Theo Witsell, M.S., Co-Founder and Chief Conservation Officer
Theo Witsell is co-founder and Chief Conservation Officer for the Southeastern Grasslands Institute (SGI), where he oversees science and conservation programs. Prior to his role at SGI, he worked for more than 25 years for the Arkansas Natural Heritage Commission (ANHC), the agency that houses that state’s Natural Heritage Program and System of Natural Areas. He had several roles in his time there, serving as a land manager before becoming the agency's botanist, ecologist, and Chief of Research before leaving for SGI in early 2024. He has also worked as a consultant for a wide variety of federal and state conservation agencies and NGOs across eastern North America. A botanist at heart, Theo was co-editor of the Atlas of the Vascular Plants of Arkansas (2013), co-author of Trees, Shrubs, and Woody Vines of Arkansas (2021), and recently completed a book about his field work following the route of naturalist Thomas Nuttall’s 1819-1820 trip through what is now Arkansas and Oklahoma. He has authored or co-authored more than 40 scientific papers and book chapters and is a regional reviewer for the Flora of North America Project.