About the Authors

Dennis M. Hansen

dmhansen@stanford.edu

Current address: Department of Biology, Stanford University, Stanford, California, United States of America

Affiliation Institute of Environmental Sciences, University of Zurich, Zurich, Switzerland

Christopher N. Kaiser

Current address: Ecosystem Management, Institute for Terrestrial Ecosystems, Swiss Federal Institute of Technology/Eidgenössische Technische Hochschule Zürich (ETH), Zurich, Switzerland

Affiliation Institute of Environmental Sciences, University of Zurich, Zurich, Switzerland

Christine B. Müller

† Deceased.

Affiliation Institute of Environmental Sciences, University of Zurich, Zurich, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DH CK CM. Performed the experiments: DH CK CM. Analyzed the data: DH CK CM. Wrote the paper: DH CK CM.