具有Crowley-Martin型功能反应的捕食者-食饵模型的复杂动力学和随机敏感性分析

王腾飞,冯涛,孟新柱

Complex Dynamics and Stochastic Sensitivity Analysis of a Predator-Prey Model with Crowley-Martin Type Functional Response

Tengfei Wang,Tao Feng,Xinzhu Meng

图 4 平衡点和置信椭圆. (a) 1000个随机变量在时间$ T = 1000 $, 步长$ \Delta t = 0.01 $时的随机状态(黑色星号), 内部平衡点$ E_{11} $(绿点)和置信椭圆($ P = 99\% $为蓝线, $ P = 95\% $为红线, $ \sigma = 0.1 $). (b) 内部平衡点$ E_{11} $(绿点)和不同随机噪声强度的置信椭圆($ \sigma = 0.12 $为红线, $ \sigma = 0.1 $为蓝线, $ \sigma = 0.14 $为黑线). 其他参数为: $ a = 0.6, b = 0.1, c = 0.3, f = 0.35, \alpha = 0.4, \beta = 1 $.