- 2020/03 - 2021/01 University of Florida Department of Wildlife Ecology & Conservation Visiting Professor / Fulbright Scholar
- 2020/03 - 2021/01 University of Florida Department of Wildlife Ecology & Conservation Fulbright Scholar/Visiting Professor
- 2016/10 - Kyushu Institute of Technology Faculty of Engineering, Department of Civil and Architectural Engineering Professor
- 2016/10 - Kyushu Institute of Technology Department of Civil and Architectural Engineering,Faculty of Engineering Professor
- 2004/02 - 2016/09 Kyushu Institute of Technology Department of Civil and Architectural Engineering, Faculty of Engineering Associate Professor
- 2008 - 2016 Kyushu Institute of Technology Faculty of Engineering, Department of Civil and Architectural Engineering
- 2014 - TU-Berlin Stadt-Ökology Visiting Scholar
- 2014 - Institute Technology of Berlin Department of Ecology, Ecosystem Science/Plant Ecology, Germany Guest member of staff
- 2004/02 - 2008/03 Kyushu Institute of Technology Faculty of Engineering, Department of Civil and Architectural Engineering
- 1999/04 - 2004/01 Kyushu Institute of Technology Department of Civil and Architectural Engineering,Faculty of Engineering Lecturer
- 1999/04 - 2004/01 Kyushu Institute of Technology Faculty of Engineering, Department of Civil and Architectural Engineering
- 2001 - 英国ニューカッスル大学客員研究員 ランドスケープ学科 客員研究員
- 2001 - University of Newcastle, Newcastle upon Tyne School of Architecture, Planning and Landscape, U.K. Guest member of staff
- 1996 - 1999 株式会社プレック研究所環境計画部 研究員
- 1996 - 1999 PREC Institute Inc. Div. Environmental Planning Researcher
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SURE ( The Society for Urban Ecology)
, URBIO (Urban Biodiversity and Design)
, IALE ( International Association for Landscape Ecology)
, JAPANESE INSTITUTE OF LANDSCAPE ARCHITECTURE
, JAPAN ASSOCIATION FOR LANDSCAPE ECOLOGY
, 日本森林学会