2014
DOI: 10.1142/s0218127414501090
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Stochastic Bifurcations and Noise-Induced Chaos in a Dynamic Prey–Predator Plankton System

Abstract: We consider the stochastic Truscott-Brindley dynamical model of the interacting populations of prey and predator. We study a new phenomenon of the stochastic cycle splitting. In a zone of Canard cycles, using the stochastic sensitivity function technique, we find a critical value of the parameter corresponding to the supersensitive cycle. In the neighborhood of this critical value, a comparative parametrical analysis of the phenomenon of the stochastic cycle splitting is performed. It is shown that the bifurca… Show more

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Cited by 19 publications
(4 citation statements)
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References 17 publications
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“…The effect of Gaussian white noise in a predator‐prey model with one fast and two slow variables is studied, which is the first three‐dimensional realistic SODE model with multiplicative noise . A new phenomenon of the stochastic cycle splitting is studied in stochastic Truscott‐Brindley dynamical model, which shows that the bifurcation of the stochastic cycle splitting is accompanied by the noise‐induced chaotization. When the noise is sufficiently small, the stochastic model will preserve this nice property that the positive equilibrium of the deterministic system is globally stable .…”
Section: Introductionmentioning
confidence: 99%
“…The effect of Gaussian white noise in a predator‐prey model with one fast and two slow variables is studied, which is the first three‐dimensional realistic SODE model with multiplicative noise . A new phenomenon of the stochastic cycle splitting is studied in stochastic Truscott‐Brindley dynamical model, which shows that the bifurcation of the stochastic cycle splitting is accompanied by the noise‐induced chaotization. When the noise is sufficiently small, the stochastic model will preserve this nice property that the positive equilibrium of the deterministic system is globally stable .…”
Section: Introductionmentioning
confidence: 99%
“…В таких системах даже небольшие стохастические вариации биологических параметров могут привести к существенным качественным изменениям в динамике и вызвать резкие экологические сдвиги, в том числе и вымирание популяций [Barbera, Spagnolo, 2002;Lande, Engen, Saether, 2003;Rietkert et al, 2004;Mandal, Banerjee, 2013]. Исследование стохастических эффектов в системах взаимодействующих популяций является активно развиваемым направлением современной математической популяционной динамики (см., например, [Sieber, Malchow, Schimansky-Geier, 2007;Bashkirtseva, Ryashko, 2014;Sun et al, 2009;Ryashko, Bashkirtseva, 2015;Hening, 2021;Bashkirtseva, Perevalova, Ryashko, 2021;Sudakov, Vakulenko, Bruun, 2022;Crespo-Miguel, Jarillo, Cao-Garcia, 2022]).…”
Section: Introductionunclassified
“…The deterministic theory of the population dynamics is well developed and based on the mathematical theory of bifurcations. At present, the challenging problem is the study of the nonlinear phenomena in stochastic population models [3,4,5,6]. Here, a phenomenon of the noise-induced extinction is one of the most attractive [7,8].…”
Section: Introductionmentioning
confidence: 99%