Stochastic persistence and global attractivity of a two-predator one-prey system with S-type distributed time delays

Abstract

In this paper, well-posedness and asymptotic behaviors of a stochastic two-predator one-prey system with S-type distributed time delays are studied by using stochastic analytical techniques. First, the existence and uniqueness of global positive solution with positive initial condition is proved. Second, sufficient conditions for persistence in mean and extinction of each species are obtained. Then, sufficient conditions for global attractivity are established. Finally, some numerical simulations are provided to support the analytical results.

Keywords

• persistence in mean
• extinction
• predator-prey system
• time delay
• global attractivity