On the analysis of stability, bifurcation, and chaos control of discrete-time predator-prey model with Allee effect on predator

Authors : Seval IŞIK, Figen KANGALGİL

Pages : 404-420

Doi:10.15672/hujms.728889

View : 25 | Download : 4

Publication Date : 2022-04-01

Article Type : Research Paper

Abstract :In this paper, a discrete predator-prey model with Allee effect which is obtained by the forward Euler method has been investigated. The local stability conditions of the model at the fixed point have been discussed. In addition, it is shown that the model undergoes Neimark-Sacker bifurcation by using bifurcation theory. Then, the direction of Neimark-Sacker bifurcation has been given. The OGY method is applied in order to control chaos in considered model due to emergence of Neimark-Sacker bifurcation. Some numerical simulations such as phase portraits and bifurcation figures have been presented to support the theoretical results. Also, the chaotic features are justified numerically by computing Lyapunov exponents. Because of consistency with the biological facts, the parameter values have been taken from literature [Controlling chaos and Neimark-Sacker bifurcation discrete-time predator-prey system, Hacet. J. Math. Stat. 49 insert ignore into journalissuearticles values(5);, 1761-1776, 2020].
Keywords : predator prey model, fixed point, stability, Neimark Sacker bifurcation, Allee effect, OGY control method