About the Author

Darrell Posey is a Research Professor at the Federal University of Maranhao, Sao Luis, Brazil. He is also a Fellow of Linacre College and Director of the Programme for Traditional Resource Rights at Mansfield College. Dr Posey is Past President of the International Society for Ethnobiology and a Fellow of the Linnean Society of London. He is a recipient of the international Sierra Club's "Chico Mendes Award" and the UNEP Global 500 Roll of Honour Award.