CAREER:Functional diversity and ecosystem function provisioning by a guild of macrofaunal consumers in riverine ecosystems

职业:河流生态系统中大型动物消费者协会的功能多样性和生态系统功能供应

基本信息

  • 批准号:
    1942707
  • 负责人:
  • 金额:
    $ 113.51万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2021
  • 资助国家:
    美国
  • 起止时间:
    2021-01-01 至 2025-12-31
  • 项目状态:
    未结题

项目摘要

Freshwater ecosystems harbor incredible diversity and are experiencing more rapid biodiversity losses than any other ecosystem type. Despite this, little is known of the ecosystem services provided by these diverse ecological communities. Freshwater mussels are a highly imperiled, species-rich group of long-lived animals that play critical roles in maintaining water quality, and strongly impact freshwater ecosystems. While the ecological value of freshwater mussels is widely appreciated, their life history and role in the cycling of important nutrients is often overlooked. The density of these organisms is quite variable and can be very high. Variation in both mussel densities and characteristics make them ideal for studies of the impacts of animals on the cycling of limiting nutrients (i.e., nitrogen and phosphorus) in rivers. The proposed research will integrate the study of communities of freshwater mussels with investigations of critical ecosystem services. Research results will also be used to introduce ideas on the role of biodiversity in ecosystem function into the instruction of undergraduate courses, K-12 day camps, and after school programs.Using a combination of measurements across organismal, community, and ecosystem scales, this project will examine the interactive role of species traits and community composition in altering the fluxes and stores of energy and nutrients in river ecosystems. There has been great interest in recent years in ascertaining the direct roles of animals in creating biogeochemical hotspots, but their indirect role in microbially-mediated nutrient transformations and the trait-specific context-dependency of this has been overlooked. This research will examine how freshwater mussels influence nutrient transformations in streams by linking species traits, system-wide observations, and experimental manipulations to ask: 1) Do species traits (e.g. stoichiometry, body size) influence the role animals play in nutrient cycling and does this vary with environmental context? 2) Do animal aggregations significantly alter nutrient cycling and transformations via the active transfer of nutrients from the sediments to the water column? 3) Do species traits and population fluctuations influence nutrient cycling and transformations across space and time? This research will advance scientific understanding by investigating how community composition and coincidental trait diversity influences biogeochemical cycling over time and space while also informing conservation of a highly imperiled group.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
淡水生态系统拥有令人难以置信的多样性,并且正在经历比任何其他生态系统类型更快的生物多样性丧失。尽管如此,人们对这些不同生态群落提供的生态系统服务知之甚少。淡水贻贝是一种高度濒危、物种丰富的长寿动物,在维持水质方面发挥着关键作用,并对淡水生态系统产生重大影响。虽然淡水贻贝的生态价值得到了广泛的认可,但它们的生活史和在重要营养物质循环中的作用往往被忽视。这些生物体的密度变化很大,可能非常高。贻贝密度和特征的变化使它们成为研究动物对限制性营养物质循环的影响的理想选择(即,氮和磷)。拟议的研究将把对淡水贻贝群落的研究与对关键生态系统服务的调查结合起来。研究结果也将被用来介绍生物多样性在生态系统功能的作用到本科课程的教学,K-12日营,和课后programmes.Using跨有机体,社区和生态系统尺度的测量组合的想法,这个项目将检查物种性状和社区组成的相互作用,在改变河流生态系统中的能量和营养物质的通量和存储。近年来,人们对确定动物在创造生物地球化学热点中的直接作用产生了极大的兴趣,但它们在微生物介导的营养转化中的间接作用以及这种作用的特定性状背景依赖性却被忽视了。本研究将探讨淡水贻贝如何影响营养转换流通过连接物种性状,系统范围内的观察,和实验操作问:1)物种性状(例如化学计量,身体大小)影响动物在营养循环中发挥的作用,这是否与环境背景不同?2)动物聚集是否通过将营养物从沉积物主动转移到水柱而显著改变营养物循环和转化?3)物种特征和种群波动是否会影响养分循环和时空转换?该研究将通过调查群落组成和巧合性状多样性如何影响生物地球化学循环来促进科学理解,同时也为高度危险群体的保护提供信息。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Water availability and seasonality shape elemental stoichiometry across space and time
水的可用性和季节性塑造了跨空间和时间的元素化学计量
  • DOI:
    10.1002/eap.2842
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    5
  • 作者:
    Atkinson, Carla L.;Shogren, Arial J.;Smith, Chelsea R.;Golladay, Stephen W.
  • 通讯作者:
    Golladay, Stephen W.
Filter-feeders have differential bottom-up impacts on green and brown food webs
  • DOI:
    10.1007/s00442-020-04821-7
  • 发表时间:
    2021-01-02
  • 期刊:
  • 影响因子:
    2.7
  • 作者:
    Atkinson, Carla L.;Halvorson, Halvor M.;Waters, Matthew N.
  • 通讯作者:
    Waters, Matthew N.
Little clams with big potential: nutrient release by invasive Corbicula fluminea can exceed co-occurring freshwater mussel (Unionidae) assemblages
小蛤蜊潜力大:入侵性河蚬释放的营养物质可以超过同时存在的淡水贻贝(Unionidae)组合
  • DOI:
    10.1007/s10530-022-02792-9
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Hopper, Garrett W.;Buchanan, Jonathan K.;Sánchez González, Irene;Kubala, Megan E.;Bucholz, Jamie R.;Lodato, Matthew B.;Lozier, Jeffrey D.;Atkinson, Carla L.
  • 通讯作者:
    Atkinson, Carla L.
Effect of identity and richness on ecological function in aggregations of 2 similarly sized unionid mussel species
同一性和丰富度对两种大小相似的贻贝物种聚集体生态功能的影响
  • DOI:
    10.1086/714278
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    1.8
  • 作者:
    Nickerson, Zachary L.;Green, P. Anne;Shouse, Lauren N.;Atkinson, Carla L.
  • 通讯作者:
    Atkinson, Carla L.
Community patch dynamics governs direct and indirect nutrient recycling by aggregated animals across spatial scales
  • DOI:
    10.1111/1365-2435.13982
  • 发表时间:
    2022-01-12
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Atkinson, Carla L.;Forshay, Kenneth J.
  • 通讯作者:
    Forshay, Kenneth J.
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Carla Atkinson其他文献

Designing Low-Cost, Low-Power Circuits to Support Real-Time, Remote Distributed Environmental Sensing Using GSM Networks
设计低成本、低功耗电路以支持使用 GSM 网络的实时、远程分布式环境传感

Carla Atkinson的其他文献

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{{ truncateString('Carla Atkinson', 18)}}的其他基金

Collaborative Proposal: MSB-FRA: Scaling Climate, Connectivity, and Communities in Streams
合作提案:MSB-FRA:扩展流中的气候、连通性和社区
  • 批准号:
    2150626
  • 财政年份:
    2021
  • 资助金额:
    $ 113.51万
  • 项目类别:
    Standard Grant
Dimensions: Collaborative Research: Processes that Generate and Maintain Phylogenetic, Genetic, and Functional Diversity of the Freshwater Mussel Holobiont across Multiple Scales
维度:合作研究:跨多个尺度产生和维持淡水贻贝 Holobiont 系统发育、遗传和功能多样性的过程
  • 批准号:
    1831512
  • 财政年份:
    2018
  • 资助金额:
    $ 113.51万
  • 项目类别:
    Standard Grant

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  • 批准号:
    2317681
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    2024
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The mechanistic basis of slow-fast phenotypic diversity and its functional and evolutionary significance in social groups
慢-快表型多样性的机制基础及其在社会群体中的功能和进化意义
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