Complex Dynamics in Three Species Ratio Dependent Food Web Model

摘要：

A three species ratio dependent food web model modified from a simple food chain model by adding omnivory is considered. Poincare section and bifurcation analysis are used to investigate the dynamical behaviors of the model. The model shows complex, as well as, chaotic dynamics. Bifurcation diagrams show period doubling route to chaos and crises. The coexistence of a chaotic and a periodic attractors is observed. It is concluded that omnivory may either stabilize the model by eliminating the chaos or destabilize the model by inducing complex dynamics.

作者: Meng Gao Zizhen Li Honghua Shi

作者单位: School of Mathematics and Statistics Lanzhou University Lanzhou 730000, P.R. China Department of Mathematics Ocean University of China Qingdao 266071, P. R.China; College of Environme

会议类型: 国际会议

会议名称: 第三届国际脉冲动力系统及应用学术会议

会议地点: 青岛

会议语种:英文

在线出版日期: 2006-07-21（万方平台首次上网日期，不代表论文的发表时间）