Impact of dispersal on the stability of metapopulations - Archive ouverte HAL
Article Dans Une Revue Journal of Theoretical Biology Année : 2016

Impact of dispersal on the stability of metapopulations

Résumé

Dispersal is a key ecological process, that enables local populations to form spatially extended systems called metapopulations. In the present study, we investigate how dispersal affects the linear stability of a general single-species metapopulation model. We discuss both the influence of local within-patch dynamics and the effects of various dispersal behaviors on stability. We find that positive density-dependent dispersal and positive density-dependent settlement are destabilizing dispersal behaviors while negative density-dependent dispersal and negative density-dependent settlement are stabilizing. It is also shown that dispersal has a stabilizing impact on heterogeneous metapopulations that correlates positively with the number of patches and the connectance of metapopulation networks.
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Dates et versions

hal-01649840 , version 1 (27-11-2017)

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Eric Tromeur, Lars Rudolf, Thilo Gross. Impact of dispersal on the stability of metapopulations. Journal of Theoretical Biology, 2016, 392, pp.1 - 11. ⟨10.1016/j.jtbi.2015.11.029⟩. ⟨hal-01649840⟩
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