Spatiotemporal patterns in a diffusive resource–consumer model with distributed memory and maturation delay

Hao Shen and Yongli Song

Mathematics and Computers in Simulation (MATCOM), 2024, vol. 221, issue C, 622-644

Abstract: In this paper, we propose a diffusive consumer–resource model in which the consumer is involved with spatiotemporal memory and the resource has maturation delay. Firstly, for the case without maturation delay, the influence of the spatiotemporal distributed memory on the stability of the positive steady state is investigated. It has been shown that memory delay can induce Turing bifurcation for the negative memory-based diffusion coefficient and induce Hopf bifurcation for the positive memory-based diffusion coefficient. Then the joint effect of the memory delay and the maturation delay on the stability of the positive steady state is investigated and it has been shown that the joint effect of the memory delay and the maturation delay can induce more complicated spatiotemporal dynamics via Turing–Hopf bifurcation and double Hopf bifurcation. Finally, we apply our theoretical analysis results to a consumer–resource model with Holling-II type functional response to illustrate the existence of the different spatiotemporal patterns.

Keywords: Resource-consumer model; Spatiotemporal distributed memory; Maturation delay; Hopf bifurcation; Turing–Hopf bifurcation (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:221:y:2024:i:c:p:622-644

DOI: 10.1016/j.matcom.2024.03.026

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