污染环境中种群的进化研究

Evolutionary Dynamics of Environmental Pollution Model with Impulse Period Disturbance

本文研究脉冲排放污染时对周围单种群生物表型特征进化的影响,首先建立具有表型特征的生物进化模型其次采用临界函数分析方法,得到产生进化稳定、收敛稳定及进化分支的条件.最后,通过数值模拟给出连续稳定时进化奇异点与脉冲周期、输入毒素的量的关系.

The effects of pulse pollution on the evolution of phenotypic trait in a single population were studied.Firstly,biological evolution model with phenotypic characteristics is established.Secondly,the conditions of evolutionary stable,convergence stability and evolutionary branch are given by critical function analysis method.Finally,the relationship among evolutionary singularity,pulse period and the amount of toxin input in continuous stability is given by numerical simulation.