| Year | Position | Institution |
| 1990 | Harvard University 4 | |
| 1991 | Harvard University 4 | |
| 1992 | University Of Arizona 4 | |
| 1993 | University Of Arizona 4 | |
| 1994 | University Of Arizona 4 | |
| 1995 | University Of Arizona 4 | |
| 1996 | University Of Arizona 4 | |
| 1997 | University Of Arizona 4 | |
| 1998 | University Of Arizona 4 | |
| 1999 | University Of Arizona 4 |
| Year | Role | Course |
| 1990 | Faculty | Molecular Evolution 1990 |
| 1991 | Faculty | Molecular Evolution 1991 |
| 1992 | Faculty | Molecular Evolution 1992 |
| 1993 | Faculty | Workshop On Molecular Evolution 1993 |
| 1994 | Faculty | Workshop On Molecular Evolution 1994 |
| 1995 | Faculty | Workshop On Molecular Evolution 1995 |
| 1996 | Faculty | Workshop On Molecular Evolution 1996 |
| 1997 | Faculty | Workshop On Molecular Evolution 1997 |
| 1998 | Faculty | Workshop On Molecular Evolution 1998 |
| 1999 | Faculty | Workshop On Molecular Evolution 1999 |