Results 11 to 20 of about 3,802,065 (302)

Indirect effects of primary prey population dynamics on alternative prey [PDF]

open access: yesTheoretical Population Biology, 2015
We develop a theory of generalist predation showing how alternative prey species are affected by changes in both mean abundance and variability (coefficient of variation) of their predator’s primary prey.
Stephen Redpath   +7 more
core   +6 more sources

FUNCTIONAL RESPONSES: A QUESTION OF ALTERNATIVE PREY AND PREDATOR DENSITY [PDF]

open access: yesEcology, 2007
Throughout the study of ecology, there has been a growing realization that indirect effects among species cause complexity in food webs. Understanding and predicting the behavior of ecosystems consequently depends on our ability to identify indirect ...
Louis-Félix Bersier, Sven Bacher
exaly   +7 more sources

Global stability of predator-prey system with alternative prey. [PDF]

open access: yesISRN Biotechnol, 2013
A predator-prey model in presence of alternative prey is proposed. Existence and local stability conditions for interior equilibrium points are derived. Global stability conditions for interior equilibrium points are also found.
Sahoo B.
europepmc   +5 more sources

Alternative prey impedes the efficacy of a natural enemy of mosquitoes [PDF]

open access: yesBiological Control, 2020
Adaptive foraging behaviour in the presence of multiple prey types may mediate stability to predator-prey relationships. For biological control agents, the presence of alternative prey may thus reduce ecological impacts towards target organisms ...
Dick, Jaimie T.A.   +16 more
core   +7 more sources

Parasites as prey: the effect of cercarial density and alternative prey on consumption of cercariae by four non-host species [PDF]

open access: yesParasitology, 2017
In parasites with complex life cycles the transmission of free-living infective stages can be influenced by ambient community diversity, in particular via predation.
Thieltges, D.W.   +7 more
core   +5 more sources

Mathematical and Dynamic Analysis of a Prey-Predator Model in the Presence of Alternative Prey with Impulsive State Feedback Control [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2012
The dynamic complexities of a prey-predator system in the presence of alternative prey with impulsive state feedback control are studied analytically and numerically.
Min Zhao, Chuanjun Dai
core   +5 more sources

Alternative prey mediate intraguild predation in the open field.

open access: yesPest Management Science, 2022
BACKGROUND Generalist predators that kill and eat other natural enemies can weaken biological control. However, pest suppression can be disrupted even if actual intraguild predation is infrequent, if predators reduce their foraging to lower their risk of
Gretchen B. Snyder   +10 more
semanticscholar   +3 more sources

A focus on long-run sustainability of a harvested prey predator system in the presence of alternative prey

open access: yesComptes Rendus - Biologies, 2010
Within the framework of a general equilibrium model we study the long-run dynamics of a prey-predator model in the presence of an alternative prey. Our results show that sustainability, i.e. a positive value of the population in the long run, essentially depends on individual harvesting efforts and digesting factors relative to alternative prey.
T K Kar
exaly   +4 more sources

Habitat selection when killing primary versus alternative prey species supports prey specialization in an apex predator

open access: yesJournal of Zoology, 2019
© 2019 The Zoological Society of London Many predators specialize on one or several prey species that they select from the range of potential prey. Predator specialization on primary versus alternative prey is driven in part by encounter rates with prey ...
ML Allen (8963465)   +14 more
core   +2 more sources

Alternative Prey and Artificial Diet of the Multicolored Asian Lady Beetle Harmonia axyridis: A Review [PDF]

open access: yesInsects
As an important natural enemy insect, Harmonia axyridis has significant biological control effects on a variety of pests such as aphids in agroforestry ecosystems. The large-scale application of H. axyridis has long been limited by the unstable supply of
Qingqiu Zeng   +4 more
doaj   +2 more sources

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