Patchy Populations in Stochastic Environments: Critical Number of Patches for Persistence
نویسندگان
چکیده
منابع مشابه
Patchy populations in stochastic environments: critical number of patches for persistence.
We introduce a model for the dynamics of a patchy population in a stochastic environment and derive a criterion for its persistence. This criterion is based on the geometric mean (GM) through time of the spatial-arithmetic mean of growth rates. For the population to persist, the GM has to be >/=1. The GM increases with the number of patches (because the sampling error is reduced) and decreases ...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2002
ISSN: 0003-0147,1537-5323
DOI: 10.1086/324793