Results 261 to 270 of about 186,014 (303)

To Catch a Predator

SSRN Electronic Journal, 2010
Columbia Journal of Gender and Law, Vol. 21 No. 2 (2011)
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Predation Risk

2018
Predation is one of the strongest evolutionary forces in the animal kingdom. The need to catch food influences the ecology, morphology, and behavior of predators and prey alike. As a consequence, predation risk has not only a stark effect on the single individual but further shapes food webs and whole ecosystems.
Fischer, Stefan, Frommen, Joachim Gerhard   +1 more
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Predation in Space

Spatial Economic Analysis, 2012
Abstract In a spatial economic context, we analyse the incentive to prey of an incumbent facing the potential entrance by a rival. We show that the existence of space modifies the incentive to prey of the incumbent and the resulting equilibrium.
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A PREY–PREDATOR MODEL WITH MICROPARASITE INFECTION IN THE PREDATOR

Journal of Biological Systems, 2008
This paper aims to study the dynamical behaviors of a predator–prey system where the predator is affected by a microparasite infection. The effect of discrete time-delay is investigated. It has been shown that the time-delay can induce instability and oscillations via Hopf bifurcation.
Maiti, A., Bera, S. P., Samanta, G. P.
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Ecology of predator-prey and predator-predator interactions in a multi-predator context

Ecologie des interactions prédateurs-proies et prédateurs prédateurs dans un contexte multiprédateur La coexistence d’espèces de grands carnivores n’est pas rare, l’objectif de cette thèse est de comprendre comment cela affecte les interactions proie-prédateurs.
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THE EFFECT OF PREY AND PREDATOR DENSITIES ON WOLF PREDATION

Ecology, 2002
Predator kills rate (i.e., kills per predator per time) is routinely presupposed to depend exclusively on prey density. However, per capita rates of killing may typically depend on the density of both prey and predator. Unfortunately, our perception of many ecological phenomena may be limited by the inappropriate assumption that kill rates do not ...
John A. Vucetich, Rolf O. Peterson, Carrie L. Schaefer   +2 more
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Impact of predator dormancy on prey-predator dynamics

Chaos: An Interdisciplinary Journal of Nonlinear Science, 2018
The impact of predator dormancy on the population dynamics of phytoplankton-zooplankton in freshwater ecosystems is investigated using a simple model including dormancy, a strategy to avoid extinction. In addition to recently reported chaos-mediated mixed-mode oscillations, as the carrying capacity grows, we find surprisingly wide phases of nonchaos ...
Joana G. Freire, Marcia R. Gallas, Jason A. C. Gallas   +2 more
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Predators

Journal of Nursing Measurement, 2022
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PREDATORS COME AND PREDATORS GO: THE REVERSIBILITY OF PREDATOR-INDUCED TRAITS

Ecology, 2003
While numerous studies have been conducted on the ecology and evolution of phenotypic plasticity, to really understand plasticity we need to expose organisms to different environments over several ontogenetic stages. In this way, we can examine whether organisms change their phenotypic strategy over ontogeny, whether there are developmental windows ...
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Chapter 11 Predators and predation

2001
Publisher Summary Most field predation studies on hard clams, Mercenaria mercenaria , focuses on elucidating information for aquaculture activities and involves manipulative experiments with some form of protection. The control conditions for these studies are used to examine some ecological relationships, but the plots are seeded at relatively high
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