About the Authors

Kimmo Kalevi Kahilainen

kimmo.kahilainen@helsinki.fi

Affiliations Kilpisjärvi Biological Station, University of Helsinki, Kilpisjärvi, Finland, Department of Environmental Sciences, University of Helsinki, Helsinki, Finland

William Paul Patterson

Affiliation Department of Geological Sciences, Saskatchewan, Isotope Laboratory, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

Eloni Sonninen

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

Chris Harrod

Affiliations School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom, Instituto de Ciencias Naturales Alexander Von Humboldt, Universidad de Antofagasta, Antofagasta, Chile

Mikko Kiljunen

Affiliation Department of Biological and Environmental Sciences, University of Jyväskylä, Jyväskylä, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KKK WPP MK. Performed the experiments: KKK WPP ES CH MK. Analyzed the data: KKK WPP ES CH MK. Contributed reagents/materials/analysis tools: KKK WPP ES CH MK. Contributed to the writing of the manuscript: KKK WPP ES CH MK.