Chaos control in a discrete-time predator-prey model with weak Allee effect

被引:22
作者
Pal, Saheb [1 ]
Sasmal, Sourav Kumar [2 ]
Pal, Nikhil [1 ]
机构
[1] Visva Bharati, Dept Math, Santini Ketan 731235, W Bengal, India
[2] Aoyama Gakuin Univ, Dept Phys & Math, Sagamihara, Kanagawa 2525258, Japan
关键词
Chaos control; Allee effect; flip bifurcation; bi-stability; Lyapunov exponent; BIFURCATION-ANALYSIS; COMPLEX DYNAMICS; SYSTEM; SUBJECT;
D O I
10.1142/S1793524518500894
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The stability of the predator prey model subject to the Allee effect is an interesting topic in recent times. In this paper, we investigate the impact of weak Allee effect on the stability of a discrete-time predator-prey model with Bolling type-IV functional response. The mathematical features of the proposed model are analyzed with the help of equilibrium analysis, stability analysis, and bifurcation theory. We provide sufficient conditions for the flip bifurcation by considering Allee parameter as the bifurcation parameter. We observe that the model becomes stable from chaotic dynamics as the Allee parameter increases. Further, we observe bi-stability behavior of the model between only prey existence equilibrium and the coexistence equilibrium. Our analytical findings are illustrated through numerical simulations.
引用
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页数:26
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