著者

田辺 千景

出版者

ストラータ同人会

雑誌

Strata

巻号頁・発行日

vol.11, pp.67-78, 1996-07-01

著者

Kurihara Takeo Shikatani Mayu Nakayama Kouji Nishida Mutsumi

出版者

Zoological Society of Japan

雑誌

Zoological Science (ISSN:02890003)

巻号頁・発行日

vol.23, no.11, pp.999-1008, 2006-11

被引用文献数

11

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In many benthic organisms with a planktonic larval stage, local populations have different morphology. Such difference may arise from some of the following proximate mechanisms. “Local recruitment (LR)”: no larvae move between local populations, and segregated populations possess alleles coding for locally adaptive morphology. “Intragenerational selection (IS)”: larvae move between local populations, and individuals with alleles for locally adaptive morphology survive after recruitment. “Phenotypic plasticity (PP)”: larvae move between local populations and show phenotypic plasticity to adapt to a locality after recruitment. We examined which mechanism explains our finding that a planktonic developer Turbo coronatus coronatus (Gastropoda) had significantly longer spines on its shell on more exposed shores at scales of < 2 km. Experiments at Ishigaki Island, Okinawa, Japan, showed the following results. (a) Shorter- and longer-spined populations occurring within 2 km showed non-significant ϕ low st values (−0.0040 to 0.00095) for the mitochondrial DNA COI region. This suggests no segregation of the local populations, supporting the mechanisms IS and PP. (b) T. c. coronatus generated significantly longer spines 70 days after being transplanted to the habitat of a longer-spined population, supporting IS and PP. (c) Individuals caged in the sea for 79 days generated longer spines than individuals in the laboratory, supporting PP. In conclusion, shore-specific morphology of T. c. coronatus arises most likely from phenotypic plasticity and possibly from intragenerational selection.

著者

ICHIKAWA Mitsuo

出版者

The Research Committee for African Area Studies, Kyoto University

雑誌

African Study Monographs (ISSN:02851601)

巻号頁・発行日

vol.1, pp.55-68, 1981

著者

武田 真樹

巻号頁・発行日

2005-03

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報告番号: ; 学位授与年月日: 2005-03- ; 学位の種別: 修士 ; 学位の種類: 修士() ; 学位記番号: ; 研究科・専攻: 新領域創成科学研究科環境学専攻

著者

松村 一男

出版者

東京大学文学部宗教学研究室

雑誌

東京大学宗教学年報 (ISSN:2896400)

巻号頁・発行日

vol.5, pp.102-116, 1988-01-08

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【研究ノート】

著者

松村 一男

出版者

東京大学文学部宗教学研究室

雑誌

東京大学宗教学年報 (ISSN:2896400)

巻号頁・発行日

vol.4, pp.88-94, 1987-01-20

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【研究ノート】

著者

中島 和歌子

出版者

東京大学文学部宗教学研究室

雑誌

東京大学宗教学年報 (ISSN:02896400)

巻号頁・発行日

vol.27, pp.151-170, 2010-03-31

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論文/Articles

著者

打越 正行 Masayuki Uchikoshi

雑誌

社会学批評 : KG/GP sociological review

巻号頁・発行日

no.2, pp.47-49, 2010-01-30

著者

石原 次郎

出版者

北海道大学文学研究科= The Faculty of Letters, Hokkaido University

雑誌

北海道大学文学研究科紀要 (ISSN:13460277)

巻号頁・発行日

vol.102, pp.15-59, 2000-12-20

著者

中島 暢太郎 後町 幸雄

出版者

京都大学防災研究所

雑誌

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B (ISSN:0386412X)

巻号頁・発行日

vol.11, no.B, pp.35-45, 1968-03-01

著者

三浦 伸夫

出版者

京都大学数理解析研究所

雑誌

数理解析研究所講究録 (ISSN:18802818)

巻号頁・発行日

vol.1257, pp.37-47, 2002-04

著者

三浦 伸夫

出版者

京都大学数理解析研究所

雑誌

数理解析研究所講究録 (ISSN:18802818)

巻号頁・発行日

vol.1513, pp.1-13, 2006-08

著者

三浦 伸夫

出版者

京都大学数理解析研究所

雑誌

数理解析研究所講究録 (ISSN:18802818)

巻号頁・発行日

vol.1787, pp.201-211, 2012-04

著者

大杉 千恵子 Osugi Chieko

出版者

Graduate School of International Development. Nagoya University

雑誌

Forum of International Development Studies (ISSN:13413732)

巻号頁・発行日

vol.23, pp.177-200, 2003-03 (Released:2006-03-28)

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JOCV(Japan Overseas Cooperation Volunteers)are Japanese skilled young people who work abroad for assisting the people of the recipient countries. Dispatching the JOCV is one of the responsibilities of JICA(Japan International Cooperation Agency)that is the main organization implementing Japan’s ODA(Official Development Assistance). The recent growth and development of Japanese language education in Hungary have been remarkable. At this time it is worthwhile to examine the history of Japanese language education in Hungary and consider its present situation. In my observation, the historical development of the Japanese language education can be divided into three phases : I. Introduction, II. Early development, and III. Maturity. The period of introduction is from the 1920s to the late 1980s that is slightly before the termination of the Soviet influence. Interests in‘exotic’Japan was one of th e critical triggers for Japanese language learning in this period. During this time some of the people who later developed Japanese language education in Hungary appeared on the scene. After the compulsory study of Russian ended, Japanese language became popular among other foreign languages. During this period of early development(late 1980s-2000), many JOCV Japanese teachers came and the number of Japanese learners increased a great deal. Not only the numbers, but also the area of Japanese language education expanded to local cities. Japan’s ODA played a very important role in this large growth. Since the year 2001, the Japanese language education in Hungary entered a new mature phase. The establishment of the Hungarian Association of Japanese Teachers symbolizes the beginning of this new era. The number of Japanese language learners seems to have stabilized, and the Association is working on improvement of education quality. The JOCV Japanese teachers played an epoch-making role to develop the foundation of the Japanese education in Hungary. Hopefully the Japanese language education will contribute to multilingualism that is the key to harmonious co-existence of peoples.

著者

吉国 浩哉

出版者

ストラータ同人会

雑誌

Strata

巻号頁・発行日

vol.16, pp.28-49, 2002-12-20

著者

後藤 光男

出版者

早稲田大学社会科学部学会

雑誌

早稲田社會科學研究 = The Waseda journal of social science (ISSN:02861283)

巻号頁・発行日

vol.59, pp.69-87, 1999-10

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論文

著者

石川 准

巻号頁・発行日

1995-03-03

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報告番号: 乙12159 ; 学位授与年月日: 1995-03-03 ; 学位の種別: 論文博士 ; 学位の種類: 博士(社会学) ; 学位記番号: 第12159号 ; 研究科・専攻: 社会学研究科

著者

川端 亮 カワバタ アキラ Kawabata Akira

出版者

大阪大学人間科学部

雑誌

大阪大学人間科学部紀要 (ISSN:03874427)

巻号頁・発行日

vol.17, pp.147-166, 1991-03

著者

徳丸 亞木

出版者

筑波大学大学院人文社会科学研究科歴史・人類学専攻

雑誌

歴史人類 (ISSN:03854795)

巻号頁・発行日

no.40, pp.(27)-(72), 2012-03

著者

成富 正信

出版者

早稲田大学社会科学部学会

雑誌

早稲田社會科學研究 = The Waseda journal of social science (ISSN:02861283)

巻号頁・発行日

vol.37, pp.301-321, 1988-10

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論文