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Evaluation of population units considering population dynamics, genetic structure, and life history variation

Research Project

Project/Area Number 23770013
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ecology/Environment
Research InstitutionHokkaido University

Principal Investigator

KOIZUMI Itsuro  北海道大学, 創成研究機構, 特任助教 (50572799)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords個体群動態 / 個体群ユニット / 進化的に重要な単位(ESU) / 同調性 / 遺伝的構造 / 生活史形質 / 地理的変異 / サケ科魚類 / 進化的に重要な単位(ESU) / 個体群生態学 / 進化生態学 / 集団遺伝学 / 個体群管理 / 遺伝的多様性 / 北海道 / 生活史変異
Research Abstract

This study examined "population units" with long-term data on salmonid fish, considering population dynamics, genetic structure, and life history variation. Microsatellite DNA analysis indicated genetic homogeneity for stream groups within 5-10km. However, demographic independency was suggested even among genetically non-divergent groups. In addition, despite significant variations in life history traits among streams, no geographic cluster was observed. This study suggested that population units can vary depending on the entities we focus.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (11 results)

All 2013 2012 2011 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (6 results) (of which Invited: 1 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Loss of genetic diversity means loss of geological information : the endangered Japanese crayfish possessed remarkable historical footprints2012

    • Author(s)
      Koizumi I., Usio N., Kawai T., Azuma N. and Masuda R
    • Journal Title

      PLoS ONE

      Volume: 7 Issue: 3 Pages: e33986-e33986

    • DOI

      10.1371/journal.pone.0033986

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fine scale relationship between sex, life history and dispersal of masu salmon.2012

    • Author(s)
      Kitanishi S., Yamamoto T., Koizumi I., Dunham JB and Higashi S.
    • Journal Title

      Ecology & Evolution

      Volume: in press Issue: 5 Pages: 920-929

    • DOI

      10.1002/ece3.228

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 個体群の単位を探る : 遺伝的均一性と個体数同調性の関係2013

    • Author(s)
      小泉逸郎
    • Organizer
      日本生態学会第60回大会
    • Place of Presentation
      静岡県コンベンションアーツセンター(口頭発表)
    • Related Report
      2013 Final Research Report
  • [Presentation] 個体群の単位を探る:遺伝的均一性と個体数同調性の関係2013

    • Author(s)
      小泉逸郎
    • Organizer
      日本生態学会
    • Place of Presentation
      静岡県コンベンションアーツセンター
    • Related Report
      2012 Research-status Report
  • [Presentation] 北海道二十四河川におけるシロザケ遡上数の時系列解析2013

    • Author(s)
      大坪澄生・高田壮則・小泉逸郎
    • Organizer
      日本生態学会
    • Place of Presentation
      静岡県コンベンションアーツセンター
    • Related Report
      2012 Research-status Report
  • [Presentation] 遺伝子頻度データを一般化線形モデルの枠組みで解析できるか2012

    • Author(s)
      小泉逸郎
    • Organizer
      ISMシンポジウム『生物集団に関する遺伝データと集団遺伝学』
    • Place of Presentation
      静岡県コンベンションアーツセンター
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 失われゆく地域固有性:サケ科魚類・ザリガニを例に2011

    • Author(s)
      小泉逸郎
    • Organizer
      日本動物学会(招待講演)
    • Place of Presentation
      大雪クリスタルホール(旭川、北海道)
    • Related Report
      2011 Research-status Report
  • [Presentation] 野外で見られる魚類個体群の進化2011

    • Author(s)
      小泉逸郎
    • Organizer
      日本動物学会(招待講演)
    • Place of Presentation
      大雪クリスタルホール(旭川、北海道)
    • Related Report
      2011 Research-status Report
  • [Book] 系統地理学:DNAで解き明かす生きものの自然史2013

    • Author(s)
      池田啓、小泉逸郎
    • Total Pages
      314
    • Publisher
      文一総合出版社
    • Related Report
      2013 Final Research Report
  • [Book] 系統地理学:DNAで解き明かす生ものの自然史2013

    • Author(s)
      池田啓・小泉逸郎(責任編者)
    • Total Pages
      314
    • Publisher
      文一総合出版社
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www.cris.hokudai.ac.jp/koizumi/

    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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