摘要
对一个特殊的三种群非自治捕食链扩散系统进行讨论.其特殊之处在于扩散现象发生在构成捕食链的中间种群间.通过利用比较原理进行微分不等式的比较,得到了该系统持续生存的条件;分析了扩散运动对该系统种群动力学行为的影响.
In this work, a special three-species predator-prey-chain nonautonomous diffusive system is considered, where diffusion occurs in the middle species consisting of predator-preychain. By comparing differential inequalities with comparison theorem, the conditions which guarantee the system to be persist are obtained ; further, based on these conditions, effects of diffusion on the population dynamical behavior are analyzed.
出处
《数学的实践与认识》
CSCD
北大核心
2005年第8期146-150,共5页
Mathematics in Practice and Theory
