Collaborative Research: TIDE: Legacy effects of long-term nutrient enrichment on recovery of saltmarsh ecosystems

合作研究：潮汐：长期营养富集对盐沼生态系统恢复的遗留影响

• 批准号: 1902712
• 负责人: Linda Deegan
• 金额: $ 133.79万
• 依托单位: Woodwell Climate Research Center, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-05-01 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1902712&HistoricalAwards=false
• 关键词: Collaborative; Research; TIDE; Legacy; effects

Coastal nutrient enrichment has resulted in saltmarshes being one of the most endangered ecosystems in the world. This over enrichment has compromised the ability of saltmarshes to provide key ecosystem services such as buffering coastal cities from storms, providing habitat for fish and shellfish, and mitigating climate impacts by storing carbon. The U.S. is investing millions of dollars to reduce nitrogen to coastal regions and embarking on large-scale saltmarsh restoration costing millions to billions of dollars to restore lost ecosystem services. Currently, it is unknown how quickly or if ecosystem services will return after nutrient inputs are cut. This research will provide insight into nitrogen pollution as a cause of marsh loss and the potential for ecosystem recovery with management strategies. There are several education efforts associated with this project that will train students. The project enhances education by developing high school curriculum on "Research and Resiliency: Investigating the Local Effects of Global Changes" in collaboration with the Massachusetts Audubon Society. A program for mid-career journalists about environmental science will also be developed. This project will facilitate sustainability and provide a science-based foundation for state and federal nutrient standards. This project will address how the effects of historical nutrient over enrichment influences the ability of marshes to recover their ability to provide ecosystem services. The project will use a combination of whole-ecosystem experimental manipulations, field measurements of key species, assays of genetic change, nutrient and carbon cycle processes, and food-web structure in six experimental sites to determine recovery trajectories. Researchers will measure changes in the decomposer community genetic diversity and activity by sequence amplicons of functional genes responsible for encoding key enzymes in the nitrogen cycling processes. The project will measure plant traits and genotypic diversity. The recovery of carbon and nitrogen cycling will be determined from marsh geomorphology, habitat-specific denitrification rates, nitrogen exchange with the open bay, and decomposition. Measuring the species diversity, abundance and productivity and stable isotope of invertebrates and fish will assess food web recovery.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.

沿海养分富集导致盐木是世界上最濒危的生态系统之一。这种过度富集损害了盐谷提供关键生态系统服务的能力，例如从风暴中缓冲沿海城市，为鱼类和贝类提供栖息地，并通过储存碳来减轻气候影响。美国正在投资数百万美元，以将氮减少到沿海地区，并进行大规模的盐摩尔修复，耗资数百万到数十亿美元，以恢复损失的生态系统服务。目前，尚不清楚生态系统服务在削减营养输入后是否会返回。这项研究将洞悉氮污染，这是沼泽损失的原因，以及通过管理策略恢复生态系统的潜力。与该项目相关的几项教育工作将培训学生。该项目通过开发有关“研究和弹性：研究全球变化的局部影响”的高中课程来增强教育，与马萨诸塞州奥杜邦协会合作。还将开发针对环境科学的中期记者计划。该项目将促进可持续性，并为州和联邦营养标准提供基础。该项目将解决历史养分对富集的影响如何影响沼泽恢复其提供生态系统服务能力的能力。该项目将在六个实验地点使用全生态系统实验操作，关键物种的现场测量，遗传变化，营养和碳循环过程的测定以及食品网络结构的结合，以确定恢复轨迹。研究人员将通过负责编码氮循环过程中的关键酶的功能基因的序列扩增子来衡量分解者群落多样性和活性的变化。该项目将衡量植物特征和基因型多样性。碳和氮循环的恢复将取决于沼泽地的地貌，栖息地特异性非硝化速率，与开放式海湾的氮交换以及分解。测量物种多样性，丰富性和生产力以及无脊椎动物和鱼类的稳定同位素将评估食品网络的回收率。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估审查标准来通过评估来获得支持的。

项目成果

The density of the Atlantic marsh fiddler crab (Minuca pugnax, Smith, 1870) (Decapoda: Brachyura: Ocypodidae) in its expanded range in the Gulf of Maine, USA

美国缅因湾大西洋沼泽招潮蟹（Minuca pugnax, Smith, 1870）（十足目：Brachura：Ocypodidae）在其扩展范围内的密度

• DOI: 10.1093/jcbiol/ruaa049
• 发表时间: 2020
• 期刊: Journal of Crustacean Biology
• 影响因子: 1.1
• 作者: Martínez-Soto, Kayla S;Johnson, David S
• 通讯作者: Johnson, David S

Characterizing a New England Saltmarsh with NASA G-LiHT Airborne Lidar

• DOI: 10.3390/rs11050509
• 发表时间: 2019-03
• 期刊: Remote. Sens.
• 作者: Ian Paynter;C. Schaaf;J. Bowen;L. Deegan;F. Peri;B. Cook

Connectivity: insights from the U.S. Long Term Ecological Research Network

• DOI: 10.1002/ecs2.3432
• 发表时间: 2021-05
• 期刊: Ecosphere
• 影响因子: 2.7
• 作者: David M Iwaniec;Michael N. Gooseff;K. Suding;David Samuel Johnson;Daniel C. Reed;Debra PC Peters;Byron J. Adams;J. E. Barrett;Brandon T. Bestelmeyer;Max C. N. Castorani;E. Cook;Melissa J. Davidson;P. Groffman;Niall P. Hanan;L. Huenneke;Pieter T. J. Johnson;Diane M. McKnight;Robert J. Miller;G. Okin;Daniel L. Preston;A. Rassweiler;Chris Ray;Osvaldo E. Sala;R. Schooley;T. Seastedt;M. Spasojevic;E. Vivoni

Are amphipods Orchestia grillus (Bosc, 1802) (Amphipoda: Talitridae) infected with the trematode Levinseniella byrdi (Heard, 1968) drawn to the light?

端足类Orchestia Grillus（Bosc，1802）（端足类：Talitridae）是否感染了吸虫Levinseniella byrdi（Heard，1968），会被光吸引？

• DOI: 10.1093/jcbiol/ruac017
• 发表时间: 2022
• 期刊: Journal of Crustacean Biology
• 影响因子: 1.1
• 作者: Johnson, David S

Resolving Estuarine Nitrogen Use by Phytoplankton Communities Using a Whole Ecosystem Tracer Approach

使用整个生态系统示踪方法解决河口浮游植物群落的氮利用问题

• DOI: 10.1007/s12237-021-00905-6
• 发表时间: 2021
• 期刊: Estuaries and Coasts
• 影响因子: 2.7
• 作者: Babitch, Jaylyn W.;Nelson, James A.;Deegan, Linda A.;Sullivan, Hillary;Stauffer, Beth A.
• 通讯作者: Stauffer, Beth A.