Results 61 to 70 of about 340,792 (220)

Permanence of Periodic Predator-Prey System with General Nonlinear Functional Response and Stage Structure for Both Predator and Prey

Abstract and Applied Analysis, 2009
We study the permanence of periodic predator-prey system with general nonlinear functional responses and stage structure for both predator and prey and obtain that the predator and the prey species are permanent.
Xuming Huang, Xiangzeng Kong, Wensheng Yang   +2 more
doaj   +1 more source

Coexistence for an Almost Periodic Predator-Prey Model with Intermittent Predation Driven by Discontinuous Prey Dispersal

Discrete Dynamics in Nature and Society, 2017
An almost periodic predator-prey model with intermittent predation and prey discontinuous dispersal is studied in this paper, which differs from the classical continuous and impulsive dispersal predator-prey models. The intermittent predation behavior of
Yantao Luo, Long Zhang, Zhidong Teng, Tingting Zheng   +3 more
doaj   +1 more source

Feedback control and its impact on generalist predator–prey system with prey harvesting

Nonlinear Analysis, 2019
This article examines the effectiveness of feedback control as a management policy on a generalist predator–prey system with prey harvesting. We discuss the result of implementing feedback control with respect to prey and predator separately.
Debabrata Das, Tapan Kumar Kar
doaj   +1 more source

Influence of intra‐ and interspecific variation in predator–prey body size ratios on trophic interaction strengths

Ecology and Evolution, 2020
Predation is a pervasive force that structures food webs and directly influences ecosystem functioning. The relative body sizes of predators and prey may be an important determinant of interaction strengths.
Ross N. Cuthbert, Ryan J. Wasserman, Tatenda Dalu, Horst Kaiser, Olaf L. F. Weyl, Jaimie T. A. Dick, Arnaud Sentis, Michael W. McCoy, Mhairi E. Alexander   +8 more
doaj   +1 more source

Quiescence stabilizes predator–prey relations [PDF]

Journal of Biological Dynamics, 2009
The classical MacArthur Rosenzweig predator-prey system has a stable coexistence point or, if either the prey capacity is large or the predator mortality is low, a stable limit cycle. The question here is how the stability properties of the coexistence point change when the prey or the predator or both can go quiescent.
L, Bilinsky, K P, Hadeler
openaire   +2 more sources

Competing associations in six-species predator-prey models

, 2005
We study a set of six-species ecological models where each species has two predators and two preys. On a square lattice the time evolution is governed by iterated invasions between the neighboring predator-prey pairs chosen at random and by a site ...
Bray A J, Crutchfield J P Görnerup O, Frachebourg L, Gintis H, Grassberger P, György Szabó, Hofbauer J, Liggett T M, Marro J, Maynard Smith J, Miekisz J, Sato K, Tainaka K, Watt A S, Weibull J W   +14 more
core   +1 more source

A two-patch prey-predator model with predator dispersal driven by the predation strength

Mathematical Biosciences and Engineering, 2017
Foraging movements of predator play an important role in population dynamics of prey-predator systems, which have been considered as mechanisms that contribute to spatial self-organization of prey and predator.
Yun Kang, Sourav Kumar Sasmal, Komi Messan   +2 more
doaj   +1 more source

Twisted and Nontwisted Bifurcations Induced by Diffusion

, 1996
We discuss a diffusively perturbed predator-prey system. Freedman and Wolkowicz showed that the corresponding ODE can have a periodic solution that bifurcates from a homoclinic loop.
A. Lunardi, A. M. Turing, B. Deng, E. Conway, E. D. Conway, E. Yanagida, G. Prato Da, G. S. K. Wolkowicz, H. I. Freedman, H. Kokubu, J. Carr, J. D. Murray, J. K. Hale, L. P. Silnikov, P. C. Fife, P. Hartman, S.-N. Chow, S.-N. Chow, S.-N. Chow, S.-N. Chow, X. B. Lin, X. B. Lin, X. B. Lin, X.-B. Lin, X.-B. Lin, Xiao-Biao Lin   +25 more
core   +2 more sources

Feeling the heat: the effect of acute temperature changes on predator–prey interactions in coral reef fish

Conservation Physiology, 2015
Exposure to elevated temperatures significantly affects the predator-prey interactions of a common pair of reef fish. Predators exposed to elevated temperatures had increased maximum attack speeds.
B. Allan, P. Domenici, P. Munday, M. McCormick   +3 more
semanticscholar   +1 more source

Mercury bioaccumulation and isotopic relation between Trichiurus lepturus (Teleostei) and its preferred prey in coastal waters of southeastern Brazil

Anais da Academia Brasileira de Ciências, 2016
The trophic transfer of total mercury (THg) and its bioaccumulation from prey species to the predator fish Trichiurus lepturus was analysed in coastal waters of southeastern Brazil to evaluate the trace element dynamic in this predator-prey system.
VANESSA T. BITTAR, CARLOS E. REZENDE, HELENA A. KEHRIG, ANA PAULA M. DI BENEDITTO   +3 more
doaj   +1 more source