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Small islands in the marginal waters of the Indochina Peninsula create endemic mammalian species?

Research Project

Project/Area Number 20H01979
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 17030:Human geosciences-related
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

Oshida Tatsuo  帯広畜産大学, 畜産学部, 教授 (50374765)

Co-Investigator(Kenkyū-buntansha) 遠藤 秀紀  東京大学, 総合研究博物館, 教授 (30249908)
本川 雅治  京都大学, 総合博物館, 教授 (30293939)
川田 伸一郎  独立行政法人国立科学博物館, 動物研究部, 研究主幹 (30415608)
福井 大  東京大学, 大学院農学生命科学研究科(農学部), 講師 (60706670)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2022: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords生物地理学 / 系統地理学 / 小型哺乳類 / リス科齧歯類 / 島嶼個体群 / インドシナ半島 / 島嶼固有種
Outline of Research at the Start

令和2年度においては,ベトナムの島嶼域において小型哺乳類の採集を行い,これらのサンプルを用いて形態学的および遺伝学的解析を実施する。令和3年度においては,ベトナムに加えてミャンマーの島嶼域において小型哺乳類の採集を行い,これらのサンプルを用いて形態学的および遺伝学的解析を実施する。令和4年度においても前年度と同様の調査を実施し,これに加えて研究結果の総括を行い,インドシナ半島周縁島嶼域の固有種創出モデルの構築を試みる。

Outline of Final Research Achievements

From biogeographical viewpoint, we conducted a survey on the distribution and diversity of small mammals occurring on small islands in the eastern and southern coastal areas of Indochina Peninsula. We described a new subspecies of Finlayson’s squirrel from Hon Nghe Island in the Gulf of Thailand, located off the coast of
southern Vietnam. We also reported a population of Finlayson’s squirrel with unique pelage color on Lao Island of the Cham Islands, located off the coast of central Vietnam. In addition, we succeeded in collecting basic information on the small mammalian fauna on several small islands in Vietnam. Our results indicate that the small islands located off the coast of the Indochina Peninsula could produce endemic populations of small mammals.

Academic Significance and Societal Importance of the Research Achievements

インドシナ半島周縁に多数存在する小島嶼は,最終氷期においてスンダ大陸の一部に含まれ半島部と地続きであった。哺乳類の個体群に対する地理的隔離効果が低いことが予想される島嶼域において,固有亜種および固有形質を有する個体群が発見されたことから,これら小島嶼域が哺乳類の多様性を創出する重要な場であることが明らかになった(哺乳類の固有性が示されたことから,他の生物種にも固有な島嶼個体群の存在が期待される)。世界的に生物多様性の保全の重要性が叫ばれている中,保全に取り組むべき場所の抽出は重要な課題であるが,本研究の結果からインドシナ半島周縁島嶼域をその候補地として検討すべきであることが示された。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (35 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (17 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 17 results,  Open Access: 8 results) Presentation (15 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Int'l Joint Research] Institute of Ecology and/Biological Resources, Vietnam Academy/of Sciences and Technology(ベトナム)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Institute of Ecology and/Biological Resources, Vietnam Academy/of Sciences and Technology(ベトナム)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] A case of arboreal nest building in the small Japanese field mouse (<i>Apodemus argenteus</i>)2023

    • Author(s)
      Kikuchi Hayato、Oshida Tatsuo
    • Journal Title

      Mammalia

      Volume: 0 Issue: 3 Pages: 214-217

    • DOI

      10.1515/mammalia-2022-0036

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Communal nesting behaviour of Siberian flying squirrels during the non‐winter season2023

    • Author(s)
      Kikuchi H., Akasaka T., Asari Y., Yanagawa H., Oshida T.
    • Journal Title

      Ethology

      Volume: 129 Issue: 10 Pages: 499-506

    • DOI

      10.1111/eth.13386

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Morphological analysis of two Asiatic water shrews (Chimarrogale, Eulipotyphla) from Vietnam2023

    • Author(s)
      Bui T.H., Motokawa M., Biswas J.K., Abramov A.V., Ly N.T., Vu T.D., Nguyen T.S.
    • Journal Title

      Russian Journal of Theriology

      Volume: 22 Issue: 2 Pages: 85-96

    • DOI

      10.15298/rusjtheriol.22.2.01

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new shrew mole species of the genus Uropsilus (Eulipotyphla: Talpidae) from northwestern Vietnam2023

    • Author(s)
      Bui TH, Okabe S., Le L.T.H., Nguyen T.N., Motokawa M.
    • Journal Title

      Zootaxa

      Volume: 5339 Issue: 1 Pages: 59-78

    • DOI

      10.11646/zootaxa.5339.1.3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Morphometric study of sex differences and static variation in the skull of Indochinese ground squirrel, Menetes berdmorei (Rodentia: Sciuridae)2023

    • Author(s)
      Biswas Jadab Kumar, Motokawa Masaharu
    • Journal Title

      Zoologischer Anzeiger

      Volume: 307 Pages: 1-9

    • DOI

      10.1016/j.jcz.2023.08.001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chromosomal Evolution of the Talpinae2023

    • Author(s)
      Biltueva L.S., Vorobieva N.V., Lemskya N.A., Perelman P.L., Trifonov V.A., Panov V.V., Abramov Al.V., Kawada S., Serdukova N.A., Graphodatsky A.S.
    • Journal Title

      Genes

      Volume: 14 Issue: 7 Pages: 1472-1472

    • DOI

      10.3390/genes14071472

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Does communal nesting help thermoregulation in Japanese flying squirrels (Pteromys momonga) in winter?2022

    • Author(s)
      Kikuchi H.、Izumiyama S.、Oshida T.
    • Journal Title

      Russian Journal of Theriology

      Volume: 21 Issue: 1 Pages: 38-44

    • DOI

      10.15298/rusjtheriol.21.1.04

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conservation paleobiology on Minami-DaitoIsland, Okinawa, Japan: Anthropogenic extinction of cave-dwelling bats on a tropical oceanic island.2022

    • Author(s)
      Kimura, Y., D. Fukui, M. Yoshiyuki, K. Higashi
    • Journal Title

      PeerJ

      Volume: 10 Pages: e12702-e12702

    • DOI

      10.7717/peerj.12702

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new subspecies of Finlayson' squirrel from an isolated island offshore of the Indochina Peninsula in southern Vietnam+Q142022

    • Author(s)
      Duong Thuy Vu, Son Truong Nguyen, Masaharu Motokawa, Tu Ngoc Ly, Phuong Huy Dang, Hai Tuan Bui, Minh Duc Le, Hideki Endo, Tatsuo Oshida
    • Journal Title

      Mammalia

      Volume: 86 Issue: 1 Pages: 66-76

    • DOI

      10.1515/mammalia-2021-0015

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bats (Chiroptera) of Bidoup Nui Ba National Park, Dalat Plateau, Vietnam2021

    • Author(s)
      Nguyen Son Truong、O'Shea Thomas J.、Gore Jeffery A.、Nguyen Khoi Vu、Hoang Thanh Trung、Motokawa Masaharu、Dang Phuong Huy、Le Minh Duc、Nguyen Tham Thi、Oshida Tatsuo、Endo Hideki、Tran Tuan Anh、Bui Hai Tuan、Ly Tu Ngoc、Vu Duong Thuy、Chu Hang Thi、Vuong Tu Tan
    • Journal Title

      Mammal Study

      Volume: 46 Issue: 1 Pages: 53-68

    • DOI

      10.3106/ms2020-0024

    • NAID

      40022461394

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Phylogenetic relationships among Callosciurus squirrels in the Indochina Peninsula: phylogenetic position of C. pygerythrus from Myanmar2021

    • Author(s)
      Tatsuo Oshida, Wynn Than, Thida Oo, Khin Yu Yu Swe, Hiroaki Saito, Masaharu Motokawa, Junpei, Kimura, Son Truong Nguyen, Hai Tuan Bui, Phuong Huy Dang
    • Journal Title

      Acta Zoologica Academiae Scientiarum Hungaricae

      Volume: 67 Issue: 1 Pages: 87-98

    • DOI

      10.17109/azh.67.1.87.2021

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biogeographical variation on craniomandibular morphology in pallas's squirrel Callosciurus erythraeus2021

    • Author(s)
      Duong Vu Thuy、Son Nguyen Truong、Hai Bui Tuan、Tu Ly Ngoc、Phuong Dang Huy、Tuan Tran Anh、Motokawa Masaharu、Endo Hideki、Oshida Tatsuo
    • Journal Title

      Academia Journal of Biology

      Volume: 43 Issue: 4 Pages: 25-43

    • DOI

      10.15625/2615-9023/16301

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Zoogeographical barriers causing discontinuous osteometrical variations in the northern treeshrew skulls2021

    • Author(s)
      ENDO Hideki、NGUYEN Truong Son、NGUYEN Dinh Duy、SASAKI Motoki、KIMURA Junpei、OSHIDA Tatsuo、YAGO Masaya、LY Ngoc Tu、NGUYEN Thi Tham、MOTOKAWA Masaharu
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: advpub Issue: 0 Pages: 1534-1544

    • DOI

      10.1292/jvms.21-0322

    • NAID

      130008100560

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Geographic isolation created distinct pelage characters in Finlayson's squirrel on isolated island offshore of the Indochina Peninsula in Central Vietnam2021

    • Author(s)
      Tu Ngoc Ly, Son Truong Nguyen, Masaharu Motokawa, Duong Thuy Vu, Hai Tuan Bui, Phuong Huy Dang, Tatsuo Oshida
    • Journal Title

      Acta Zoologica Academiae Scientiarum Hungaricae

      Volume: 67 Issue: 4 Pages: 403-415

    • DOI

      10.17109/azh.67.4.403.2021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Shrews (Mammalia: Eulipotyphla: Soricidae) from Mt. Tay Con Linh, Ha Giang Province, northeast Vietnam2021

    • Author(s)
      Hiroaki Saito, Bui Tuan Hai, Ly Ngoc Tu, Nguyen Truong Son, Shin-ichiro Kawada, Masaharu Motokawa
    • Journal Title

      Bulletin of the National Museum of Nature and Science, Series A (Zoology)

      Volume: 47 Pages: 43-53

    • NAID

      130007989999

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sexual dimorphism and variability of craniomandibular morphology in the Japanese giant flying squirrel, Petaurista leucogenys (Rodentia: Sciuridae)2020

    • Author(s)
      Biswas Jadab Kumar、Oshida Tatsuo、Motokawa Masaharu
    • Journal Title

      Zoologischer Anzeiger

      Volume: 285 Pages: 1-11

    • DOI

      10.1016/j.jcz.2020.01.003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Body-size Scaling is Related to Gut Microbial Diversity, Metabolism and Dietary Niche of Arboreal Folivorous Flying Squirrels2020

    • Author(s)
      Liu Po-Yu、Cheng An-Chi、Huang Shiao-Wei、Lu Hsiao-Pei、Oshida Tatsuo、Liu Wenhua、Yu Hon-Tsen
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 7809-7809

    • DOI

      10.1038/s41598-020-64801-y

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 繁殖期におけるヒメネズミの集団営巣に関する研究2023

    • Author(s)
      佐々木乃梨, 押田龍夫
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北海道の天然生広葉樹林におけるタイリクモモンガPteromys volans oriiの貯食行動について2023

    • Author(s)
      本馬維子, 照内歩, 内海康弘, 押田龍夫
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北海道に生息するヒメネズミApodemus argenteusの巣材運搬行動-コストと利益を考える-(予報)2023

    • Author(s)
      照内歩, 本馬維子, 内海康弘, 押田龍夫
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ベトナムの真無盲腸目の多様性2023

    • Author(s)
      Bui H.T., Nguyen N.T., Nguyen S.T., Okabe S., Motokawa, M.
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ベトナム産アジアモグラ属の系統関係と分類体系の見直し2023

    • Author(s)
      Nguyen N.T., Bui H.T., Motokawa M.
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 東・東南アジア島嶼に分布するクマネズミのサイズ変異2023

    • Author(s)
      本川雅治, 池田悠吾, 岡部晋也, Bui H.T., Nguyen S.T., de Guia A.P.O., 林良恭
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] チトクロムbを用いたタイ産アカスンダトゲネズミ(Maxomys surifer)の系統地理2023

    • Author(s)
      Pimsai A., Ikeda Y., Motokawa, M.
    • Organizer
      日本哺乳類学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Natural history collection as science infrastructure for research and outreach2022

    • Author(s)
      Masaharu Motokawa
    • Organizer
      PSU Special Seminar on Biodiversity Conservation & Museum Management, Prince of Songkla University, Hat Yai (Online)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Reverse colonization of bats from the Japanese Archipelago to Eurasian continent2022

    • Author(s)
      Yugo Ikeda, Masaharu Motokawa
    • Organizer
      19th International Bat Research Conference, Austin, Texa, USA
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ネズミ科における雄の外部生殖器の比較形態学的研究2021

    • Author(s)
      谷戸崇, 本川雅治
    • Organizer
      日本動物学会第91回大会,オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] キクガシラコウモリ種群における頭骨形態の地理的変異2021

    • Author(s)
      池田悠吾, 江 廷磊, 呉 弘植, Gabor Csorba, 本川 雅治
    • Organizer
      日本動物学会第91回大会,オンライン開催
    • Related Report
      2020 Annual Research Report
  • [Presentation] タイのネズミ科のMaxomys surifer (Miller, 1900)の分類について2021

    • Author(s)
      Awatsaya Pimsai, Masaharu Motokawa
    • Organizer
      日本哺乳類学会2021年度大会,東京農業大学(オンライン開催)
    • Related Report
      2020 Annual Research Report
  • [Presentation] ラオス産モグラジネズミ(真無盲腸目、トガリネズミ科)の同定および系統的位置の解明に基づいた動物地理学的考察2021

    • Author(s)
      岡部晋也, Daosavanh Sanamxay, 本川雅治
    • Organizer
      日本哺乳類学会2021年度大会,東京農業大学(オンライン開催)
    • Related Report
      2020 Annual Research Report
  • [Presentation] リス科齧歯類をモチーフとした哺乳類進化モデル確立への挑戦2021

    • Author(s)
      押田龍夫
    • Organizer
      日本哺乳類学会2021年度大会,東京農業大学(オンライン開催)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 胎子期発生からひも解くコウモリ類のエコーロケーションの進化的起源2021

    • Author(s)
      野尻太郎, Laura Wilson, Camilo Lopez-Aguirre, Vuong Tan Tu, 福井大, 遠藤秀紀, 小薮大輔
    • Organizer
      日本哺乳類学会2021年度大会,東京農業大学(オンライン開催)
    • Related Report
      2020 Annual Research Report
  • [Book] 台湾動物記2023

    • Author(s)
      押田 龍夫
    • Total Pages
      164
    • Publisher
      東京大学出版会
    • ISBN
      9784130633802
    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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