| 2008~Present | Associate Professor, Center for Ecological Research, Kyoto University |
| 2001-2008 | Associate Professor, Research Institute for Humanity and Nature |
| 2001-2001 | Associate Professor, Center for Ecological Research, Kyoto University |
| 1999-2001 | Research Associate, Kyoto University |
| 1997-1999 | Postdoctoral Fellow, Laboratoire d’Ecologie, Ecole Normale Superieure and Universite Pierre et Marie Curie, CNRS-URA 258, Paris, France |
| 1993-1997 | Lecturer (part time), Doshisha University |
| 1992-1997 | Lecturer (part time), Osaka Institute of Technology |