Analysis of a stage structured predator–prey Gompertz model with disturbing pulse and delay

Abstract In this paper, we introduce a general and robust prey-dependent consumption predator–prey Gompertz model with periodic harvesting for the prey and stage structure for the predator with constant maturation time delay and perform a systematic mathematical and ecological study. Sufficient conditions which guarantee the global attractivity of predator-extinction periodic solution and permanence of the system are obtained. We also prove that constant maturation time delay and impulsive catching or poisoning for the prey can bring great effects on the dynamics of system by numerical analysis. Our results provide reliable tactic basis for the practical pest management.

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