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Impacts of environmental change and human activity on marine predators in the Northern Bering Sea

Research Project

Project/Area Number 16H02705
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Environmental impact assessment
Research InstitutionNational Institute of Polar Research

Principal Investigator

TAKAHASHI Akinori  国立極地研究所, 研究教育系, 准教授 (40413918)

Co-Investigator(Kenkyū-buntansha) 塩見 こずえ  国立極地研究所, 研究教育系, 助教 (50756947)
國分 亙彦  国立極地研究所, 研究教育系, 助教 (90580324)
綿貫 豊  北海道大学, 水産科学研究院, 教授 (40192819)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥36,140,000 (Direct Cost: ¥27,800,000、Indirect Cost: ¥8,340,000)
Fiscal Year 2019: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2018: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2017: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2016: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Keywords海洋生態 / 海洋保全 / 環境変動 / 動物行動 / バイオロギング
Outline of Final Research Achievements

To assess the impact of environmental change and human activity on seabirds in the northern Bering Sea, we conducted an ecological study of breeding seabirds on St. Lawrence Island, Alaska, during 2016-2019. We found that breeding successes of seabirds were markedly decreased in 2018-2019, in years of historic low winter sea-ice extent in the Bering Sea. A mass mortality of adult birds (especially thick-billed murres) was also observed in the summer of 2018. We also found that nutritional stress levels of seabirds were higher in years of lower winter sea-ice extent, suggesting that sea-ice decline affected the seabird foraging though changes in the regional food web. Foraging ranges of seabirds, determined by bird-borne GPS loggers, were larger than the shipping avoidance area set around the island, which raised the concern about possible effects of increasing ship traffic on breeding seabirds in this region.

Academic Significance and Societal Importance of the Research Achievements

ベーリング海北部では近年顕著な環境変動が見られ、また温暖化にともなう人間活動の増加が見込まれているにも関わらず、海鳥などの生態系の高次捕食動物に対する環境影響評価の知見は限られていた。また、海鳥は北極域で暮らす先住民にとって主要な食料源となっていることから、環境変動による海鳥への影響の評価は国際的な社会的関心が高い。近年の海氷の減少が海鳥の繁殖や栄養状態に負の影響を与えていることを明らかにした本研究の成果は、北極域の環境変動にともなう生態系への影響評価に対して学術的・社会的に大きく貢献するものである。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (26 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (5 results) Journal Article (8 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 8 results,  Open Access: 5 results,  Acknowledgement Compliant: 2 results) Presentation (13 results) (of which Int'l Joint Research: 11 results,  Invited: 2 results)

  • [Int'l Joint Research] University of Alaska Fairbanks(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] McGill University(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Alaska Fairbanks(米国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Breeding together, wintering an ocean apart: foraging ecology of the northern Bering Sea thick-billed and common murres in years of contrasting sea-ice conditions2020

    • Author(s)
      Takahashi A、Thiebot JB、Will AP、Tsukamoto S、Merkel B、Kitaysky A
    • Journal Title

      Polar Science

      Volume: in press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Translating Marine Animal Tracking Data into Conservation Policy and Management2019

    • Author(s)
      1. Hays GC, ..., Takahashi A, ..., Sequeira AMM (47 other authors).
    • Journal Title

      Trends in Ecology & Evolution

      Volume: 34 Issue: 5 Pages: 459-473

    • DOI

      10.1016/j.tree.2019.01.009

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wintering in the Western Subarctic Pacific Increases Mercury Contamination of Red-Legged Kittiwakes2019

    • Author(s)
      Fleishman AB、Orben RA、Kokubun N、Will A、Paredes R、Ackerman JT、Takahashi A、Kitaysky AS、Shaffer SA
    • Journal Title

      Environmental Science & Technology

      Volume: 53 Issue: 22 Pages: 13398-13407

    • DOI

      10.1021/acs.est.9b03421

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The formation of foraging aggregations in a highly social seabird, the thick-billed murre (Uria lomvia), at small and large scales2018

    • Author(s)
      Brisson-Curadeau Emile、Gilchrist H. Grant、Takahashi Akinori、Dutilleul Pierre、Elliott Kyle H.
    • Journal Title

      Marine Biology

      Volume: 165 Issue: 10

    • DOI

      10.1007/s00227-018-3432-x

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Inter-annual climate variability affects foraging behavior and nutritional state of thick-billed murres breeding in the southeastern Bering Sea2018

    • Author(s)
      N. Kokubun, A. Takahashi, R. Paredes, R. C. Young, N. N. Sato, T. Yamamoto, D. M. Kikuchi, E. Kitaiskaia, M. Ito, Y. Watanuki, A. Will, R. Lauth, M. D. Romano, A. S. Kitaysky
    • Journal Title

      Marine Ecology Progress Series

      Volume: 593 Pages: 195-208

    • DOI

      10.3354/meps12365

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Persistent annual migration patterns of a specialist seabird2018

    • Author(s)
      Orben RA、Kokubun N、Fleishman AB、Will AP、Yamamoto T、Shaffer SA、Paredes R、Takahashi A、Kitaysky AS
    • Journal Title

      Marine Ecology Progress Series

      Volume: 593 Pages: 231-245

    • DOI

      10.3354/meps12459

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differential responses of seabirds to environmental variability over two years in the continental shelf and oceanic habitats of southeastern Bering Sea2016

    • Author(s)
      Yamamoto T, Kokubun N, Kikuchi DM, Sato N, Takahashi A, Will A, Kitaysky AS, Watanuki Y
    • Journal Title

      Biogeosciences

      Volume: 13 Issue: 8 Pages: 2405-2414

    • DOI

      10.5194/bg-13-2405-2016

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Foraging segregation of two congeneric diving seabird species (common and thick-billed murres) breeding on St. George Island, Bering Sea2016

    • Author(s)
      Kokubun N, Yamamoto T, Sato N, Watanuki Y, Will A, Kitaysky AS, Takahashi A
    • Journal Title

      Biogeosciences

      Volume: 13 Issue: 8 Pages: 2579-2591

    • DOI

      10.5194/bg-13-2579-2016

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Winter migration and carry-over effects in planktivorous and piscivorous seabirds breeding on St. Lawrence Island.2020

    • Author(s)
      Will, A., Thiebot, J.B., Takahashi, A., Kitaysky, A
    • Organizer
      Alaska Marine Science Symposium 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diets of Plankton-eating Auklets Reveal Consequences of Recent Oceanographic Changes in the Alaskan Subarctic.2020

    • Author(s)
      Pinchuk, A., Will, A., Takahashi, A., Thiebot, J.B., Kuletz, K., Kitaysky, A
    • Organizer
      Alaska Marine Science Symposium 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Responses of breeding seabirds to recent changes in sea ice conditions in the Northern Bering Sea.2020

    • Author(s)
      Takahashi, A., Will, A., Thiebot, J.B., Tsukamoto, S., Kitaysky, A
    • Organizer
      Sixth International Symposium on Arctic Research
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Breeding together, wintering oceans apart: divergent migratory movements of thick-billed and common murres from St Lawrence Island, Northern Bering Sea.2019

    • Author(s)
      Takahashi, A., Thiebot, J.B., Will, A., Tsukamoto, S., Kitaysky, A
    • Organizer
      The Tenth Symposium on Polar Science
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北極の環境変動に対する海鳥の応答2019

    • Author(s)
      高橋晃周
    • Organizer
      日本バイオロギング研究会第15回シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] No fluffy cakes: Thick-billed murre die off 2018.2019

    • Author(s)
      Will, A., Thiebot, J.B., Toolie M, Shoogukwruk P, Tsukamoto S, Pillars W, Takahashi, A., Kitaysky, A.
    • Organizer
      Pacific Seabird Group Annual Meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea ice loss and the post-breeding migration of planktivorous Arctic seabirds.2019

    • Author(s)
      Will, A., Thiebot, J.B., Takahashi, A., Kitaysky, A.
    • Organizer
      Alaska Marine Science Symposium 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] No fluffy cakes: St. Lawrence Island seabirds respond to historic low winter sea ice.2019

    • Author(s)
      Will, A., Thiebot, J.B., Takahashi, A., Kitaysky, A.
    • Organizer
      Alaska Marine Science Symposium 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sea ice loss and Arctic planktivorous seabird’s post-breeding migration.2018

    • Author(s)
      Will, A., Thiebot, J.B., Takahashi, A., Kitaysky, A.
    • Organizer
      The 9th Symposium on Polar Science
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Following least auklets (Aethia pusilla) into the winter2018

    • Author(s)
      Will A, Thiebot JB, Takahashi A, Kitaysky A
    • Organizer
      Alaska Marine Science Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ベーリング海北部セントローレンス島における海鳥類の採餌行動2017

    • Author(s)
      高橋晃周、Thiebot JB、Will A、Kitaysky A
    • Organizer
      第64回日本生態学会
    • Place of Presentation
      早稲田大学、東京
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Japan's seabird research activity in the Arctic2017

    • Author(s)
      Takahashi A
    • Organizer
      The Circumpolar Seabird Expert Group 21st Annual Meeting
    • Place of Presentation
      Hotel Hafnia, Torshavn, Faroe Islands
    • Year and Date
      2017-03-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Foraging and migratory movements of seabirds from St Lawrence Island, Northern Bering Sea2017

    • Author(s)
      Takahashi A, Will A, Thiebot JB, Tsukamoto S, Kitaysky A
    • Organizer
      8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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