Dynamical analysis of a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect

In this paper, we consider a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect. It is shown that the model undergoes Hopf bifurcation as the maturity time delay cross the threshold value, and Turing bifurcation occurs as the diffusion coefficient ratio between prey and predator is small. The study indicates that increasing predator’s mortality can increase the number of prey, but it does not benefit to the coexistence and stability of predator and prey. The increase of fear effect has a positive effect on the population size.

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Publication Details

Journal
International Journal of Biomathematics
Published
2026-01-14
DOI
https://doi.org/10.1142/s179352452650004x
Primary Topic
Mathematical and Theoretical Epidemiology and Ecology Models
Type
article
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article

Dynamical analysis of a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect

Yinze Wu, Xiaoyuan Chang, Jimin Zhang
International Journal of Biomathematics
Mathematical and Theoretical Epidemiology and Ecology Models
article

Dynamical analysis of a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect

Yinze Wu, Xiaoyuan Chang, Jimin Zhang
article en

Abstract

In this paper, we consider a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect. It is shown that the model undergoes Hopf bifurcation as the maturity time delay cross the threshold value, and Turing bifurcation occurs as the diffusion coefficient ratio between prey and predator is small. The study indicates that increasing predator’s mortality can increase the number of prey, but it does not benefit to the coexistence and stability of predator and prey. The increase of fear effect has a positive effect on the population size.

International Journal of Biomathematics
Harbin University of Science and Technology (CN), Heilongjiang University (CN)
Good health and well-being
Openalex Percentile: Top 89%
Mathematical and Theoretical Epidemiology and Ecology Models
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Dynamical analysis of a delayed diffusive predator–prey model incorporating hyperbolic mortality and fear effect — Yinze Wu, Xiaoyuan Chang, et al. · International Journal of Biomathematics (2026) | TGRS Research Map | TGRS