Results 251 to 260 of about 164,200 (300)
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Intraguild predation reduces redundancy of predator species in multiple predator assemblage
Journal of Animal Ecology, 2006Summary Interference between predator species frequently decreases predation rates, lowering the risk of predation for shared prey. However, such interference can also occur between conspecific predators. Therefore, to understand the importance of predator biodiversity and the degree that predator species can be considered functionally interchangeable,
Blaine D, Griffen, James E, Byers
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Predator interference and stability of predator–prey dynamics
Journal of Mathematical Biology, 2014Predator interference, that is, a decline in the per predator consumption rate as predator density increases, is generally thought to promote predator-prey stability. Indeed, this has been demonstrated in many theoretical studies on predator-prey dynamics.
Přibylová, Lenka, Berec, Luděk
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1984
The first task faced by the writer of any book is the setting of limits around the material to be covered. This is primarily an exercise in definition and, as with any such exercise, is an invitation to dispute. Nearly every textbook dealing with ecology offers a unique definition of predation.
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The first task faced by the writer of any book is the setting of limits around the material to be covered. This is primarily an exercise in definition and, as with any such exercise, is an invitation to dispute. Nearly every textbook dealing with ecology offers a unique definition of predation.
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Predation and Predator Management *
2019Predation has shaped many facets of the ecology of plovers, including their life history traits, behaviors, and demography. Moreover, conservation often emphasizes managing predators to increase population size. I reviewed literature addressing impacts of predation on survivorship and reproductive success of plovers, as well as four management ...
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The Journal of Industrial Economics, 1988
ONE common assumption in the post-McGee [1958] predatory pricing literature has been that the predatory firm must be larger (have 'deeper pockets'), than the victim of the predation, usually an entrant. This assumption stems from a model of predation in which the contesting firms sell at levels below cost until one of the firms exits after exhausting ...
Hilke, John C, Nelson, Philip B
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ONE common assumption in the post-McGee [1958] predatory pricing literature has been that the predatory firm must be larger (have 'deeper pockets'), than the victim of the predation, usually an entrant. This assumption stems from a model of predation in which the contesting firms sell at levels below cost until one of the firms exits after exhausting ...
Hilke, John C, Nelson, Philip B
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Predating predators: An experimental study [PDF]
, 2001 Predating predators requires at least three specimen to which we refer as players 1, 2, and 3. Player 1 has simply to guess nature when trying to find food. Player 2 is hunting player 1 in the hope that 1 is well-fed but must also avoid being hunted by player 3.
Avrahami, Judith +2 more
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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 +1 more
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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 +1 more
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SIAM Journal on Applied Mathematics, 1978
This paper concerns the growth of two predator species competing exploitatively for the same prey population. The prey are assumed to regenerate in the absence of predation by logistic growth. The predators are assumed to feed on the prey with a saturating functional reponse to prey density. Specifically, we assume that Michaelis–Menten kinetics or the
Hsu, S. B. +2 more
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This paper concerns the growth of two predator species competing exploitatively for the same prey population. The prey are assumed to regenerate in the absence of predation by logistic growth. The predators are assumed to feed on the prey with a saturating functional reponse to prey density. Specifically, we assume that Michaelis–Menten kinetics or the
Hsu, S. B. +2 more
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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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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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Intraguild Predation Communities with Anti-predator Behavior
SIAM Journal on Applied Dynamical SystemsAbstract. Spatial heterogeneity plays a pivotal role in shaping the dynamics of ecosystems, with ecologists recognizing its importance in promoting the stability of population dynamics. In this study, we introduce a cross-diffusion model to describe the dynamics of an intraguild predation community. The model considers intraguild prey
Faezeh Farivar +4 more
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