Department of Mathematics, Harbin Institute of Technology, Weihai 264209, PR China.
J Theor Biol. 2010 Dec 7;267(3):283-91. doi: 10.1016/j.jtbi.2010.08.030. Epub 2010 Sep 8.
This is a continuation of our paper [Liu, M., Wang, K., 2010. Persistence and extinction of a stochastic single-species model under regime switching in a polluted environment, J. Theor. Biol. 264, 934-944]. Taking both white noise and colored noise into account, a stochastic single-species model under regime switching in a polluted environment is studied. Sufficient conditions for extinction, stochastic nonpersistence in the mean, stochastic weak persistence and stochastic permanence are established. The threshold between stochastic weak persistence and extinction is obtained. The results show that a different type of noise has a different effect on the survival results.
这是我们论文[Liu, M., Wang, K., 2010. Persistence and extinction of a stochastic single-species model under regime switching in a polluted environment, J. Theor. Biol. 264, 934-944]的续篇。考虑到白噪声和有色噪声,研究了污染环境下的随机单物种模型的状态切换。建立了灭绝、随机平均不持续、随机弱持续和随机持续的充分条件。得到了随机弱持续和灭绝之间的阈值。结果表明,不同类型的噪声对生存结果有不同的影响。