1. Fondation J.‐M. Aubert Champex‐Lac Switzerland
2. Department of Botany and Plant Biology Section of Biology University of Geneva Chambésy Switzerland
3. Department of Botany and Biodiversity Research University of Vienna Vienna Austria
4. Institute of Environmental Sciences University of Castilla‐La Mancha Toledo Spain
5. Münster Germany
6. Research Center of the Slovenian Academy of Sciences and Arts Ljubljana Slovenia
7. University of Nova Gorica Nova Gorica Slovenia
8. Academy of Sciences and Arts of the Republic of North Macedonia Skopje North Macedonia
9. Department of Agricultural, Food and Environmental Science University of Perugia Perugia Italy
10. Iluka Chair in Vegetation Science and Biogeography Harry Butler Institute Murdoch University Perth WA Australia
11. Department of Geography and Environmental Studies Stellenbosch University Matieland, Stellenbosch South Africa