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author:

Liu, Tingting (Liu, Tingting.) [1] | Chen, Lijuan (Chen, Lijuan.) [2] | Chen, Fengde (Chen, Fengde.) [3] (Scholars:陈凤德) | Li, Zhong (Li, Zhong.) [4] (Scholars:李忠)

Indexed by:

EI SCIE

Abstract:

In this paper, we propose a Leslie-Gower predator-prey model with strong Allee effect on prey and fear effect on predator. We discuss the existence and local stability of equilibria by making full use of qualitative analytical theory. It is shown that the above system exhibits at most two positive equilibria and it can undergo a series of bifurcation phenomena. We indicate that the dynamical behavior of the model is closely related to the fear effect on predator. In detail, when the fear effect parameter p = p*, the system will undergo degenerate Hopf bifurcation. There exist two limit cycles (the inner is stable and the outer is unstable). However, when p = p(*), the system will undergo degenerate Bogdanov-Takens bifurcation. Also, by numerical simulation, we conclude that the stronger the fear effect, the bigger the density of prey species. The above shows that fear effect on predator is beneficial to the persistence of the prey species. Our results can be seen as a complement to previous works [Gonzalez-Olivares et al., 2011; Pal & Mandal, 2014].

Keyword:

Allee effect Bogdanov-Takens bifurcation Fear effect Hopf bifurcation

Community:

  • [ 1 ] [Liu, Tingting]Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Chen, Lijuan]Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Chen, Fengde]Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Li, Zhong]Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Fujian, Peoples R China

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Source :

INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS

ISSN: 0218-1274

Year: 2022

Issue: 06

Volume: 32

2 . 2

JCR@2022

1 . 9 0 0

JCR@2023

ESI Discipline: MATHEMATICS;

ESI HC Threshold:24

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 21

SCOPUS Cited Count: 24

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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