Stochastic Sensitivity Analysis and Control for Ecological Model with the Allee Effect

被引:13
|
作者
Ryashko, L. [1 ]
Bashkirtseva, I. [1 ]
机构
[1] Ural Fed Univ, Inst Math & Comp Sci, Ekaterinburg 620083, Russia
关键词
stochastic sensitivity; ecological models; population dynamics; stabilization; CATASTROPHIC SHIFTS; SYSTEM; DYNAMICS; NOISE;
D O I
10.1051/mmnp/201510209
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this paper, we discuss a problem of the analysis and prevention of catastrophic shifts in ecosystems with stochastic environment. For the solution of this problem in models of ecological dynamics, a new approach based on the stochastic sensitivity functions technique is suggested and applied to a stochastically forced predator-prey model with the Allee effect. For this population model, we analyze a phenomenon of noise-induced extinction using the method of confidence domains. By controlling those domains we provide a stable coexistence of both species and prevent the noise-induced extinction.
引用
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页码:130 / 141
页数:12
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