Ernest H. Williams, Jr.
Professor of Biology Emeritus (retired)
Through fieldwork in New York, Wyoming and Mexico, and in collaboration with Hamilton students, Ernest H. Williams, Jr. studies the population biology, chemical ecology and conservation of butterflies. Often quoted in national media outlets, most recently on the topic of monarch population decline, he is author of The Nature Handbook: A Guide to Observing the Great Outdoors (2005) and co-author of The Stokes Butterfly Book (1991). His articles have appeared in the Journal of Insect Conservation, the Journal of the Lepidopterists’ Society, the Journal of Animal Ecology, Restoration Ecology, The Journal of Biogeography and American Butterflies. Williams, who serves on the board of the Monarch Butterfly Fund, is involved with habitat restoration and management in the Rome Sand Plains of Central New York. He earned his undergraduate degree from Trinity College in Connecticut and his master’s degree and doctorate from Princeton University.
Ph.D., Princeton University
M.A., Princeton University
B.S., Trinity College