Here we report nest predation events on a wild population of the Endangered red-billed curassow Crax blumenbachii Spix, 1825 by a group of the Critically Endangered yellow-breasted capuchin monkeys Sapajus xanthosternosWied-Neuwied, 1820 in the Brazilian Atlantic Forest. This is the first study to report egg predation of an threatened gamebird by an threatened primate. We recommend that systematic conservation planning for these threatened species consider interactions, especially...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Atlantic Forest; Coexistence; Conservation; Crax blumenbachii; Diet; Sapajus xanthosternos.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100403

Feeding and trophic ecomorphology of Satanoperca pappaterra (Pisces, Cichlidae) in the Manso Reservoir, Mato Grosso State, Brazil
Provedor de dados: 52
Autores: Hahn,Norma Segatti; Cunha,Fabiane.
The aim of this work was to evaluate the relationship between diet and features of the trophic ecomorphology of Satanoperca pappaterra (Heckel, 1840) in an impacted environment. Samples were collected from March 2000 to February 2003 in Manso Reservoir, Cuiabá River, Mato Grosso State. Analysis of 93 stomachs contents showed that food resources associated with the substrate, such as plant remains, detritus, fish scales and Chironomidae larvae, dominated the diet. Consequently this species was characterized as a detritivorous-invertivorous. However, individuals collected in 2003 showed a greater selection of benthic organisms in relation to previous periods. Morphological structures such as position of the mouth, form of the lips, gill rakers and pharyngeal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cichlidae; Diet; Morphology; Freshwater.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800017

Diet of a catfish before and after damming of the salto caxias reservoir, iguaçu river
Provedor de dados: 52
Autores: Delariva,Rosilene Luciana; Hahn,Norma Segatti; Gomes,Luiz Carlos.
This study evaluated the diet of Pimelodus sp., before and after damming of Salto Caxias, (waterfall in the Iguaçu river), as well spatial and ontogenetic diet shift. Surveys were carried out from March 1997 to February 1998 (before damming) and from April 1999 to January 2000 (after damming) inside the reservoir and adjacent tributaries. Stomach contents analysis of 682 specimens revealed omnivory with high degree of trophic opportunism to this species. Analysis of variance (three way ANOVA) for scores produced from Detrended Correspondence Analysis (DCA) yielded a significant interaction between the damming phases and size of the individuals (juveniles and adults) (F = 4.68; P = 0.04). After damming, adults exploited mainly fish, whereas the juveniles...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catfish; Diet; Trophic opportunism; Reservoir.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000500004

Diet, Epidemiological Factors and Cognitive Impairment: A Cross-Sectional Study in the Elderly Population
Provedor de dados: 52
Autores: França,Vivian Francielle; Azzolini,Thairine; Pissaia,Ediane; Bortoloti,Durcelina Schiavoni; Signorini,Taise; Costa,Lediana Dalla; Souza,Marília Moraes Queiroz; Lívero,Francislaine Aparecida dos Reis; Lovato,Evellyn Claudia Wietzikoski.
ABSTRACT Purpose Population aging is one of the great achievements of humanity. However, with aging, the incidence of chronic diseases and those related to cognition deficits increase. In this way, strategies aimed at preventing or delaying cognitive deficit are extremely necessary. Thus, this study investigates the relationship between cognitive deficits, schooling and eating habits in a Brazilian elderly population. Methods The dietary habits of 400 older adults were investigated through structured questionnaires. Unhealthy eating habits such as low consumption of fruits, vegetables and beans, consumption of fatty meats and whole milk, adjusted for other variables, were evaluated. Cognitive function was assessed by the Mini Mental State Examination...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aging; Cognitive; Diet; Fruits; Schooling; Vegetable.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100327

Natural diet of Neohelice granulata (Dana, 1851) (Crustacea, Varunidae) in two salt marshes of the estuarine region of the Lagoa dos Patos lagoon
Provedor de dados: 52
Autores: Barutot,Roberta Araujo; D'Incao,Fernando; Fonseca,Duane Barros.
Natural diet of Neohelice granulata in two salt marshes of Lagoa dos Patos, RS were studied. Sampling was performed seasonally and crabs were captured by hand by three persons during one hour, fixed in formaldehyde (4%) during 24 h, transferred to alcohol (70%). Each foregut was weighed and repletion level was determined. Differences between sexes in the frequencies of occurrence of items were tested by χ2test. A total of 452 guts were analyzed. Quali-quantitative analyses were calculated following the method of relative frequency occurrence and relative frequency of the points. At both sites, for both sexes and in all seasons, the main food items were sediment, Spartina sp. and plant detritus. The highest values of mean repletion index were estimated for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Brachyura; Diet; Salt marsh.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100012

Feeding habits of capybaras (Hydrochoerus hydrochaeris, Linnaeus 1766), in the Ecological Reserve of Taim (ESEC - Taim) - south of Brazil
Provedor de dados: 52
Autores: Borges,Lucélia do Valle; Colares,Ioni Gonçalves.
The aim of this study was to determine feeding habitats of capybaras in the ESEC-Taim (RS, Brazil), using microhistological analyses of feces. Data were analyzed seasonally. In 172 samples analyzed, 17 species were identified, with predominance of Poaceae. Zizaniopsis bonariensis was the most frequent species in winter (38%), spring (32%) and summer (26.5%) and Paspalum disthichum in fall (31.5%). A observed increase in vegetation consumption during summer might be due to the food quality. Capybaras showed an opportunistic behavior in the winter and summer and a more selective behavior in spring and fall. Capybaras from the ESEC-Taim varied diet according to the season and alimentary availability.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capybara; Rodent; Herbivory; Diet; Poaceae.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300007

Diet of Astyanax species (Teleostei, Characidae) in an Atlantic Forest River in Southern Brazil
Provedor de dados: 52
Autores: Vilella,Fábio Silveira; Becker,Fernando Gertum; Hartz,Sandra Maria.
Feeding habits of six species of Astyanax from river Maquiné are described. Fishes were sampled bi-monthly from November/95 to September/96 in two zones of the river. Items were identified, counted and had their abundance estimated according to a semi-quantitative scale. Frequency of occurrence, alimentary importance index (IFI) values and a similarity analysis of diets for each species-river zone sample were examined. All the species were considered typically omnivorous, with insects and vegetal matter being the most important items in their diet. These species could act as seed dispersers, particularly for macrophytes. Intra-specific spatial differences were not observed in comparisons of samples from two diferent regions of the river, except for A....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Seed dispersal; Fish; Astyanax; Atlantic Forest; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200015

Influence of temperature and diet on the development of Ulomoides dermestoides (Fairmaire, 1893) (Coleoptera, Tenebrionidae, Diaperinae)
Provedor de dados: 52
Autores: Marinoni,Renato C.; Ribeiro-Costa,Cibele S.
Ulomoides dermestoides (Fairmaire, 1893) develops in stored food products (peanuts, maize, oats, rice, sorghum, etc.) and breeds successfully in the laboratory. To determine the best conditions for development, experiments were set up in different temperatures and diets, similar to storage conditions of peanuts (Arachis hypogaea L.). The higher viability of individuals and the shorter developmental time were observed in the diet composed of hulls and seeds of fruits at 21 and 24°C.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Ulomoides dermestoides; Peanuts; Diet; Temperature; Moisture.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200004

Diet and dietary overlap of three sympatric fish species in lakes of the upper Paraná River floodplain
Provedor de dados: 52
Autores: Luz,Karla Danielle Gaspar da; Okada,Edson Kiyoshi.
For a dietary study, specimens of Astyanax bimaculatus, Astyanax schubarti, and Moenkhausia intermedia were caught monthly with seines-nets in six lakes (Pau Veio, Porto Rico, Três Amigos, Mutum, Pontal, and Canal do Meio), on the floodplain of the Upper Paraná River, from March 1992 through February 1993. We analyzed stomach contents of 599 A. bimaculatus, 293 A. schubarti, and 394 M. intermedia, by the Occurrence and Points methods, combined in the Alimentary Index (AI). This analysis revealed that these species have broad dietary spectra. A. bimaculatus was an omnivore, with a tendency toward herbivory-insectivory. In most of the lakes it consumed terrestrial insects, followed by higher plants and microcrustaceans. A. schubarti was an omnivore,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Astyanax bimaculatus; Astyanax schubarti; Moenkhausia intermedia; Diet.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000400009

Changes in the diet composition of transitory fishes in coastal systems, estuary and continental shelf
Provedor de dados: 52
Autores: Chaves,Paulo T. C.; Umbria,Simone C.
The feeding habits of five species of teleosts in the southern coast of Brazil were analyzed comparatively between estuary and continental shelf. The displacement between the two sites caused expressive qualitative alterations, the proportion of different items varying from 50% in the diet of Micropogonias furnieri to 89% in Isopisthus parvipinnis. In the group of species, 57% of the items were exclusive to one of the environments and, within the three most common items in the estuary - fish, Polychaeta and plants, only the former was also among the most common items in the shelf. In spite of these differences, the high spectrum of items in both environments and the nature of the item that was most consumed in each one, indicate that there was a certain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fish; Estuary; Continental Shelf; Brazil.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100007

Diet of the colubrid snake, Thamnodynastes strigatus (Günther, 1858) from Paraná State, Brazil, with field notes on anuran predation
Provedor de dados: 57
Autores: BERNARDE,P. S.; MOURA-LEITE,J. C.; MACHADO,R. A.; KOKOBUM,M. N. C.
Dissection of 44 specimens of the colubrid snake Thamnodynastes strigatus (Serpentes: Colubridae) provided data on food habits. Prey items include frogs (71.4% of the sample), rodents (14.3%), fishes (10.7%), and lizards (3.6%). The most of the anuran species recorded (Bufo sp., Leptodactylus sp., Physalaemus cuvieri and Scinax fuscovarius) are ground dwellers or call at the water level. Field observations provided information on the feeding behavior.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Colubridae; Thamnodynastes strigatus; Diet; Anuran predation.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400022

Feeding habits of Chaoboridae larvae in a tropical Brazilian reservoir
Provedor de dados: 57
Autores: ARCIFA,M. S.
The diet of the four larval instars of a Chaoboridae species of Lake Monte Alegre, was evaluated through the analysis of the crop content of individuals caught at night in the lake. Peridinium and zooflagellates were the major components of the diet of instars I and II, whereas microcrustaceans, especially the cladoceran Bosmina, were most important for late instars. When the preferential prey decreased, in the course of the year, the diet was more diversified, increasing the ingestion of Peridinium by instars III and IV. There is a relationship between the mouth diameter of the larvae and the maximum width, height, or diameter of the ingested organisms.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chaoboridae; Four instars; Diet; Zooplankton; Omnivory.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400008

Lepidopteran caterpillar fauna on lactiferous host plants in the central Brazilian cerrado
Provedor de dados: 57
Autores: DINIZ,I. R.; MORAIS,H. C.; BOTELHO,A. M. F.; VENTUROLI,F.; CABRAL,B. C.
Nine lactiferous plants of five families were examined for caterpillars in a 4 ha cerrado sensu stricto (savanna-like vegetation) area of the University of Brasília Experimental Farm (DF, Brazil), from August 1995 to May 1997. In 5,540 censuses, less than 5% of the plants hosted caterpillars. All the caterpillars found, a total of 55 species in 15 families were reared under laboratory conditions. Pyralidae, Geometridae, Elachistidae, Megalopygidae, and Limacodidae were the richest caterpillar families recorded. Of the 55 species, more than 40% were polyphagous, feeding on different host plant families, while 21 were considered rare species with less than four records during the study period. The species' rareness did not permit any analysis of diet...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Latex; Lepidoptera; Host-plants; Cerrado; Diet.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400012

Feeding habits and microhabitat utilization by two syntopic Brazilian Amazonian frogs (Hyla minuta and Pseudopaludicula sp. (gr. falcipes)
Provedor de dados: 57
Autores: VAN SLUYS,M.; ROCHA,C. F. D.
We studied the feeding habits and microhabitat use of the Amazonian frogs Hyla minuta and Pseudopaludicula sp. at Serra Norte, Carajás, Brazil. Although living syntopically, the two species differed markedly in both prey types and sizes. Standardized feeding niche breadth of H. minuta (Bst = 0.572) was larger than that of Pseudopaludicula sp. (Bst = 0.149) and their feeding niche overlap was considerably low (10.5%). The two frog species also differed in microhabitat use. When active, Pseudopaludicula sp. were found partially submerged at the lake border whereas H. minuta were found predominantly on Nymphaea sp. leaves. Although we have not evaluated taxonomic effects on diet composition, differences in diet may be partially explained by differences in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Frogs; Resource partitioning; Syntopy.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000400003

Food consumption by young adults living in Ribeirão Preto, SP, 2002/2004
Provedor de dados: 56
Autores: Molina,M.C.; Bettiol,H.; Barbieri,M.A; Silva,A.A.M.; Conceição,S.I.O.; Dos-Santos,J.E.
There is evidence showing a close relationship between diet and the occurrence of non-communicable chronic diseases. The present study assessed food consumption in a 2002/2004 cohort of young adults born in 1978/79 in Ribeirão Preto, SP, Brazil. The composition of the habitual diet consumed by a sample of 2063 individuals aged 23-25 years was analyzed using a validated semi-quantitative food frequency questionnaire based on studies of prevention of non-communicable chronic diseases. The Dietsys software was used for dietary calculations. In terms of WHO/2003 recommendations, there was a high mean daily consumption of energy from fat (consumption: 35.4%; recommendation: 15-30%), a low mean intake of energy from carbohydrates (47.5%; 55-75%) and a low mean...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food consumption; Food frequency questionnaire; Food groups; Feeding habits; Diet; Non-communicable diseases of adults.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000900013

The APOB rs693 polymorphism impacts the lipid profile of Brazilian older adults
Provedor de dados: 56
Autores: Alves,E.S.; Henriques,A.D.; Tonet-Furioso,A.C.; Paula,R.S.; Gomes,L.O.; Moraes,C.F.; Nóbrega,O.T.
The apolipoprotein B (APOB) gene contains several polymorphic sites described as risk modifiers for cardiovascular events. The objective of this study was to verify the association of the classic APOB Xba I polymorphism (rs693) with atherosclerotic risk factors in a segment of the Brazilian elderly population considering their usual dietary intake. Clinical and biochemical characteristics as well as total caloric and fat intake data were determined from 644 elderly individuals. Polymorphism analysis was performed by conventional polymerase chain reaction followed by enzyme restriction. Statistical analyses compared measures and proportions according to different APOB genotypic combinations. Statistically significant association was found between Xba I...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apolipoprotein B; Genetic polymorphism; Elderly; Hyperlipidemia; Diet.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300608

Effect of dietary linoleic acid on the progression of chronic renal failure in rats
Provedor de dados: 56
Autores: Gregório,S.M.P.; Lemos,C.C.S.; Caldas,M.L.; Bregman,R.
The role of linoleic acid in chronic renal failure (CRF) is controversial. In the present study 21 male Wistar rats submitted to 5/6 renal mass reduction (R) and 16 normal controls (C) were fed a supplement (S) or normal (N) linoleic acid diet for 60 days starting 10 days after CRF. As expected, serum creatinine, cholesterol and triglycerides (mean ± SEM) were higher in the CRF groups compared to the C groups (P&lt;0.05). The RS group presented lower cholesterol (84 ± 4 vs 126 ± 13 mg%) and triglyceride (88 ± 9 vs 132 ± 19 mg%) levels compared to the RN group. Proteinuria and kidney weight did not differ between CRF groups. Glomerular area increased 78% in RS and 100% in RN compared to control rats. Glomerular sclerosis index tended to be lower in RS (27%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chronic kidney failure; Diet; Glomeruli; Linoleic acid.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000500010

Effect of a Brazilian regional basic diet on the prevalence of caries in rats
Provedor de dados: 56
Autores: Pinheiro,J.T.; Couto,G.B.L.; Vasconcelos,M.M.V.B.; Melo,M.M.D.C.; Guedes,R.C.A.; Cordeiro,M.A.C.
The aim of the present study was to determine the effect of a regional basic diet (RBD) on the prevalence of caries in the molar teeth of rats of both sexes aged 23 days. The animals were divided into six groups of 10 rats each receiving the following diets for 30 and 60 days after weaning: RBD, a cariogenic diet, and a commercial diet. The prevalence and penetration of caries in the molar teeth of the rats was then analyzed. The RBD produced caries in 37.5% of the teeth of animals fed 30 days, and in 83.4% of animals fed 60 days, while the cariogenic diet produced caries in 72.5% and 77.5% of the teeth of animals fed 30 and 60 days, respectively. Rats fed the RBD for 30 days had caries in the enamel in 38% of their teeth, 48% had superficial dentin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caries; Diet; Diet cariogenicity; Brazilian regional basic diet.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000700010

Eggplant (Solanum melongena) infusion has a modest and transitory effect on hypercholesterolemic subjects
Provedor de dados: 56
Autores: Guimarães,P.R.; Galvão,A.M.P.; Batista,C.M.; Azevedo,G.S.; Oliveira,R.D.; Lamounier,R.P.; Freire,N.; Barros,A.M.D.; Sakurai,E.; Oliveira,J.P.; Vieira,E.C.; Alvarez-Leite,J.I.
Eggplant (Solanum melongena) is consumed extensively in Brazil. It has been believed that infusion of a powdered preparation of the fruit may reduce serum cholesterol. However, there are few documented reports on its effects on cholesterol metabolism and its possible hypocholesterolemic effect has not been proved by well-controlled studies. The aim of the present study was to observe the effects of S. melongena on the serum cholesterol and triglycerides of 38 hypercholesterolemic human volunteers ingesting S. melongena infusion for five weeks. Thirty-eight hypercholesterolemic subjects receiving either S. melongena infusion (N = 19) or placebo (N = 19) participated in two clinical experiments in which the effect of S. melongena infusion was studied with (N...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cholesterolemia; Eggplant; Diet; Solanum melongena; Atherosclerosis index.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000900006

Association of CYP7A1 -278A&gt;C polymorphism and the response of plasma triglyceride after dietary intervention in dyslipidemic patients
Provedor de dados: 56
Autores: Barcelos,A.L.V.; Chies,R.; Almeida,S.E.M.; Fiegenbaum,M.; Schweigert,I.D.; Chula,F.G.L.; Rossetti,M.L.; Silva,C.M.D.
We investigated the effect of the -278A&gt;C polymorphism in the CYP7A1 gene on the response of plasma lipids to a reduced-fat diet for 6 to 8 weeks in a group of 82 dyslipidemic males with a mean age of 46.0 ± 11.7 years. Individuals who presented at least one high alteration in total cholesterol, low-density lipoprotein cholesterol or triglyceride values were considered to be dyslipidemic. Exclusion criteria were secondary dyslipidemia due to diabetes mellitus, renal, liver, or thyroid disease. None of the subjects were using lipid-lowering medication. Baseline and follow-up lipid concentrations were measured. The genotypes were determined by the digestion of PCR products with the BsaI restriction endonuclease. There were statistically significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dyslipidemia; Polymorphisms; Diet; CYP7A1; Southern Brazil.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000600003

Effect of high-fat diets on body composition, lipid metabolism and insulin sensitivity, and the role of exercise on these parameters
Provedor de dados: 56
Autores: Coelho,D.F.; Pereira-Lancha,L.O.; Chaves,D.S.; Diwan,D.; Ferraz,R.; Campos-Ferraz,P.L.; Poortmans,J.R.; Lancha Junior,A.H.
Dietary fat composition can interfere in the development of obesity due to the specific roles of some fatty acids that have different metabolic activities, which can alter both fat oxidation and deposition rates, resulting in changes in body weight and/or composition. High-fat diets in general are associated with hyperphagia, but the type of dietary fat seems to be more important since saturated fats are linked to a positive fat balance and omental adipose tissue accumulation when compared to other types of fat, while polyunsaturated fats, omega-3 and omega-6, seem to increase energy expenditure and decrease energy intake by specific mechanisms involving hormone-sensitive lipase, activation of peroxisome proliferator-activated receptor α (PPARα) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fat; Obesity; Insulin; PUFA; Diet; Exercise.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001000001

A study on the short-term effect of cafeteria diet and pioglitazone on insulin resistance and serum levels of adiponectin and ghrelin
Provedor de dados: 56
Autores: Colombo,G.; Bazzo,M.L.; Nogueira,C.L.; Colombo,M.D.H.P.; Schiavon,L.L.; d’Acampora,A.J.
The interaction between ghrelin and adiponectin is still controversial. We investigated the effect of cafeteria diet and pioglitazone on body weight, insulin resistance, and adiponectin/ghrelin levels in an experimental study on male Wistar rats. The animals were divided into four groups of 6 rats each, and received balanced chow with saline (CHOW-O) or pioglitazone (CHOW-P), or a cafeteria diet with saline (CAFE-O) or pioglitazone (CAFE-P). The chow/cafeteria diets were administered for 35 days, and saline/pioglitazone (10 mg·kg body weight-1·day-1) was added in the last 14 days prior to euthanasia. CAFE-O animals had a higher mean final weight (372.5 ± 21.01 g) than CHOW-O (317.66 ± 25.11 g, P = 0.017) and CHOW-P (322.66 ± 28.42 g, P = 0.035) animals....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Insulin resistance; Adiponectin; Ghrelin; Thiazolidinediones.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001000008

Association between diet and polymorphisms in individuals with statin-controlled dyslipidaemia grouped according to oxidative stress biomarkers
Provedor de dados: 60
Autores: Botelho,Patrícia Borges; Fioratti,Cyntia Okoshi; Rogero,Marcelo Macedo; Barroso,Lucia Pereira; Bertolami,Marcelo Chiara; Castro,Inar Alves.
The objective of this study was to investigate whether differences in diet and in single-nucleotide polymorphisms (SNPs) found in paraoxonase-1 (PON-1), 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR), cholesterol ester transfer protein (CETP) and apolipoprotein E (APOE) genes, are associated with oxidative stress biomarkers and consequently with susceptibility of low-density cholesterol (LDL) to oxidation. A multivariate approach was applied to a group of 55 patients according to three biomarkers: plasma antioxidant activity, malondialdehyde and oxidized LDL (oxLDL) concentrations. Individuals classified in Cluster III showed the worst prognoses in terms of antioxidant activity and oxidative status. Individuals classified in Cluster I presented...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Oxidative stress/biomarkers; Single-nucleotide polymorphism (SNPs); Lipoproteins/oxidation; Statins; Apolipoprotein E.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000100005

Digestibility, protein retention rate and ammonia excretion in juvenile fat snook (Centropomus parallelus) fed with different protein levels
Provedor de dados: 65
Autores: Carvalho,Maria Araci Grapiuna de; Fernandes,Luiz Fernando Loureiro; Gomes,Levy de Carvalho.
ABSTRACT: The aim of this study was to determine the level of dietary crude protein (CP) (480, 400, 440, 520 and 560g kg-1) in rations for juvenile II fat snook (Centropomus parallelus) that best promotes protein absorption and lower excretion of nitrogenous products. Three experiments were conducted: the first assessed the protein retention rate; the second evaluated ammonia excretion; and the third determined the best digestibility coefficient. The estimated protein retention rate showed a positive quadratic response to dietary CP with maximum retention at the 510.20g kg-1 protein level, and increasing levels of protein resulted in a greater total ammonia excretion rate in water. The mean apparent protein digestibility coefficient values increased with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude digestible protein; Fish culture; Nitrogen excretion; Diet.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700652

Effect of the supplementation linseed oil, inulin and horse chestnut into a high fat diet on the fatty acid profile of pigs
Provedor de dados: 65
Autores: Brestenský,Matej; Nitrayová,Soňa; Patráš,Peter; Heger,Jaroslav; Nitray,Jozef.
ABSTRACT: In the present study it was evaluated the effect of the addition of linseed oil, inulin and horse chestnut added to a high fat (HF) diet on the content of fatty acids (FAs) in musculuss longissimus dorsi (MLD) of pigs. A 5d with adaptation period was followed by a 70 d experimental period, during which the pigs were fed with a HF basal diet. The HF basal diet which served as a control (group CG) was supplemented either with linseed oil (group LG) or with inulin and horse chestnut (group IG). All of the pigs were slaughtered at the end of the experiment and samples of MLD were taken for FA analysis. The concentration of α-linolenic acid in MLD of the LG group was 58 % and 61 % higher (P˂0.05) compared to CG and IG groups, respectively. The content...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Fatty acid; Linseed oil; Pig; Prebiotics.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101992

A weight loss protocol and owners participation in the treatment of canine obesity
Provedor de dados: 65
Autores: Carciofi,Aulus Cavalieri; Gonçalves,Karina Nogueira Venturelli; Vasconcellos,Ricardo Souza; Bazolli,Rodrigo Sousa; Brunetto,Márcio Antonio; Prada,Flávio.
The success of a weight loss program for pets depends on the owners collaboration. Their compliance is fundamental in establishing the correct food management. The objective of this study was to compare the effectiveness of a weight loss program in two groups of dogs, one maintained under experimental conditions and the other with their owners. The same hypocaloric food was used to feed all animals, the amount being restricted to 60% of the estimated maintenance energy requirement for a 15% reduction of the present body weight of the dog. The animals were followed during 90 days. A standard questionnaire was used to study the owners' perception of obesity and its treatment. The protocol and the diet were found to be effective. The control dogs had an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dogs; Obesity; Treatment; Diet.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000600016

Coconut oil on biochemical and morphological parameters in rats submitted to normolipidic and hyperlipidic diets
Provedor de dados: 65
Autores: Schumacher,Bianca de Oliveira; Preuss,Edcarlos Maurino; Vargas,Carolina Galarza; Helbig,Elizabete.
ABSTRACT: This study aimed to evaluate the influence of replacing soybean oil with extra virgin coconut oil in normolipidic and hyperlipidic diets, on the lipid metabolism of Wistar rats. In the first stage of the experiment (30 days), 36 rats were divided into 2 groups and fed with a control or a hyperlipidic diet. Six animals from each group were then killed, and the remaining rats were redistributed into 4 new groups: 2 groups remained on the control and hyperlipidic diets, and in the diets of the other 2 groups, the soybean oil was replaced with coconut oil (30 days). At the end of the assay, the biological models were decapitated for blood collection and removal of organs and peritoneal fat. Although the diet intake differed among groups during both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucifera L; Extra virgin coconut oil; Obesity; Rat; Diet.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001818

The table egg: a review
Provedor de dados: 64
Autores: Bertechini,Antonio Gilberto; Mazzuco,Helenice.
This present review intends to provide information and update the reader about diverse aspects of quality and consumption of eggs, the variation among consumer preference worldwide emphasizing the upper status this food represents as source of essential nutrients for human health. This review mainly focus on topics regarding production and quality of table eggs, emphasizing some aspects of the egg market, trend in egg intake and consumers perceptions regarding egg content and nutritious values. Additionally, results from specific studies that provide new findings about the role of enrichment egg components on health, prevention and treatment of diseases are discussed. A novel viewpoint is proposed in this review, highlighting the perspective for an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enrichment eggs; Diet; Egg quality; Human health.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200001