Dr. Asa received her MS and PhD from the University of Wisconsin–Madison in endocrinology and reproductive physiology.

Erik A. Beever is a research ecologist with the U.S. Geological Survey, Northern Rocky Mountain Science Center. His specializations are disturbance ecology, mechanisms of biotic responses to climate change, and monitoring in conservation reserves—all at community to landscape scales. His greatest research experience is with mammals, but he has also studied plants, soils, reptiles, amphibians, ants, birds, and fishes. Dr. Beever worked with the U.S. National Park Service as a quantitative ecologist. He is currently a member of the American Society of Mammalogists, the Society for Conservation Biology, and the Wildlife Society in which he is a past chair of the Biological Diversity Working Group. Dr. Beever received his PhD from the Department of Ecology, Evolution, and Conservation Biology at University of Nevada, Reno, specializing in grazing ecology of free-ranging horses and in patterns of persistence of mountain-dwelling mammals. In his postdoctoral research, he studied grazing ecology of free-ranging burros, horses, and livestock in various contexts across the western United States.

Michael B. Coughenour is senior research scientist at the Natural Resource Ecology Laboratory at Colorado State University. He was a joint principal investigator on the South Turkana Ecosystem Project, investigating a native pastoral ecosystem in northern Kenya. He has carried out several major modeling and field studies of grazing ecosystems and assessments of ungulate carrying capacities in Yellowstone National Park, Rocky Mountain National Park, and the Pryor Mountain Wild Horse Range. He has developed three ecosystem models that have enjoyed wide success: GRASS-CSOM, GEMTM, and SAVANNA. He has been involved in research on pastoral and grazing ecosystems in Tanzania, Kenya, South Africa, Australia, Inner Mongolia, Kazakhstan, Venezuela, and Canada and has consulted on grazing ecosystem ecology in many other locations around the world. He has carried out ecosystem modeling studies of grassland responses to atmospheric change and has worked with atmospheric scientists to develop one of the first linked ecosystem-atmosphere models (RAMS-GEMTM). Dr. Coughenour received his PhD from Colorado State University, specializing in systems ecology and nutrient cycling in southern Montana grasslands. He later studied the Serengeti grazing ecosystem of Tanzania, using simulation modeling and experimental studies to determine how the ecosystem supports the world’s largest ungulate herds.

Lori S. Eggert is an associate professor in the Division of Biological Sciences of the University of Missouri–Columbia. Research in her laboratory uses the tools of molecular genetics to study wildlife species that are difficult or dangerous to study with traditional methods. By combining intensive field studies with individual-based genetic analyses, she asks questions about the ecology and evolution of species that would be almost impossible to study in any other way. Current projects include field and laboratory studies aimed at refining the methods that Dr. Eggert uses for “genetic censusing” of elusive species in the forests of Africa and Asia. Using DNA extracted from elephant dung samples, she has applied multilocus genotypes as genetic tags for estimating population sizes and sex-specific markers to estimate sex ratios. Previously, Dr. Eggert had been a research and postdoctoral associate at the Smithsonian Institution National Museum of Natural History in Washington, DC. She received her MS in ecology from San Diego State University and her PhD in biology from the University of California, San Diego.



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