University of Queensland School of the Environment, and CSIRO Environment

Research Scientist

Wageningen University

Kellogg Biological Station, Michigan State University

Federal University of Rio de Janeiro

Hiroshima University

Director, Horn Point Laboratory, University of Maryland Center for Environmental Science

Professor of Ecology, Universidade de Vigo, Spain

Emeritus Guest Scientist, NIOO/Netherlands Institute of Ecology, Wageningen,

Plymouth Marine Laboratory