ACKNOWLEDGMENTS
We thank P. Taberlet for constructive discussions. This study is funded
by the European Research Council under the European Community’s Horizon
2020 Programme, Grant Agreement no. 772284 (IceCommunities). WT, TM and
LG also thank the rom the French Agence Nationale de la Recherche (ANR)
through the GlobNets (ANR‐16‐CE02‐0009) project and from ‘Investissement
d’Avenir’ grant managed by the ANR (Montane: OSUG@2020: ANR‐10‐LAB‐56).