Data from: Do stressful conditions make adaptation difficult? Guppies in the oil-polluted environments of southern Trinidad

Gregor Rolshausen, Dawn A. T. Phillip, Denise M. Beckles, Ali Akbari, Subhasis Ghoshal, Patrick B. Hamilton, Charles R. Tyler, Alan G. Scarlett, Indar Ramnarine, Paul Bentzen & Andrew P. Hendry
The ability of populations to rapidly adapt to new environments will determine their future in an increasingly human-modified world. Although meta-analyses do frequently uncover signatures of local adaptation, they also reveal many exceptions. We suggest that particular constraints on local adaptation might arise when organisms are exposed to novel stressors, such as anthropogenic pollution. To inform this possibility, we studied the extent to which guppies (Poecilia reticulata) show local adaptation to oil pollution in southern...
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