Renowned monarch butterfly expert Lincoln P. Brower will speak on "The Grand Saga of Monarch Butterfly Migration: An Endangered Biological Phenomenon" at the annual Grace C. Griswold Distinguished Lecture, Monday, April 5, at 7:30 p.m. in Room B-45 Warren Hall on the Cornell University campus.

Brower is best known for his seminal work on monarchs' migratory behavior, chemical ecology and mimicry systems. He was one of the first scientists to locate the small, isolated monarch overwintering grounds in Mexico and subsequently determined the migration and breeding patterns of the butterflies. Brower is the author or co-author of more than 80 juried articles, 22 book chapters, numerous reviews, popular science articles and extensive movies about monarch butterflies. Brower established the importance of Mexican fir forests in providing winter protection for the butterflies. He has served as a consultant to the Wildlife Conservation Society of New York, the World Wildlife Fund, and several state and national environmental councils on conservation issues. Recently, he retired as a distinguished service professor from the University of Florida at Gainesville and joined the faculty at Sweet Briar College, Sweet Briar, Va.

In addition to the Griswold Entomology Fund, the lecture is sponsored by the Cornell Center for the Environment, the Behrman Biology Advising Center and the Hughes Undergraduate Research Program at Cornell.

Prior to the evening lecture, Brower will give an afternoon research lecture, "Chemical Ecology of the Monarch Butterfly: 1877-1999," at 4 p.m. in the Morrison Room (Room A-106), Corson-Mudd Hall. This lecture is open to the Cornell community.