1. MTA Centre for Ecological Research; Institute of Ecology and Botany; Alkotmány u. 2-4 H-2163 Vácrátót Hungary
2. Department of Plant Systematics, Ecology and Theoretical Biology; Eötvös Loránd University; Pázmány P. s. 1/C H-1117 Budapest Hungary
3. Ecology Research Group of the Hungarian Academy of Sciences; Pázmány P. s. 1/C H-1117 Budapest Hungary