On Optimal Size and Number of Reserves for Metapopulation Persistence
نویسندگان
چکیده
منابع مشابه
Effects of colonization asymmetries on metapopulation persistence.
Ocean currents, prevailing winds, and the hierarchical structures of river networks are known to create asymmetries in re-colonization between habitat patches. The impacts of such asymmetries on metapopulation persistence are seldom considered, especially rarely in theoretical studies. Considering three classical models (the island, the stepping stone and the distance-dependent model), we explo...
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This thesis uses spatially distributed models to test the Metapopulation Hypothesis, which asserts that migration between local populations promotes the persistence of a regional “metapopulation” despite short-term local fluctuations, or even temporary local extinctions, on the local scale. A review of relevant models finds that:1. These models found nothing to disagree with the hypothesis. Sub...
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Metapopulation theory for a long time has assumed dispersal to be symmetric, i.e. patches are connected through migrants dispersing bi-directionally without a preferred direction. However, for natural populations symmetry is often broken, e.g. for species in the marine environment dispersing through the transport of pelagic larvae with ocean currents. The few recent studies of asymmetric disper...
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Comment on "Metapopulation persistence with age-dependent disturbance or succession".
Simple metapopulation models with random disturbances are used in species conservation or management, relying on the condition for persistence that the per-patch colonization rate be greater than the per-patch extinction rate. For a general model incorporating the role of succession or patch age-dependent extinction, I show that persistence requires the per-patch colonization rate to be greater...
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ژورنال
عنوان ژورنال: Journal of Theoretical Biology
سال: 2000
ISSN: 0022-5193
DOI: 10.1006/jtbi.1999.1060