LTER: Comparative Study of a Suite of Lakes in Wisconsin

LTER：威斯康星州一系列湖泊的比较研究

• 批准号: 2025982
• 负责人: Emily Stanley
• 金额: $ 768万
• 依托单位: University of Wisconsin-Madison
• 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: 2021-03-01 至 2027-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2025982&HistoricalAwards=false
• 关键词: LTER; Comparative; Study; Suite; Lakes

Lakes are extraordinary ecosystems that provide societal benefits from recreation to food to clean and plentiful drinking water. But the same characteristics that draw us in leave lakes vulnerable to human activities that can damage these environments, and in some cases, cause large, abrupt, and undesirable ecological changes. The goal of the North Temperate Lakes Long-Term Ecological Research Program (NTL-LTER) is to understand how and why lakes change over time and determine the consequences of these changes. For 40 years, the NTL-LTER has studied two sets of Wisconsin lakes and their surrounding landscapes. One group of lakes is located in the rural, forested, and tourist-dominated Northern Highland Lake District in northern Wisconsin and the other is situated in the agricultural and urban landscape around Madison, Wisconsin’s state capitol. Studying these two distinct groups of lakes and being able to document changes occurring over several decades provides essential information about how different types of lakes in different settings are affected by phenomena such as shifting climate conditions, urban expansion, the arrival of invasive species, harmful algal blooms, or changes in environmental policies. These research activities, in turn, improve current understanding and management of lakes, benefitting anyone concerned with the future of the region, its freshwater resources, and the welfare of its residents. Results are also integrated into multiple K-12, undergraduate, graduate, and continuing education activities. The NTL-LTER program is committed to supporting diversity in science, and to outreach efforts that communicate scientific findings to interested individuals, non-governmental organizations, academics, and local, state, tribal and federal agencies. New research activities will build on NTL-LTER’s strong foundation of long-term observations and deep ecological understanding of north temperate lakes to address the overarching question: What are the causes and consequences of abrupt ecological change in lakes and their surrounding landscapes? Research activities are organized around a central framework of abrupt ecological change intended to reveal mechanisms that lead to abrupt ecological changes in lakes, and involve studies inspired by four focal questions: (1) What are lake phenological responses to a warmer and more variable climate that may lead to abrupt ecological change? (2) How do interactions of land use and long-term climate change affect urban aquatic ecosystems? (3) How do external drivers interact with aquatic invasive species to regulate water quality? And (4) What causes intentional ecosystem manipulations to persist, revert, or lead to novel states? These questions consider ecological changes from organisms to ecosystems and provide potent opportunities to test, modify, and expand hypotheses regarding the causes and consequences of abrupt ecological change that are broadly relevant across diverse ecosystems.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.

湖泊是非凡的生态系统，提供从娱乐到食物到清洁和充足的饮用水的社会效益。但是，吸引我们进入湖泊的同样特征也使湖泊容易受到人类活动的影响，这些活动可能会破坏这些环境，在某些情况下，会导致大规模、突然和不受欢迎的生态变化。北温带湖泊长期生态研究计划（NTL-LTER）的目标是了解湖泊如何以及为什么随着时间的推移而变化，并确定这些变化的后果。40年来，NTL-LTER研究了威斯康星州的两组湖泊及其周围的景观。一组湖泊位于北方威斯康星州的乡村、森林和游客为主的北方高地湖区，另一组湖泊位于威斯康星州麦迪逊周围的农业和城市景观中。研究这两组不同的湖泊，并能够记录几十年来发生的变化，提供了有关不同环境中不同类型湖泊如何受到气候条件变化，城市扩张，入侵物种，有害藻类大量繁殖或环境政策变化等现象影响的重要信息。这些研究活动，反过来，提高目前的理解和湖泊的管理，有利于任何人关心该地区的未来，其淡水资源，其居民的福利。结果也被集成到多个K-12，本科，研究生和继续教育活动。NTL-LTER计划致力于支持科学的多样性，并致力于将科学发现传达给感兴趣的个人，非政府组织，学术界以及地方，州，部落和联邦机构。新的研究活动将建立在NTL-LTER的长期观测和对北温带湖泊的深入生态理解的坚实基础上，以解决首要问题：湖泊及其周围景观的突然生态变化的原因和后果是什么？研究活动是围绕着一个中心框架的生态突变，旨在揭示机制，导致湖泊生态突变，并涉及研究的灵感来自四个焦点问题：（1）什么是湖泊物候响应一个温暖和更多变的气候，可能会导致生态突变？(2)土地利用和长期气候变化的相互作用如何影响城市水生生态系统？(3)外部驱动因素如何与水生入侵物种相互作用以调节水质？以及（4）是什么导致有意的生态系统操纵持续存在、恢复或导致新的状态？这些问题考虑了从有机体到生态系统的生态变化，并提供了测试、修改和扩展有关突发生态变化的原因和后果的假设的有力机会，这些假设在不同的生态系统中广泛相关。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

Impact of salinization on lake stratification and spring mixing

盐化对湖泊分层和泉水混合的影响

• DOI: 10.1002/lol2.10215
• 发表时间: 2021
• 期刊: Limnology and Oceanography Letters
• 影响因子: 7.8
• 作者: Ladwig, Robert;Rock, Linnea A.;Dugan, Hilary A.
• 通讯作者: Dugan, Hilary A.

Synergies Among Environmental Science Research and Monitoring Networks: A Research Agenda

• DOI: 10.1029/2020ef001631
• 发表时间: 2020-12
• 期刊: Earth's Future

Urban Warming Challenges Verification of Frost Advisories and Freeze Warnings in Madison, Wisconsin

城市变暖挑战威斯康星州麦迪逊市霜冻咨询和冰冻警告的验证

• DOI: 10.1175/waf-d-22-0164.1
• 发表时间: 2023
• 期刊: Weather and Forecasting
• 影响因子: 2.9
• 作者: Williamson, Meirah;Kucharik, Christopher J.
• 通讯作者: Kucharik, Christopher J.

Long‐term analysis of body condition reveals species coupling and the impacts of an invasion

对身体状况的长期分析揭示了物种耦合和入侵的影响

• DOI: 10.1002/ecs2.4592
• 发表时间: 2023
• 期刊: Ecosphere
• 影响因子: 2.7
• 作者: Martin, Benjamin E.;Vander Zanden, M. Jake
• 通讯作者: Vander Zanden, M. Jake

Large scale seasonal forecasting of peak season algae metrics in the Midwest and Northeast U.S.

• DOI: 10.1016/j.watres.2022.119402
• 发表时间: 2022-11
• 期刊: Water research
• 影响因子: 12.8
• 作者: M. Beal;G. Wilkinson;P. Block