Influence of invasion on natural selection in dispersal-structured populations

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外文摘要：© 2022 Elsevier B.V.We investigate how initial and boundary conditions influence the competition dynamics and outcome in dispersal-structured populations. The study is carried out through numerical modeling of the heterogeneous Brownian bugs model, in which individuals are characterized by diversified diffusion coefficients and compete for resources within a finite interaction range. We observed that if instead of being distributed randomly across the domain the population is initially localized within a small region, the dynamics and the stationary state of the system differ significantly. The outcome of the natural selection is determined by different competition processes, fluctuations, and spreading of the organisms.

外文关键词：

Brownian bugs modelCompetitionDispersal-structured populationsNatural selectionPopulation dynamics

作者：

Navidad Maeso D.、Patriarca M.、Heinsalu E.

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作者单位：

National Institute of Chemical Physics and Biophysics

出版年：

2022

DOI：

10.1016/j.physa.2022.127389

Physica

ISSN：0378-4371

年,卷(期)：2022.598

参考文献量57