Training in plant ecology
Born in New York in 1911, Egler studied with Henry Cowles at Chicago and subsequently with William Skinner Cooper at Minnesota, completing his master’s thesis in 1934. He received his Yale doctorate in 1936 and went on to botanical research and teaching.
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Permanent plots and vegetation development
Beginning in 1945, Egler directed research at his family’s Aton Forest property in Norfolk, Connecticut, becoming full-time there in the late 1950s. He maintained experimental permanent plots and records of vegetation change. His 1954 paper identified initial floristic composition as a factor in old-field vegetation development.
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Vegetation in rights-of-way
Egler researched vegetation management along utility and other rights-of-way and advised power companies and landscape-management organisations. His work connected observations of plant communities and long-term change with practical questions about vegetation treatments.
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Contributing to Silent Spring
From 1960, Carson corresponded with Egler while preparing Silent Spring, seeking material on selective vegetation treatment as an alternative to blanket spraying. Early in 1962, he supplied detailed comments and references for “The Earth’s Green Mantle.” Their collaboration brought vegetation ecology into public discussion of pesticide use. Egler died in 1996.