About the Authors

Meng-Hua Li

menghua.li@helsinki.fi

Affiliation Ecological Genetics Research Unit, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland

Kaisa Välimäki

Affiliation Ecological Genetics Research Unit, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland

Markus Piha

Affiliation Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland

Timo Pakkala

Affiliation Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland

Juha Merilä

Affiliation Ecological Genetics Research Unit, Department of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MHL. Analyzed the data: MHL. Wrote the paper: MHL JM. Performed the laboratory work: KV. Conducted the fieldwork: MP TP.