Coexistence in a metapopulation model with explicit local dynamics

Zhilan Feng; Robert Swihart; Yingfei Yi; Huaiping Zhu

doi:10.3934/mbe.2004.1.131

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2004, Volume 1, Issue 1: 131-145. Doi: 10.3934/mbe.2004.1.131

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Coexistence in a metapopulation model with explicit local dynamics

1.
Department of Mathematics, Purdue University, West Lafayette, IN 47907
2.
Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907
3.
School of Mathematics, Georgia Institute of Technology, Atlanta, GA 30332
4.
Laboratory for Industrial and Applied Mathematics, Department of Mathematics and Statistics, York University, 4700 Keele Street, Toronto, ON, M3J 1P3

Received: February 2004

Revised: March 2004

Published: February 2004

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Abstract

Many patch-based metapopulation models assume that the local population within each patch is at its equilibrium and independent of changes in patch occupancy. We studied a metapopulation model that explicitly incorporates the local population dynamics of two competing species. The singular perturbation method is used to separate the fast dynamics of the local competition and the slow process of patch colonization and extinction. Our results show that the coupled system leads to more complex outcomes than simple patch models which do not include explicit local dynamics. We also discuss implications of the model for ecological systems in fragmented landscapes.

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Mathematics Subject Classification: 92D25 and 34C60 (34E15 37N25 92D40).

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