摘要
对一类两种群均有收获率的具HollingⅢ类功能反应的食饵-捕食系统作定性分析,利用常微分方程定性、稳定性及分支理论,得到此类生物捕食系统平衡点的性态和其极限环的存在、不存在的条件及对其作开发研究的结论。
A qualitative analysis of a kind of food-predator system with two kinds of groups having harvest rate and with functional response of HollingIII is considered, using ordinary differential equations characterization, stability and bifurcation theory, the quality of the equilibrium is discussed, the Conditions of existence and nonexistence of the limit cycle and the conclusions of research and development in this system are obtained.
出处
《咸阳师范学院学报》
2011年第4期5-9,共5页
Journal of Xianyang Normal University
基金
甘肃省教育厅科研基金项目(0608-04)
天水师范学院中青年教师科研基金项目(TSA0932)
关键词
细焦点
极限环
存在性
weak focus
limit cycle
existence
