1. Institute of Botany; Academy of Sciences of the Czech Republic; Dukelská 135 CZ-379 82 Třeboň Czech Republic
2. Department of Botany; Faculty of Sciences; University of South Bohemia; Na Zlate Stoce 1 CZ-370 05 České Budějovice Czech Republic
3. Terrestrial Ecology Group; Department of Ecology; Autonomous University of Madrid; 28049 Madrid Spain
4. Landcare Research NZ Ltd; Private Bag 3127 Hamilton New Zealand
5. Forestry and Technology Centre of Catalonia; E-28240 Solsona Spain
6. Department of Botany; Faculty of Sciences; University of South Bohemia; Na Zlaté Stoce 1 CZ-370 05 České Budějovice Czech Republic
7. Institute of Entomology; Biology Centre; Czech Academy of Sciences; CZ-370 05 České Budějovice Czech Republic