Distinguished Professor of Biology Emeritus, University of New Mexico

Professor, Australian National University

Auburn University

University of Bath

Staff Scientist, Smithsonian Tropical Research Institute, Universidad de Costa Rica, Museum …

Professor of Ecology, Evolution and Behavior, University of Minnesota

Professor of Behavioural Biology, University of Antwerp, Belgium

Professor, Dept. of Ecology & Evolutionary Biology, University of Toronto

Professor of Ecology, University of Milan

Professor and Chair, Department of Integrative Biology, Michigan State University