Heteroclinic bifurcation for a general predator-prey model with Allee effect and state feedback impulsive control strategy.
In this paper, we analyze a general predator-prey model with state feedback impulsive harvesting strategies in which the prey species displays a strong Allee effect. We firstly show the existence of order-1 heteroclinic cycle and order-1 positive periodic solutions by using the geometric theory of differential equations for the unperturbed system. Based on the theory of rotated vector fields, the order-1 positive periodic solutions and heteroclinic bifurcation are studied for the perturbed system. Finally, some numerical simulations are provided to illustrate our main results. All the results indicate that the harvesting rate should be maintained at a reasonable range to keep the sustainable development of ecological systems.
School of Mathematics and Statistics, Central South University, Changsha, 410083, China. xqz19870705@163.com.
Qizhen
Q
Xiao
Binxiang
B
Dai
D000465:Algorithms; D000818:Animals; D001522:Behavior, Animal; D003198:Computer Simulation; D003247:Conservation of Natural Resources; D004463:Ecology; D017753:Ecosystem; D005246:Feedback; D005399:Fishes; D008954:Models, Biological; D011157:Population Dynamics; D011235:Predatory Behavior