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Limits of large metapopulations with patch-dependent extinction probabilities

Published online by Cambridge University Press:  01 July 2016

R. McVinish*
Affiliation:
University of Queensland
P. K. Pollett*
Affiliation:
University of Queensland
*
∗ Postal address: Department of Mathematics, University of Queensland, Brisbane, QLD 4072, Australia.
∗ Postal address: Department of Mathematics, University of Queensland, Brisbane, QLD 4072, Australia.
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Abstract

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We propose a model for the presence/absence of a population in a collection of habitat patches. This model assumes that colonisation and extinction of the patches occur as distinct phases. Importantly, the local extinction probabilities are allowed to vary between patches. This permits an investigation of the effect of habitat degradation on the persistence of the population. The limiting behaviour of the model is examined as the number of habitat patches increases to ∞. This is done in the case where the number of patches and the initial number of occupied patches increase at the same rate, and for the case where the initial number of occupied patches remains fixed.

Information

Type
General Applied Probability
Copyright
Copyright © Applied Probability Trust 2010