Hopf bifurcation of a ratio-dependent predator–prey system with time delay

In this paper, we consider a ratio dependent predator–prey system with time delay where the dynamics is logistic with the carrying capacity proportional to prey population. By considering the time delay as bifurcation parameter, we analyze the stability and the Hopf bifurcation of the system based on the normal form approach and the center manifold theory. Finally, we illustrate our theoretical results by numerical simulations.