Award Abstract # 2025982
LTER: Comparative Study of a Suite of Lakes in Wisconsin

NSF Org: DEB
Division Of Environmental Biology
Recipient: UNIVERSITY OF WISCONSIN SYSTEM
Initial Amendment Date: March 10, 2021
Latest Amendment Date: March 12, 2025
Award Number: 2025982
Award Instrument: Continuing Grant
Program Manager: Robyn Smyth
rsmyth@nsf.gov
 (703)292-2996
DEB
 Division Of Environmental Biology
BIO
 Directorate for Biological Sciences
Start Date: March 1, 2021
End Date: February 28, 2027 (Estimated)
Total Intended Award Amount: $7,680,000.00
Total Awarded Amount to Date: $6,511,384.00
Funds Obligated to Date: FY 2021 = $1,280,000.00
FY 2022 = $1,280,000.00

FY 2023 = $1,280,000.00

FY 2024 = $2,518,053.00

FY 2025 = $153,331.00
History of Investigator:
  • Emily Stanley (Principal Investigator)
    ehstanley@wisc.edu
  • Monica Turner (Co-Principal Investigator)
  • Paul Hanson (Co-Principal Investigator)
  • Steven Loheide (Co-Principal Investigator)
  • Grace Wilkinson (Co-Principal Investigator)
  • Corinna Gries (Former Co-Principal Investigator)
Recipient Sponsored Research Office: University of Wisconsin-Madison
21 N PARK ST STE 6301
MADISON
WI  US  53715-1218
(608)262-3822
Sponsor Congressional District: 02
Primary Place of Performance: Center for Limnology
680 N. Park St.
Madison
WI  US  53706-1413
Primary Place of Performance
Congressional District:
02
Unique Entity Identifier (UEI): LCLSJAGTNZQ7
Parent UEI:
NSF Program(s): LONG TERM ECOLOGICAL RESEARCH,
Capacity: Field Stations
Primary Program Source: 01002122DB NSF RESEARCH & RELATED ACTIVIT
01002223DB NSF RESEARCH & RELATED ACTIVIT

01002324DB NSF RESEARCH & RELATED ACTIVIT

01002425DB NSF RESEARCH & RELATED ACTIVIT

01002526DB NSF RESEARCH & RELATED ACTIVIT

01002627DB NSF RESEARCH & RELATED ACTIVIT
Program Reference Code(s): 1104, 1195, 9251
Program Element Code(s): 119500, 169Y00
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.074

ABSTRACT

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.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Adams, Hannah and Ye, Jane and Persaud, Bhaleka and Slowinski, Stephanie and Kheyrollah Pour, Homa and Van Cappellen, Philippe "Chlorophyll-a growth rates and related environmental variables in global temperate and cold-temperate lakes" Earth system science data , 2021 https://doi.org/10.5194/essd-2021-329 Citation Details
Arani, Babak M. S. and Carpenter, Stephen R. and Lahti, Leo and van Nes, Egbert H. and Scheffer, Marten "Exit time as a measure of ecological resilience" Science , v.372 , 2021 https://doi.org/10.1126/science.aay4895 Citation Details
Barta, Martha E. and Sass, Greg G. and Reed, Jeffrey R. and Cichosz, Thomas A. and Shultz, Aaron D. and Luehring, Mark and Feiner, Zachary S. "Lagging spawning and increasing phenological extremes jeopardize walleye ( Sander vitreus ) in northtemperate lakes" Limnology and Oceanography Letters , 2024 https://doi.org/10.1002/lol2.10383 Citation Details
Beal, Maxwell R. and OReilly, Bryan E. and Soley, Caitlin K. and Hietpas, Kaitlynn R. and Block, Paul J. "Variability of summer cyanobacteria abundance: can season-ahead forecasts improve beach management?" Lake and Reservoir Management , 2022 https://doi.org/10.1080/10402381.2022.2084799 Citation Details
Beal, Maxwell R.W. and O'Reilly, Bryan and Hietpas, Kaitlynn R. and Block, Paul "Development of a sub-seasonal cyanobacteria prediction model by leveraging local and global scale predictors" Harmful Algae , v.108 , 2021 https://doi.org/10.1016/j.hal.2021.102100 Citation Details
Beal, Maxwell_R_W and Özdoan, Mutlu and Block, Paul_J "A Machine Learning and Remote SensingBased Model for Algae Pigment and Dissolved Oxygen Retrieval on a Small Inland Lake" Water Resources Research , v.60 , 2024 https://doi.org/10.1029/2023WR035744 Citation Details
Beal, Maxwell R.W. and Wilkinson, Grace M. and Block, Paul J. "Large scale seasonal forecasting of peak season algae metrics in the Midwest and Northeast U.S." Water Research , v.229 , 2023 https://doi.org/10.1016/j.watres.2022.119402 Citation Details
Berg, Elizabeth and Kucharik, Christopher "The Dynamic Relationship between Air and Land Surface Temperature within the Madison, Wisconsin Urban Heat Island" Remote Sensing , v.14 , 2022 https://doi.org/10.3390/rs14010165 Citation Details
Berg, Maureen and Goudeau, Danielle and Olmsted, Charles and McMahon, Katherine D. and Yitbarek, Senay and Thweatt, Jennifer L. and Bryant, Donald A. and Eloe-Fadrosh, Emiley A. and Malmstrom, Rex R. and Roux, Simon "Host population diversity as a driver of viral infection cycle in wild populations of green sulfur bacteria with long standing virus-host interactions" The ISME Journal , v.15 , 2021 https://doi.org/10.1038/s41396-020-00870-1 Citation Details
Berg, Stephanie M. and Peterson, Benjamin D. and McMahon, Katherine D. and Remucal, Christina K. "Spatial and Temporal Variability of Dissolved Organic Matter Molecular Composition in a Stratified Eutrophic Lake" Journal of Geophysical Research: Biogeosciences , v.127 , 2022 https://doi.org/10.1029/2021JG006550 Citation Details
Berg, Stephanie M. and Wammer, Kristine H. and Remucal, Christina K. "Dissolved Organic Matter Photoreactivity Is Determined by Its Optical Properties, Redox Activity, and Molecular Composition" Environmental Science & Technology , v.57 , 2023 https://doi.org/10.1021/acs.est.3c01157 Citation Details
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