Stability and bifurcation analysis of a two-patch model with the Allee effect and dispersal

被引:0
作者
Xia, Yue [1 ]
Chen, Lijuan [1 ]
Srivastava, Vaibhava [2 ]
Parshad, Rana D. [2 ]
机构
[1] Fuzhou Univ, Sch Math & Stat, Fuzhou 350108, Fujian, Peoples R China
[2] Iowa State Univ, Dept Math, Ames, IA 50011 USA
基金
中国国家自然科学基金;
关键词
nonlinear dispersal; Allee effect; stability; saddle-node bifurcation; patch model; reaction-diffusion system; PREDATOR-PREY MODEL; HABITAT FRAGMENTATION; NONLINEAR DIFFUSION; EXTINCTION;
D O I
10.3934/mbe.2023876
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
In the current manuscript, a two-patch model with the Allee effect and nonlinear dispersal is presented. We study both the ordinary differential equation (ODE) case and the partial differential equation (PDE) case here. In the ODE model, the stability of the equilibrium points and the existence of saddle-node bifurcation are discussed. The phase diagram and bifurcation curve of our model are also given as a results of numerical simulation. Besides, the corresponding linear dispersal case is also presented. We show that, when the Allee effect is large, high intensity of linear dispersal is not favorable to the persistence of the species. We further show when the Allee effect is large, nonlinear diffusion is more beneficial to the survival of the population than linear diffusion. Moreover, the results of the PDE model extend our findings from discrete patches to continuous patches.
引用
收藏
页码:19781 / 19807
页数:27
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