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Effects of population dynamics on spatial genetic structure ofgrey-sided vole populations in Hokkaido

Research Project

Project/Area Number 19370006
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Ecology/Environment
Research InstitutionHokkaido University

Principal Investigator

SAITOH Takashi  Hokkaido University, 北方生物圏フィールド科学センター, 教授 (00183814)

Co-Investigator(Kenkyū-buntansha) MAEKAWA Koji  北海道大学, 名誉教授 (80002301)
ISHIBASHI Yasuyuki  独立行政法人森林総合研究所, 北海道支所, 主任研究員 (80353580)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2008: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2007: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Keywordsエゾヤチネズミ / 遺伝的空間構造 / 個体数変動 / 遺伝的浮動 / 瓶首効果 / ドリフト / 地理的変異 / DNA
Research Abstract

エゾヤチネズミ個体群が構造化されるプロセスを明らかにするために大陸を含む陸塊間, 地域個体群間, 局所個体群間で個体群の構造を分析した.陸塊間においては予測通り明瞭な遺伝的な分化が見られた.地域個体群間, 局所個体群間の結果は予測と大きく異なった.分布・定着後十分に長い時間を経ている動物個体群においては, 地理的に近い個体群間では遺伝的に類似するという関係が期待されるが, 地域個体群間においても, 局所個体群間においてもこの関係が確認されなかった.これは, 分析した距離スケールがエゾヤチネズミの移動能力を上回っていたために遺伝的交流の効果が他の効果に打ち消されたためと考えられた

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (11 results)

All 2009 2008 2007 Other

All Journal Article (6 results) (of which Peer Reviewed: 5 results) Presentation (3 results) Book (2 results)

  • [Journal Article] Effects of acorn abundance on density dependence in a Japanese wood mouse(Apodemus speciosus) population.2008

    • Author(s)
      Saitoh T, Vik JO, Stenseth NC, Takanishi T, Hayakashi S, Ishida N, Ohmori M, Morita T, Uemura S, Kadomatsu M, Osawa J, Maekawa K
    • Journal Title

      Population Ecology 50(2)

      Pages: 159-167

    • NAID

      10021067333

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of local density of males on the occurrence of multimale mating in the gray-sided vole(Myodes rufocanus)2008

    • Author(s)
      Ishibashi Y, Saitoh T
    • Journal Title

      Journal of Mammalogy 89

      Pages: 388-397

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Role of male-biased dispersal in inbreeding avoidance in the grey-sided vole (Myodes rufocanus)2008

    • Author(s)
      Ishibashi Y, Saitoh T
    • Journal Title

      Molecular Ecology 17

      Pages: 4887-4896

    • Related Report
      2008 Annual Research Report 2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of acorn abundance on density dependence in a Japanese wood mouse (Apodemus speciosus) population2008

    • Author(s)
      Saitoh T, Vik JO, Stenseth NC, Takanishi T, Hayakashi S, Ishida N, Ohmori M, Morita T, Uemura S, Kadomatsu M, Osawa J, Maekawa K
    • Journal Title

      Population Ecology 50

      Pages: 159-167

    • NAID

      10021067333

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of local density of males on the occurrence of multimale mating in the gray-sided vole (Myodes rufocanus)2008

    • Author(s)
      Ishibashi Y. Saitoh T
    • Journal Title

      Journal of Mammalogy 89

      Pages: 388-397

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Taxonomic, genetic and ecological status of the Daikoku vole.2007

    • Author(s)
      Takashi Saitoh, Anna Pauline de Guia, Yoshie Kato and Koji Maekawa
    • Journal Title

      Proceeding of International Symposium on The Origin and Evolution of Natural Diversity

      Pages: 145-150

    • NAID

      120006660485

    • Related Report
      2007 Annual Research Report
  • [Presentation] Spatial genetic structure of the gray-sided vole in Hokkaido, Japan. Internationa Symposium of Modern Achievements in Population2007

    • Author(s)
      Saitoh T, de Guia APO, Ishibashi Y.
    • Organizer
      Evolutionary and Ecological Genetics
    • Place of Presentation
      Vladivostok, Russia
    • Related Report
      2008 Final Research Report
  • [Presentation] Population genetic structure revealed by using Y-chromosome DNA markers in the grey-sided vole, Clethrionomys rufocanus.2007

    • Author(s)
      Ishibashi Y, Takahashi K
    • Organizer
      International Symposium of Modern Achievements in Population, Evolutionary and Ecological Genetics
    • Place of Presentation
      Vladivostok, Russia
    • Related Report
      2008 Final Research Report
  • [Presentation] Spatial genetic structure of the gray-sided vole in Hokkaido, Japan2007

    • Author(s)
      Takashi Saitoh, Anna Pauline de Guia, Yasuyuki Ishibashi
    • Organizer
      Modern Achievements in Population, Evolutionary and Ecological Genetics
    • Place of Presentation
      Vostok Marine Biological Station (Nakhodka)
    • Related Report
      2007 Annual Research Report
  • [Book] Shokadoh Press2009

    • Author(s)
      Ohdachi S, Iwasa M, Ishibashi Y, Saitoh T(eds)
    • Publisher
      Mammals in Japan
    • Related Report
      2008 Final Research Report
  • [Book] 数えることで見えてくる!-生物の数の不思議-

    • Author(s)
      島田卓哉・齊藤隆(編)
    • Total Pages
      72
    • Publisher
      文一総合出版
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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