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Volume 8, Number 3, 2018, Pages 982-997                                                                DOI:10.11948/2018.982
Hopf bifurcation analysis for a delayed predator-prey system with a prey refuge and selective harvesting
Miao Peng,Zhengdi Zhang,Xuedi Wang,Xiuyu Liu
Keywords:Predator-prey system, prey refuge, selective harvesting, local stability, Hopf bifurcation.
      In this paper, a delayed predator-prey system with Holling type III functional response incorporating a prey refuge and selective harvesting is considered. By analyzing the corresponding characteristic equations, the conditions for the local stability and existence of Hopf bifurcation for the system are obtained, respectively. By utilizing normal form method and center manifold theorem, the explicit formulas which determine the direction of Hopf bifurcation and the stability of bifurcating period solutions are derived. Finally, numerical simulations supporting the theoretical analysis are given.
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