Nelson Hairston

Nelson Hairston Sr. (16 October 1917 – 31 July 2008) was an American ecologist. Hairston is well known for his work in ecology and human disease. In the field of ecology he is famous for championing the idea of the trophic cascade, on which he published the provocative “Green World Hypothesis” with colleagues Frederick E. Smith and Lawrence B. Slobodkin. Nelson was also deeply interested in the factors that control human disease and was an adviser to the World Health Organization for many years.

Nelson was born on October 16, 1917 in the Cooleemee area of Davie County, North Carolina. He was the second of two boys to Margaret George Hairston (1884-1963) and Peter Hairston (1841-1975). The Hairstons owned plantations all around Henry County, Virginia, Pittsylvania County, Virginia, Franklin County, Virginia, North Carolina, and Lowndes County, Mississippi. He was born on the Cooleemee Plantation, which was built by his grandfather, Peter Wilson Hairston (1819-1886).

Nelson was interested in ecology from an early age. He graduated from the department of Zoology at the University of North Carolina with both a BS and MS. Hairston continued his studies at Northwestern University under the supervision of Dr. Orlando Park. His PhD was interrupted by World War II, where he served his country by helping treat and prevent the transmission of malaria in the South Pacific. After the war, Nelson returned to his PhD, which was on the distribution of salamanders in Appalachia. These early experiences with studying the ecology of salamanders and the treatment of disease began his lifelong interest in the ecology and prevention of disease.

Hairston spent most of his career (27 years) as a professor of Zoology at the University of Michigan and director of their Museum of Zoology. During this time Nelson helped to make the University of Michigan one of the United States preeminent graduate programs in ecology. Afterwards he spent 12 years as a professor at the University of North Carolina as a Kenan Professor of Biology, where he advised students including evolutionary biologist Richard Lenski. Throughout Hairston’s career, he focused most of his work on the role trophic interactions, such as the trophic cascade, has on determining the species composition of communities of co-existing organisms.

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