Bifurcations of a delayed predator-prey system with fear, refuge for prey and additional food for predator

Yuanfu Shao; Yuanfu Shao

doi:10.3934/mbe.2023322

Mathematical Biosciences and Engineering

2023, Volume 20, Issue 4: 7429-7452. doi: 10.3934/mbe.2023322

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Bifurcations of a delayed predator-prey system with fear, refuge for prey and additional food for predator

Yuanfu Shao ^,

College of Science, Guilin University of Technology, Guilin, Guangxi 541004, China

Academic Editor: Rana Parshad

Received: 14 December 2022 Revised: 06 February 2023 Accepted: 12 February 2023 Published: 15 February 2023

Taking into account the impacts of the fear by predator, anti-predation response, refuge for prey, additional food supplement for predator and the delayed fear induced by the predator, we establish a delayed predator-prey model in this paper. We analyze the persistence and extinction of species and the existence and uniqueness of a coexistence fixed point. Particularly, we investigate the local asymptotic stability of the equilibrium by use of the characteristic equation theory of a variational matrix. Applying the Hopf bifurcation theorem, we investigate and obtain the bifurcation thresholds of the parameters of fear, refuge coefficient, the quality and quantity of additional food and the anti-predation delayed response produced by prey. Finally we give some examples to verify our theoretical findings and clarify the detailed influences of these parameters on the system dynamics. The main conclusions reveal that these parameters play an important role in the long-term behaviors of species and should be applied correctly to preserve the continuous development of species.
- delayed fear,
- additional food,
- refuge area,
- fixed point,
- Hopf bifurcation
Citation: Yuanfu Shao. Bifurcations of a delayed predator-prey system with fear, refuge for prey and additional food for predator[J]. Mathematical Biosciences and Engineering, 2023, 20(4): 7429-7452. doi: 10.3934/mbe.2023322

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Abstract

Taking into account the impacts of the fear by predator, anti-predation response, refuge for prey, additional food supplement for predator and the delayed fear induced by the predator, we establish a delayed predator-prey model in this paper. We analyze the persistence and extinction of species and the existence and uniqueness of a coexistence fixed point. Particularly, we investigate the local asymptotic stability of the equilibrium by use of the characteristic equation theory of a variational matrix. Applying the Hopf bifurcation theorem, we investigate and obtain the bifurcation thresholds of the parameters of fear, refuge coefficient, the quality and quantity of additional food and the anti-predation delayed response produced by prey. Finally we give some examples to verify our theoretical findings and clarify the detailed influences of these parameters on the system dynamics. The main conclusions reveal that these parameters play an important role in the long-term behaviors of species and should be applied correctly to preserve the continuous development of species.

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