Levins-style metapopulation model did not accurately reflect the dynamics of a stream fish metapopulation. Describe the major assumptions of the Levins model and explain how they were violated by the fish metapopulatio
Levins-style metapopulation model did not accurately reflect the dynamics of a stream fish metapopulation. Describe the major assumptions of the Levins model and explain how they were violated by the fish metapopulatio
In a landscape of linked patches, metapopulation models explain the colonisation and extinction of populations. As a balance between the rate of active immigration into empty sites and the rate of extinction in inhabited sites, Levins modelled the fraction of population sites occupied. Several variants of the Levins model have been proposed that assume either dependent or independent of regional occurrence is the likelihood of local colonisation or extinction.
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