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Developing a global ecological model and its application to biodiversity conservation

Research Project

Project/Area Number 21K17913
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 64040:Social-ecological systems-related
Research InstitutionThe University of Tokyo

Principal Investigator

Takashina Nao  東京大学, 大学院新領域創成科学研究科, 助教 (30855242)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords生物多様性 / 生態系保全 / 数理モデル / 絶滅リスク / 保護区 / 生態系 / 絶滅 / 保全 / マクロ生態学 / グローバルスケール
Outline of Research at the Start

地球規模で生物多様性の減少が進行している。生物多様性の減少は,種や遺伝的多様性の損失のみならず,それに伴う外来種侵入や感染症リスク増大など甚大な社会・経済的損失をもたらす。生物多様性保全は喫緊の課題であり,そのための現状理解・将来予測が欠かせない。一方,昨今の地球規模に及ぶ生物多様性保全の要請を満足するような理論的枠組み構築は十分に達成されておらず,人間活動が生物多様性に及ぼす影響評価を限定的なものにする。本研究では地球規模の生物多様性保全を念頭に置きグローバル生態系モデルを構築する。またこれを応用し地球規模における生物絶滅リスク評価・予測をするための理論的枠組みを構築する。

Outline of Final Research Achievements

Habitat destruction is a global environmental problem, and discussions of its conservation at the broad spatial scales that macroecology addresses are indispensable. In this study, we applied the insights of macroecology to describe global ecological patterns and combined them with land use dynamics to investigate qualitative patterns of biodiversity loss that could occur on a global scale. Our results show that under a wide range of scenarios, marginal extinction risk increases with the progression of land use change. On the other hand, the results suggest that the introduction of protected areas can effectively reduce extinction risk, and that the earlier the introduction of protected areas, the greater the conservation benefit.

Academic Significance and Societal Importance of the Research Achievements

年々その甚大さを増す生物多様性の損失は持続可能な社会構築のために解決するべき最重要課題の一つである。本研究では,生態学の長年の研究対象である種の絶滅リスクを,土地利用動態と組み合わせることで社会生態システムの枠組みで議論し,その性質をマクロスケールにおいて包括的に捉えようという試みである。
本研究で得られた知見は,地球規模で進行する生物多様性損失に関するより深い洞察を与え,また保護区が生き物の絶滅リスクを減少させる効果を明示的に議論したことで生物多様性の保全戦略を考える上で重要な示唆を与えると考えられる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Remarks (1 results)

  • [Int'l Joint Research] Florida International University(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Canterbury(ニュージーランド)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A perspective on biodiversity data and applications for spatio-temporally robust spatial planning for area-based conservation2023

    • Author(s)
      Nao Takashina and Buntarou Kusumoto
    • Journal Title

      Discover Sustainability

      Volume: 4 Issue: 1

    • DOI

      10.1007/s43621-022-00116-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Species-range-size distributions: Integrating the effects of speciation, transformation, and extinction2022

    • Author(s)
      Nao Takashina, Michael Plank, C Jenkins, and Evan P Economo
    • Journal Title

      Ecology and Evolution

      Volume: 12 Issue: 1

    • DOI

      10.1002/ece3.8341

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Linking multi-level population dynamics: state, role, and population2022

    • Author(s)
      Nao Takashina
    • Journal Title

      PeerJ

      Volume: 10 Pages: e13315-e13315

    • DOI

      10.7717/peerj.13315

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Empowering voluntary approaches for environmental sustainability and resilient communities: a case study from Okinawa, Japan2022

    • Author(s)
      Tanaka Toshinori、Tiku Oscar、Takashina Nao
    • Journal Title

      Discover Sustainability

      Volume: 3 Issue: 1 Pages: 27-27

    • DOI

      10.1007/s43621-022-00094-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spillover-mediated harvesting competition: Effects of fishing ground configuration on fisheries targeting transboundary species2022

    • Author(s)
      Takashina Nao、Tanaka Toshinori
    • Journal Title

      Journal of Environmental Management

      Volume: 317 Pages: 115360-115360

    • DOI

      10.1016/j.jenvman.2022.115360

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spread the word: Sharing information on social media can stabilize conservation funding and improve ecological outcomes2022

    • Author(s)
      Nao Takashina, Hubert Cheung and Mieko Miyazawa
    • Journal Title

      Conservation Science and Practice

      Volume: In press Issue: 5

    • DOI

      10.1111/csp2.12857

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Idea paper: Improving forecasts of community composition with lightweight biodiversity monitoring across ecological and anthropogenic disturbance gradients2022

    • Author(s)
      Kass Jamie M., Takashina Nao, Friedman Nicholas R., Kusumoto Buntarou, Blair Mary E.
    • Journal Title

      Ecological Research

      Volume: n/a Issue: 4 Pages: 466-470

    • DOI

      10.1111/1440-1703.12294

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immediate and cumulative stresses associated with the multiscale impacts of ecotourism on ecological status and resilience2022

    • Author(s)
      Takashina Nao, Tanaka Toshinori
    • Journal Title

      Sustainability Science

      Volume: n/a Issue: 5 Pages: 2133-2142

    • DOI

      10.1007/s11625-022-01142-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Long-Term Conservation Effects of Protected Areas in Stochastic Population Dynamics2021

    • Author(s)
      Takashina Nao
    • Journal Title

      Frontiers in Ecology and Evolution

      Volume: 9 Pages: 672608-672608

    • DOI

      10.3389/fevo.2021.672608

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Remarks] Takashina Lab

    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2024-01-30  

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