C. Barry Cox was formerly Head of Biological Sciences, King's College, London, UK. Richard J. Ladle is Titular Professor of Conservation Biogeography at the Federal University of Alagoas on the north-east coast of Brazil. He is also a Senior Research Associate at the School of Geography in Oxford University, as well as the director of Tamandua Environmental Consultants. Peter D. Moore is Emeritus Reader in Ecology at King's College London. He has written extensively on ecology and global environmental change and was, for 35 years, Ecology Correspondent for the journal Nature.