Marc Cadotte is a Professor in the Departments of Biological Sciences, Ecology and Evolutionary Biology at the University of Toronto, Canada. Marc’s current research priorities include: 1) Causes of biodiversity. Examining the mechanisms that influence the diversity of species in habitats and how human activities and species invasions alter biodiversity patterns. 2) Consequences of biodiversity. Evaluating the ways in which changes in biodiversity influence the functioning of ecosystems in natural and urban landscapes. 3) Preserving biodiversity. Examining how to conserve and manage natural and urban ecosystems to maximize biodiversity and the ecosystem services that all people benefit from.