About the Authors

Boris H. Kramer

Contributed equally to this work with: Boris H. Kramer, Alexandra Schrempf

Kramer@demogr.mpg.de

Affiliation Max-Planck-Institute for Demographic Research, Konrad-Zuse-Str. 1, D-18055, Rostock, Germany

Alexandra Schrempf

Contributed equally to this work with: Boris H. Kramer, Alexandra Schrempf

Affiliation Zoology / Evolutionary Biology lab, University of Regensburg, Universitätsstraße 31, D-93040, Regensburg, Germany

Alexander Scheuerlein

Affiliation Max-Planck-Institute for Demographic Research, Konrad-Zuse-Str. 1, D-18055, Rostock, Germany

Jürgen Heinze

Affiliation Zoology / Evolutionary Biology lab, University of Regensburg, Universitätsstraße 31, D-93040, Regensburg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JH A. Schrempf A. Scheuerlein BHK. Performed the experiments: A. Schrempf. Analyzed the data: BHK A. Scheuerlein A. Schrempf. Contributed reagents/materials/analysis tools: A. Schrempf JH. Wrote the paper: BHK A. Schrempf A. Scheuerlein JH.