QUALITATIVE ANALYSIS OF A MODIFIED LESLIE-GOWER PREDATOR-PREY MODEL WITH CROWLEY-MARTIN FUNCTIONAL RESPONSES

摘要

In this paper, we study a modified Leslie-Gower predator-prey model with Crowley-Martin functional response. We show the existence of a bounded positive invariant attracting set and establish the permanence conditions. The parameter regions for the stability and instability of the unique constant steady state solution are derived, and the existence of time-periodic orbits and non-constant steady state solutions are proved by bifurcation method.