1. Plant Sciences (IBG‐2) Forschungszentrum Jülich GmbH D‐52425 Jülich Germany
2. Department of Biological Sciences Macquarie University North Ryde NSW 2109 Australia
3. Institute of Agricultural and Environmental Sciences Estonian University of Life Sciences Kreutzwaldi 1 Tartu 51006 Estonia
4. Estonian Academy of Sciences Kohtu 6 Tallinn 10130 Estonia
5. Department for Nature Conservation and Landscape Planning Anhalt University of Applied Sciences Strenzfelder Allee 28 06406 Bernburg Germany
6. Department of Environmental and Biological Sciences University of Eastern Finland FI‐80101 Joensuu Finland
7. Plant Ecophysiology Institute of Environmental Biology Utrecht University 3512 PN Utrecht the Netherlands