1. Dept of Arctic and Marine Biology, UiT – The Arctic Univ. of Norway Alta Norway
2. Dept of Biology, Ecology Section, Univ. of Turku Turku Finland
3. Dept of Natural History, NTNU Univ. Museum, Norwegian Univ. of Science and Technology Trondheim Norway
4. Dept of Forest Ecosystems and Society, Oregon State Univ. Corvallis OR USA
5. Dept of Ecology and Environmental Science, Umeå Univ. Umeå Sweden
6. Dept of Physiological Diversity, Helmholtz Center for Environmental Research – UFZ Leipzig Germany
7. German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Leipzig Germany
8. Dept of Ecology and Genetics, Univ. of Oulu Oulu Finland