【摘要】 基于广泛的生态背景，综合生态学中著名的Holling II型功能反应模型，以及近几年来才出现的具有比率相关的功能反应模型，通过适当的变换，运用Hopf分支理论，得到判别系统出现Hopf分支的充分条件，具有一定的生态指导意义.更多还原

【Abstract】 In this paper, We purpose a model, which is of comprehensive ecology background, It contains the well-known Holling II functional response model, and the ratio-dependant functional response model, which was proposed recently. We deduced the sufficient condition which can be used to determine Hopf bifurcation in system．The conclusion is of some guidance ecological interest.更多还原