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Long-term trends in bird communities: estimation using national birding records and hierarchical Bayesian modelling

Research Project

Project/Area Number 17K15057
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Conservation of biological resources
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

KATAYAMA Naoki  国立研究開発法人農業・食品産業技術総合研究機構, 農業環境研究部門, 主任研究員 (10631054)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords生物多様性保全 / 鳥類群集 / 個体数トレンド / 農業生態系 / 里山 / 鳥類 / 農地生態系 / TRIM / PGLS / 生物多様性 / 市民科学 / 保全 / 個体数変化 / トレンド推定 / 階層ベイズモデル / トレンド
Outline of Final Research Achievements

Several existing data including previous bird-survey data and field surveys were conducted to clarify the changing trends of Japanese terrestrial bird populations. (1) Analysis of existing data and field surveys in Ibaraki Prefecture (N-mixture model) suggested that the Greater Painted Snipe population has decreased by about 1/10 over the past 20 years and that one of the main reasons for this is the decrease in flooded fallow fields. (2) An analysis (TRIM) of Monitoring Site Project 1000 data showed that 47 common species have shown a declining trend over the 12 years 2009-2020. Of these, forested species showed a slight increase, while satoyama and open land species showed a decreasing trend. (3) The data compilation of the national birdwatching records has been progressed and data input has been completed for approximately 90% of the records. Further input and analysis will be carried out in the future.

Academic Significance and Societal Importance of the Research Achievements

農林業などの土地利用の変化にともなう生物多様性の変化傾向(トレンド)を定量化することで、生物多様性の現状を理解すると同時に、必要な保全管理策について理解を深めることができる。本研究は人口減少による農林業の衰退が生じている日本において、タマシギや里山性鳥類の個体数が減少していることを示し、彼らの個体数増加には遷移初期生息地を維持するための人為的介入が必要であることを明らかにした。欧米と比較して日本の生物多様性トレンドの定量化はこれまでほとんどなされておらず、COP15の自然共生社会の実現に向けて、国際的にもデータの不足しがちなアジアの貴重な知見の一つとなった。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Remarks (2 results)

  • [Int'l Joint Research] クイーンズランド大学(オーストラリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] クイーンズランド大学(オーストラリア)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Assessing farming practices that benefit biodiversity conservation in rice fields: past achievements and future challenges2020

    • Author(s)
      片山 直樹、馬場 友希、大久保 悟
    • Journal Title

      JAPANESE JOURNAL OF ECOLOGY

      Volume: 70 Issue: 3 Pages: 201

    • DOI

      10.18960/seitai.70.3_201

    • NAID

      130007959614

    • ISSN
      0021-5007, 2424-127X
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spatial and temporal associations between fallow fields and Greater Painted Snipe density in Japanese rice paddy landscapes2020

    • Author(s)
      Katayama Naoki、Odaya Yoshiya、Amano Tatsuya、Yoshida Hoshiko
    • Journal Title

      Agriculture, Ecosystems & Environment

      Volume: 295 Pages: 106892-106892

    • DOI

      10.1016/j.agee.2020.106892

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 全国規模の鳥類個体数トレンドから見 えてくるアンダーユースの影響2022

    • Author(s)
      片山直樹・藤田卓・植田睦之・天野達也
    • Organizer
      日本鳥学会2022年大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Agri-environmental schemes and farmland biodiversity indicators in Japan2022

    • Author(s)
      Naoki Katayama
    • Organizer
      30th meeting of the OECD Network for Farm-Level Analysis
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 農地における生物多様性保全のエビデンス2022

    • Author(s)
      片山 直樹
    • Organizer
      第69回日本生態学会大会. シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 農業活動と鳥類多様性の関係を多様なアプローチで探る2021

    • Author(s)
      片山 直樹
    • Organizer
      日本鳥学会2021年度大会 (黒田賞受賞講演)
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] エビデンスから考える有機農業と生物多様性の関係2021

    • Author(s)
      片山 直樹
    • Organizer
      第22回日本有機農業学会大会. セッション
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] データ活用の可能性①鳥類の種数・個体数と景観特性の解明およびトレンド推定2020

    • Author(s)
      片山 直樹
    • Organizer
      日本生態学会大会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 関東地方におけるタマシギ個体数の空間分布および経年変化に湛水休耕田が与える影響2019

    • Author(s)
      片山 直樹, 小田谷 義弥, 天野 達也, 吉田 保志子
    • Organizer
      日本鳥学会
    • Related Report
      2019 Research-status Report
  • [Remarks] 片山直樹のウェブページ

    • URL

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

    • Related Report
      2022 Annual Research Report
  • [Remarks]

    • URL

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

    • Related Report
      2021 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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