Sociology, Princeton University

Yale University

Research Professor of sociology, University of sydney

Max Planck Institute for the Study of Religious and Ethnic Diversity

University of Amsterdam, International Migration Institute - Oxford University

Chair in Global Flyway Ecology at University of Groningen/Royal NIOZ

Director, Max Planck Institute of Animal Behavior and Professor, University of Konstanz

Professor, Deakin Marine, Deakin University (Warrnambool), Australia

University College London (UCL)

Professor of Geography, Sussex Centre for Migration Research (SCMR), University of …