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Greg Frey served as a U.S. Peace Corps volunteer in Paraguay from 2001-2004. He completed a PhD in the Department of Forestry and Environmental Resources, focusing on agroforestry as a tool for sustainable production of agricultural and forest products. He has spent significant time observing silvopasture systems (combinations of native or plantation forests with livestock) and their practitioners in northern Argentina. Greg has been investigating the social and economic impacts of this system, and in particular is interested in the similarities and differences in adoption motives and system implementation between farmers of different scales.  Greg is currently an extension specialist with Virginia State University.