About the Authors

Charles G. Willis

Affiliations Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Cambridge, Massachusetts, United States of America, Department of Biology, Duke University, Durham, North Carolina, United States of America

Brad R. Ruhfel

Affiliation Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Cambridge, Massachusetts, United States of America

Richard B. Primack

Affiliation Department of Biology, Boston University, Boston, Massachusetts, United States of America

Abraham J. Miller-Rushing

Affiliations USA National Phenology Network, Tucson, Arizona, United States of America, The Wildlife Society, Bethesda, Maryland, United States of America

Jonathan B. Losos

Affiliation Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Cambridge, Massachusetts, United States of America

Charles C. Davis

cdavis@oeb.harvard.edu

Affiliation Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CGW CD. Performed the experiments: CGW BRR RP AJMR JBL CD. Analyzed the data: CGW. Contributed reagents/materials/analysis tools: CD. Wrote the paper: CGW CD. Helped to revise the manuscript: RP AJMR JBL.