BEST: Benthic Ecosystem Response to Changing Ice Cover in the Bering Sea

最佳:底栖生态系统对白令海冰盖变化的响应

基本信息

  • 批准号:
    0732668
  • 负责人:
  • 金额:
    $ 62.82万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-09-15 至 2007-11-30
  • 项目状态:
    已结题

项目摘要

Funds are provided to support a benthic-focused measurements program in the northern Bering Sea that extends and expands a twenty-year effort in that region. The northern benthic biological communities are known to provide food resources for benthic-feeding apex predators that include gray whales, bearded seals, walruses, and diving sea-ducks, all of which are used by subsistence-based communities along the Bering Sea coast. Previous work indicates that climate warming may change the present benthic-dominated northern Bering Sea ecosystem to one that is more pelagic and similar to the southern Bering Sea food web. The principal investigators will document benthic infaunal community composition and biomass as a means to determine key indicator species that should be monitored to evaluate climate change impacts on the Bering Sea ecosystem. In addition, they will undertake analyses of sediment indicators of status and trends in ecosystem health, including sediment grain size, oxygen demand, chlorophyll inventories, organic carbon content and stable carbon isotope ratios of sediment organic carbon, and inventories of atmospherically-derived, particle-reactive radionuclides (7Be) and clay-associated radionuclides (137Cs). All of these can be used as ecosystem indicators of recent particle deposition, sediment processing, and the overall fertility of overlying waters. They will integrate these new data with the extensive record for the region. These data will help interpret data collected by collaborators, with other funding, concerning marine mammals. It will also serve a important constraints on the models being developed for the region, both within the BEST and BSIERP programs.
提供资金支持在白令海北部开展以海底为重点的测量项目,该项目将在该地区开展20年的工作。众所周知,北部底栖生物群落为底栖顶级捕食者提供食物资源,包括灰鲸、胡须海豹、海象和潜水海鸭,所有这些都是白令海沿岸以生存为基础的群落所使用的。先前的研究表明,气候变暖可能会改变目前以底栖为主的白令海北部生态系统,使其更加远洋,类似于白令海南部的食物网。主要研究人员将记录底栖动物群落组成和生物量,作为确定应监测的关键指标物种的手段,以评估气候变化对白令海生态系统的影响。此外,他们将对生态系统健康状况和趋势的沉积物指标进行分析,包括沉积物粒度、需氧量、叶绿素清单、有机碳含量和沉积物有机碳的稳定碳同位素比率,以及大气衍生的颗粒反应性放射性核素(7Be)和粘土相关放射性核素(137Cs)清单。所有这些都可以作为近期颗粒沉积、沉积物加工和上覆水域整体肥力的生态系统指标。他们将把这些新数据与该地区的广泛记录结合起来。这些数据将有助于解释合作者在其他资助下收集的有关海洋哺乳动物的数据。在BEST和BSIERP计划中,它还将对正在为该地区开发的模型起到重要的约束作用。

项目成果

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Jacqueline Grebmeier其他文献

Jacqueline Grebmeier的其他文献

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{{ truncateString('Jacqueline Grebmeier', 18)}}的其他基金

RAPID: Bacterial Population Dynamics and Community Composition during the US Synoptic Arctic Survey
RAPID:美国北极天气观测期间的细菌种群动态和群落组成
  • 批准号:
    2237847
  • 财政年份:
    2022
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
Collaborative Research: The Distributed Biological Observatory (DBO)-A Change Detection Array in the Pacific Arctic Region
合作研究:分布式生物观测站(DBO)-太平洋北极地区的变化检测阵列
  • 批准号:
    1917469
  • 财政年份:
    2019
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant
Collaborative Research: The Distributed Biological Observatory (DBO)-A Change Detection Array in the Pacific Arctic Region
合作研究:分布式生物观测站(DBO)-太平洋北极地区的变化检测阵列
  • 批准号:
    1702456
  • 财政年份:
    2017
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
Collaborative Research: Formation and Persistence of Benthic Biological Hotspots in the Pacific Arctic
合作研究:北极太平洋底栖生物热点的形成和持续
  • 批准号:
    1603566
  • 财政年份:
    2016
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
Towards a Unifying Pan-Arctic Perspective: Concepts and Theories
走向统一的泛北极视角:概念和理论
  • 批准号:
    1638481
  • 财政年份:
    2016
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
Collaborative Research: The Distributed Biological Observatory (DBO)-A Change Detection Array in the Pacific Arctic Region
合作研究:分布式生物观测站(DBO)-太平洋北极地区的变化检测阵列
  • 批准号:
    1204082
  • 财政年份:
    2012
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant
United States Representation in the International Arctic Science Committee (IASC): 2011-2012
美国在国际北极科学委员会 (IASC) 的代表:2011-2012
  • 批准号:
    1103396
  • 财政年份:
    2011
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant
United States Representation in the International Arctic Science Committee (IASC)
美国在国际北极科学委员会(IASC)的代表
  • 批准号:
    0838929
  • 财政年份:
    2008
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant
United States Representation in the International Arctic Science Committee (IASC)
美国在国际北极科学委员会(IASC)的代表
  • 批准号:
    0755783
  • 财政年份:
    2007
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant
BEST: Benthic Ecosystem Response to Changing Ice Cover in the Bering Sea
最佳:底栖生态系统对白令海冰盖变化的响应
  • 批准号:
    0802290
  • 财政年份:
    2007
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Continuing Grant

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RAPID: Consequences of Rapid Environmental Change on Pelagic-to-Benthic Coupling by Sponges on the Continental USAs only Barrier Reef Ecosystem
快速:环境快速变化对美国大陆唯一的堡礁生态系统中的海绵与远洋与海底耦合的影响
  • 批准号:
    2347307
  • 财政年份:
    2023
  • 资助金额:
    $ 62.82万
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    Standard Grant
Can trait-based approaches inform habitat mapping of ecosystem function, process and services in benthic communities.
基于特征的方法能否为底栖群落的生态系统功能、过程和服务的栖息地绘图提供信息?
  • 批准号:
    2882715
  • 财政年份:
    2023
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Studentship
Species diversity and ecosystem function of benthic Cnidaria in the coastal area
沿海地区底栖刺胞动物物种多样性及生态系统功能
  • 批准号:
    23K14002
  • 财政年份:
    2023
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
CAREER: Leveraging benthic foraminiferal biogeography to recognize ecosystem responses to climate change and engage first-generation students in scientific inquiry
职业:利用底栖有孔虫生物地理学来认识生态系统对气候变化的反应,并让第一代学生参与科学探究
  • 批准号:
    2142904
  • 财政年份:
    2022
  • 资助金额:
    $ 62.82万
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SG: Evaluating synchrony among ecosystem productivity, benthic cyanobacterial growth, and toxin production dynamics in rivers
SG:评估河流中生态系统生产力、底栖蓝藻生长和毒素产生动态之间的同步性
  • 批准号:
    2042915
  • 财政年份:
    2021
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
Benthic ecosystem functioning and reactivity of sedimentary organic matter in the St. Lawrence Estuary
圣劳伦斯河口底栖生态系统功能和沉积有机质的反应性
  • 批准号:
    556538-2021
  • 财政年份:
    2021
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  • 项目类别:
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RAPID/Collaborative Research: Estuarine dam removal as an ecosystem disturbance: Examining the impacts of seawater intrusion on functional stability of benthic N cycle communities
快速/合作研究:河口大坝拆除作为一种生态系统干扰:研究海水入侵对底栖氮循环群落功能稳定性的影响
  • 批准号:
    2016250
  • 财政年份:
    2020
  • 资助金额:
    $ 62.82万
  • 项目类别:
    Standard Grant
RAPID/Collaborative Research: Estuarine dam removal as an ecosystem disturbance: Examining the impacts of seawater intrusion on functional stability of benthic N cycle communities
快速/合作研究:河口大坝拆除作为一种生态系统干扰:研究海水入侵对底栖氮循环群落功能稳定性的影响
  • 批准号:
    2016246
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    $ 62.82万
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Consequences of the response of Arctic biodiversity to climate change for benthic ecosystem functioning
北极生物多样性对气候变化的反应对底栖生态系统功能的影响
  • 批准号:
    2293664
  • 财政年份:
    2019
  • 资助金额:
    $ 62.82万
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CAREER: Mechanisms of bioturbation and ecosystem engineering by benthic infauna
职业:底栖动物的生物扰动和生态系统工程机制
  • 批准号:
    1844910
  • 财政年份:
    2019
  • 资助金额:
    $ 62.82万
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