| 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 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 to the predator population.
Keywords: Extinction; Hunting cooperation; Milstein`s numerical scheme; Persistence; Stochastic prey-predator model; Time-delay |
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