1. Max Planck Institute for Biogeochemistry, 07745 Jena, Germany.
2. Institute for Atmospheric and Climate Science, ETH Zürich, Universitätsstrasse 16, 8092 Zürich, Switzerland.
3. Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
4. Norsk Institutt for Skog og Landskap, N-1431 Ås, Norway.
5. Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720, USA.
6. Agroscope ART, Federal Research Station, Reckenholzstr. 191, CH-8046 Zürich, Switzerland.
7. McMaster Centre for Climate Change, McMaster University, Hamilton, Ontario L8S 4L8, Canada.
8. European Commission, Joint Research Center, Institute for Environment and Sustainability, I-21027 Ispra, Italy.
9. Department of Biology, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Belgium.
10. Remote Sensing of Environmental Dynamics Laboratory, DISAT, University of Milano-Bicocca, 20126 Milano, Italy.
11. Servizi Forestali, Agenzia per l’Ambiente, Provincia Autonoma di Bolzano, 39100 Bolzano, Italy.
12. Faculty of Sciences and Technologies, Free University of Bozen-Bolzano, Piazza Università 1, 39100 Bolzano, Italy.
13. Harvard University Department of Organismic and Evolutionary Biology, Harvard University Herbaria, 22 Divinity Avenue, Cambridge, MA 02138, USA.