Persistence/extinction scenarios in an almost periodic metapopulation with competition and habitat destruction

Pablo Amster; Gonzalo Robledo; Daniel Sepúlveda

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arXiv · 2412.02952

Persistence/extinction scenarios in an almost periodic metapopulation with competition and habitat destruction

Pablo Amster·Gonzalo Robledo·Daniel Sepúlveda

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Abstract

We study an almost periodic version of a metapopulation model developed by Tilman \textit{et.al} and Nee \textit{et.al} in the nineties, which generalizes the classical Levins approach by considering several species in competition affected by habitat destruction. The novelty is to assume that the colonization and extinction rates are positive almost periodic functions whereas our main results show that the predominance of either colonization or extinction forces of a specific species is equivalent to the property of exponential dichotomy of a scalar linear differential equation. By using well known results of exponential dichotomy theory, we carry out a recursive and exhaustive description of persistence/extinction scenarios. In addition, we start a preliminary discussion describing a more elusive behavior when the colonization and extinction forces are similar in average.

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Pablo Amster, Gonzalo Robledo, Daniel Sepúlveda. 2024-12-04. Persistence/extinction scenarios in an almost periodic metapopulation with competition and habitat destruction. https://arxiv.org/abs/2412.02952

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