About the Authors

Jelle S. van Zweden

jvzweden@bio.ku.dk

Affiliations Centre for Social Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark, Biology I, University of Regensburg, Regensburg, Germany

Jürgen Heinze

Affiliation Biology I, University of Regensburg, Regensburg, Germany

Jacobus J. Boomsma

Affiliation Centre for Social Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark

Patrizia d'Ettorre

Affiliations Centre for Social Evolution, Department of Biology, University of Copenhagen, Copenhagen, Denmark, Biology I, University of Regensburg, Regensburg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JSvZ JH Pd. Performed the experiments: JSvZ. Analyzed the data: JSvZ. Wrote the paper: JSvZ JJB Pd.