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- November 6, 2017.
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- 1Center for Population Biology and Department of Evolution and Ecology, University of California, Davis.
- 2Department of Anthropology, University of California, Davis.
- 3Current address: Department of Biological Science, Columbia University, New York, NY
- To whom correspondence should be addressed: jeremy.jackson.berg{at}gmail.com, gmcoop{at}ucdavis.edu