arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.12237math.DS
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具有Holling型II功能反应的三种群食物链模型的动力学

Dynamics of Three Species Food Chain Model with Holling type II Functional Response

Kaijen Cheng, Hongming You, Ting-Hui Yang

摘要:

在这项工作中,我们重温经典的Holling II型三种群食物链模型与不同的观点。定义了依赖于其他六个参数的两个关键参数$λ_1$和$λ_2$。我们证明了局部稳定性和所有平衡点的存在性可以用$λ_1$和$λ_2$重新表述,并给出了参数的完整分类及其相应的动力学.用比较原理分析了三种全局灭绝结果。此外,还对系统的混沌现象和双稳现象进行了数值模拟,包括平衡环双稳和循环-循环双稳。最后,简要讨论和生物学意义。

英文摘要:

In this work, we revisit the classical Holling type II three species food chain model with a different viewpoint. Two critical parameters $λ_1$ and $λ_2$ dependent on other six parameters are defined. We show that local stabilities and existence of all equilibria can be reformulated by $λ_1$ and $λ_2$, and the complete classifications of parameters and its corresponding dynamics are given. Three global extinction results are showed by comparison principle analytically. Moreover, some interesting numerical simulations, including the chaotic phenomena, and the bi-stability phenomena, including equilibrium-cycle bi-stability and cycle-cycle bi-stability, are presented numerically. Finally, a brief discussion and biological implications are given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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