Analytical solution of metapopulation dynamics in a stochastic environment
نویسندگان
چکیده
منابع مشابه
Analytical solution of metapopulation dynamics in a stochastic environment.
We study a discrete stochastic linear metapopulation model to understand the effect of risk spreading by dispersion. We calculate analytically the stable distribution of populations in different habitats. The simultaneous distribution of populations in habitats has a complicated self-similar structure, but the population in each habitat follows a log-normal distribution. A class of discrete sto...
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We study a class of chain-binomial metapopulation models, giving special attention to the ‘mainland–island’ configuration, where patches receive immigrants from an external source. We evaluate the distribution of the number nt of occupied patches at any census time t and establish a law of large vailable online 26 March 2010 eywords: etapopulation numbers that identifies a deterministic traject...
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The term ‘metapopulation’ is used to describe individuals of a species living as a group of local populations in geographically separate, but connected, habitat patches (Levins 1970, Hanski 1999). Patches may become empty through local extinction and empty patches may be recolonised by migrants from other local populations. A balance between local extinction and colonisation may be reached whic...
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Classical metapopulations are groups of local populations living in networks of spatially distinct habitat patches in a balance between local extinctions and recolonizations of empty habitat. Models are needed for understanding and predicting metapopulation dynamics in changing landscapes. One particularly important question is what is the effect of habitat loss to the persistence of a metapopu...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2012
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.86.045102