Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 108, Issue 51, Pages 20444-20448Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1112563108
Keywords
Bayesian analysis; coalescent analysis; population genetics
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Funding
- National Science Foundation [DBI-0906018]
- German Research Foundation (DFG) [FE 1161/1-1]
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The genetic and demographic impact of European contact with Native Americans has remained unclear despite recent interest. Whereas archeological and historical records indicate that European contact resulted in widespread mortality from various sources, genetic studies have found little evidence of a recent contraction in Native American population size. In this study we use a large dataset including both ancient and contemporary mitochondrial DNA to construct a high-resolution portrait of the Holocene and late Pleistocene population size of indigenous Americans. Our reconstruction suggests that Native Americans suffered a significant, although transient, contraction in population size some 500 y before the present, during which female effective size was reduced by similar to 50%. These results support analyses of historical records indicating that European colonization induced widespread mortality among indigenous Americans.
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