一个离散修改的莱斯利-高尔捕食者-猎物模型的多个分支
Yajie Sun1, Ming Zhao1, Yunfei Du2
1School of Science, China University of Geosciences (Beijing), Beijing 100083, China.
Mathematical biosciences and engineering : MBE
|December 21, 2023
概括
这项研究分析了一个离散的捕食者-猎物模型,揭示了复杂的动态和分叉. 这项研究探讨了离散系统中的折叠,折叠翻转和共振分叉,与连续模型不同.
科学领域:
- 生态生态学 生态生态学
- 数学生物学 数学生物学
- 动态系统 动态系统
背景情况:
- 捕食者-猎物模型对于理解生态相互作用至关重要.
- 与连续模型相比,离散模型为人口动态提供了独特的见解.
- 两叉理论对于分析生态模型中的稳定性和转变是必不可少的.
研究的目的:
- 为了研究具有霍林II型反应的离散修改的莱斯利-高尔捕食者-猎物模型.
- 分析这个离散系统中固定点的存在,稳定性和分叉.
- 探索共维度1和2的分叉,包括共振现象.
主要方法:
- 存在和局部稳定的固定点分析.
- 对共维度1和2的分叉理论和正常形状分析.
- 数字模拟用于验证理论发现.
主要成果:
- 确定了固定点的存在和局部稳定性.
- 研究的折叠,1: 1强共振,折叠翻转和1: 2强共振分叉.
- 与连续模型相比,表现出不同的动态行为.
结论:
- 离散的捕食者-猎物模型表现出复杂的动态,包括各种分叉.
- 离散系统中的二维分叉具有挑战性,但对于理解模型行为至关重要.
- 这项研究有助于理解离散的生态模型及其独特的动态.
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