26. Introduction to Conservation Genetics

26. Introduction to Conservation Genetics - Conservation of...

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Conservation of Populations in Fragmented Landscapes (…continued from Fri Oct, 28) Geographically isolated populations will fluctuate based on both local factors affecting birth and death rates, but also immigration and emigration rates with other populations.
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Metapopulations Metapopulation an assemblage of discrete local populations connected by immigration and emigration Local Population a set of individuals with a high probability of interacting Patch the area in which a local population lives Matrix areas of unsuitable habitat surrounding patches
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Bighorn sheep in the SE California desert are an example of a metapopulation
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What do metapopulations have to do with extinction? A metapopulation can persist even if local populations go extinct as long as colonizations of unoccupied patches are allowed to occur Local Extinction - loss of all individuals in an occupied patch Local Colonization - immigration of new individuals into and unoccupied patch
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0 1 0 1 0 1 1 0 1 1 1 1 1 1 1 0 1 1 1 0 1 1 0 1 1 Balance between local extinctions in occupied patches and colonizations of unoccupied patches Metapopulation Persistence
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1 0 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1
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0 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 0 0 1 0 0
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1 1 0 1 1 1 1 1 1 1 0 0 1 1 0 0 1 0 1 0 1 1 1 1 1
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This note was uploaded on 12/17/2011 for the course ZOO 360 taught by Professor Staff during the Fall '08 term at Wisconsin.

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26. Introduction to Conservation Genetics - Conservation of...

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