Consulta: subjectFacets:"Predators"
Registros recuperados: 38
Data/hora: 03/06/2024 18:54:54

Enemigos naturales asociados a escamas armadas (Hemiptera: Diaspididae) del aguacate Hass en Michoacán, México.
Provedor de dados: 32
Autores: Lázaro Castellanos, Carlos.
Se identificaron enemigos naturales asociados a escamas armadas en aguacate Hass, y porcentaje de parasitismo en ramas y frutos. Los muestreos se realizaron en huertas certificadas para exportación en Michoacán, México. De julio de 2009 a septiembre de 2010 se colectaron quincenalmente escamas armadas y sus entomófagos en cinco huertos, mientras que en nueve se realizaron muestreos bimestrales (mayo a septiembre 2010) para determinar niveles de parasitismo. En cada muestreo se contó por especie el total de escamas vivas y parasitadas por estadio. Se identificaron tres especies de escamas armadas Hemiberlesia lataniae, Abgrallaspis aguacate y Hemiberlesia rapax, las cuales infestan hojas, ramas y frutos, estas especies se presentaron en 10, seis y dos...
Palavras-chave: Hemiberlesia lataniae; Abgrallaspis aguacatae; Parasitoides; Depredadores; Control biológico; Parasitoids; Predators; Biological control; Maestría; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/501

Dinámica poblacional de Dactylopius opuntiae (Cockerell) y sus enemigos naturales en Tlalnepantla, Morelos
Provedor de dados: 32
Autores: Vanegas Rico, Juan Manuel.
Las ―cochinillas del nopal‖ (Hemiptera: Dactylopiidae), son plagas primarias en los cultivo de nopal verdura  (Opuntia ficus-indica) en la parte central de México y no hay un método satisfactorio para su manejo. Los  estudios sobre su identidad taxonómica y  sus enemigos naturales son escasos yno existen trabajos sobre su  dinámica poblacional y factores de regulación. En el presente trabajo se planteó conocer las especies  presentes de Dactylopius y sus enemigos naturales, además de conocer sus dinámicas poblacionales y el  efecto de los enemigos naturales y factores climáticos en una de las áreas de mayor producción de nopal  verdura en México (Tlalnepantla, Morelos). Se seleccionaron 30 sitios distribuidos en esta región para  conocer las especies de...
Tipo: Tesis
Palavras-chave: Control biológico; Depredadores nativos; Maestría; Entomología y Acarología; Biological control; Predators.
Ano: 2009
URL: http://hdl.handle.net/10521/1352

Enemigos naturales asociados a escamas armadas (Hemiptera: Diaspididae) del aguacate Hass en Michoacán, México.
Provedor de dados: 32
Autores: Lázaro Castellanos, Carlos.
Se identificaron enemigos naturales asociados a escamas armadas en aguacate Hass, y porcentaje de parasitismo en ramas y frutos. Los muestreos se realizaron en huertas certificadas para exportación en Michoacán, México. De julio de 2009 a septiembre de 2010 se colectaron quincenalmente escamas armadas y sus entomófagos en cinco huertos, mientras que en nueve se realizaron muestreos bimestrales (mayo a septiembre 2010) para determinar niveles de parasitismo. En cada muestreo se contó por especie el total de escamas vivas y parasitadas por estadio. Se identificaron tres especies de escamas armadas Hemiberlesia lataniae, Abgrallaspis aguacate y Hemiberlesia rapax, las cuales infestan hojas, ramas y frutos, estas especies se presentaron en 10, seis y dos...
Palavras-chave: Hemiberlesia lataniae; Abgrallaspis aguacatae; Parasitoides; Depredadores; Control biológico; Parasitoids; Predators; Biological control; Maestría; Entomología y Acarología.
Ano: 2011
URL: http://hdl.handle.net/10521/501

Mesostigmados (Acari: Mesostigmata) asociados a Scolytinae (Coleoptera: Curculionidae) de importancia forestal en México.
Provedor de dados: 32
Autores: Chaires Grijalva, Martha Patricia.
En el presente trabajo se documentaron y describieron los diferentes aspectos de la taxonomía, biología y ecología de los ácaros asociados a escolitinos de importancia forestal en nuestro país. El objetivo principal fue el de conocer su diversidad, abundancia, distribución, estructura poblacional, así como conocer diferentes aspectos de las relaciones que presentan con otros microorganismos en el mismo microecosistema. Para ello se realizaron muestreos desde 2008 hasta el 2012, en los cuales se tomaron muestras de corteza y raíces con signos de daño por los descortezadores. Como complemento se revisaron colecciones acarológicas de diferentes instituciones, así como colecciones de descortezadores preservadas en alcohol. De acuerdo a la información obtenida...
Palavras-chave: Foresia; Descortezadores; Acaros; Depredadores; Phoresy; Bark beetles; Mites; Predators; Entomología y Acarología; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2158

Dinámica poblacional de Dactylopius opuntiae  (Cockerell) y sus enemigos naturales en Tlalnepantla, Morelos
Provedor de dados: 32
Autores: Venegas Rico, Juan Manuel.
Las ―cochinillas del nopal‖ (Hemiptera: Dactylopiidae), son plagas primarias en los cultivo de nopal verdura  (Opuntia ficus-indica) en la parte central de México y no hay un método satisfactorio para su manejo. Los  estudios sobre su identidad taxonómica y  sus enemigos naturales son escasos yno existen trabajos sobre su  dinámica poblacional y factores de regulación. En el presente trabajo se planteó conocer las especies  presentes de Dactylopius y sus enemigos naturales, además de conocer sus dinámicas poblacionales y el  efecto de los enemigos naturales y factores climáticos en una de las áreas de mayor producción de nopal  verdura en México (Tlalnepantla, Morelos). Se seleccionaron 30 sitios distribuidos en esta región para  conocer las especies de...
Tipo: Tesis
Palavras-chave: Control biológico; Depredadores nativos Biological control; Predators.
Ano: 2012
URL: http://hdl.handle.net/10521/1024

Hábito alimentar de espécies de Thysanoptera associadas ao cajueiro.
Provedor de dados: 14
Autores: SILVA, D. L. V. da; MESQUITA, A. L. M.; MOTA, M. do S. C. de S.; BERNARDINO, C. R. F.
bitstream/item/211059/1/AAC19006.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Fitófagos; Predadores; Tripes; Anacardium Occidentale; Predators.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117721

Control of the pH for marine microalgae polycultures: A key point for CO2 fixation improvement in intensive cultures
Provedor de dados: 5
Autores: Gales, Amandine; Triplet, Sebastien; Geoffroy, Thibault; Roques, Cécile; Carre, Claire; Le Floc'H, Emilie; Lanfranchi, Mélissa; Simier, Monique; Roque D'Orbcastel, Emmanuelle; Przybyla, Cyrille; Fouilland, Eric.
Recently, CO2 recycling for the production of valuable microalgae has acquired substantial interest. Most studies investigating CO2 conversion efficiency in algal cultures were based on single species, although a stabilising effect of algal diversity on biomass production was recently highlighted. However, addition of CO2 into polyalgal cultures requires a careful control of pH; performance of CO2 conversion, growth and carbon biomass production are affected by pH differently, depending on the species of microalgae. This study investigates the efficiency of CO2 conversion by natural marine algal assemblage cultivated in open, land-based raceways (4.5 m3, 10 m2), working as high rate algal ponds (HRAP). Ponds were enriched with nitrogen and phosphate, pure...
Tipo: Text
Palavras-chave: Carbon yield; Microalgal diversity; PH; Predators.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00612/72403/71392.pdf

Analyse des pratiques, contraintes et performances d'élevage de l'huître creuse Crassostrea gigas, en 2001, sur différentes concessions en eau profonde de la Baie de Quiberon : enquête auprès de 18 concessionnaires et plongées sur 18 semis d'huîtres de 2 ans, en juin et octobre 2001
Provedor de dados: 5
Autores: Mazurie, Joseph; Foucart, Marie; Langlade, Aime; Bouget, Jean-francois; Fleury, Pierre-gildas; Joly, Jean-pierre; Martin, Anne-genevieve.
This study deals with rearing methods, growth and mortality performances, and problems encountered by the oyster farmers from Quiberon Bay (2800 ha of leases) : it relies on a survey achieved in july 2001, about 18 oyster farmers, and 2 diving campaigns (july and october 2001) on 2 years old oyster batches from the same farmers.  The analysed enterprises vary in particular by the location and depth of their concession inside the bay, but also by their rearing scheme : a majority favours seedings with 18 month old oysters or more, according to prices and availability of oysters supplies. The duration until marketable size and mean mortalities seem to have increased since a preceding inquiry in 1986.  The main constraint, affecting priorly the south border...
Tipo: Text
Palavras-chave: Rearing practices; Density; Predators; Mortality; Growth; Bay of Quiberon; Crassostrea gigas; Cupped oyster; Pratiques culturales; Densité; Algues; Prédateurs; Mortalité; Croissance; Baie de Quiberon; Crassostrea gigas; Huître creuse.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/rapport-6103.pdf

Importance of ecological interactions during wastewater treatment using High Rate Algal Ponds under different temperate climates
Provedor de dados: 5
Autores: Galès, Amandine; Bonnafous, Anaïs; Carré, Claire; Jauzein, Vincent; Lanouguère, Elodie; Le Floc'H, Emilie; Pinoit, Joanna; Poullain, Clothilde; Roques, Cécile; Sialve, Bruno; Simier, Monique; Steyer, Jean-philippe; Fouilland, Eric.
Several studies focused on wastewater treatment in High Rate Algal Ponds (HRAP) suggest that highly variable climatic conditions cause large variations of microalgal biomass productivity. In the present study, we show that similar carbon, nitrogen and phosphorus removal efficiencies were reached in different HRAPs treating urban wastewaters located in two different temperate (Mediterranean and oceanic) climates. Furthermore, similar ecological successions were observed in these HRAPs. During the start-up phase, the consumption of organic matter by detritivores, already present in the wastewater, appears to be necessary for the microalgae to grow within two weeks in spring. The growth of the rapid-growing species, Chlorella sp., followed by the...
Tipo: Text
Palavras-chave: Microalgae; Predators; Bacteria; Urban effluents; Ammonia and phosphate removal.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00490/60210/63713.pdf

Factors affecting bacterial biomass and growth in the Duplin River estuary and coastal Atlantic Ocean.
Provedor de dados: 5
Autores: Fallon, R; Newell, S; Sherr, B; Sheer, E.
Bacterial numbers and growth rates were measured in coastal, planktonic systems of the Western Atlantic ocean. Seasonal responses in growth rates of the bacterial assemblage were present at some sites, but these may be related to seasonal changes in substrate supply rather than to changes in temperature. Bacterial growth rates tended to decline with increasing distance from shore. There was evidence for predator-prey population cycles in the bacteria and &lt; 17 mu m protozoa in the Duplin River Estuary which may indicate that the bacterial assemblage serves as prey for protozoan populations. In summer, a significant negative correlation between mu (instantaneous growth rate) and cell numbers in the bacterial assemblage indicated that substrate limitation...
Tipo: Text
Palavras-chave: Protozoa; Plankton; Bacteria; Predators; Grazing; Temperature effects; Seasonal variations; Limiting factors; Interspecific relationships; Nutrients (mineral); Growth.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-955.pdf

Dark clouds and their silver linings: exotic generalist predators in augmentative biological control
Provedor de dados: 82
Autores: CLERCQ,PATRICK DE.
Several polyphagous arthropod predators are commercially available for augmentative biological control targeting mite and insect pests in a variety of cropping systems. A number of these predators are not native to the area of release. The current paper discusses benefits and risks of using exotic generalist predators as biocontrol agents. The fact that polyphagous predators are easily reared on unnatural foods and can be used against different pest species makes them attractive for commercialization. Polyphagous or facultatively phytophagous predators have less difficulty in maintaining their populations at low prey densities and can sometimes be introduced in the crop before the target pest is present, thus preventing the buildup of pest populations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Augmentation; Predators; Polyphagy; Non-target effects.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000200001

Diet of four annual killifishes: an intra and interspecific comparison
Provedor de dados: 83
Autores: Laufer,Gabriel; Arim,Matías; Loureiro,Marcelo; Piñeiro-Guerra,Juan Manuel; Clavijo-Baquet,Sabrina; Fagúndez,César.
We examined the diet of 4 annual fishes, Austrolebias viarius, Austrolebias cheradophilus, Austrolebias luteoflammulatus and Cynopoecilus melanotaenia inhabiting temporal ponds of southeastern Uruguay, by analysis of stomach contents. Fishes were captured from fifty ephemeral ponds of Castillos Lagoon basin, in the region of the Humedales del Este. We identified 13099 individual prey items extracted from 669 stomachs of the four captured species. In the studied system, annual killifishes represents the most abundant and conspicuous top predators. Killifishes are generalist key predators at the ephemeral ponds of the studied system, consuming mostly aquatic items. Zooplancton represented the bulk of the diet in the four analyzed species, followed by eggs,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual fishes; Foraging behavior; Predators; Food analysis.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000100010

The Invasive Rapa Whelk Rapana venosa (Valenciennes 1846): Status and potential ecological impacts in the Rio de la Plata estuary, Argentina-Uruguay
Provedor de dados: 20
Autores: Giberto, D.A.; Bremec, C.; Schejter, L.; Schiariti, A.; Mianzan, H.W.; Acha, E.M.
Recent range extensions of the invasive rapa whelk Rapana venosa, biological data of the population and possible ecological impacts on the food webs of the Rio de la Plata estuary are presented. A total of 41 rapa whelks and 21 egg capsules were collected between February 2004 and March 2006. Specimens were found all over the mixohaline waters of the estuary, with records off Montevideo, Samborombon Bay and off Punta Rasa. Specimens ranged between 28 and 120 mm shell length. Almost all R. venosa presented epibionts all over the shell, suggesting an exposed lifestyle. Egg-masses were attached to specimens of R. venosa, debris and plastic garbage. The spatial distribution of R. venosa within the estuary was coupled with the spatial distribution of Mactra...
Tipo: Journal Contribution
Palavras-chave: Estuaries; Introduced species; Predators; Food webs; Estuaries; Predators; Food webs; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_10973.
Ano: 2006
URL: http://hdl.handle.net/1834/1572

Different property rights regimes in the Lake Victoria multiple species fishery
Provedor de dados: 20
Autores: Brown, G.; Berger, B.; Ikiara, M.
Greater ecosystem complexity is recognized by studying a two species predator-prey model under two property rights regimes: free entry and a system such as individual quotas which execute an economically optimal solution. A bottom-up management experiment is discussed in the context of Lake Victoria fisheries.
Tipo: Report
Palavras-chave: Freshwater fish; Predators; Resource management; Predators; Resource management; Fisheries.
Ano: 2004
URL: http://hdl.handle.net/1834/1273

Catalogue des ennemis naturels des macrophytes flottants Pistia stratiotes, Salvinia molesta et Eichhornia crassipes
Provedor de dados: 20
Autores: Sankaré, Yacouba.
Nous avons déterminé, à partir d'une étude bibliographique et de nos observations sur le terrain quarante deux espèces animales comprenant essentiellement des mollusques et des insectes. Ces animaux s'attaquent aux plantes flottantes Eichhornia crassipes, Pistia stratiotes et Salvinia molesta. Ils consomment ou détruisent indifféremment les plantes précitées sauf Neochetina bruchi, Neochetina eichhorniae et Sameodes albiguttalis qui s'attaquent spécifiquement à E. crassipes; Neohydronomus putchellus, Lanistes guinaicus et Pila africana broutent préférentiellement P. stratiotes; Cyrtobagous salviniae, Cyrtobagous singularis et Paulinia acuminata consomment uniquement S. molesta.
Tipo: Journal Contribution
Palavras-chave: Aquatic plants; Marine invertebrates; Predators.
Ano: 1991
URL: http://hdl.handle.net/1834/5740

Different property rights regimes in the Lake Victoria multiple species fishery
Provedor de dados: 20
Autores: Berger, B.; Brown, G.; Ikiara, M.
Greater ecosystem complexity is recognized by studying a two species predator-prey model under two property rights regimes: free entry and a system such as individual quotas which execute an economically optimal solution. A bottom-up management experiment is discussed in the context of Lake Victoria fisheries.
Tipo: Report
Palavras-chave: Freshwater fish; Predators; Resource management; Predators; Resource management; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2004
URL: http://hdl.handle.net/1834/1273

Evaluación del potencial antidepredador de los extractos orgánicos crudos de quince esponjas marinas
Provedor de dados: 20
Autores: Arias, J.; Santos, M.; Newmark Umbreit, F.
Todos los organismos han desarrollado evolutivamente mecanismos que les permiten defenderse de otros, garantizar su permanencia temporalmente y evitar el ataque de depredadores. Uno de estos mecanismos es la defensa química, mediante la cual los depredadores potenciales de los organismos son disuadidos de consumir su presa. En este estudio se evaluó la capacidad disuasora de los extractos orgánicos crudos de quince esponjas marinas del Caribe colombiano, sobre el pez arrecifal generalista Stegastes partitus. Se encontró que el extracto de Cribrochalina infundibulum actuó como un atrayente para estos depredadores potenciales, mientras que sólo los extractos de las esponjas Dragmacidon reticulata, Petromica cyocaliptoides, Neopetrosia proxima, Myrmekioderma...
Tipo: Journal Contribution
Palavras-chave: Sponges; Predators; Feeding; Chemical ecology; Feeding deterrents.
Ano: 2011
URL: http://hdl.handle.net/1834/4399

Calamares omastréfidos (Cephalopoda, Ommastrephidae).
Provedor de dados: 20
Autores: Brunetti, N.E.; Ivanovic, M.L.; Elena, B.
An update of the knowledge on the three most important ommastrephid species that inhabit the SW Atlantic: Illex argentinus, Martialia hyadesi and Ommastrephes bartramii, is presented. Up to the moment, only I.argentinus was intensively studied. Its distribution, population structure, reproduction, growth and paralarval development are analyzed, togheter with other aspects of its biology, such as feeding, predators and parasites. Also its utilization for human consmption is considered. Regarding M.hyadesi and O.bartrami, information on their distribution and biology is presented.
Tipo: Book Section
Palavras-chave: Animal morphology; Geographical distribution; Reproduction; Fecundity; Growth; Feeding; Predators; Parasites; Population structure; Geographical distribution; Growth; Feeding; Predators; Population structure; Animal morphology; Reproduction; Fecundity; Parasites; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_421; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_15725; Http://aims.fao.org/aos/agrovoc/c_5574.
Ano: 1998
URL: http://hdl.handle.net/1834/2576

Estudio comparado de la alimentación entre algunos predadores de alto nivel trófico de la comunidad marina del norte y centro de patagonia
Provedor de dados: 20
Autores: Koen Alonso, M.
The comparative analysis of the food habits between top predator allows the evaluation of how these species use the trophic resources. They also make possible the study of potentially competitive relationships and the role of these predators in the regulation and structure of the community. The marine community of northern and central Patagonia is structured on the tri-trophic system composed by the Argentine anchovy (Engraulis anchoita), the Argentine shortfin squid (Illex argentinus), and Argentine hake (Merluccius hubbsi). Several marine mammals and elasmobranchs use these species as food resources. For this reason, the objective of this work was to analyze comparatively the diet of the South American sea lion (Otaria flavescens), the dusky dolphin...
Tipo: Theses and Dissertations
Palavras-chave: Feeding; Predators; Diets; Trophic relationships; Feeding; Predators; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_6163.
Ano: 1999
URL: http://hdl.handle.net/1834/2954

The life cycle of &lt;i&gt;Anguillicola crassus&lt;/i&gt;
Provedor de dados: 27
Autores: De Charleroy, D.; Grisez, L.; Thomas, K.; Belpaire, C.; Ollevier, F.P.
For some years now the parasitic swim bladder nematode &lt;i&gt;Anguillicola crassus&lt;/i&gt; of the European eel &lt;i&gt;Anguilla anguilla&lt;/i&gt; L., has been reported from several European countries. The entire life history of this parasite has recently been elucidated in our laboratory. Young larvae leave the swim bladder of the host via the pneumatic duct and reach the water through the digestive tract. They are ingested by small copepods (Cyclopoida), which act as intermediate hosts. Larvae remain in the hemocoel until the copepods are eaten by the final host, the European eel. Larvae penetrate through the intestinal wall and reach the swim bladder where they develop into adults. When infected copepods are eaten by other small fish, such as carp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological vectors; Disease transmission; Fish diseases; Food chains; Freshwater fish; Hosts; Life cycle; Parasites; Parasitic diseases; Predation; Predators; Swim bladder; Anguillicola crassus.
Ano: 1990
URL: http://www.vliz.be/imisdocs/publications/3074.pdf

Glyphosate Impact on Arthropods Associated to Roundup Ready and Conventional Soybean (Glycine max L.)
Provedor de dados: 87
Autores: PEREIRA,J.L.; PEREIRA,R.R.; RESENDE-SILVA,G.A.; JAKELAITIS,A.; SILVA,A.A.; PICANÇO,M.C.
ABSTRACT: This study aims to evaluate the impact of glyphosate-resistant soybean and its management with glyphosate on the canopy arthropod community. We study the direct impact of the insertion of the resistance gene and the indirect impact of management practices, specifically herbicide application. To do this, we use the following treatments: non-GM and GM soybean with mechanical weed control and GM soybean with one and three applications of glyphosate. Arthropods in the crop canopy were sampled over time in all treatments. The incorporation of the glyphosate resistance gene did not affect the richness and abundance of arthropods in the plant canopy. Glyphosate application reduced the richness of predators and chewing and sucking phytophagous arthropods...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Transgenics; Phytophagous; Predators; Parasitoids; Detritivores.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100234

REFERENCE OF 1996 U.S. REGIONAL SHEEP HEALTH AND MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Wineland,   Nora.
In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states.   The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were approximately 8,433,400 sheep as of January...
Tipo: Report
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Regions; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32751

REFERENCE OF 1996 U.S. SHEEP HEALTH AND MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Wineland,   Nora.
In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states. The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were 82,040 operations with sheep as of 1995;...
Tipo: Report
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32743

Cymatium muricinum and other ranellid gastropods: major predators of cultured tridacnid clams.
Provedor de dados: 31
Autores: Govan,   Hugh.
Tipo: Report
Palavras-chave: Predators; Predation; Clam culture; Feeding behaviour; Reproduction; Recruitment; Environmental factors; Cymatium muricinum; Tridacnidae; Farm Management.
Ano: 1995
URL: http://purl.umn.edu/44728

New records of thrips species on mango and natural enemies associated
Provedor de dados: 94
Autores: Matos,Sidnéia Terezinha Soares de; Andrade,Daniel Júnior de; Zanata,Renan Moisés Paneghini; Azevedo,Emiliano Brandão de; Lima,Élison Fabrício Bezerra.
Abstract  The mango tree (Mangifera indica L.), native to Asia, is expanding in Brazil. However, research related to phytophagous organisms and natural enemies associated with this fruit are scarce in the country. The aim of this work was to report new species of thrips-pest and natural enemies associated with mango tree inflorescence. The work was carried out in a Tommy Atkins mango orchard located in the municipality of Jardinópolis, São Paulo, Brazil. The arthropods found in malformed inflorescences were collected and identified. Frankliniella gemina Bagnall, Frankliniella distinguenda Bagnall (Thysanoptera: Thripidae) and Haplothrips gowdeyi (Franklin) (Thysanoptera: Phlaeothripidae) thrips-pest species were recorded for the first time associated with...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Thysanoptera; Pest; Predators.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100404

Teste do efeito de borda na predação de ninhos naturais e artificiais no Cerrado
Provedor de dados: 103
Autores: França,Letice C.; Marini,Miguel Â.
The Cerrado is still one of the most important ecosystems in Brazil, even though more than 50% of its area has been altered or converted to pastureland and plantations. Despite its intense degradation, few ecological processes that might affect its biodiversity have been evaluated. The goal of this study was to test the edge effect on the predation rates at natural and artificial nests, at the Ecological Station of Águas Emendadas, Federal District, Brazil. Natural nests were found and monitored every three to four days from September to December of 2004 in the interior and at the edge of the reserve. Artificial nests were placed at four distances from the edge (0, 500, 1000 and 2000 m) in three spatial replicates in September and again in December of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brood parasitism; Nest predation; Plasticine eggs; Predators.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200006

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

แมลงศัตูธรรมชาติที่ใช้ประโยชน์บนดอยอ่างขาง
Provedor de dados: 106
Autores: Cherd Chooyoung.
Tipo: Collection
Palavras-chave: Predators; Parasite; Pathogens; Eocanthecona robusta; Coccinella septempunctata; Mallada basalis; Coenosia exigua; Diadegma semiclausum; Cotesia sp.; Aphidius sp.; แมลงตัวห้ำ; แมลงตัวเบียน; จุลินทรีย์; มวนพิฆาต; ด้วงเต่าเจ็ดจุด; แมลงช้างปีกใส; แมลงวันเสือ; แตนเบียนหนอนใยผัก; แตนเบียนหนอนกะหล่ำ; แตนเบียนเพลี้ยอ่อน; สถานีเกษตรหลวงอ่างขาง.
Ano: 2009
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5063

การใช้วิธีทางนิเวศวิศวกรรมเพิ่มความหลากชนิดของอาร์โทรปอตในระบบนิเวศนาข้าว
Provedor de dados: 106
Autores: Jintana Chaiwong; Wantana Srirattanasak; Sukanya Aranmitr.
ecosystemwith flowering plants around the paddy field for build up the habitat and food sources of helpful insectsbefore growing rice were conducted in Ang Thong, Nakhon Nayok and Chiang Rai province.The experiment plots were done during May to October 2011. Sampling arthopod by D-vac sucking machine in seedling, tillering, booting and heading stages. Results showed that the most of arthropod are natural enemies species more than pest species. Shannon-Wiener diversity index in the ecological engineering plots had increased where as the control plots had decreased. It found that, planting the flowering plants around the bund could be increased the arthropod in the paddy field. Especially planting the flowers could increased the number of predators and...
Tipo: PhysicalObject
Palavras-chave: Diversity Index; Ecological engineering; Natural enemies; Planting on the ridge; Insect Vacuum D-vac; Planting flowers for insect repellent; Pests; Predators; Parasitoids; ดัชนีความหลากชนิด; นิเวศวิศวกรรม; ศัตรูธรรมชาติ; การปลูกพืชบนคันนา; เครื่องดูดแมลง D-vac; การปลูกดอกไม้เพื่อไล่แมลง; แมลงศัตรู; ตัวห้ำ; ตัวเบียน.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5437

ความสามารถในการห้ำและชีววิทยาของด้วงตัวห้ำ Stethorus indira kapur ต่อไรสามชนิด
Provedor de dados: 106
Autores: Sirilak Lankaew; Nutcharee Siri.
The efficacy of Stethorus indira Kapur feeding on three mite species, mulberry red mite; Tetranychus truncatus Ehara, two spotted spider mite; Tetranychus urticae Koch and african red mite; Eutetranychus africanus Tucker were conducted under laboratory condition. The results showed that the 4th stage larva S. indira was able to consume African red mite more than adult stage. The 4th stage larva consumed eggs and nymphs of 148.85 eggs and 49.75 nymphs per day. The adult stage consumed 146.85 eggs and 49.35 nymphs per day followed by two spotted spider mite but not significantly to mulberry red mite. The biological characteristic of S. indira Kapur feeding on african red mite was higher than mulberry red mite and there were the survival rate, sex ratio,...
Tipo: PhysicalObject
Palavras-chave: Predatory beetle; Stethorus indira kapur; Coccinellid beetle; Predators; Mulberry red mite; Tetranychus truncatus; Two spotted spider mite; African red mite; Pest control; Biological control; Biological characteristic; Predation efficacy; Tetranychus urticae; Eutetranychus africanus; ด้วงตัวห้ำ; ไรแดงหม่อน; ไรสองจุด; ไรแดงแอฟริกัน; การควบคุมศัตรูพืช; การควบคุมโดยชีววิธี; ลักษณะทางชีววิทยา; ประสิทธิภาพการห้ำ.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5807

Desenvolvimento e sobrevivência ninfal de Podisus nigrispinus (Dallas) e Supputius cincticeps (Stål) (Heteroptera, Pentatomidae) em diferentes temperaturas
Provedor de dados: 104
Autores: Didonet,Julcemar; Zanuncio,José Cola; Sediyama,Carlos S.; Picanço,Martelo C.
The effect of temperature on the development of Podisus nigrispinus (Dallas, 1851) and Supputius cinctceps (Stål, 1860) was studied in order to adjust equations to predict the development of these predators under 18, 20, 25, 30, 32 and 35º±0.2ºC, relative humidity of 65±10% and photophase of 12 hours. Incubation period of the eggs and duration and viability of nymphal stage were quadratically influenced by temperature while egg viability decreased linearly with increased temperature. The best temperature for egg development was 29ºC for both species and for nymphal development of P. nigrispinus and S. cincticeps they were 29º and 28ºC respectivelly. Nymphal viability was highly affected by extreme temperatures, with optima around 24ºC for S. cincticeps and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heteroptera; Pentatomidae; Podisus nigrispinus; Supputius cincticeps; Nymphal development; Predators.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300005

Ecologia de mosquitos (Diptera, Culicidae) em criadouros naturais e artificiais de área rural do norte do Paraná, Brasil: VIII. Influência das larvas predadoras (Toxorhynchites sp., Limatus durhamiie Culex bigoti) sobre a população de larvas de Culex Quinquefasciatus e Culex eduardoi
Provedor de dados: 104
Autores: Lopes,José.
Larvae of Culex eduardoi, Culex bigoti, Limatus durhamii and Toxorhynchites were collected in a tyre that had been placed in a wood by a river bank. These larvae were present coexisting and in an individualized form. It was observed that Toxorhynchites, Culex bigoti and Limatus durhamii were efficient in reducing the other two species's population. Culex bigoti and Toxorhynchites showed preference for Culex quinquefasciatus larvae, while Limatus durhamii preferred Culex eduardoi. The most efficient predator was Toxorhynchites, and the least efficient was Limatus durhamii. The reduction of the preys' population density was statistically meaningful in the face of the three species considered as predators.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicidae; Biological contral; Predators; Larvae; Artificial breeding sites.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300018

Distance from the edge of forest fragments influence the abundance of aphidophagous hoverflies (Diptera: Syrphidae) in wheat fields
Provedor de dados: 1
Autores: Bortolotto, Orcial Ceolin; Menezes Junior, Ayres de Oliveira; Hoshino, Adriano Thibes; Campos, Thiago Augusto.
This study aimed to evaluate the influence of the distance from the edge of native forests on the abundance of aphidophagous hoverflies in wheat fields. The study was conducted in four commercial fields in the North of Paraná State, Brazil, during the wheat crop season of 2009. Two transects were surveyed parallel to the edge of the forest at two distances: 25 (“near”) and 525 meters (“far”) from the edge. The abundance of hoverflies was compared using a χ2 test (p ≤ 0.05). In total, 1,845 hoverflies adults were collected, which represented 15 species and three genera. The most abundant species was Allograpta exotica (60.43%), followed by Toxomerus dispar (17.78%) and Toxomerus watsoni (7.26%) (Diptera: Syrphidae). An important inference was that all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agronomia; Fitossanidade; Entomologia Agrícola conservative biological control; Predators; Wheat pests; Landscape preservation; Refuge area.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27711

Biological control of phytophagous arthropods in the physic nut tree Jatropha curcas L. in Brazil
Provedor de dados: 1
Autores: Fernandes, Flávio Lemes; Fernandes, Maria Elisa de Sena; Lopes, Elisângela Novais; Venzon, Madelaine; Diniz, Juno Ferreira da Silva; Dias, Luis Antônio dos Santos.
Jatropha curcas has a high biofuel oil content, which could replace polluting fuels, and has great potential for large scale monoculture cultivation in the conventional system. We explored the occurrence, spatial distribution and the functional response of the main phytophagous species of this plant and their natural enemies to explore the potential for conservative biological control. We began sampling phytophagous species and predators when J. curcas plants were six months old. The most common species of phytophagous insects were nymphs and adults of Empoasca kraemeri, followed by Frankliniella schultzei and Myzus persicae. Among the predators, Ricoseius loxocheles, Iphiseioides zuluagai, Araneidae, larvae and adults of Psyllobora vigintimaculata and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Predators; Parasitoids; Phytophagy; Spatial distribution; Functional response Entomologia Agrícola.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17562

Potential of Tyrophagus putrescentiae (Schrank) (Astigmata: Acaridae) for the Biological Control of Lasioderma serricorne (F.) (Coleoptera: Anobiidae)
Provedor de dados: 52
Autores: Canevari,Glauco da Cruz; Rezende,Fernanda; Silva,Rafael Braga da; Faroni,Lêda Rita D'Antonino; Zanuncio,José Cola; Papadopoulou,Smaro; Serrão,José Eduardo.
This work investigated the potential of Tyrophagus putrescentiae (Schrank) (Astigmata: Acaridae) to control Lasioderma serricorne (F.) (Coleoptera: Anobiidae) in the laboratory. L. serricorne is the most destructive insect pest ever found on stored tobacco. The experimental delineation had 33 arenas being each experimental unit with 11 arenas of experiments with eggs, larva of L. serricorne with the density of T. putrescentiae maintained constant, where from 11 of these arenas, eight were for the analysis of predation and three to evaluate the natural mortality of the insect. The highest predation rate was found during the larval stage with, approximately, 54, 68 and 78% mortality of L. serricorne from the fourth until the sixty day of predation. These...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Lasioderma serricorne; Predators; Stored products; Tyrophagus putrescentiae.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200017

Species Diversity and Community Structure of Arthropod Pests and Predators in Flax, Linum Usitatissimum L. from Darjeeling (India)
Provedor de dados: 52
Autores: Pal,Suprakash; Mandal,Rupsanatan; Sarkar,Indrajit; Ghimiray,Tulsi Saran; Sharma,Binay Raj; Roy,Ayon; Roy,Suvendu Kumar; Chakraboorty,Gautam; Mitra,Sabyasachi.
ABSTRACT The species richness and relative abundances of different aboveground plant-dwelling pest and predator species were assessed in flax (Linum usitatissimum L.) ecosystem under mid-hill conditions of eastern Himalayas. The experiment was conducted in winter seasons during 2004-2013 at the Regional Research Station (Hill Zone), Uttar Banga Krishi Viswavidyalaya, Kalimpong, West Bengal, India. Twenty five species of phytophagous arthropods under 13 families were observed belonging to 6 different orders. The gram pod borer, Helicoverpa armigera (Noctuidae: Lepidoptera), aphid, Myzus persicae (Aphididae: Hemiptera), shield bug, Plautia fimbriata (Pentatomidae: Hemiptera) and leaf webber, Nacoleia sp. (Pyralidae: Lepidoptera) were found as the most common...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flax; Pests; Predators; Species richness; Abundance.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100459

Impact of integrated pest management on the population of leafminers, fruit borers, and natural enemies in tomato
Provedor de dados: 65
Autores: Miranda,Moacyr Mascarenhas Motta; Picanço,Marcelo Coutinho; Zanuncio,José Cola; Bacci,Leandro; Silva,Ézio Marques da.
The objective of this work was to evaluate the impact of integrated pest management (IPM) in the productivity of the tomato and in the populations of leafminers, fruit borers, and natural enemies in tomato crops. The treatments were calendar (spraying twice weekly with insecticides and fungicides), IPM (spraying when action thresholds were achieved), and control (no pesticide was applied). IPM was the most efficient system of pest control due to presenting similar productivity and 65.6% less pesticide applications than in the calendar. The attack of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) and Liriomyza spp. (Diptera: Agromyzidae) to the leaves only achieved the action threshold in the final phase of the cultivation. The main fruit borer was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentun; Neoleucinoides elegantalis; Predators; Parasitoids; Action thresholds.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000100033

Edaphic mesostigmatid mites (Parasitiformes, Mesostigmata) in a region of the Pampa biome of the state of Rio Grande do Sul, Brazil
Provedor de dados: 65
Autores: Duarte,Adriane da Fonseca; Moreira,Grazielle Furtado; Cunha,Uemerson Silva da; Siqueira,Paulo Ricardo Ebert; Moraes,Gilberto José de.
ABSTRACT: The diversity of edaphic mites in Brazilian natural environments is little known, especially in the Pampa biome, in southern region of Brazil. The objective of this study was to evaluate the diversity and abundance of edaphic fauna of mesostigmatid mites in a region of the Pampa biome of the state of Rio Grande do Sul. Soil samples were collected in the municipality of Aceguá, in 2012 and 2013. Mites were extracted using Berlese-Tullgren modified funnels. In total, 1900 mesostigmatid mites were collected, representing 44 species from 23 genera and 10 families. The most abundant families were Rhodacaridae, Ologamasidae and Laelapidae, with respectively 903, 578 and 214 specimens, corresponding respectively to 47.5, 30.4 and 11.3% of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Predators; Biological control; Biodiversity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000200152