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Stability in a Simple Food Chain System with Michaelis-Menten Functional Response and Nonlocal Delays

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  • Wenzhen Gan
  • Canrong Tian
  • Qunying Zhang
  • Zhigui Lin

Abstract

This paper is concerned with the asymptotical behavior of solutions to the reaction-diffusion system under homogeneous Neumann boundary condition. By taking food ingestion and species' moving into account, the model is further coupled with Michaelis-Menten type functional response and nonlocal delay. Sufficient conditions are derived for the global stability of the positive steady state and the semitrivial steady state of the proposed problem by using the Lyapunov functional. Our results show that intraspecific competition benefits the coexistence of prey and predator. Furthermore, the introduction of Michaelis-Menten type functional response positively affects the coexistence of prey and predator, and the nonlocal delay is harmless for stabilities of all nonnegative steady states of the system. Numerical simulations are carried out to illustrate the main results.

Suggested Citation

  • Wenzhen Gan & Canrong Tian & Qunying Zhang & Zhigui Lin, 2013. "Stability in a Simple Food Chain System with Michaelis-Menten Functional Response and Nonlocal Delays," Abstract and Applied Analysis, Hindawi, vol. 2013, pages 1-14, September.
    • Handle: RePEc:hin:jnlaaa:936952
    DOI: 10.1155/2013/936952
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