19-23 March, 2007    Annual meeting of Ecological Society of Japan (Matsuyama)
15 Jun.-7 Aug., 2006  Field work (Hungary)

25-29 March, 2006    Annual meeting of Japanese Society of Applied Entomology and Zoology (Tsukuba)
30 Jan.-1 Feb., 2006  Lecture at Hokkaido Univ. (Hakodate)
6-17 December, 2005 Field work (Thailand)
28-30 Oct, 2005        Symposium of Society of Population Ecology (Kaga)
26-29 August, 2005   Annual meeting of Japanese Society of Evolutionary Biology (Sendai)
8-10 August, 2005     Research visit (Tsukuba & Tokyo)
7 June-29 July, 2005 Field work (Hungary)
27-30 March, 2005    Annual meeting of Ecological Society of Japan (Osaka)
24-26 March, 2005    Annual meeting of Japanese Society of Applied Entomology and Zoology (Tokyo)
12-21 Dec, 2004       Field work (Thailand)
30 Oct-8 Nov, 2004   Field work (China)
13 June-28 July, 2004             Field work (Hungary)
8-13 June, 2004       National Natural History Museum (Paris)

13-23 December, 2003             Field work (Thailand)
14-15 November, 2003             Seminar (Kyoto)
2-7 November, 2003  Field work (Taiwan)
24-28 October, 2003  Field work (Kunming)
25-27 September, 2003             Field work (Aso)
4-25 July, 2003        Field work (Hungary)

20-26 March, 2003    Annual meeting of Ecological Society of Japan (Tsukuba)
8 Feb.-16 Feb., 2003  Research visit (Hawaii)
6 Jan.-1 Feb., 2003    Research visit (Leiden, Silwood Park)
5-23 December, 2002 Research visit (New York, Boston)
21-28 November, 2002             Field work (Thailand)
8-11 November, 2002 Field work (Taiwan)
1-4 November, 2002  Field work (Utsunomiya)
21-23 October, 2002  International symposium on chaos and nonlinear time-series (Fukuoka)
11-17 August, 2002   INTECOL (Seoul)
30 March, 2002         Annual meeting of Japanese Society of Applied Entomology and Zoology (Tokyo)
26-29 March, 2002    Annual meeting of Ecological Society of Japan (Sendai)