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首页> 外文期刊>International journal of bifurcation and chaos in applied sciences and engineering >Spatial Pattern of Ratio-Dependent Predator-Prey Model with Prey Harvesting and Cross-Diffusion
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Spatial Pattern of Ratio-Dependent Predator-Prey Model with Prey Harvesting and Cross-Diffusion

机译:与猎物收获和交叉扩散的比例依赖捕食者 - 猎物模型的空间模式

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摘要

This study focuses on the spatial-temporal dynamics of predator-prey model with cross-diffusion where the intake rate of prey is per capita predator according to ratio-dependent functional response and the prey is harvested through nonlinear harvesting strategy. The permanence analysis and local stability analysis of the proposed model without cross-diffusion are analyzed. We derive the conditions for the appearance of diffusion-driven instability and global stability of the considered model. Also the parameter space for Turing region is specified by keeping the cross-diffusion coefficient as one of the crucial parameters. Numerical simulations are given to justify the proposed theoretical results and to show that the cross-diffusion term plays a significant role in the pattern formation.
机译:该研究侧重于捕食者 - 猎物模型的空间动态与交叉扩散,其中猎物的进气量是根据比率依赖的功能反应,通过非线性收集策略收获猎物。 分析了未经交叉扩散的所提出模型的持久性分析和局部稳定性分析。 我们派生了扩散驱动的不稳定性和所考虑模型的全局稳定性的条件。 还通过将交叉扩散系数保持为关键参数之一,指定用于图谱区域的参数空间。 给出了数值模拟,以证明提出的理论结果证明交叉扩散项在图案形成中起着重要作用。

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