Spatiotemporal Model of a Predator-Prey System with Herd Behavior and Quadratic Mortality

In this paper, we have investigated a diffusive predator-prey model with herd behavior. Also, we considered that the mortality of predators is linear as well as quadratic. Using linear stability analysis, we obtain the condition for diffusive instability and identify the corresponding domain in the space of control parameters. Using extensive numerical simulations, we obtain non-Turing spatiotemporal patterns in the model with linear mortality of predators, and Turing pattern formation, namely, spotted pattern and mixed pattern (spots-stripes) in model with quadratic mortality of predators. The results focus on the effect of the changing mortality rates of predator in pattern dynamics of a diffusive predator-prey model and help us in the better understanding of the dynamics of the predator-prey interaction in real environment.