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A predator-prey reaction-diffusion system with nonlocal effects
Authors:S. A. Gourley  N. F. Britton
Affiliation:(1) Department of Mathematical and Computing Sciences, University of Surrey, GU2 5XH Guildford, Surrey, UK;(2) School of Mathematical Sciences, University of Bath, BA2 7AY Claverton Down, Bath, UK
Abstract:We consider a predator-prey system in the form of a coupled system of reaction-diffusion equations with an integral term representing a weighted average of the values of the prey density function, both in past time and space. In a limiting case the system reduces to the Lotka Volterra diffusion system with logistic growth of the prey. We investigate the linear stability of the coexistence steady state and bifurcations occurring from it, and expressions for some of the bifurcating solutions are constructed. None of these bifurcations can occur in the degenerate case when the nonlocal term is in fact local.
Keywords:Predator-prey  Reaction-diffusion  Time delay  Bifurcation  Pattern formation
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