About the Authors

Gracia P. González-Porter

graciasyed@gmail.com (GPGP), frashai@gmx.net (FH)

Affiliations Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America, Museo de Zoología Facultad de Ciencias, Universidad Nacional Autónoma de México, México City, México

Jesús E. Maldonado

Affiliations Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, United States of America

Oscar Flores-Villela

Affiliation Museo de Zoología Facultad de Ciencias, Universidad Nacional Autónoma de México, México City, México

Richard C. Vogt

Affiliation Instituto Nacional de Pesquisas da Amazônia, Coordinaçao de Biodiversidade, Coroado, Manaus, Brazil

Axel Janke

Affiliations Goethe University Frankfurt, Institute for Ecology, Evolution and Diversity, Biologicum, Frankfurt am Main, Germany, Biodiversity and Climate Research Centre and Senckenberg Gesellschaft für Naturforschung, Ecological Genomics, Frankfurt am Main, Germany

Robert C. Fleischer

Affiliation Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America

Frank Hailer

graciasyed@gmail.com (GPGP), frashai@gmx.net (FH)

Affiliations Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America, Biodiversity and Climate Research Centre and Senckenberg Gesellschaft für Naturforschung, Ecological Genomics, Frankfurt am Main, Germany

Competing Interests

Frank Hailer thanks a company – Seabird Research, Inc. – for partial funding during the time he has worked on this project. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials. Seabird Research, Inc., funded some of the postdoctoral work by Dr. Hailer on systematics of tropical seabirds in recent years and had no influence on the scientific work presented in this manuscript.

Author Contributions

Conceived and designed the experiments: JEM FH GPGP RCF. Performed the experiments: GPGP FH JEM. Analyzed the data: GPGP FH JEM. Contributed reagents/materials/analysis tools: JEM GPGP FH RCF AJ. Wrote the paper: FH GPGP JEM. Input into writing the manuscript: OAFV RCV AJ RC.