Trained as both a mathematician and an ecologist, Dr. Kiester earned his Ph.D. from Harvard University. He began his career in ecological modeling before shifting his focus to turtle conservation in the 1980s. His interdisciplinary work has contributed significantly to species distribution modeling, conservation planning, and the development of global priority-setting tools for chelonian protection. He also served as a senior scientist at the U.S. Environmental Protection Agency, where he helped integrate ecological science into environmental policy.