Head of Department, Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW)
Professor of Seasonal timing of behaviour, Groningen University
Professor of Ecological genetics, Wageningen University
Prof. Dr Marcel E. Visser is an evolutionary ecologist who works on seasonal timing of growth and reproduction. He combines field studies on the fitness consequences of timing in his long-term (1955-present) study populations of a small songbird, the great tit (Parus major), with work under controlled conditions to study the cues used in reproductive timing and with genomic work, to look at the genetics underlying timing. He furthermore addresses how global climate change impacts not only the timing of reproduction of the great tit but also one of its main prey species, the winter moth, and the host plant of the winter moth, the oak. Visser is head of Department of the Animal Ecology department of the Netherlands Institute of Ecology (NIOO-KNAW) and professor of Seasonal timing of behaviour at Groningen University and of Ecological genetics at Wageningen University.