Results 161 to 170 of about 218,821 (195)

Internally driven alternation of functional traits in a multispecies predator–prey system

Ecology, 2010
The individual functional traits of different species play a key role for ecosystem function in aquatic and terrestrial systems. We modeled a multispecies predator–prey system with functionally different predator and prey species based on observations of the community dynamics of ciliates and their algal prey in Lake Constance.
Tirok, Katrin, Gaedke, Ursula (Prof. Dr.)   +1 more
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Emergent impacts of alternative resource in cannibalistic predator–prey system

Modeling Earth Systems and Environment, 2020
In this paper, a predator–prey model with cannibalistic effect in predator is presented. Naturally, juveniles predators are captured by their own adult predators in water population system. To reduce such conspecific capturing, alternative resource is supplied to adult predators as a supplementary food. The model is analyzed in terms of theoretical and
Sukumar Samanta, Banshidhar Sahoo, Barun Das   +2 more
openaire   +1 more source

Cyclic voles, prey switching in red fox, and roe deer dynamics – a test of the alternative prey hypothesis

Oikos, 2003
Medium‐sized predators sometimes switch to alternative prey species as their main prey declines. Our objective of this study was to test the alternative prey hypothesis for a medium sized predator (red fox, Vulpes vulpes ), a small cyclically fluctuating main prey (microtine voles) and larger
Kjellander, P., Nordström, J.
openaire   +2 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
Eva, Líznarová, Stano, Pekár
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Alternative prey source coupled with prey recovery enhance stability between migratory prey and their predator in the presence of disease

Nonlinear Analysis: Real World Applications, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Alternative (un)stable states in a stochastic predator–prey model

Ecological Complexity, 2017
Abstract Stochastic models sometimes behave qualitatively differently from their deterministic analogues. We explore the implications of this in ecosystems that shift suddenly from one state to another. This phenomenon is usually studied through deterministic models with multiple stable equilibria under a single set of conditions, with stability ...
Karen C. Abbott, Ben C. Nolting
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Alternative prey disrupt biocontrol by a guild of generalist predators

Biological Control, 2005
We examined the potential of a guild of generalist predators to control Colorado potato beetles (“CPB,” Leptinotarsa decemlineata) on potato. We were interested in determining whether beetle suppression would change with varying predator density, and with varying background densities of green peach aphids (“GPA,” Myzus persicae), which are common ...
A.M. Koss, W.E. Snyder
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Coccinellid Learning During Capture of Alternative Prey

Journal of Insect Behavior, 2003
A. Dejean, M. Gibernau, J. Lauga, J. Orivel   +3 more
openaire   +1 more source

Individual vulnerability to predation: the effect of alternative prey types

Freshwater Biology, 1988
SUMMARY. 1. Many examples of predator‐prey interactions from freshwaters suggest that apparent predator preferences result more from the relative vulnerabilities of prey than any positive choice by the predator.2. The rank order of vulnerability of seven invertebrate prey to nine invertebrate predators was measured in the laboratory.
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Availability of Alternative Prey Influences Avian Predation on Salmonids

Estuaries and Coasts, 2022
Thomas P. Good, Laurie A. Weitkamp, Donald E. Lyons, Daniel D. Roby, Kelly S. Andrews, Paul J. Bentley   +5 more
openaire   +1 more source