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Spatiotemporal Dynamics in a Predator–Prey Model with Functional Response Increasing in Both Predator and Prey Densities

Author

Listed:
  • Ruizhi Yang

    (Department of Mathematics, Northeast Forestry University, Harbin 150040, China)

  • Qiannan Song

    (Department of Mathematics, Northeast Forestry University, Harbin 150040, China)

  • Yong An

    (Department of Mathematics, Northeast Forestry University, Harbin 150040, China)

Abstract

In this paper, a diffusive predator–prey system with a functional response that increases in both predator and prey densities is considered. By analyzing the characteristic roots of the partial differential equation system, the Turing instability and Hopf bifurcation are studied. In order to consider the dynamics of the model where the Turing bifurcation curve and the Hopf bifurcation curve intersect, we chose the diffusion coefficients d 1 and β as bifurcating parameters. In particular, the normal form of Turing–Hopf bifurcation was calculated so that we could obtain the phase diagram. For parameters in each region of the phase diagram, there are different types of solutions, and their dynamic properties are extremely rich. In this study, we have used some numerical simulations in order to confirm these ideas.

Suggested Citation

  • Ruizhi Yang & Qiannan Song & Yong An, 2021. "Spatiotemporal Dynamics in a Predator–Prey Model with Functional Response Increasing in Both Predator and Prey Densities," Mathematics, MDPI, vol. 10(1), pages 1-15, December.
  • Handle: RePEc:gam:jmathe:v:10:y:2021:i:1:p:17-:d:707794
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    Citations

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    Cited by:

    1. Shivam, & Singh, Kuldeep & Kumar, Mukesh & Dubey, Ramu & Singh, Teekam, 2022. "Untangling role of cooperative hunting among predators and herd behavior in prey with a dynamical systems approach," Chaos, Solitons & Fractals, Elsevier, vol. 162(C).
    2. Abbasi, Muhammad Aqib & Samreen, Maria, 2024. "Analyzing multi-parameter bifurcation on a prey–predator model with the Allee effect and fear effect," Chaos, Solitons & Fractals, Elsevier, vol. 180(C).

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