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| Registros recuperados: 48 | |
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| Quintela,Fernando M.; Iob,Graziela; Artioli,Luiz G. S.. |
| Despite its wide range and abundance on certain habitats, the crab-eating raccoon Procyon cancrivorus (G. Cuvier, 1798) is considered one of the less known Neotropical carnivore species. In the present study we analyzed the diet of P. cancrivorus in a peat forest and in an estuarine island in southernmost Brazil. Fruits of the gerivá palm tree Syagrus romanzoffiana were the most consumed item in the peat forest, followed by insects and mollusks. Small mammals, followed by Bromelia antiacantha (Bromeliaceae) fruits and brachyuran crustaceans were the most frequent items in the estuarine island. Other items found in lower frequencies were Solanum sp., Psidium sp., Smilax sp. and Dyospiros sp. fruits, diplopods, scorpions, fishes, anuran amphibians, reptiles... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bromelia antiacantha; Crab-eating racoon; Feeding habits; Subtropical Brazil; Syagrus romanzoffiana. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000200003 |
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| Manhães,Marco A.. |
| Eleven species of tanagers in Ibitipoca State Park, Minas Gerais, southeastern Brazil, were studied for 12 months and the birds diet was described. Fruits of 52 plant species were the main item consumed for all tanagers, representing 59.70% of all items in 1330 events, although different proportions in the use of this resource have been found among the bird species. The main plant families found were Myrtaceae with eight species accounting for 22.29% (n=177), and Melastomataceae with seven species accounting for 22.29% (n=177) of fruit intake. The most frequent plant species in the diet was Cecropia glaziovi Snethl. (Cecropiaceae), which made up 17.76% (n=141) of fruit intake of all species of tanagers. Arthropod consumption came second with 22.63%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Feeding habits; Frugivory; Southeastern Brazil. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000100007 |
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| Agostinho,Carlos S.; Marques,Elineide E.; Oliveira,Rafael J. de; Braz,Pollyanna S.. |
| The diet and feeding habits of armado catfish, Pterodoras granulosus (Valenciennes, 1821), were studied in the Lajeado Reservoir, Tocantins, Brazil, and the mouth of its tributaries. Stomach contents of 327 specimens were analyzed by the percentage composition and volumetric methods. The feeding of armado on a wide variety of foods, including both animal and plant items, leads to its classification as a euriphagic species with herbivorous tendency. However, it should be noted that armado showed a strong ontogenetic diet shift, with the gradual replacement of detritus and sediment by plant items, especially terrestrial ones. The environmental use pattern of P. granulosus corroborates the ontogenetic shift observed in its diet. Small fish predominated mainly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding habits; Seasonal shift; Ontogenetic shift; Habitat use. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000300012 |
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| SUAREZ, I. R.; NASCIMENTO, F. L.; CATELLA, A. C.. |
| Com o objetivo de estudar a alimentacao do tucunare (Cichla sp.) no Pantanal, foram realizadas cinco coletas entre novembro/1992 e junho/1994. Foram capturados 425 especimes, destes 207 apresentaram conteudo estomacal. Foram analisadas a Frequencia de Ocorrencia (FO), Volume Relativo (Vr) e "Indice Alimentar" (IA). Os peixes foram o principal item alimentar (FO=97,10%, Vr=96,45, IAi=99,81%), seguido de "restos vegetais", (FO=6,28%, Vr=2,49, IAi=16%) e camaroes (FO=1,93%, Vr=1,04, IAi=2%). Foram identificadas 21 especies de peixes no conteudo estomacal do "tucunare". Curimatella dorsalis foi a presa predominante em numero de individuos (18,75%) e em biomassa (28,81%). A familia mais representativa em biomassa foi Curimatidae (27,36%) e Cichlidae (26,93%);... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Cichla sp; Feeding habits; Wetland.; Alimentação; Peixe; Tucunaré.; Pantanal; Fish.. |
| Ano: 2001 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/809807 |
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| Aragon-axomulco, Heron; Chiappa-carrara, Xavier; Soto, Luis; Cuzon, Gerard; Arena, Leticia; Maldonado, Carlos; Cardenas, Rene; Gaxiola, Gabriela. |
| In view of the relationship between shifts in diet composition and the activity of digestive enzymes in penaeid shrimp, the present study focused on the analysis of digestive trypsin and a-amylase activities of wild Farfantepenaeus. duorarum (Burkenroad, 1939) juveniles and their changes in phenotypic expression, during the molt cycle as endogenous factor and their changes due to different feeding regimes (exogenous factor) in relation with delta C-13 and delta N-15 isotopic signature as an index of food assimilation induced by the seasonal availability of food items in the nursery area. Wild juveniles of F. duorarum were captured from April 2007 to February 2008, in the Celestun coastal lagoon, Yucatan, Mexico. Samplings were carried out considering all... |
| Tipo: Text |
Palavras-chave: Coastal lagoons; Digestive enzymes; Farfantepenaeus duorarum; Feeding habits; Pink shrimp. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00078/18880/16487.pdf |
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| Kopp, Dorothee; Robert, Marianne; Pawlowski, Lionel. |
| In marine ecosystems, the study of trophic relationships has extensively benefited from the development of stable isotope analyses (SIA) as dietary tracers. SIA are particularly useful in elucidating the structure of deep sea food webs given the constraints involved in obtaining gut-content data from deep trawling. We used carbon and nitrogen stable isotope analyses and Stable Isotope Bayesian Ellipses in R (SIBER) and Stable Isotope Analysis in R (SIAR) routines, to determine the trophic ecology of five deep-sea fishes from the upper continental slope of the Celtic Sea. SIA made it possible to deduce some general tendencies in food-web structure and species trophic interactions and confirmed diet determined by gut-content analysis for the same species, in... |
| Tipo: Text |
Palavras-chave: Competition; Feeding habits; Mixing models; Stable isotope. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00410/52138/52940.pdf |
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| Marassá,AM; Paula,MB; Gomes,AC; Consales,CA. |
| With a view toward investigating the feeding behavior of Culicidae mosquitoes from an area of epizootic yellow fever transmission in the municipalities of Garruchos and Santo Antônio das Missões, Rio Grande do Sul State, Brazil, specimens were collected by aspiration from September 2005 to April 2007. The engorged females were submitted to blood meal identification by enzyme-linked immunosorbent assay (ELISA). A total of 142 blood-engorged samples were examined for human or monkey blood through species-specific IgG. Additional tests for specificity utilizing isotypes IgG1 and IgG4 of human monoclonal antibodies showed that only anti-human IgG1 was effective in recognizing blood meals of human origin. The results indicated a significant difference (p =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culicidae; ELISA; Feeding habits; Isotypes; Yellow fever. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000400008 |
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| Pleguezuelos, J.M.; Fernández-Cardenete, J.R.; Honrubia, S.; Feriche, M.; Villafranca, C.. |
| In many vertebrates, foraging mode (active versus sit-and-wait) is tied to some traits of their natural history such as morphology, type of prey, rate of food acquisition, and survival rate. We explore the correlates between some morphological traits of a Mediterranean colubrid and its feeding ecology and the predation risk, by comparing data on teeth number, tail damage, and diet. A large sample (n = 368) of the Ladder Snake, Rhinechis scalaris is used. The species feeds almost exclusively on endotherms, mainly mammals (nearly 95% of the diet in mass), which set R. scalaris among the most stenophagous snakes in the western Palaearctic. There is also a high percentage of motionless prey in the diet (up to 50% in prey mass), such as nestling birds, mammals... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Feeding habits; Teeth number; Tail breakage; Spain; 42.82; 42.62. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/256128 |
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| Kasper,Daniele; Palermo,Elisabete Fernandes Albuquerque; Dias,Ana Carolina Monteiro Iozzi; Ferreira,Gustavo Luiz; Leitão,Rafael Pereira; Branco,Christina Wyss Castelo; Malm,Olaf. |
| Concentrations of organic (OrgHg) and inorganic mercury (InorgHg) were assessed in different fish tissues (liver, muscle, kidney, gut and gonads) and trophic levels collected in an impacted tropical reservoir in southeastern Brazil. Organic mercury concentrations in muscle were remarkably higher in the carnivorous species Hoplias malabaricus and Oligosarcus hepsetus. The ratios of OrgHg in relation to total mercury (%OrgHg) in muscle also varied according to the species trophic level: 93% for carnivores, 84% for omnivores, 73% for algivores/planktivores and 58% for detritivores. The %OrgHg in the gut tissue of carnivores (78%) was much higher than that found in omnivores (30%), possibly reflecting a process of trophic biomagnification in the reservoir. On... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding habits; Hydroelectric; Mercury species; Biomagnification; Bioaccumulation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400025 |
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| 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 |
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| Muriel-Cunha,Janice; Pinna,Mário de. |
| Data on new specimens of the rare subterranean catfish Phreatobius cisternarum are reported. Specimens were collected from hand-dug wells in the region of the mouth of the Amazon river, Brazil. A revised diagnosis of Phreatobius is proposed, and P. cisternarum is redescribed on the basis of new and previously available material. Included are data on coloration, both in life and preserved, SEM observations of external morphology, morphometric and meristic data. One juvenile specimen, the first known of the species, is reported and illustrated. The new and previously available material reveal considerable intraspecific variation in several morphological traits of P. cisternarum. Despite its rarity in collections, P. cisternarum seems to be common in wells in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phreatobius cisternarum; Siluriformes; Subterranean fishes; Fish ecology; Feeding habits; Behavior; Taxonomy. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005002600001 |
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| Huang,R; Li,L; Song,B; Lyu,Y; Wu,B. |
| ABSTRACT This study explores the differences of appearance and the digestive systems of two birds (Lonchura striata and Copsychus saularis), which have the same eating pattern in staple ingredients. Each bird was caught naturally and euthanized in appropriate manner, followed by morphology survey on bill, duodenum, jejunum, ileum and appearance of the body parts such as Culmen, Claw, Wing, Tarsus, Toe and Tail. The results showed that the appearance feature between them presented significant differences in the beak length, wing length and tail length, which were correlated to their staple feeding habits. In addition, in the digestive system, the length of duodenum and duodenal indexes showed significant differences (p<0.05 or p<0.01), which was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lonchura striata; Copsychus saularis; Feature parameters; Digestive system; Feeding habits. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000400309 |
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| Registros recuperados: 48 | |
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