研究一个具有时滞和阶段结构的捕食者-食饵模型.通过构造适当的Lyapunov泛函,讨论了该模型的正平衡点和非负边界平衡点的全局吸引性,从而得到了保证该生态系统永久持续生存与绝灭的充分性条件.
A delayed predator-prey model with stage structure for prey is investigated. By constructing suitable Lyapunov functionals, the authors discuss the global attractivity of nonnegative equilibria. A set of easily verifiable sufficient conditions are derived for the permanence and extinction of the proposed ecological system.