Jack M. Broughton is professor of anthropology at the University of Utah. His publications include Prehistoric Human Impacts on California Birds: Evidence from the Emeryville Shellmound Avifauna and Resource Depression and Intensification during the Late Holocene, San Francisco Bay: Evidence from the Emeryville Shellmound Vertebrate Fauna
Michael D. Cannon is a principal investigator with SWCA Environmental Consultants in Salt Lake City, and an adjunct assistant professor in the University of Utah Department of Anthropology. His research focuses on past environments and the ecology of prehistoric human subsistence in North America, particularly in the Great Basin and the Southwest.