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Fun to start 2020 with this! Awesome collab with @gbradburd @quant_ecology @patitepui LM Angeloni @fieldgenomics. Wild pedigrees & genomics showed genetic rescue in wild guppy populations w/out swamping local environment-associated SNPs. cell.com/current-biolog…
(summary below)
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Sarah W Fitzpatrick
@SarahFitz
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1/n The evolutionary role of gene flow has been classically debated, a common perspective focuses on homogenization & constraints on local adaptation. But, a surge of recent evidence for genetic rescue suggests gene flow often provides fitness benefits to small populations.
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Sarah W Fitzpatrick
@SarahFitz
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2/n Despite accumulating experimental evidence for positive fitness effects of gene flow and a few iconic examples of GR in conservation (eg, Florida panthers), assisted gene flow is not widely used in wildlife management - in part bc there is still so much uncertainty and risk.
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Sarah W Fitzpatrick
@SarahFitz
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3/n We took advantage of experimental translocations of guppies in Trinidad to study the effects of new gene flow from an originally adaptively differentiated population into two small and native headwater populations that were previously isolated from gene flow.
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