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Ecological study on the adaptive significance of autumn leaf colouration

Research Project

Project/Area Number 22580177
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionOsaka City Institute of Public Health and Environmental Sciences

Principal Investigator

YAMAZAKI Kazuo  大阪市立環境科学研究所, その他部局等, 研究員 (30332448)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords紅葉 / 共進化 / アブラムシ / アリ / 適応的意義
Research Abstract

Two hypotheses explaining the adaptive significance of autumn leaf colors (coevolution hypothesis: the color is an honest warning signal of tree defence against herbivores, tritrophic interaction hypothesis: the color attracts myrmecophilous aphids in autumn and in next spring ants attending the aphids defend trees from herbivores) were tested in the field using three tree species of four sites. Neither hypotheses were supported. However, in two tree species, there was significant correlation between autumn leaf colors and resistance against herbivorous insects. The comparison of colors of new spring leaves with those of old autumn leaves in more than 150 plant species revealed that in many species the colors of new leaves were different from those of old leaves, suggesting different natural selection acting on leaf colors between in spring and in autumn.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (7 results)

All 2013 2012 2011

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

  • [Journal Article] Spring versus autumn leaf colours: evidence for different selective agents and evolution in various species and floras.2012

    • Author(s)
      Lev-Yadun, S., Yamazaki, K., Holopainen, J. K. & Sinkkonen, A.
    • Journal Title

      Flora

      Volume: 207 Pages: 80-85

    • URL

      http://dx.doi.org/10.1016/j.flora.2011.10.007

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spring versus autumn leaf colours : evidence for different selective agents and evolution in various species and floras2012

    • Author(s)
      Simcha Lev-Yadun, Kazuo Yamazaki, Jarmo Holopainen, Aki Sinkkonen
    • Journal Title

      Flora

      Volume: 207 Issue: 1 Pages: 80-85

    • DOI

      10.1016/j.flora.2011.10.007

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 葉色を決める要因―新葉と古葉の色比較から―2013

    • Author(s)
      山崎一夫
    • Organizer
      第60回日本生態学会大会
    • Place of Presentation
      グランシップ(静岡市)
    • Year and Date
      2013-03-08
    • Related Report
      2012 Final Research Report
  • [Presentation] 葉色を決める要因―新葉と古葉の色比較から―2013

    • Author(s)
      山崎一夫
    • Organizer
      第60回日本生態学会大会
    • Place of Presentation
      グランシップ(静岡市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 紅葉と植食性昆虫の関係2012

    • Author(s)
      山崎一夫
    • Organizer
      第24回日本環境動物昆虫学会大会
    • Place of Presentation
      名古屋大学(名古屋市)
    • Year and Date
      2012-11-18
    • Related Report
      2012 Final Research Report
  • [Presentation] 紅葉と植食性昆虫の関係2012

    • Author(s)
      山崎一夫
    • Organizer
      第24回日本環境動物昆虫学会大会
    • Place of Presentation
      名古屋大学(名古屋市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] エノキの黄葉は植食性昆虫による食害を減少させるか?2011

    • Author(s)
      山崎一夫
    • Organizer
      第23回日本環境動物昆虫学会大会
    • Place of Presentation
      ホテルメリージュ(宮崎市)
    • Year and Date
      2011-11-13
    • Related Report
      2012 Final Research Report 2011 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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