期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 276, 期 1661, 页码 1527-1534出版社
ROYAL SOC
DOI: 10.1098/rspb.2008.1567
关键词
climate change; spatial dynamics; gradient; mutation surfing; metapopulation; drift
资金
- NERC studentship [12083]
- Natural Environment Research Council [NE/D521349/2, NE/C510467/1] Funding Source: researchfish
We investigate neutral evolution during range shifts in a strategic model of a metapopulation occupying a climate gradient. Using heritable, neutral markers, we track the spatio-temporal fate of lineages. Owing to iterated founder effects ('mutation surfing'), survival of lineages derived from the leading range limit is enhanced. At trailing limits, where habitat suitability decreases, survival is reduced (mutations 'wipe out'). These processes alter (i) the spatial spread of mutations, (ii) origins of persisting mutations and (iii) the generation of diversity. We show that large changes in neutral evolution can be a direct consequence of range shifting.
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