Weak Allee effects and species coexistence

作者：Kang Yun^*; Yakubu Abdul Aziz

来源：Nonlinear Analysis: Real World Applications , 2011, 12(6): 3329-3345.

DOI：10.1016/j.nonrwa.2011.05.031

• Ricker's model
• Allee effects
• Competition
• Coexistence
• Extinction
• Permanence

In this article, we study the population dynamics of a two-species discrete-time competition model where each species suffers from either predator saturation induced Allee effects and/or mate limitation induced Allee effects. We focus on the following two possible outcomes of the competition: 1. one species goes to extinction; 2. the system is permanent. Our results indicate that, even if one species' intra-specific competition is less than its interspecific competition, weak Allee effects induced by predation saturation can promote coexistence of the two competing species. This is supported by the outcome of two-species competition models without Allee effects. Also, we discuss our results and future work on multiple attractors in competition models with Allee effects. Published by Elsevier Ltd

• 出版日期2011-12