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An article about monarch butterflies by Ernest Williams, the William R. Kenan Professor of Biology Emeritus, was recently published in the Adirondack Almanack (Saranac Lake, N.Y.).

In an article published recently in the Adirondack Almanack (Saranac Lake, N.Y.), Ernest Williams, the William R. Kenan Professor of Biology Emeritus, said that although the Northeast saw more monarch butterflies in 2019, the monarch population overall continues to decline.

At the invitation of the Rochester, N.Y., office of The Nature Conservancy, Ernest Williams recently presented “What's Happening to Monarchs?” at the Jewish Community Center in Brighton, N.Y.

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.

“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 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, discussed threats to the monarch butterfly population in lectures in Ithaca, Fayetteville and Canastota, N.Y.

The New York Times published a letter to the editor written by Ernest Williams, the William R. Kenan Professor of Biology Emeritus, titled Challenges Facing the Monarch Butterfly on March 7. In response to a Feb. 28 article titled Monarch Butterfly Migration Rebounds Easing Some Fears, Williams pointed out that, “...this year’s measurement remains less than a quarter of what it was 20 years ago.”