About the Authors

Maurine W. Dietz

M.W.Dietz@rug.nl

Affiliation Animal Ecology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Groningen, The Netherlands

Ken G. Rogers

Affiliation St. Andrews, Victoria, Australia

Theunis Piersma

Affiliations Animal Ecology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Groningen, The Netherlands, Department of Marine Ecology, Royal Netherlands Institute for Sea Research, Den Burg, Texel, The Netherlands

Competing Interests

The authors have declared that no competing interest exist.

Author Contributions

Conceived and designed the experiments: MWD TP. Performed the experiments: MWD TP. Analyzed the data: MWD KGR. Wrote the paper: MWD KGR TP.