About the Authors

Michael Hofreiter

msh503@york.ac.uk

Affiliations Research Group Molecular Ecology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany, Department of Biology, University of York, York, United Kingdom

Eva Kreuz

Affiliation Research Group Molecular Ecology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Jonas Eriksson

Affiliations Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany, Animal Ecology, Evolutionary Biology Centre (EBC), Uppsala University, Uppsala, Sweden

Grit Schubert

Affiliation Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Gottfried Hohmann

Affiliation Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MH JE GH. Performed the experiments: EK GS. Analyzed the data: MH EK. Contributed reagents/materials/analysis tools: JE GH. Wrote the paper: MH JE GS GH.