Asymptotic Properties of a Stochastic Predator–Prey Model With a General Functional Response Driven by Dual Stochastic Perturbations

ABSTRACT This paper investigates a generalized stochastic predator‐prey model consisting of two differential equations with a general nonlinear functional response denoted as , driven by both standard Brownian motion and Lévy noise. Unlike prior research, the main objective of this manuscript is to investigate the long‐term behavior of the system while placing only mild assumptions on the functional response. Our analysis establishes the existence and uniqueness of a global positive solution. Moreover, we derive sufficient conditions for the extinction and persistence of the two species by employing novel threshold parameters. Notably, these outcomes are derived and substantiated using a Lévy‐type perturbation by not requiring that the Lévy noise be bounded; that is, we do not assume .

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Publication Details

Journal
Mathematical Methods in the Applied Sciences
Published
2025-02-21
DOI
https://doi.org/10.1002/mma.10825
Citations
1
Primary Topic
Mathematical and Theoretical Epidemiology and Ecology Models
Type
article
Field-Weighted Citation Impact
1.88
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article

Asymptotic Properties of a Stochastic Predator–Prey Model With a General Functional Response Driven by Dual Stochastic Perturbations

Fethi Souna
1 citations
Mathematical Methods in the Applied Sciences
Mathematical and Theoretical Epidemiology and Ecology Models
1.88
article

Asymptotic Properties of a Stochastic Predator–Prey Model With a General Functional Response Driven by Dual Stochastic Perturbations

Fethi Souna
article en
1 citations

Abstract

ABSTRACT This paper investigates a generalized stochastic predator‐prey model consisting of two differential equations with a general nonlinear functional response denoted as , driven by both standard Brownian motion and Lévy noise. Unlike prior research, the main objective of this manuscript is to investigate the long‐term behavior of the system while placing only mild assumptions on the functional response. Our analysis establishes the existence and uniqueness of a global positive solution. Moreover, we derive sufficient conditions for the extinction and persistence of the two species by employing novel threshold parameters. Notably, these outcomes are derived and substantiated using a Lévy‐type perturbation by not requiring that the Lévy noise be bounded; that is, we do not assume .

Mathematical Methods in the Applied SciencesVol. 48(9)
Université Djilali de Sidi Bel Abbès (DZ)
Openalex Percentile: Top 18%
Mathematical and Theoretical Epidemiology and Ecology Models
1.88
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