Allee-Effect-Induced Instability in a Reaction-Diffusion Predator-Prey Model

作者：Wang, Weiming^*; Cai, Yongli; Zhu, Yanuo; Guo, Zhengguang

来源：Abstract and Applied Analysis, 2013, 2013: 487810.

DOI：10.1155/2013/487810

We investigate the spatiotemporal dynamics induced by Allee effect in a reaction-diffusion predator-prey model. In the case without Allee effect, there is nonexistence of diffusion-driven instability for the model. And in the case with Allee effect, the positive equilibrium may be unstable under certain conditions. This instability is induced by Allee effect and diffusion together. Furthermore, via numerical simulations, the model dynamics exhibits both Allee effect and diffusion controlled pattern formation growth to holes, stripes-holes mixture, stripes, stripes-spots mixture, and spots replication, which shows that the dynamics of the model with Allee effect is not simple, but rich and complex.

• 出版日期2013
• 单位中山大学; 温州大学