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2010 Fiscal Year Final Research Report

Adaptive reproduction strategy and population dynamics through learning and memory of the parasitic wasp and bruchine beetles

Research Project

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Project/Area Number 20370008
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Ecology/Environment
Research InstitutionThe University of Tokyo

Principal Investigator

SHIMADA Masakazu  東京大学, 大学院・総合文化研究科, 教授 (40178950)

Co-Investigator(Renkei-kenkyūsha) SHIBAO Harunob  東京大学, 大学院・総合文化研究科, 助教 (90401207)
Research Collaborator ISHI Yumiko  国立環境研究所, 生物・生態系環境研究センター, 特別研究員
Project Period (FY) 2008 – 2010
Keywords個体群動態 / 3者宿主-寄生蜂実験系 / 学習 / 記憶 / アズキゾウムシ / ヨツモンマメゾウムシ / ゾウムシコガネコバチ / 生物種の多様性維持
Research Abstract

Population dynamics of three-species experimental systems with two hosts(bruchine seed beetles) and the parasitic wasp was analyzed based on learning and memory of insects. Two-species systems without the wasp showed Callosobruchus chinensis went to extinction with competitively dominant C. maculatus. However, three-species systems with the wasp which shows frequency-dependent predation based on learning and memory persisted, showing lasting anti-phase population oscillations of two host species. Choice behaviors in prey and predator may affect biodiversity maintenance through adaptive rapid strategy and population dynamics in nature.

  • Research Products

    (7 results)

All 2010 2008 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (2 results) Remarks (1 results)

  • [Journal Article] Rapid adaptation : a new dimension for evolutionary perspectives in ecology2010

    • Author(s)
      Shimada M., Ishii Y., and Shibao H.
    • Journal Title

      Population Ecology

      Volume: 52 Pages: 5-14

    • Peer Reviewed
  • [Journal Article] The effect of learning and search images on predator-prey interactions2010

    • Author(s)
      Ishii Y. and Shimada M.
    • Journal Title

      Population Ecology

      Volume: 52 Pages: 27-35

    • Peer Reviewed
  • [Journal Article] Analyzing house fly's exploration behavior with AR methods2008

    • Author(s)
      Takahashi H., Horibe N., Shimada M. and Ikegami T.
    • Journal Title

      The Journal of the Physical Society of Japan

      Volume: 77 Pages: 084802-1-6

    • Peer Reviewed
  • [Journal Article] Competitive exclusion between contest and scramble strategists in Callosobruchus seed. beetle modeling2008

    • Author(s)
      Ishii Y. and Shimada M.
    • Journal Title

      Population Ecology

      Volume: 50 Pages: 197-205

    • Peer Reviewed
  • [Presentation] Olfactory search image and host-parasitoid dynamics2010

    • Author(s)
      Ishii Y. and Shimada M
    • Organizer
      Japan-Netherlands Seminar on Parasitoid Biology
    • Place of Presentation
      東京大学駒場ファカルティハウス
    • Year and Date
      2010-08-24
  • [Presentation] マメゾウムシ個体群の種間競争モデリング2010

    • Author(s)
      石井弓美子
    • Organizer
      第57回日本生態学会
    • Place of Presentation
      東京大学駒場キャンパス
    • Year and Date
      2010-03-15
  • [Remarks]

    • URL

      http://park.itc.u-tokyo.ac.jp/shimada-lab/index.html

URL: 

Published: 2013-07-31  

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