Marcelo Rheingantz is a biologist at the Institute of Biology, Federal University of Rio de Janeiro and Executive Director of Refauna. He has dedicated his research career to the ecology and conservation of vertebrate populations in Brazil and South America. Marcelo is focused on understanding how animals interact with the surrounding environment, how human activities affect them, and how to restore impacted environments with conservation translocation. Rheingantz studies population ecology, conservation of vertebrates and wildlife management techniques such as reintroduction and translocation planning. His research looks to define conservation strategies in order to mitigate threats and maintain global biodiversity. He is also a member of the IUCN (International Union for Conservation of Nature) Conservation Translocation and Otter Specialist Groups. He coordinates the Brazilian Task Force on Conservation Translocations.