Dynamics of a general non-autonomous stochastic Lotka-Volterra model with delays
Dynamics of a general non-autonomous stochastic Lotka-Volterra model with delays
复制标题
具有时滞的一般非自治随机 Lotka-Volterra 模型的动力学
DOI:
10.11948/2016051
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发表时间:
2016
影响因子:
1.1
通讯作者:
Zhang Shuo
中科院分区:
文献类型:
--
作者:
Wang Qing;Yu Yongguang;Zhang Shuo
Abstract In this paper, a general non-autonomous n-species Lotka-Volterra model with delays and stochastic perturbation is investigated. For this model, sufficient conditions for extinction, non-persistence in the mean, weak persistence and stochastic permanence are established. The influences of the stochastic noises to the properties of the stochastic model are discussed. The property permanence for the model is preserved with the sufficiently small noise and sufficiently large noise may cause extinction of the model. The critical value between weak persistence and extinction is obtained. Finally, numerical simulations are given to support the theoretical analysis results.
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