About the Authors

A. Whitman Miller

millerw@si.edu

Affiliation Smithsonian Environmental Research Center, Edgewater, Maryland, United States of America

Amanda C. Reynolds

Affiliation Smithsonian Environmental Research Center, Edgewater, Maryland, United States of America

Cristina Sobrino

Affiliation Universidad de Vigo, Vigo, Pontevedra, Spain

Gerhardt F. Riedel

Affiliation Smithsonian Environmental Research Center, Edgewater, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AWM CS GFR. Performed the experiments: AWM ACR GFR. Analyzed the data: AWM ACR CS GFR. Contributed reagents/materials/analysis tools: AWM ACR CS GFR. Wrote the paper: AWM ACR CS GFR.