Persistence and extinction for stochastic delay differential model of prey predator system with hunting cooperation in predators

Fathalla A. Rihan, Hebatallah J. Alsakaji

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Stochastic differential models provide an additional degree of realism compared to their corresponding deterministic counterparts because of the randomness and stochasticity of real life. In this work, we study the dynamics of a stochastic delay differential model for prey–predator system with hunting cooperation in predators. Existence and uniqueness of global positive solution and stochastically ultimate boundedness are investigated. Some sufficient conditions for persistence and extinction, using Lyapunov functional, are obtained. Illustrative examples and numerical simulations, using Milstein’s scheme, are carried out to validate our analytical findings. It is observed that a small scale of white noise can promote the survival of both species; while large noises can lead to extinction of the predator population.

Original languageEnglish
Article number124
JournalAdvances in Difference Equations
Volume2020
Issue number1
DOIs
Publication statusPublished - Dec 1 2020

Keywords

  • Extinction
  • Hunting cooperation
  • Milstein’s numerical scheme
  • Persistence
  • Stochastic prey–predator model
  • Time-delay

ASJC Scopus subject areas

  • Analysis
  • Algebra and Number Theory
  • Applied Mathematics

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