1. Department of Biological Sciences; University of Bergen; Bergen Norway
2. Institute of Integrative Biology; ETH Zürich; Zürich Switzerland
3. Department of Clinical Research and Swiss Institute of Bioinformatics; University of Bern; Bern Switzerland
4. Institute of Natural Resource Sciences; ZHAW Wädenswil; Wädenswil Switzerland
5. Swiss Federal Research Institute for Forest, Snow and Landscape WSL; Birmensdorf Switzerland
6. Department of Ecology and Genetics; Uppsala University; Uppsala Sweden
7. Department of Ecology and Evolution; University of Lausanne; Lausanne Switzerland