Rodolfo Dirzo is the Bing Professor in Environmental Science, a Senior Fellow, by courtesy, at the Stanford Woods Institute for the Environment, and Director of Center for Latin American Studies. He specializes in tropical ecology. In particular, he studies biotic interactions from ecological and evolutionary perspectives. Recently, he has been focusing his work on the consequences of anthropogenic impact (deforestation, fragmentation, defaunation) on tropical ecosystems, in terms of the disruption of ecological processes and ecosystem services. He is also interested in teaching and education on the relevance of biological conservation. Dirzo holds a B.Sc. in Biology from the University of Morelos, Mexico; he earned his M.Sc and Ph.D. in Ecology from the University of Wales in the United Kingdom.