Dynamics Analysis of the Disturbance of the External Noise to the Logistic Model
Zhibing Li · Acta Scientiarum Naturalium Universitatis Sunyatseni · 2007
It has been studied that the change of the population of small animals satisfies the Logistic equation.Besides the natural death and birth,the population is controlled by preyer and other external disturbance.Small harmful rats in grassland(small rats for short) are used as a example to study the effect of suppression factor μ and the noise correlation strength λ on the static probability density pst(x).It is found that the increase of suppression factor μ or noise correlation strength λ all have the effects of suppression to the growth of small rats.