University of Freiburg

University of Regensburg, Germany

Professor of Biogeography, GIB & BayCEER, University of Bayreuth

Emeritus Professor of Botany, University of Hawaii

Professor Plant Ecology, TU Berlin, Germany

IUCN, FAO, WCF, UniL

Professor of Nature Conservation

University of Oldenburg, Germany

Professor of Ecosystem Science/Plant Ecology, Technische Universität Berlin, Germany

Emeritus Professor, University of Queensland