Born 1957
1984 Diploma University of Göttingen
1991 PhD University of Bochum
1998 Habilitation University of Zürich
Professor for Plant Ecology and Geobotany in Marburg since 1999

Main research

Population biology of rare species

• Population biology of tropical understorey herbs
• The ecology of hemiparasites
• Perception of plant biodiversity
• Population biology of invasive plants
• Land use and biodiversity of mountain grasslands
• The biology of bumblebees