About the Authors

Courtney A. Hofman

hofmanc@si.edu

Affiliations Department of Anthropology, University of Maryland, College Park, Maryland, United States of America, Program in Human Ecology and Archaeobiology, Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, United States of America, Center for Conservation and Evolutionary Genetics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America

Torben C. Rick

Affiliation Program in Human Ecology and Archaeobiology, Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, United States of America

Melissa T. R. Hawkins

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

W. Chris Funk

Affiliation Department of Biology, Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, United States of America

Katherine Ralls

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

Christina L. Boser

Affiliation The Nature Conservancy, San Francisco, California, United States of America

Paul W. Collins

Affiliation Department of Vertebrate Zoology, Santa Barbara Museum of Natural History, Santa Barbara, California, United States of America

Tim Coonan

Affiliation National Park Service, Channel Islands National Park, Ventura, California, United States of America

Julie L. King

Affiliation Catalina Island Conservancy, Avalon, California, United States of America

Scott A. Morrison

Affiliation The Nature Conservancy, San Francisco, California, United States of America

Seth D. Newsome

Affiliation Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America

T. Scott Sillett

Affiliation Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia, United States of America

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

Jesus 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

Competing Interests

JEM is a current Academic Editor and RCF was a past Academic Editor for PLOS ONE. The authors received funding from a commercial source, Amazon Web Services Education Research Grant. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CAH TCR JEM RCF PWC WCF SDN. Performed the experiments: CAH JEM TCR. Analyzed the data: CAH JEM TCR MTRH. Contributed reagents/materials/analysis tools: CAH RCF JEM. Wrote the paper: CAH TCR KR TSS WCF JEM. Acquired samples for analysis: CAH PWC TC SAM CLB WCF JLK.