About the Authors

Ignacio Munilla

avelando@uvigo.es (AV); ignacio.munilla@gmx.es (IM)

Affiliation Departamento de Botánica, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain

Meritxell Genovart

Current address: Population Ecology Group, Institut Mediterrani d’Estudis Avançats, Esporles, Illes Balears, Spain

Affiliation Departamento de Botánica, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain

Vitor H. Paiva

Affiliation Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Coimbra, Portugal

Alberto Velando

avelando@uvigo.es (AV); ignacio.munilla@gmx.es (IM)

Affiliation Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Vigo, Galicia, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: MG AV IM VHP. Wrote the paper: IM AV MG VHP. Conceived and designed the study: AV IM. Carried out and supervised fieldwork in Galicia: IM AV. Obtained Atlantic samples: VHP. Obtained Mediterranean samples: MG. Analyzed and interpreted genetic data: MG AV. Analyzed other data: IM VHP. Prepared the manuscript: IM.