About the Authors

Juan A. Añel

juan.anel@smithschool.ox.ac.uk

Affiliations Smith School of Enterprise and the Environment, University of Oxford, Oxford, United Kingdom, EPhysLab, Facultade de Ciencias, Universidad de Vigo, Ourense, Galicia, Spain

Marcos Blanco-Durán

Affiliation EPhysLab, Facultade de Ciencias, Universidad de Vigo, Ourense, Galicia, Spain

Luis Gimeno

Affiliation EPhysLab, Facultade de Ciencias, Universidad de Vigo, Ourense, Galicia, Spain

Laura de la Torre

Affiliation EPhysLab, Facultade de Ciencias, Universidad de Vigo, Ourense, Galicia, Spain

Competing Interests

Co-author Juan A. Añel is a PLoS ONE Editorial Board member. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JAA LG LdlT. Performed the experiments: JAA MBD. Analyzed the data: JAA MBD LdlT. Wrote the paper: JAA LG LdlT. Digitized the data: MBD.