Bachelor, Austin College, Sherman, Texas, 1975. Master of Science in Environmental Sciences, University Texas, Dallas, 1978. Doctor of Philosophy in Environmental Sciences, University Virginia, 1997.
Demographer North Center Texas Council Governments, Arlington, Texas, 1975-1976. Research assistant University Texas, Dallas, 1976-1978. Research technician Savannah River Ecology Laboratory, Aiken, South Carolina, 1978-1979.
Regional ecologist Oak Ridge National Laboratory, Tennessee, 1979-1983. Environmental consultant Esserlieu Associates, Palo Alto, California, 1983-1984. Senior associate Environmental Science Associates, San Francisco, 1984.
Database manager, technical writer Pacific Gas & Electric Company, 1984-1988. Environmental research associate Lawrence Berkeley Laboratory, 1988-1989. Research assistant department environmental science University Virginia, Charlottesville, 1989-1995.
Systems ecologist United States Forest Svc./MACA, 1995-1997. Senior environmental scientist South Florida Water Management District, since 1998. Consultant Citizens Committee to Complete the Refuge, Palo Alto, California, 1985-1987, co-chairman, 1985-1989.
Representative Wetlands Advisory Task Force, San Francisco Bay Estuary Project, 1988-1989.
Founder, president Citizens for Open Space in Alvarado, Union City, California, 1986-1989. Board directors, Second vice president Santa Clara Valley Audubon Society, Palo Alto, 1986-1989. Member Society of Wetlands Scientists.
Children: Brian Daniel Esserlieu, Sarah Lindsey Esserlieu.