Results 261 to 270 of about 3,960,033 (316)

ALTERNATIVE PREY AND THE DYNAMICS OF INTRAGUILD PREDATION: THEORETICAL PERSPECTIVES

Ecology, 2007
A rich body of theoretical literature now exists focused on the three-species module of intraguild predation (IGP), in which a top predator both attacks and competes with an intermediate predator. Simple models of intraguild predation are often unstable, either because one consumer is excluded, or because sustained oscillations emerge from long ...
Robert D, Holt, Gary R, Huxel
openaire   +4 more sources

Collembola as alternative prey sustaining spiders in arable ecosystems: prey detection within predators using molecular markers

Molecular Ecology, 2003
AbstractCollembola comprise a major source of alternative prey to linyphiid spiders in arable fields, helping to sustain and retain these predators as aphid control agents within the crop. Polymerase chain reaction primers were developed for the amplification, from spider gut samples, of DNA from three of the most abundant species of Collembola in ...
N, Agustí, S P, Shayler, J D, Harwood, I P, Vaughan, K D, Sunderland, W O C, Symondson   +5 more
openaire   +4 more sources

Alternative Food, Switching Predators, and the Persistence of Predator‐Prey Systems

The American Naturalist, 2001
Sigmoid functional responses may arise from a variety of mechanisms, one of which is switching to alternative food sources. It has long been known that sigmoid (Holling's Type III) functional responses may stabilize an otherwise unstable equilibrium of prey and predators in Lotka-Volterra models.
van Baalen, J.N., Krivan, V., van Rijn, P.C.J., Sabelis, M.W.   +3 more
openaire   +6 more sources

Metabolic specialisation on preferred prey and constraints in the utilisation of alternative prey in an ant-eating spider.

Zoology, 2016
Trophic specialists are expected to possess adaptations that increase the efficiency of handling preferred prey. Such adaptations may constrain the ability to utilise alternative prey. Here we tested whether the ant-eating spider Euryopis episinoides possesses metabolic specialisations with increased efficiency in utilising preferred prey and decreased
E. Líznarová, S. Pekár
semanticscholar   +3 more sources

Availability of Alternative Prey Influences Avian Predation on Salmonids

Estuaries and Coasts, 2022
T. Good, L. Weitkamp, D. Lyons, D. Roby, Kelly S. Andrews, P. J. Bentley   +5 more
semanticscholar   +2 more sources

Prey choice by a freshwater copepod on larval Aedes mosquitoes in the presence of alternative prey

Journal of Vector Ecology, 2021
Predator-prey interactions can have a significant impact on the abundance and distribution of species, but the outcome of these interactions is often context-dependent. In small freshwater habitats, predacious copepods are potential biological control agents for mosquito larvae.
Lauren C, Emerson, Christopher J, Holmes, Carla E, Cáceres   +2 more
openaire   +2 more sources

Extirpation of alternative prey during a small rodent crash

Oecologia, 1992
We document two episodes, in different years, of Barn Owls (Tyto alba) preying on a winter population of Burrowing Owls (Athene cunicularia) on a southern California island. The predation in each case followed a marked shift in the diet of the Barn Owls, due to the cyclic decline of their normal small mammal prey.
Charles A, Drost, Reed C, McCluskey
openaire   +2 more sources

A modified Leslie–Gower predator–prey model with alternative food and selective predation of noninfected prey

Mathematical Methods in the Applied Sciences, 2020
Infectious diseases affect prey populations, and predators choosing susceptible prey may lead to the extinction of the prey population. We propose a mathematical model of prey–predator interaction with the prey population divided into two classes: susceptible and infected.
Altemir Bortuli Junior, Norberto Anibal Maidana   +1 more
openaire   +1 more source

An Investigation Into the Chemical Composition of Alternative Invertebrate Prey

Zoo Biology, 2011
The aim of this study was to determine the chemical composition of eight invertebrate species and evaluate their suitability as alternative prey. The species selected were rusty red cockroaches (Blatta lateralis), six‐spotted cockroaches (Eublaberus distanti), Madagascar hissing cockroaches (Gromphadorhina portentosa), fruit flies (Drosophila ...
Oonincx, D.G.A.B., Dierenfeld, E.S.
openaire   +2 more sources

Re-adaptation from alternative prey to target prey increased predation of predator on target mite

Systematic and Applied Acarology, 2019
Neoseiulus bicaudus (Wainstein) is a natural enemy of spider mite and thrip and also a potential biocontrol agent for Tetranychus turkestani (Tetranychidae). Tyrophagus putrescentiae (Schrank) is an important alternative prey of N.
Jie Su, An-Di Zhu, Guo-Dong Han, Fang Dong, J. Chen, Jian‐Ping Zhang   +5 more
semanticscholar   +1 more source