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ドローンを用いた野生ウマにおける個体および群れの行動遷移メカニズムの解明

Research Project

Project/Area Number 18J22190
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Ecology/Environment
Research InstitutionKyoto University

Principal Investigator

井上 漱太  京都大学, 理学研究科, 特別研究員(DC1)

Project Period (FY) 2018-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2020: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2019: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
Keywordsウマ / 群れ / ドローン / シミュレーション / 集団の意思決定 / ディープラーニング / UAV / 群れのルール / 集団行動
Outline of Annual Research Achievements

2020年度はウマの個体間距離を制御する力のダイナミクスの推定および群れのまとまりに影響する要因の検討をおこなった。当初の予定では、野外調査地であるポルトガル、アルガ山に渡航し群れの移動場面のデータ収集を行う予定だった。しかし、コロナウィルス蔓延の影響により、予定を変更し、既存のデータの解析をおこなった。
ウマの個体間距離を調整しているメカニズムを明らかにするため、個体間に作用している力をモデル化し、数値シミュレーションを用いて、その形および作用範囲を推定した。力のモデルとして、個体間距離が近い場合、個体は互いに反発し、遠い場合、互いに近づくことを想定した。観測値を説明できるようなパラメータセットを探索したところ、およそ4胴長前後で反発と誘引が逆転し、誘引の範囲は8胴長以内というような力が最も実測値を説明できた。
ウマの群れのまとまりに影響する要因を検討した。群れサイズ、群れ内のオス数、群れ間における相対的空間配置の3つの要因を検討した。さらに本研究では、群れのまとまりを最小凸包で表した場合と平均最近接個体間距離で表現した場合の違いも検討した。その結果、群れ内のオスの数のまとまりへの影響は確認できなかったが、群れ間において、より中心に位置する群れは小さくまとまっているという結果が得られた。さらに、群れサイズにおける結果では、群れのまとまりを最小凸包で表現するか、最近接個体間距離で表現するかによって、異なることがわかった。
これらの研究結果は現在国際誌に投稿され査読中である。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (22 results)

All 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (16 results) (of which Int'l Joint Research: 14 results)

  • [Int'l Joint Research] University paris III Sorbonne Nouvelle(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Glasgow(英国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Herding mechanisms to maintain the cohesion of a harem group: two interaction phases during herding2020

    • Author(s)
      Monamie Ringhofer, Clark K Go, Sota Inoue, Renata S Mendonca, Sotoshi Hirata, Takatomi Kubo, Kazushi Ikeda, Shinya Yamamoto
    • Journal Title

      Journal of Ethology

      Volume: 38(1) Issue: 1 Pages: 71-77

    • DOI

      10.1007/s10164-019-00622-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Feral horses’ (Equus ferus caballus) behavior toward dying and dead conspecifics2020

    • Author(s)
      Renata Mendonca, Monamie Ringhofer, Pandora Pinto, Sota Inoue, Satoshi Hirata
    • Journal Title

      Primates

      Volume: 61(1) Issue: 1 Pages: 49-54

    • DOI

      10.1007/s10329-019-00728-x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lateral position preference in grazing feral horses2019

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata S Mendonca, Satoshi Hirata
    • Journal Title

      Ethology

      Volume: 126 Issue: 1 Pages: 111-119

    • DOI

      10.1111/eth.12966

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatial positioning of individuals in a group of feral horses: a case study using drone technology2019

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata S. Mendonca, Carlos Pereira, Satoshi Hirata
    • Journal Title

      Mammal Research

      Volume: 64 Issue: 2 Pages: 249-259

    • DOI

      10.1007/s13364-018-0400-2

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Collective departure in feral horses: combining wild animals with drone2019

    • Author(s)
      Inoue Sota, Torney Colin J., Yamamoto Shinya, Ringhofer Monamie, Mendonca Renata S., Hirata Satoshi
    • Organizer
      The 3rd International Symposium on Swarm Behavior and Bio-inspired Robotics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Differences in spatial positioning of individuals among feral horse groups2019

    • Author(s)
      Inoue Sota, Yamamoto Shinya, Ringhofer Monamie, Mendonca Renata S., Hirata Satoshi
    • Organizer
      The 2nd international wild equid conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of force working between individuals in feral horses2019

    • Author(s)
      Inoue Sota, Fukazawa Keiichiro, Yamamoto Shinya, Ringhofer Monamie, Mendonca Renata S., Hirata Satoshi
    • Organizer
      Association for the Study of Animal Behavior summer conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lateral position preferences in feral horses2019

    • Author(s)
      Inoue Sota, Yamamoto Shinya, Ringhofer Monamie, Mendonca Renata S., Hirata Satoshi
    • Organizer
      Behavior 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Collective departure in feral horses2019

    • Author(s)
      Inoue Sota, Torney Colin J., Yamamoto Shinya, Ringhofer Monamie, Mendonca Renata S., Hirata Satoshi
    • Organizer
      The 12th international symposium of primatology and wildlife science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial positioning of individuals in feral horses2019

    • Author(s)
      Inoue Sota
    • Organizer
      JSPS The 8th international workshop on tropical biodiversity and conservation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 野生ウマにおける集団の意思決定過程2019

    • Author(s)
      井上漱太, Colin J. Torney, 山本真也, リングホーファー萌奈美, Renata S. Mendonca, 平田聡
    • Organizer
      第38回日本動物行動学会大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of force working between individuals in feral horses2019

    • Author(s)
      Sota Inoue, Keiichiro Fukazawa, Satoshi Hirata
    • Organizer
      The 11th International Symposium on Primatology and Wildlife
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ウマの個体間に働く力の数値シミュレーション2019

    • Author(s)
      井上漱太、深沢圭一郎、平田聡
    • Organizer
      プリマーテス研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] How drone can contribute to animal behavioral study2018

    • Author(s)
      Sota Inoue
    • Organizer
      The 9th International seminoar on Biodiversity and Evolution
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Differences in spatial positioning of individuals among feral horse groups2018

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata Mendonca, Satoshi Hirata
    • Organizer
      The 7th International Workshop on Tropical Biodiversity Conservation focusing on Large Animal Studies
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lateral position preferences in feral horses2018

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata Mendonca, Satoshi Hirata
    • Organizer
      The 10th International Symposium on Primatology and Wildlife
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How do the departures begin in feral horse groups2018

    • Author(s)
      Sota Inoue, Colin Torney, Shinya Yamamoto, Monamie Ringhofer, Renata Mendonca, Satoshi Hirata
    • Organizer
      Symposium on System Science of Bio-Navigation 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Differences in spatial positioning of individuals among feral horses groups2018

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata Mendonca, Satoshi Hirata
    • Organizer
      Animal behavior society 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Individual differences in spatial positioning in feral horses2018

    • Author(s)
      Sota Inoue, Shinya Yamamoto, Monamie Ringhofer, Renata Mendonca, Satoshi Hirata
    • Organizer
      Conference on Collective behavior
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ウマの群れにおける個体の空間配置の多様性とその要因2018

    • Author(s)
      井上漱太、山本真也、リングホーファー萌奈美、Renata Mendonca、平田聡
    • Organizer
      日本動物行動学会第37回大会
    • Related Report
      2018 Annual Research Report

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Published: 2018-05-01   Modified: 2024-03-26  

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