摘要
讨论了捕食种群带有常数投放率的一类捕食-被捕食系统,分析了平衡点的分布与局部性态,得到了解的有界性与全局渐近稳定性的条件,以及极限环的存在性条件,最后用李雅普略夫方法讨论了Hopf分支现象,同时,对结论给于生态解释。
In this paper,a kind of predator-prey system with constant stocking rate of predator isdiscussed.The paper mainly investigates the behaviour of equilibrium points, solution'sboundedness,global asymptotic stability and the existence of limit cycles.Finally Ljapunovapproach is used to discuss the phendmenon of Hopf bifurcation, The ecological meanings ofall conclusions are interpreted.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1995年第8期117-122,共6页
Journal of Xi'an Jiaotong University
基金
陕西省自然科学基金
关键词
捕食者
定性分析
极限环
投放率
种群
prey predator qualitative analysis limit cycle stability