Navjot S. Sodhi is Professor at the National University of Singapore. An associate/subject editor of Conservation Biology, the Auk, and Biotropica, Navjot received his PhD from the University of Saskatchewan, Canada. A recipient of National Geographic Society grants, he has also spent time as a Bullard Fellow at Harvard University, where he holds an adjunct associate position. Barry W. Brook is Professor and Director of the Research Institute for Climate Change and Sustainability at the University of Adelaide, Australia. His research interests include climate change, global ecology and extinction dynamics. Barry serves on the editorial boards of Ecological Research and Raffles Bulletin of Zoology and is a member of the Australian Research Council College of Experts and F1000 Biology. In 2006 he was awarded the Fenner Medal by the Australian Academy of Sciences. Corey J. A. Bradshaw is Associate Professor and Principal Research Fellow at Charles Darwin University, Australia. He earned a doctoral degree from the University of Otago, New Zealand and has extensively researched marine and terrestrial vertebrate populations, with an emphasis on extinction modelling and ecological theory. Corey is an Associate Editor for Journal of Animal Ecology.