CAREER: THE IMPACTS OF ANTHROPOGENICALLY-DERIVED SUBSIDIES ON FRESHWATER ECOSYSTEMS

职业：人为补贴对淡水生态系统的影响

• 批准号: 1941555
• 负责人: Krista Capps
• 金额: $ 118.49万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1941555&HistoricalAwards=false
• 关键词: CAREER; IMPACTS; ANTHROPOGENICALLY; DERIVED; SUBSIDIES

Rivers and streams provide important services, such as drinking water, fisheries, and recreational opportunities. Yet, the integrity of rivers and streams throughout the globe is compromised by pollution from aging and obsolete wastewater infrastructure. Currently, there is limited understanding of how human waste affects stream communities and ecosystem processes. The project will integrate field observations, experiments, and modelling, to advance our understanding of how rivers and streams are affected by wastewater infrastructure, and will provide new insights into interactions between civil and environmental engineering and ecosystem science. This CAREER award will support the training and development of high school students, graduate students, and a postdoctoral researcher. Understanding the spatial and temporal variation in the factors influencing riverine structure and function is essential to predict how fresh waters will respond to continued anthropogenic change. This CAREER award will couple field observations with field- and lab-based experiments and modelling, to examine: 1) spatial and temporal variation in the quality, quantity, and relative volume of wastewater entering river systems, 2) the effects of wastewater on seasonal and annual patterns of metabolic processes flowing waters, 3) the influence of interactions between wastewater and ambient nutrient concentrations on trophic relationships and on the tissue and mineralization stoichiometry of consumers, and 4) the extent to which consumers transport wastewater-derived energy and elements to resource-limited systems within river networks. The award will integrate wastewater discharge into a spatial subsides framework to support more accurate predictions for how wastewater structures aquatic communities and alters biogeochemical processes in river networks. Moreover, the award will generate the data needed to compare seasonal and annual patterns in riverine metabolic processes in large, tropical rivers. The research will also test how flexibility in the trophic and stoichiometric traits of consumers governs the role they play in biogeochemical cycling under variable environmental conditions. Educational modules and service-learning projects in introductory environmental science and advanced ecology courses will be developed. High school students will be trained in stream ecology and provided internships with the local government and freshwater conservation organizations. Additionally, this research will have important management implications, as governments throughout the globe are challenged to fix wastewater effects on water quality, human health, and biodiversity.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.

河流和小溪提供重要的服务，如饮用水，渔业和娱乐机会。然而，整个地球仪的河流和溪流的完整性受到老化和过时的废水基础设施污染的损害。目前，人们对人类废物如何影响河流社区和生态系统过程的了解有限。该项目将整合实地观察，实验和建模，以促进我们对河流和溪流如何受到废水基础设施影响的理解，并将为土木和环境工程与生态系统科学之间的相互作用提供新的见解。这个职业奖将支持高中生，研究生和博士后研究员的培训和发展。了解影响河流结构和功能的因素的空间和时间变化对于预测淡水沃茨将如何对持续的人为变化作出反应至关重要。这个职业奖将结合实地观察与实地和实验室为基础的实验和建模，以检查：1）进入河流系统的废水的质量、数量和相对体积的空间和时间变化，2）废水对流动沃茨的代谢过程的季节和年度模式的影响，3）废水和环境营养物浓度之间的相互作用对营养关系以及对消费者的组织和矿化化学计量的影响，以及4）消费者将源自废水的能量和元素输送到河流网络内资源有限的系统的程度。该奖项将把废水排放纳入一个空间沉降框架，以支持更准确地预测废水如何构成水生群落并改变河流网络中的生物地球化学过程。此外，该奖项将产生所需的数据，以比较大型热带河流河流代谢过程的季节和年度模式。这项研究还将测试消费者的营养和化学计量特征的灵活性如何在可变的环境条件下控制他们在生态地球化学循环中发挥的作用。将在环境科学和高级生态学入门课程中开发教育单元和服务学习项目。高中生将接受溪流生态学培训，并在当地政府和淡水保护组织实习。此外，这项研究将具有重要的管理意义，因为地球仪各国政府都面临着解决废水对水质、人类健康和生物多样性影响的挑战。该奖项反映了NSF的法定使命，并被认为值得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来支持。

项目成果

Effects of stream intermittency on minnow (Leuciscidae) and darter (Percidae) trophic dynamics in an agricultural watershed

河流间歇性对农业流域内的米诺鱼（Leuciscidae）和鲈鱼（Percidae）营养动态的影响

• DOI: 10.1111/eff.12649
• 发表时间: 2022
• 期刊: Ecology of Freshwater Fish
• 影响因子: 1.8
• 作者: Fallon, Christine E.;Capps, Krista A.;Freeman, Mary C.;Smith, Chelsea R.;Golladay, Stephen W.
• 通讯作者: Golladay, Stephen W.

Assessing the Socio-Environmental Risk of Onsite Wastewater Treatment Systems to Inform Management Decisions

• DOI: 10.1021/acs.est.0c03909
• 发表时间: 2020-12-01
• 期刊: ENVIRONMENTAL SCIENCE & TECHNOLOGY
• 影响因子: 11.4
• 作者: Capps, Krista A.;McDonald, Jacob M. Bateman;Parsons, Rebecca
• 通讯作者: Parsons, Rebecca

Disparities between the Demand for On-Site Wastewater Treatment Systems and Treatment Options for Septage

现场废水处理系统的需求与污泥处理方案之间的差异

• DOI: 10.1021/acsestwater.1c00221
• 发表时间: 2021
• 期刊: ACS ES&T Water
• 作者: Capps, Krista A.;Gaur, Nandita;Callahan, Timothy;Orrego, Alexandra;Bloyer, David;Higgs, Keith;Johnson, Daniel
• 通讯作者: Johnson, Daniel

Reshaping the Tree of Life: ecological implications of evolution in the Anthropocene

• DOI: 10.1002/fee.2434
• 发表时间: 2021-11-15
• 期刊: FRONTIERS IN ECOLOGY AND THE ENVIRONMENT
• 影响因子: 10.3
• 作者: Capps, Krista A.;Chapman, Susan;Potts, Daniel L.
• 通讯作者: Potts, Daniel L.

Assessing relationships between onsite wastewater treatment system maintenance patterns and system-level variables

• DOI: 10.1016/j.scitotenv.2023.161851
• 发表时间: 2023-02-01
• 期刊: SCIENCE OF THE TOTAL ENVIRONMENT
• 影响因子: 9.8
• 作者: Connelly，Kyle N.;Wenger，Seth J.;Capps，Krista A.
• 通讯作者: Capps，Krista A.