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Anti-predator strategies in savannah baboons: Understanding group formation dynamics and decision-making rules

Research Project

Project/Area Number 19H03312
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45050:Physical anthropology-related
Research InstitutionUniversity of the Ryukyus

Principal Investigator

MATSUMOTO-ODA Akiko  琉球大学, 国際地域創造学部, 教授 (80369206)

Co-Investigator(Kenkyū-buntansha) 粕谷 英一  九州大学, 理学研究院, 准教授 (00161050)
河村 正二  東京大学, 大学院新領域創成科学研究科, 教授 (40282727)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords集団生活 / 意思決定 / 捕食圧 / リーダーシップ / GPS / 危険領域 / リーターシップ
Outline of Research at the Start

動物は一般に、群れを形成することで捕食者対策上の利益を得る。霊長類の群れも捕食者対策として形成されたと考えられるものの、捕食される危険が高い移動時や夜間時における個体の直接観察が困難なために、群れ形成と捕食圧との関わりは未解明であった。本研究は、高性能イリジウムGPSロガーと暗視ビデオを野外調査に導入し、霊長類の群れが捕食圧によってどのように進化したのかを明らかにすることを目的とする。

Outline of Final Research Achievements

In environments with multiple predators, the vulnerability associated with the spatial position of group-living prey is non-uniform and depends on the hunting style of the predator. Theoretically, for coursing predators, individuals at the edge of the group would be at greater risk of predation than those at the center. For ambush predators, isolated individuals in the group would be more vulnerable to predation. These positions of vulnerability to predation would be expected to be occupied by adult males, but dominant males are likely to occupy the center of the safe group. Several theoretical methods (predation risk proxies) have been proposed to assess predation risk. Using GPS collars, we collected spatial position data within a wild baboon group facing predation risk. Our analysis showed that adult males were consistently isolated at the edge of the group for all proxies. Our results highlight the importance of spatial positioning within the group in the context of predation.

Academic Significance and Societal Importance of the Research Achievements

本研究は、霊長類の群れ内の空間的位置による捕食圧の違いに関する検証を、従来のモデル研究からフィールド研究に広げた点に学術的意義がある。これは、初期ヒト科集団の群れ形成と行動モデルを実データで予想し、進化的適応の理解を深化させることに寄与する。また、GPSタグや加速度計を用いて動物の位置データを詳細に収集し、行動のビッグデータを記録することで、人間社会の意思決定プロセスの解明に寄与することが期待される。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (9 results) Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results) Remarks (3 results)

  • [Int'l Joint Research] Max Planck Institute of Animal Behavior(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Mpala Research Centre/The Institute of Primate Research (IPR)/Kenya Wildlife Service (KWS)(ケニア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] UC Davis/Smithsonian Museum(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute of Animal Behavior(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Mpala Research Centre/The Institute of Primate Research (IPR)/Kenya Wildlife Service (KWS)(ケニア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] UC Davis/Smithsonian Museum(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute of Animal Behavior(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Mpala Research Centre/The Institute of Primate Research (IPR)(ケニア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] UC Davis/Smithsonian Museum(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Reduction of bitter taste receptor gene family in folivorous colobine primates relative to omnivorous cercopithecine primates2024

    • Author(s)
      Hou M, Akhtar MS, Hayashi M, Ashino R, Matsumoto-Oda A, Hayakawa T, Ishida T, Melin AD, Imai H, Kawamura S.
    • Journal Title

      Primates

      Volume: - Issue: 4 Pages: 311-331

    • DOI

      10.1007/s10329-024-01124-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Estimating individual exposure to predation risk in group-living baboons, Papio anubis2023

    • Author(s)
      Suire A, Kunita I, Harel R. Crofoot M, Mutinda M, Kamau M, Hassel JM, Murray S, Kawamura S, Matsumoto-Oda A.
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 11 Pages: e0287357-e0287357

    • DOI

      10.1371/journal.pone.0287357

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bathing behaviour in spotted hyenas (Crocuta crocuta) in Laikipia, Kenya: Two observational cases2021

    • Author(s)
      Matsumoto-Oda A
    • Journal Title

      J. East Afr. nat. hist

      Volume: 110 Pages: 87-92

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Point of Care Blood Gas and Electrolyte Analysis in Anesthetized Olive Baboons (Papio anubis) in a Field Setting2021

    • Author(s)
      Kamau Maureen W.、Hassell James M.、Milnes Ellie L.、Hayek Lee-Ann C.、Mutinda Mathew M.、Harel Roi、Matsumoto-Oda Akiko、Yu Jennifer H.、Zimmerman Dawn、Crofoot Margaret、Murray Suzan
    • Journal Title

      International Journal of Primatology

      Volume: 42 Issue: 5 Pages: 667-681

    • DOI

      10.1007/s10764-021-00241-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Influence of rainfall on sleeping site choice by a group of anubis baboons ( <i>Papio anubis</i> )2020

    • Author(s)
      Suire Alexandre、Isbell Lynne A.、Bidner Laura R.、Shinoda Yushin、Akasaka Munemitsu、Matsumoto‐Oda Akiko
    • Journal Title

      American Journal of Primatology

      Volume: 83 Issue: 1

    • DOI

      10.1002/ajp.23223

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ヒヒの性別年齢属性による行動差を反映した陣形形成モデルの提案2023

    • Author(s)
      本間野々花, 松本晶子, 國田樹
    • Organizer
      第24回システムインテグレーション部門講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ケニアのアヌビスヒヒにおけるフランベジア発症例の報告2023

    • Author(s)
      松本晶子
    • Organizer
      第77回日本人類学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ヒヒにおける日中の捕食リスクの個体差2022

    • Author(s)
      松本晶子, Suire A, 國田樹, Harel R, Crofoot M
    • Organizer
      第76回日本人類学会大会・第38回日本霊長類学会大会連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 野生ブチハイエナ(Crocta Crocta)の耐暑戦略としての入浴行動2021

    • Author(s)
      松本 晶子
    • Organizer
      第75回日本人類学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Analyzing Predation Risk Through Spatial Locations in Wild Anubis Baboons (Papio anubis)2021

    • Author(s)
      Suire A, Suzuki R, Harel R, Crofoot M, Matsumoto-Oda A
    • Organizer
      DARS-SWAMR2021: The 4th International Symposium on Swarm Behavior and Bio-Inspired Robotics
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 野生アヌビスヒヒの体温から検討する無毛化の機能2019

    • Author(s)
      松本 晶子、Carter Loftus、上沖正欣
    • Organizer
      第73回日本人類学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Population-level Coordination under Perceptual Constraints: the Impact of Neighbors within Auditory Range on Olive Baboon (Papio anubis) Group Movements2019

    • Author(s)
      Loftus C, Harel R, Isbell L, Bidner L, Kamioki M, Crofoot M, Matsumoto-Oda A
    • Organizer
      SWARM 2019: The 3rd International Symposium on Swarm Behavior and Bio-Inspired Robotics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 松本晶子研究室

    • URL

      https://sites.google.com/view/akikomatsumotolab/home

    • Related Report
      2020 Annual Research Report
  • [Remarks] How do troops of baboons make decisions?

    • URL

      https://www.ab.mpg.de/245322/baboon-decision-making

    • Related Report
      2020 Annual Research Report
  • [Remarks] 松本晶子研究室

    • URL

      https://sites.google.com/view/akikomatsumotolab/home?authuser=0

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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