Oxford Brookes University

Professor of Ecology, University of Pisa, CoNISMa

Full Professor of Oceanography Department, Federal University of Pernambuco

Professor of Soil Science, Kenyatta University

Bangor College - Bangor University - Central South University of Forestry and Technology

The University of Queensland

Brazilian Agricultural Research Corporation - Embrapa

Research Associate, University of Washington

University of Queensland

Max Planck Institute for Biogeochemistry