David Lentz is Vice President, Director of the Regenstein School and Senior Scientist at the Chicago Botanic Garden. He holds adjunct faculty positions at Northwestern University, the University of Illinois at Chicago and Loyola University. Since his arrival in the Chicago area in 2002, he has served on the Science Advisory Committee of the Lake Forest Open Lands Association (2004-2006), the Chicago Wilderness Executive Council (2002-2005), the Biosphere Reserve Committee (2004) and as co-Chair of the CW Science Team (2002-2004). Before his move to Chicago, he was the Director of Graduate Studies at the New York Botanical Garden. During his sojourn in New York, he held faculty positions at Columbia University, Yale University, NYU and City University of New York. He has authored more than 70 peer-reviewed articles and previously edited a book titled, Imperfect Balance: Landscape Transformations in the Precolumbian Americas, published by Columbia University Press in 2000. In 2005, a second book, Seeds of Central America and Southern Mexico, was released by New York Botanical Garden Press. He has been awarded several research fellowships and in 1996 he was elected Fellow of the Linnean Society of London. Currently he serves as President of the Society for Economic Botany. His interests focus on human impacts on the landscape, paleoethnobotany and conservation of economic plants.