MacArthur, Robert Helmer

MacArthur, Robert Helmer

(1930–72) ecologist; born in Toronto, Canada. He moved to the U.S.A. at age 17, studied mathematics and zoology, and earned a Ph.D. in the latter field from Yale. From 1965 he was a professor of biology at Princeton. Building on an early interest in birds, he developed influential theories about natural selections in animal populations.
The Cambridge Dictionary of American Biography, by John S. Bowman. Copyright © Cambridge University Press 1995. Reproduced with permission.