Professor of Agroecology, University of Göttingen, Germany

Professor, IRES & Zoology, University of British Columbia

Professor for Animal Ecology and Tropical Biology, University Würzburg

Emeritus Professor of Agronomy, University of Nebraska

Head of department, Professor, Aarhus University

professor of ecology and evolutionary biology, university of michigan

Professor, Agronomy and Environmental Studies, University of Wisconsin-Madison

Distinguished Professor University of California, Davis

Researcher - CNRS

Centre for Functional Ecology - Science for People & the Planet. University of Coimbra