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“The Butterflies (Lepidoptera) of an Isolated Island: Monhegan, Maine, by Ernest Williams, the William R. Kenan Professor of Biology Emeritus, was recently published online in Northeastern Naturalist.

A story published by the Florida Museum of Natural History about a 37-year survey of monarch populations in North Central Florida shows that caterpillars and butterflies have been declining since 1985 and have dropped by 80 percent since 2005.

“A long-term survey of spring monarch butterflies in north-central Florida,” co-authored by Ernest Williams, appears in the current issue of the Journal of Natural History.

An article titled “Rome Sand Plains: Restoring a Special Place in Central New York” by Ernest Williams, the William R. Kenan Professor of Biology Emeritus and Lecturer in Biology, appears in the August issue of Conservationist.

“Mexico’s logging threatens butterflies,” co-authored by William R. Kenan Professor of Biology Emeritus Ernest Williams, was published as the lead letter in the Nov. 24th issue of the journal Science.

An article about monarch butterfly mortality and salvage logging in Mexico, co-authored by Ernest Williams, the William R. Kenan Professor of Biology Emeritus and lecturer in biology, appears in the fall issue of American Entomologist.

An article co-authored by Ernest Williams, the William R. Kenan Professor of Biology Emeritus and lecturer in biology, was recently published in the International Journal of Biometeorology.

Hamilton’s proximity to the Adirondacks enabled Professor Ernest Williams to hold an on-site lesson for students in Environmental Studies 220, Forever Wild: The Cultural and Natural Histories of the Adirondack Park on Feb. 4.

An article titled “Monarch Butterflies Use Regenerating Milkweeds for Reproduction in Mowed Hayfields in Northern Virginia,” co-authored by Ernest Williams, the William R. Kenan Professor of Biology emeritus and lecturer in biology, was recently published in the Journal of the Lepidopterists’ Society.

Ernest Williams, the William R. Kenan Professor of Biology emeritus and lecturer in biology, co-authored a letter that will be presented to the leaders of the United States, Canada and Mexico when they meet for the North American Leaders’ Summit in Ottawa on June 29.