Bachelor of Science in Forest Science cum laude, U. Georgia, 1976; Master of Science in Forest management, U. Washington, 1978; Doctor of Philosophy in Mathematics Ecology, Colorado State University, 1982.
Research associate, Colorado State University, Fort Collins, 1978-1982; scientific programmer, Statistical Package for the Social Sciences, Inc., Northfield, Minnesota, 1982-1984; postdoctoral fellow, U. Georgia, Athens, 1984-1987; research ecologist, Westinghouse Savannah River Laboratory, Aiken, South Carolina., 1987-1991; scientist, Argonne (Illinois) National Laboratory, since 1991. Consultant Office of Environment Baha'i International Community, New York City, since 1990.
Member Ecological Society American, International Society Ecological Modeling, International Society for Systems Sciences, Xi Sigma Pi.
Married Neda Samadani, July 5, 1980. Children: Sholeh, Gloria, Niki.