About the Authors

Gilberto E. Flores

Affiliation Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, Colorado, United States of America

Scott T. Bates

Affiliation Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, Colorado, United States of America

Dan Knights

Affiliation Department of Computer Science, University of Colorado, Boulder, Colorado, United States of America

Christian L. Lauber

Affiliation Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, Colorado, United States of America

Jesse Stombaugh

Affiliation Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, United States of America

Rob Knight

Affiliations Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, United States of America, Howard Hughes Medical Institute, University of Colorado, Boulder, Colorado, United States of America

Noah Fierer

noah.fierer@colorado.edu

Affiliations Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, Colorado, United States of America, Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: STB CLL NF. Analyzed the data: GEF DK JS RK NF. Contributed reagents/materials/analysis tools: RK NF. Wrote the paper: GEF NF. Sample collection: STB CLL.