| Year | Position | Institution |
| 1976 | Cornell University And Ecosystems Center 4 | |
| 1977 | Cornell University And Ecosystems Center 4 | |
| 1978 | Cornell University And Ecosystems Center 4 |
| Year | Role | Course |
| 1976 | Special Lecturer | Ecology 1976 |
| 1977 | Special Lecturer | Ecology 1977 |
| 1978 | Special Lecturer | Ecology 1978 |
| 1980 | Staff | The Ecosystems Center 1980 |