Predator Prey Interaction
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Interaction between Musca domestica L. and its predator Muscina stabulans (Fallén) (Diptera, Muscidae): effects of prey density and food source abundance
Interaction between Musca domestica L. and its predator Muscina stabulans (Fallén) (Diptera, Muscidae): Effects of prey density and food source abundance. The objective of this work was to evaluate the influence of prey density and food source abundance on the predatory behavior of Muscina stabulans over M. domestica. Three predator/prey proportions were ev
Rev. Bras. entomol.. Publicado em: 2013-03
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2. Organização trófica da comunidade de peixes de poças de maré da Praia dos Castelhanos (ES), Atlântico sudoeste tropical / Trophic organization of the tidepool fish community of Praia dos Castelhanos (ES), southwestern tropical Atlantic
The identification of the trophic groups is fundamental to understanding the factors responsible for organizing and structuring the communities. Accordingly, the present study was conducted in the tidepools of Praia dos Castelhanos, located in the Espírito Santo State, southeastern Brazil, in order to describe the trophic organization of the fish community,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
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3. Interação trófica entre Podisus nigrispinus e Supputius cincticeps (Heteroptera: Pentatomidae) / Trophic interaction between Podisus nigrispinus and Supputius cincticeps (Heteroptera: Pentatomidae)
Prey may be more or less consumed by control biologic agents and presents three kinds of interspecific interactions, (1) synergism, increase of mortality of prey comparing to each natural enemy independently, when the foraging of one species facilitates the capture of pest by another natural enemies. (2) Total mortality of the pest to natural enemies equals
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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4. Dinâmica de populações em redes ecológicas : persistências, catástrofes e extinções / Population dynamics in ecological networks : persistence, catastrophes and extinctions
All living organisms interact with individuals of its own species and also with those of other species, forming a complex network of interactions that have an important role in the preservation of the biodiversity. Understanding the underlying behavior and stability of these systems is of fundamental importance to the conservation of these resources. In this
Publicado em: 2011
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5. Palms use a bluffing strategy to avoid seed predation by rats in Brazil.
The goal of this study was to ascertain why the production of variable seediness is advantageous for Attalea phalerata palms. Our hypothesis was that variation reduces seed predation by the spiny rats Thrichomys pachyurus and Clyomys laticeps. Although there is a positive correlation between endocarp size and number of seeds, endocarps sometimes contain more
Biotrópica. Publicado em: 2011
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6. Coloração ultravioleta e pigmentária em aves de Uberlândia-MG / Ultraviolet and pigmentary colouration in birds of the Uberlândia MG
Bird feathers exhibit colors that are important for intra- and inter-specific communication. These colours transmit information that be conclusive for sexual selection, predator/prey relations or to indicate the nutritional condition of the individual, besides other aspects. Information about the functionality of plumage colouration in Brazilian birds is pra
Publicado em: 2009
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7. Resposta funcional de Cosmoclopius nigroannulatus (Hem.: Reduviidae) a diferentes densidades de ninfas de Spartocera dentiventris (Hem.: Coreidae)
Foi avaliada a resposta funcional do predador Cosmoclopius nigroannulatus Stal (Hemiptera: Reduviidae) em ninfas de 1º ínstar de Spartocera dentiventris (Berg) (Hemiptera: Coreidae), ambos associados à Nicotiana tabacum. O experimento foi realizado em condições de laboratório: 27 ± 1ºC; 80 ± 5% UR; fotofase de 12 h. Dez adultos recém-emergidos de c
Brazilian Journal of Biology. Publicado em: 2004-05
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8. Morphometric analysis, mimicry, and color polymorphism in five species of Chauliognathus Hentz (Coleoptera, Cantharidae)
This study presents data on morphometric variation for length and width of elytra in tive sympatric species of the genus Chauliognathus Hentz, 1830: C. flavipes Fabricius, 1781, C. octomaculatus Pie, 1915, C. expansus Waterhouse, 1878, C. fallax Germar, 1824 and C. lineatus Zwetsch & Machado, 2000. The meaning of this variation is discussed in the light of t
Revista Brasileira de Zoologia. Publicado em: 2001-09
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9. Alcaloides pirrolizidinicos utilizados por insetos na defesa quimica contra predadores vertebrados e invertebrados
Pyrrolizidine Alkaloids (PAs) are secondary plant compounds with a unique role in the interaction between plants, herbivorous insects, and their natural enemies relationships. The chemical defense due to PAs in Arctiidae moths and butterflies of sub-families Danainae and Ithomiinae (Nymphalidae) has been investigated with regards to vertebrate and invertebra
Publicado em: 2000
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10. Bacterial Predator-Prey Interaction at Low Prey Density
A bacterial predator-prey interaction was studied using Bdellovibrio and bioluminescent prey bacteria. The attacking bdellovibrio causes decay of bioluminescence, which is correlated with bdellovibrio penetration into the prey. The behavior of the prey and predator populations over time was found to be well described by a Lotka-Volterra model. By using this
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11. Community-wide distribution of predator–prey interaction strength in kelp forests
The strength of interactions between predators and their prey (interaction strength) varies enormously among species within ecological communities. Understanding the community-wide distribution of interaction strengths is vital, given that communities dominated by weak interactions may be more stable and resistant to invasion. In the oceans, previous studies
The National Academy of Sciences.
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12. The contribution of trait-mediated indirect effects to the net effects of a predator
Many prey modify traits in response to predation risk and this modification of traits can influence the prey's resource acquisition rate. A predator thus can have a “nonlethal” impact on prey that can lead to indirect effects on other community members. Such indirect interactions are termed trait-mediated indirect interactions because they arise fro
The National Academy of Sciences.