| Year | Position | Institution |
| 1986 | University Of Hamburg 4 | |
| 1993 | Harvard University 4 | |
| 2008 | Max Planck Institute For Marine Microbiology 4 | |
| 2011 | Max Planck Institute For Marine Microbiology 4 | |
| 2016 | Max Planck Institute For Marine Microbiology |
| Year | Role | Course |
| 1986 | Student | Marine Ecology 1986 |
| 1993 | Student | Workshop On Molecular Evolution 1993 |
| 2008 | Lecturer | Microbial Diversity 2008 |
| 2011 | Lecturer | Microbial Diversity 2011 |
| 2016 | Lecturer | Microbial Diversity 2016 |
| Year | Location |
| 1986 | frg |