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Cross-kingdom competitions among microbes, arthropods, and vertebrates for animal carcasses

Research Project

Project/Area Number 18K06430
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45040:Ecology and environment-related
Research InstitutionNihon University

Principal Investigator

NAKASHIMA Yoshihiro  日本大学, 生物資源科学部, 准教授 (80722420)

Co-Investigator(Kenkyū-buntansha) 笠原 康裕  北海道大学, 低温科学研究所, 准教授 (20273849)
大舘 智志  北海道大学, 低温科学研究所, 助教 (60292041)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords動物死体 / 自動撮影カメラ / スカベンジング / 資源競争 / 生物間相互作用 / 分解 / 死肉性昆虫 / 食肉目 / 微生物 / 動物遺体 / 遷移 / ハエ / 種間相互作用 / 競争 / 昆虫 / 哺乳類
Outline of Final Research Achievements

In this study, we studied how species interactions among distantly-related organisms affect the limited resources by using vertebrate carcasses as a model. Specifically, we observed the carcass fate of a raccoon in the summer 2018-2021 and quantified the effects of consumption by necrophagous insects and microbes on the time to detection and the consumption rate by vertebrate scavengers. The results showed that consumption by fly larvae (especially Chrysomya pinguis) and microbes greatly limited the carcasses available for consumption by mammalian carnivores (red fox and raccoon dog), while the activities of the fly larvae accelerated the detection of carcasses by the carnivores.

Academic Significance and Societal Importance of the Research Achievements

資源競争は,これまで最も活発な研究がなされてきた生物間相互作用であり,生物群集を形作る重要な要素となりうることが分かっている.しかし,従来の研究は,近縁種間による競争に注目したものが多く,非近縁種間での生物間相互作用が資源の利用可能性にどのような影響をもたらすのかについては十分な研究がなされていない.本研究では,脊椎動物死体をモデルとして,非近縁な生物間においても,正負両面の効果を持つ複雑な相互作用が生じうることを示した.こうした知見は,生物多様性と生態系機能や生態系サービスの関係性を明らかにするうえでも欠かせないものである.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019 Other

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (6 results) Remarks (1 results)

  • [Journal Article] Can video traps reliably detect animals? Implications for the density estimation of animals without individual recognition2021

    • Author(s)
      Yajima, G. and Nakashima, Y.
    • Journal Title

      Mammal Study

      Volume: 46 Issue: 3

    • DOI

      10.3106/ms2020-0055

    • NAID

      210000164518

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Predation on an introduced bullfrog <i>Lithobates catesbeiana</i> by native vertebrate predators in the Boso Peninsula, Japan2020

    • Author(s)
      中島 啓裕
    • Journal Title

      Honyurui Kagaku (Mammalian Science)

      Volume: 60 Issue: 1 Pages: 2-2

    • DOI

      10.11238/mammalianscience.60.2

    • NAID

      130007798004

    • ISSN
      0385-437X, 1881-526X
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Landscape-scale estimation of forest ungulate density and biomass using camera traps: Applying the REST model2020

    • Author(s)
      Nakashima Yoshihiro、Hongo Shun、Akomo-Okoue Etienne Fransois
    • Journal Title

      Biological Conservation

      Volume: 241 Pages: 108381-108381

    • DOI

      10.1016/j.biocon.2019.108381

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Potentiality and limitations of N‐mixture and Royle‐Nichols models to estimate animal abundance based on noninstantaneous point surveys2019

    • Author(s)
      Nakashima Yoshihiro
    • Journal Title

      Population Ecology

      Volume: 62 Issue: 1 Pages: 151-157

    • DOI

      10.1002/1438-390x.12028

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Camera trapping is opening up a new future in mammalogy: importance of field experiences and statistical thoughts2019

    • Author(s)
      中島 啓裕
    • Journal Title

      Honyurui Kagaku (Mammalian Science)

      Volume: 59 Issue: 1 Pages: 111-116

    • DOI

      10.11238/mammalianscience.59.111

    • NAID

      130007694969

    • ISSN
      0385-437X, 1881-526X
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 腐肉に集まる昆虫の種相及び個体数は微生物やウジを排除した場合どう変わるのか?2021

    • Author(s)
      松島義治, 橋詰茜, 幸田良介, 中島啓裕
    • Organizer
      日本生態学会第68回全国大会 (2021年3月、岡山)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 動物の死骸は誰のもの?: 死肉食性昆虫と雑食性食肉目の消費型競争2021

    • Author(s)
      橋詰茜(日大・生物資源), 松島義治, 幸田良介, 笠原康裕, 大舘智志, 中島啓裕
    • Organizer
      日本生態学会第68回全国大会 (2021年3月、岡山)
    • Related Report
      2020 Annual Research Report
  • [Presentation] スズメバチは腐肉食性昆虫の採食行動を促進させるのか:マウス死体を用いた検証2021

    • Author(s)
      佐藤愛理, 松島義治, 矢島豪太, 中島啓裕
    • Organizer
      日本生態学会第68回全国大会 (2021年3月、岡山)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 腐肉に集まる昆虫の種相及び個体数は微生物やウジを 排除した場合どう変わるのか?2020

    • Author(s)
      松島義治, 橋 詰茜, 幸田良介, 中島啓裕
    • Organizer
      日本生態学会第67回全国大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 肉の腐敗にどう抗うか?ー微生物への対抗ともう1つの戦略ー2019

    • Author(s)
      橋詰茜,山中康如,笠原康裕,大舘智志,幸田良介,中島啓裕
    • Organizer
      日本生態学会第66回全国大会(ポスター発表)
    • Related Report
      2018 Research-status Report
  • [Presentation] 自動撮影カメラが拓く新しい哺乳類研究ー現場の勘と統計的思考の協働ー2019

    • Author(s)
      中島啓裕
    • Organizer
      日本哺乳類学会2018年度大会(奨励賞受賞講演)
    • Related Report
      2018 Research-status Report
  • [Remarks] 中島啓裕のホームページ

    • URL

      http://hp.brs.nihon-u.ac.jp/~dobutsu/

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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