| Year | Position | Institution |
| 1979 | Marine Biological Laboratory 8 | |
| 1980 | Marine Biological Laboratory 8 | |
| 1981 | Marine Biological Laboratory 4 | |
| 1982 | Marine Biological Laboratory | |
| 1983 | Marine Biological Laboratory 5 | |
| 1984 | Marine Biological Laboratory 5 | |
| 1985 | Marine Biological Laboratory 4 | |
| 1985 | Cornell University | |
| 1986 | Cornell University | |
| 1987 | Cornell University | |
| 1988 | Cornell University | |
| 2016 | Cornell University |
| Year | Role | Course |
| 1975 | Student | Biosphere 1975 |
| 1979 | Faculty/Staff/Lecturer | Ecology 1979 |
| 1979 | Faculty/Staff/Lecturer | Marine Ecology 1979 |
| 1979 | Staff | The Ecosystems Center 1979 |
| 1980 | Faculty/Staff/Lecturer | Microbial Ecology 1980 |
| 1980 | Faculty/Staff/Lecturer | Ecology 1980 |
| 1980 | Staff | The Ecosystems Center 1980 |
| 1981 | Instructor-In-Chief | Basic Ecology And Management Of Resources 1981 |
| 1981 | Staff | The Ecosystems Center 1981 |
| 1982 | Staff | The Ecosystems Center 1982 |
| 1983 | Faculty/Staff/Lecturer | Marine Ecology 1983 |
| 1983 | Staff | The Ecosystems Center 1983 |
| 1984 | Faculty/Staff/Lecturer | Marine Ecology 1984 |
| 1985 | Faculty/Staff/Lecturer | Marine Ecology 1985 |
| Year | Subject | Role |
| 2016 | Whitman Scientist |
| Year | Start Date | End Date | Subject | Role |
| 1982 | - | - | Corporation Member | |
| 1983 | - | - | Corporation Member | |
| 1984 | - | - | Corporation Member | |
| 1985 | - | - | Corporation Member | |
| 1986 | - | - | Corporation Member | |
| 1987 | - | - | Corporation Member | |
| 1988 | - | - | Corporation Member |