1) Department of Agroecology & Environment, Agroscope, Zurich; 2) University of Zurich …

University of Western Australia (Adjunct)

The University of Sheffield

Regents' Professor of Ecology, Northern Arizona University

Mendel University in Brno

University of British Columbia Okanagan

Cientifico Titular del CSIC

Chair in Soil Microbial Ecology, Lancaster University

Professor of Ecosystem Ecology, University of Washington

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