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Driving factors of seed dispersal by birds and mammals

Research Project

Project/Area Number 15K18718
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Forest science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

Naoe Shoji  国立研究開発法人森林総合研究所, 東北支所, 研究員 (80732247)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords種子散布 / 鳥類 / 哺乳類 / 動物散布 / 動物散布樹木 / 森林更新 / 散布カーネル / 種子散布距離
Outline of Final Research Achievements

Our results showed that seed dispersal distance achieved by mammals are tend to be longer than that by birds. This was probably due to the difference of their home range size (i.e., larger home range in mammals). The results also indicated that annual and seasonal variation in community-level fruit abundance can drive seed dispersal distance across species. Abundant fruit satiated fruit removal by animals and decreased their seed dispersal distance. We illustrated that home range of seed disperser and temporal variation in community-level fruit abundance could be determining factors for seed dispersal.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (5 results)

All 2017 2016 2015 Other

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Negative correlation between altitudes and oxygen isotope ratios of seeds: exploring its applicability to assess vertical seed dispersal2016

    • Author(s)
      Naoe S, Tayasu I, Masaki T, Koike S
    • Journal Title

      Ecology and Evolution

      Volume: 6 Issue: 19 Pages: 6817-6823

    • DOI

      10.1002/ece3.2380

    • NAID

      120006223582

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Mountain-climbing bears protect cherry species from global warming through vertical seed dispersal2016

    • Author(s)
      Naoe S, Tayasu I, Sakai Y, Masaki T, Kobayashi K, Nakajima A, Sato Y, Yamazaki K, Kiyokawa H, Koike S
    • Journal Title

      Current Biology

      Volume: 26 Issue: 8 Pages: R315-R316

    • DOI

      10.1016/j.cub.2016.03.002

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 温暖化条件下で標高方向の種子散布が果たす役割:酸素安定同位体を用いた評価2017

    • Author(s)
      直江将司
    • Organizer
      日本生態学会
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Book] わたしの森林研究―鳥のタネまきに注目して―2015

    • Author(s)
      直江 将司
    • Total Pages
      141
    • Publisher
      さ・え・ら書房
    • Related Report
      2015 Research-status Report
  • [Remarks] 酸素安定同位体はさまざまな植物の移動評価に利用できる

    • URL

      https://www.ffpri.affrc.go.jp/research/saizensen/2016/20161013-02.html

    • Related Report
      2016 Annual Research Report

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Published: 2015-04-16   Modified: 2018-03-22  

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