Robert Treat Paine III was an American ecologist who spent most of his career at the University of Washington. Paine coined the keystone species concept to explain the relationship between Pisaster ochraceus, a species of starfish, and Mytilus californianus, a species of mussel.
- Occupation
- zoologist, ecologist, botanist
- Position held
- chairperson
- Citizenship
- United States
- Born
- April 13, 1933
- Died
- June 13, 2016
