About the Authors

Berihun Gebremedhin

Affiliation Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway

Øystein Flagstad

Affiliation Norwegian Institute of Nature Research, Sluppen, Trondheim, Norway

Afework Bekele

Affiliation Department of Zoological Science, Addis Ababa University, Addis Ababa, Ethiopia

Desalegn Chala

Affiliation Natural History Museum, University of Oslo, Oslo, Norway

Vegar Bakkestuen

Affiliations Norwegian Institute of Nature Research, Sluppen, Trondheim, Norway, Natural History Museum, University of Oslo, Oslo, Norway

Sanne Boessenkool

Affiliations Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway, Natural History Museum, University of Oslo, Oslo, Norway

Magnus Popp

Affiliation Natural History Museum, University of Oslo, Oslo, Norway

Galina Gussarova

Affiliation Natural History Museum, University of Oslo, Oslo, Norway

Audun Schrøder-Nielsen

Affiliation Natural History Museum, University of Oslo, Oslo, Norway

Sileshi Nemomissa

Affiliation Department of Plant Biology and Biodiversity Management, Addis Ababa University, Addis Ababa, Ethiopia

Christian Brochmann

Affiliation Natural History Museum, University of Oslo, Oslo, Norway

Nils Chr. Stenseth

Affiliation Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway

Laura S. Epp

laura.saskia.epp@gmail.com

Affiliations Natural History Museum, University of Oslo, Oslo, Norway, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Periglacial Research, Potsdam, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BG ØF AB SB MP SN CB NCS LSE. Performed the experiments: BG LSE AS-N. Analyzed the data: BG ØF SB DC VB MP GG AS-N LSE. Contributed reagents/materials/analysis tools: BG ØF SN CB NCS. Wrote the paper: BG ØF LSE. Contributed to writing the manuscript: AB SB DC VB MP GG AS-N SN CB NCS.