professor of statistics, Colorado State University

Environment and Climate Change Canada

Norwegian Institute for Nature Research

Northern Prairie Wildlife Research Center

EcoHealth Alliance | The University of Queensland | Jeppesen Field Australia

Professor, University of Guelph

PMAS-Arid Agriculture University

Research Professor (EBD-CSIC)

USGS Eastern Environmental Science Center (Emeritus)

WildCRU, Biology Department, University of Oxford