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Phytogeographical study of the Tertiary warm elements between Japanese Islands and Taiwan

Research Project

Project/Area Number 16K05599
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

Yabe Atsushi  独立行政法人国立科学博物館, 地学研究部, 研究主幹 (20634124)

Co-Investigator(Kenkyū-buntansha) 藤木 利之  岡山理科大学, 理学部, 准教授 (10377997)
Research Collaborator Jeong Eun-Kyoung  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords古植物地理 / 琉球列島 / 台湾 / 古気候 / 古生態 / 植物地理 / 遺存固有 / 更新世 / 琉球弧 / 遺存固有性 / 古気候解析 / 前期更新世 / 第三紀要素 / 古環境 / 進化 / 層位・古生物
Outline of Final Research Achievements

Phytogeographical studies of two conifer genera, Cunninghamia and Taiwania, that are endemic to Taiwan have been conducted based on Pliocene-early Pleistocene fossils from the Ryukyu Archipelago and Kyushu Island. By using multiple plant organs, such as leaves, shoots, seeds, pollen grains, and woods, we successfully identified at least the former ones as extant species in Taiwan. Paleoclimate (especially temperature) analysis using either of floral composition and physiognomy suggested that they have inhabited in similar or cooler conditions than that of the extant species. Therefore, we succeeded to tested the hypothesis that such "warm elements" have distributed in Japan well before the Pliocene and have expanded their distribution to Taiwan across the land bridge like Ryukyu Archipelago during the cooling of climate conditions.

Academic Significance and Societal Importance of the Research Achievements

日本列島から見つかる台湾現生属の化石は、しばしば温暖要素と呼ばれ、温暖期に南から分布を広げた要素と捉えられることが多かったが、本研究によって、それらが従来とは全く逆の経路で分布を広げた可能性を指摘することができた。これら台湾現生属は現在、台湾や中国の一部の地域にのみ生育する種であり、生育地の保全が課題となっている。本研究により明らかとなった分布地の成立史や潜在的な生態的分布範囲は、それらの種の保全にも役立てられる可能性がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] Sungshin Women's University(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Sungshin Women's University(韓国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Oligocene-Neogene fossil history of Asian endemic conifer genera in Japan and Korea2019

    • Author(s)
      Yabe, A., E.-K. Jeong, K.-S. Kim, and K. Uemura
    • Journal Title

      Journal of Systematics and Evolution

      Volume: 57 Issue: 2 Pages: 114-128

    • DOI

      10.1111/jse.12445

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Revision of the early Pleistocene Minoshirotori flora in the plant fossil collection of the National Museum of Nature and Science, Tokyo2017

    • Author(s)
      Yabe, Atsushi
    • Journal Title

      Bulletin of the National Museum of Nature and Science, Series C

      Volume: 43 Pages: 65-89

    • NAID

      40021490869

    • Related Report
      2017 Research-status Report
  • [Presentation] 東アジア固有針葉樹類の地理的隔離はなぜ成立したか?2018

    • Author(s)
      矢部 淳・植村和彦・鄭恩境・金京植
    • Organizer
      日本古生物学会2018年年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] “鮮新世美濃白鳥植物群”の再検討-第四紀植生の立体構造と新第三紀要素の古生態解明に向けて-2018

    • Author(s)
      矢部 淳
    • Organizer
      日本古生物学会第167回例回(愛媛大学)
    • Related Report
      2017 Research-status Report
  • [Presentation] Pleistocene floral connection between Japan and Taiwan across the Ryukyu Islands?―Plant fossils from the Katanoyama site in Tanegashima Island2017

    • Author(s)
      Yabe, Atsushi, Fujiki, Toshiyuki, and Jeong, Eunkyoung
    • Organizer
      IX International Botanical Congress (Shenzheng, China)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 種子島の下部更新統増田層から産出する植物化石群集の再検討ー琉球列島を通じた植物交流史の解明を目指してー2017

    • Author(s)
      矢部 淳・藤木利之・Eunkyon Jeong
    • Organizer
      日本地質学会第124年学術大会(愛媛大学)
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-22  

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