漂移速率不同的平流斑块环境中的扩散演化

IF 1.7 4区数学 Q2 MATHEMATICS, APPLIED

SIAM Journal on Applied Dynamical Systems Pub Date : 2024-02-21 DOI:10.1137/22m1542027

Shanshan Chen, Jie Liu, Yixiang Wu

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引用次数: 0

摘要

SIAM 应用动力系统期刊》第 23 卷第 1 期第 696-720 页，2024 年 3 月。摘要.在本文中，我们研究了一个双流物种 Lotka-Volterra 竞争斑块模型，该模型中的斑块沿一条线排列。除了扩散率之外，这两个物种应该是相同的。对于每个物种，斑块间的扩散率相同，而漂移率不同。我们的结果表明，漂移率的凸性对竞争结果有显著影响：如果漂移率是凸性的，则扩散率较大的物种在竞争中获胜；如果漂移率是凹性的，则扩散率较小的物种在竞争中获胜。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evolution of Dispersal in Advective Patchy Environments with Varying Drift Rates

SIAM Journal on Applied Dynamical Systems, Volume 23, Issue 1, Page 696-720, March 2024.
Abstract.In this paper, we study a two stream species Lotka–Volterra competition patch model with the patches aligned along a line. The two species are supposed to be identical except for the diffusion rates. For each species, the diffusion rates between patches are the same, while the drift rates vary. Our results show that the convexity of the drift rates has a significant impact on the competition outcomes: if the drift rates are convex, then the species with the larger diffusion rate wins the competition; if the drift rates are concave, then the species with the smaller diffusion rate wins the competition.

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来源期刊

SIAM Journal on Applied Dynamical Systems 物理-物理：数学物理

CiteScore

3.60

自引率

4.80%

发文量

审稿时长

6 months

期刊介绍： SIAM Journal on Applied Dynamical Systems (SIADS) publishes research articles on the mathematical analysis and modeling of dynamical systems and its application to the physical, engineering, life, and social sciences. SIADS is published in electronic format only.