Abstract
Understanding the transport mechanism is important key to interpret behavioral and physiological responses of organisms or to predict the success by which they find their resources. In this paper, the effect of transport mechanism in the prey-predator populations is investigated. The models suggested are based on classical Lotka-Volterra (LV) and Rosenzweig-MacArthur (RM) systems in which the passive dispersal (diffusion) and active dispersal (directed movement per se or taxis) are considered. The numerical simulation results obtained from this coupling model confirms two important features: 1) Active dispersal playing the convection role and considered as a simple mechanism to stabilize the prey-predator system; and 2) the coupling effect between active and passive dispersals generates heterogeneous distributions of both species of prey or of predator even in the homogenous environment.
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