Since 2004 Professor in Zoology at the University Tuebingen (Animal Evolutionary Ecology)

1999 - 2004 Professor in Zoology at the University Muenster (Animal Morphology, Ecology and Evolution)

1993-1999 Research group leader (Associate Professor) at the Max-Planck-Institute for Behavioural Physiology, Seewiesen

1992 Postdoctoral fellow (EU HCM Programme) at the Dep. of Animal and Plant Sciences, Sheffield

1990-1991 Postdoctoral research fellow at the Limburgs Universitair Centrum, Diepenbeek, Belgium

1989 Ph.D. in Zoology at the University of Antwerp (Belgium) Population and behavioural ecology of the black darter Sympetrum danae (Odonata: Libellulidae)

1984 Graduation in Zoology at the University of Antwerp (Belgium)

Marine ecology

Reef fish diversity

Function and mechanisms of red fluorescence in marine fishes

Visual predator-prey interactions in marine fishes