Permanence and extinction for a single-species system with jump-diffusion
Permanence and extinction for a single-species system with jump-diffusion
复制标题
具有跳跃扩散的单物种系统的持久性和灭绝
DOI:
10.1016/j.jmaa.2015.04.050
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发表时间:
2015-10
影响因子:
1.3
通讯作者:
Guohua Song
中科院分区:
文献类型:
--
作者:
Dan Li;Jing'an Cui;Guohua Song
In this study, we consider the effect of jump-diffusion random environmental perturbations on the permanence and extinction of a single-species dispersal periodic system in poor patchy environments with the possibility of species loss during their dispersion among patches. First, we prove that there is a unique global positive solution to the system with any initial positive value with probability 1, and we obtain the sufficient conditions that stochastically ensure the ultimate boundedness as well as the asymptotic polynomial growth of the population system. Next, we establish the sufficient conditions for the almost sure permanence in the mean, stochastic permanence, and extinction of the system. In particular, by constructing an appropriate integrating factor, we obtain the sufficient conditions for the almost sure weak permanence of the patch. The conditions obtained for permanence generalize the sufficient conditions established previously on the system without random environmental perturbations. Finally, we discuss the biological implications of the main results.
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影响因子:
--
作者:
Xu, Chaoqun;Yuan, Sanling;Zhang, Tonghua
通讯作者:
Zhang, Tonghua
DOI:
10.1142/p473
发表时间:
2006-08
期刊:
J. Frankl. Inst.
影响因子:
--
作者:
X. Mao;C. Yuan
通讯作者:
X. Mao;C. Yuan
影响因子:
3.5
作者:
T. Gard
通讯作者:
T. Gard
影响因子:
2.4
作者:
F. Hanson
通讯作者:
F. Hanson
DOI:
10.1016/j.jmaa.2012.02.043
发表时间:
2012-07-15
影响因子:
1.3
作者:
Bao, Jianhai;Yuan, Chenggui
通讯作者:
Yuan, Chenggui