Cross-Diffusion-Driven Instability in a Reaction-Diffusion Harrison Predator-Prey Model

Xiaoqin Wang and Yongli Cai

Abstract and Applied Analysis, 2013, vol. 2013, 1-9

Abstract:

We present a theoretical analysis of processes of pattern formation that involves organisms distribution and their interaction of spatially distributed population with cross-diffusion in a Harrison-type predator-prey model. We analyze the global behaviour of the model by establishing a Lyapunov function. We carry out the analytical study in detail and find out the certain conditions for Turing’s instability induced by cross-diffusion. And the numerical results reveal that, on increasing the value of the half capturing saturation constant, the sequences “spots → spot-stripe mixtures → stripes → hole-stripe mixtures → holes” are observed. The results show that the model dynamics exhibits complex pattern replication controlled by the cross-diffusion.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:306467

DOI: 10.1155/2013/306467

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