Year | Role | Course |
1978 | Research Assistant | The Ecosystems Center 1978 |
1979 | Staff | The Ecosystems Center 1979 |
1980 | Staff | The Ecosystems Center 1980 |
1981 | Staff | The Ecosystems Center 1981 |
1982 | Staff | The Ecosystems Center 1982 |
1983 | Staff | The Ecosystems Center 1983 |