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Media type:
E-Article
Title:
Positive association between population genetic differentiation and speciation rates in New World birds
Contributor:
Harvey, Michael G.;
Seeholzer, Glenn F.;
Smith, Brian Tilston;
Rabosky, Daniel L.;
Cuervo, Andrés M.;
Brumfield, Robb T.
Published:
Proceedings of the National Academy of Sciences, 2017
Published in:
Proceedings of the National Academy of Sciences, 114 (2017) 24, Seite 6328-6333
Language:
English
DOI:
10.1073/pnas.1617397114
ISSN:
0027-8424;
1091-6490
Origination:
Footnote:
Description:
SignificanceThe causes of differentiation among populations are well circumscribed, but it remains unclear if they impact the proliferation of organisms over deep time. If, as some recent theory and observations suggest, population differentiation is not a rate-limiting control on species diversification, then the causes of population differentiation are unlikely to have macroevolutionary effects. We provide a large-scale test of the link between standardized estimates of rates of differentiation from population genetic data and speciation rates. Population differentiation rates predict speciation rates across New World birds, confirming the potential macroevolutionary importance of causes of differentiation. We also find that population differentiation and speciation rates are more tightly linked in the Tropics, which may help explain latitudinal differences in diversification dynamics.