Born 1957 1984 Diploma University of GÃ¶ttingen 1991 PhD University of Bochum 1998 Habilitation University of ZÃ¼rich Professor for Plant Ecology and Geobotany in Marburg since 1999
Population biology of rare species
â¢ Population biology of tropical understorey herbs â¢ The ecology of hemiparasites â¢ Perception of plant biodiversity â¢ Population biology of invasive plants â¢ Land use and biodiversity of mountain grasslands â¢ The biology of bumblebees
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