1. Graduate School of Humanities and Sciences, Ochanomizu University, Bunkyo-ku, Japan
2. Regional Environmental Planning Inc., Sapporo-shi, Japan
3. Graduate School of Science, Osaka Metropolitan University, Sakai, Japan
4. Institute of Natural and Environmental Sciences, University of Hyogo, Sanda, Japan
5. Faculty of Education, Niigata University, Niigata, Japan
6. Graduate School of Arts and Sciences, University of Tokyo, Meguro-ku, Japan