Defense strategies of plants and dynamics of animal-plant interaction : Construction of the unified theory by mathematical modeling

• Project/Area Number: 18570018
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Research Institute for Humanity and Nature (2007-2008); Kyoto University (2006)
• Principal Investigator: YAMAMURA Norio Research Institute for Humanity and Nature, 研究部, 教授 (70124815)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,100,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥600,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2006: ¥1,500,000 (Direct Cost: ¥1,500,000)
• Keywords: 植物の防御戦略 / 恒常防御 / 誘導防御 / 直接防御 / 聞接防御 / 群集動態 / 動植物相互作用 / 繁殖抑制 / 個体数変動 / 種多様性 / 家畜防御柵 / 遊牧 / 土地所有制度 / 動物の繁殖戦略 / 共生微生物 / 繁殖移動 / システムの安定性 / 種間競争 / 行動の可塑性 / 空間構造 / 間接防御 / SOS信号 / 成長器官 / 繁殖器官 / ダニの家 / 巻き添え競争 / 栄養価

Research Abstract

植物の被食防衛戦略を分類し、評価した。植食者の発生確率と被食強度が予測可能なときは、あらかじめ防御方法を準備しておく恒常型が有利となり、それらの予測制が低いときは食われてから防御を始めるという誘導型が有利となる。化学物質を生産したり、物理的形状を変化させたりという直接防御を用いるか、植食者の天敵を利用して防御する間接防御を用いるかは、それぞれの戦略のコストとベネフィットに依存することが分かった。

Research Products

• [Journal Article] Positive and negative effects of livestock grazing on plant diversity of Mongolian nomadic pasturelands along a slope with soil moisture gradient. (2009)
  • Author(s): Fujita, N. , Amartuvshin, N., Yamada, Y., Matsui, K., Sakai, S. and Yamamura, N.
  • Journal Title: Grassland Science (in press)
  • NAID: 10027253354
  • Peer Reviewed
• [Journal Article] Food-dependent reproductive adjustment and stability of consumer-resource dynamics. (2009)
  • Author(s): Nakazawa, T., Ohgushi, T. and Yamamura, N.
  • Journal Title: Population Ecology 51 Pages: 105-113
  • Peer Reviewed
• [Journal Article] Food-dependent reproductive adjustment and stability of consumer-resource dynamics (2009)
  • Author(s): Nakazawa, T., Ohgushi, T, Yamamura, N.
  • Journal Title: Population Ecology 51 Pages: 105-113
  • Peer Reviewed
• [Journal Article] Positive and negative effects of livestock grazing on plant diversity of Mongolian nomadic pasturelands along a slope with soil moisture gradient (2009)
  • Author(s): Fujita, N., Amartuvshin, N., Yamada, Y., Matsui, K., Sakai, S, Yamamura, N.
  • Journal Title: Grassland Science (in press)
  • NAID: 10027253354
  • Peer Reviewed
• [Journal Article] Coexistence of cytoplasmic incompatibility and male-killing inducing endosymbionts, and their impact on host gene flow. (2008)
  • Author(s): Engelstadter J., Telschow A., and Yamamura, N.
  • Journal Title: Theoretical Population Biology 73 Pages: 125-133
  • Peer Reviewed
• [Journal Article] Coexistence of cytoplasmic incompatibility and male-killing inducing end osymbionts,and their impact on host gene flow (2008)
  • Author(s): Engelstadter J., A. Telschow, N. Yamamura
  • Journal Title: Theoretical Population Biology 73 Pages: 125-133
  • Peer Reviewed
• [Journal Article] Optimal phenology of annual plants under grazing pressure. (2007)
  • Author(s): Yamamura, N., Fujita N., Hayashi M., Nakamura Y., and Yamauchi, A.
  • Journal Title: Journal of Theoretical Biology 246 Pages: 530-537
  • Peer Reviewed
• [Journal Article] Conditions under which plants help herbivores and benefit from predators through apparent competition. (2007)
  • Author(s): Yamamura, N.
  • Journal Title: Ecology 88 Pages: 1593-1599
  • Peer Reviewed
• [Journal Article] Breeding migration and population stability. (2007)
  • Author(s): Nakazawa, T. and Yamamura, N.
  • Journal Title: Population Ecology 49 Pages: 101-113
  • Peer Reviewed
• [Journal Article] Evolution of signal emission by uninfested plants to help nearby infested relatives. (2007)
  • Author(s): Kobayashi, Y. and Yamamura, N.
  • Journal Title: Evolutionary Ecology 21 Pages: 281-294
  • Peer Reviewed
• [Journal Article] Breeding migration and population stability (2007)
  • Author(s): Nakazawa, T., N. Yamamura
  • Journal Title: Population Ecology 49 Pages: 101-113
  • Peer Reviewed
• [Journal Article] Evolution of talking plants in a tritrophic context : Conditions for uninfested plants to attract predators prior to herbivore attack. (2006)
  • Author(s): Kobayashi, Y., Yamamura, N. and Sabelis, M. W.
  • Journal Title: Journal of Theoretical Biology 243 Pages: 361-374
  • Peer Reviewed
• [Journal Article] Evolution of talking plants in a tritrophic context : Conditions for uninfested plants to attract predators prior to herbivoreattack (2006)
  • Author(s): Kobayashi, Y., N.Yamamura, M.W.Sabelis
  • Journal Title: Journal of Theoretical Biology 243 Pages: 361-374
• [Journal Article] Theoretical considerations for themaintenance of interspecific brood care by a Nicaraguan cichlid fish:Behavioral plasticity and spatial structure
  • Author(s): Nakazawa, T., N. Yamamura
  • Journal Title: Journal of Ethology (in press)
  • Peer Reviewed
• [Journal Article] Evolution of signal emission by uninfested plants to help nearby infested relatives
  • Author(s): Kobayashi, Y., N.Yamamura
  • Journal Title: Evolutionary Ecology (in press)
• [Journal Article] Optimal phenology of annual plants under grazing pressure
  • Author(s): Yamamura, N., N.Fujita, M.Hayashi, Y.Nakamura, A.
  • Journal Title: Journal of Theoretical Biology (in press)
• [Journal Article] Conditions for plants to help herbivores and thereby benefit from predators through apparent competition
  • Author(s): Yamamura, N
  • Journal Title: Ecology (in press)
• [Presentation] 変動環境下の土地利用:私有か共有か? (2009)
  • Author(s): 山村則男
  • Organizer: 第55回日本生態学会
  • Place of Presentation: 岩手県立大学
  • Year and Date: 2009-03-18
• [Presentation] 変動環境下の土地利用:私有か共有か? (2009)
  • Author(s): 山村則男
  • Organizer: 日本生態学会
  • Place of Presentation: 岩手県立大学
  • Year and Date: 2009-03-18
• [Presentation] 土地利用の数理モデル:私有か共有か (2008)
  • Author(s): 山村則男
  • Organizer: 第18回日本数理生物学会
  • Place of Presentation: 同志社大学寒梅館
  • Year and Date: 2008-09-16
• [Presentation] 土地利用の数理モデル:私有か共有か (2008)
  • Author(s): 山村則男
  • Organizer: 日本数理生物学会
  • Place of Presentation: 同志社大学寒梅館
  • Year and Date: 2008-09-16
• [Presentation] 人間移動の数理モデル:都市と田舎 (2008)
  • Author(s): 山村則男
  • Organizer: 第55回日本生態学会
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2008-03-17
• [Presentation] 人間移動の数理モデル:都会と田舎 (2008)
  • Author(s): 山村 則男
  • Organizer: 日本生態学会
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2008-03-17
• [Book] 理論生物学入門 (2007)
  • Author(s): 関村利朗・竹内康博・梯正之・山村則男
  • Total Pages: 319
  • Publisher: 現代図書
• [Remarks]
  • URL: http://www.chikyu.ac.jp/yamamura-pro/yamamura/index.html