Asymptotic spreading speeds for a predator–prey system with two predators and one prey

This paper investigates the large time behaviour of a three species reaction–diffusion system, modelling spatial invasion two predators feeding on single prey species. In addition to competition for food, exhibit competitive interactions and, under some parameter condition, they can also be considered as mutants. When mutations occur in predator populations, spread takes place at definite speed, identical both are not coupled through mutation, spreading exhibits more complex propagating pattern, including multiple layers with different speeds. addition, conditions reveal situations where nonlocal pulling phenomenon occurs and particular speed is linearly determined.