About the Authors

Alberto Vicens

Affiliation Reproductive Ecology and Biology Group, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain

Lena Lüke

Affiliation Reproductive Ecology and Biology Group, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain

Eduardo R. S. Roldan

roldane@mncn.csic.es

Affiliation Reproductive Ecology and Biology Group, Museo Nacional de Ciencias Naturales (CSIC), Madrid, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ERSR AV. Performed the experiments: AV LL. Analyzed the data: AV LL. Contributed reagents/materials/analysis tools: AV LL. Wrote the paper: AV LL ERSR.