【摘要】 研究具有Holling Ⅱ功能反应的捕食者食饵模型. 得到了食饵两性具有不同的出生率和死亡率时, 边界平衡点全局稳定的条件及食饵和捕食者一致持续生存的条件. 数值模拟表明, 捕食者的存在最终不会改变食饵的性别比例.更多还原

【Abstract】 The asymptotic behavior of a predator-prey system is studied with assumptions that birth and death rates for male and female prey are different and that the functional response is of Holling II type. Conditions for global stability of boundary equilibrium and conditions for the permanence of prey and predator are obtained. Computer simulation shows that the existence of predator will not change the sexual ratio of prey in the end.更多还原