1. Terrestrial Ecology Section Department of Biology University of Copenhagen CopenhagenDenmark
2. Center for Permafrost (CENPERM) Department of Geosciences and Natural Resource Management University of Copenhagen CopenhagenDenmark
3. Department of Geochemistry Geological Survey of Denmark and Greenland (GEUS) CopenhagenDenmark
4. Department of Earth Sciences University of Gothenburg GothenburgSweden
5. Gothenburg Global Biodiversity Centre Gothenburg Sweden