S
Shannon L. Speir Data-verified
Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.
Assistant Professor
faculty
12 h-index
74 pubs
447 cited
Research Areas
Links
Biography and Research Information
OverviewAI-generated summary
Shannon L. Speir investigates biogeochemical processes within agricultural watersheds, focusing on the transport and mobilization of nutrients like nitrogen and phosphorus. Her work examines how factors such as storm size, hydrologic modification, and the use of cover crops influence water quality. Speir also studies the interactions between temperature and carbon availability in sediments, which impact nitrous oxide production via denitrification.
Her research explores the relationships between concentration and discharge across various temporal scales and revisits analytical methods for assessing these relationships. Speir is also interested in the implications of silicon concentrations for watershed management and downstream water quality. She has published 50 papers, with 424 citations, and holds an h-index of 12. She has received a $50,000 NSF grant for work related to peptoid microsphere-coated surfaces for wound healing treatment.
Speir collaborates with researchers from the Arkansas Agricultural Experiment Station and the University of Arkansas at Little Rock. Her current work is supported by an active lab website and a recent NSF grant.
Metrics
- h-index: 12
- Publications: 74
- Citations: 447
Selected Publications
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Effect of traditional road salts and beet-based alternatives on leaf litter decomposition (2026)
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Watershed‐scale controls outweigh local crossing effects on sediment loss from unpaved roads (2026)
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Comment on essd-2025-559 (2026)
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Twenty‐Four Year Record Reveals Increasing Discharge in Tributaries to a Key Drinking Water Resource (2025)
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Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA (2025)
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Small- and large-scale patches shape benthic microbial community structure and function in streams at the subcontinental scale (2025)
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Lines in the landscape (2025)
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Investigating Spatial and Temporal Nitrogen Dynamics in a Forested Headwater Stream Over the Course of an Annual Drying Event (2025)
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Transport and retention of microplastic fibers in streams are impacted by benthic algae, discharge, and substrate (2025)
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Mismatches between ammonium and nitrate losses at the field and watershed scales suggest contrasting controls in two agricultural watersheds (2025)
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Confirming the Primacy of Light Controlling Ammonium Removal in Response to Biofilm Colonization and Shade Using Experimental Streams (2025)
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Revisiting the Freshwater Imperative: Harnessing Team Science to Face Emerging Challenges to Freshwaters (2024)
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Catchment-scale thawing and greening decreases long-term nitrogen export in NE Greenland (2024)
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Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the midwestern U.S. (2023)
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Catchment concentration–discharge relationships across temporal scales: A review (2023)
Federal Grants 1 $50,000 total
NSF
PI
Jun 2021 - May 2022
I-Corps: Peptoid microsphere-coated surfaces for use in treatment of wound healing
Collaboration Network
Top Collaborators
Jennifer L. Tank
University of Notre Dame (US)
19 shared publications
- Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds
- Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales
- The Case for Studying Highly Modified Agricultural Streams: Farming for Biogeochemical Insights
- Extending vegetative cover with cover crops influenced phosphorus loss from an agricultural watershed
- Temperature and carbon availability interact to enhance nitrous oxide production via denitrification in alluvial plain river sediments
Showing 5 of 19 shared publications
Todd V. Royer
Indiana University Bloomington (US)
8 shared publications
- Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds
- Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales
- The Case for Studying Highly Modified Agricultural Streams: Farming for Biogeochemical Insights
- Extending vegetative cover with cover crops influenced phosphorus loss from an agricultural watershed
- Silicon concentrations and stoichiometry in two agricultural watersheds: implications for management and downstream water quality
Showing 5 of 8 shared publications
Ursula H. Mahl
University of Notre Dame (US)
8 shared publications
- Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds
- Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales
- Extending vegetative cover with cover crops influenced phosphorus loss from an agricultural watershed
- Silicon concentrations and stoichiometry in two agricultural watersheds: implications for management and downstream water quality
- Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the midwestern U.S.
Showing 5 of 8 shared publications
Arial J. Shogren
University of Alabama (US)
8 shared publications
- Catchment concentration–discharge relationships across temporal scales: A review
- Revisiting the Origins of the Power‐Law Analysis for the Assessment of Concentration‐Discharge Relationships
- Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export
- Transport and retention of microplastic fibers in streams are impacted by benthic algae, discharge, and substrate
- Environmental context differentially influences nitrogen and phosphorus uptake in streams
Showing 5 of 8 shared publications
Matt T. Trentman
University of Notre Dame (US)
6 shared publications
- Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales
- Extending vegetative cover with cover crops influenced phosphorus loss from an agricultural watershed
- Silicon concentrations and stoichiometry in two agricultural watersheds: implications for management and downstream water quality
- Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the midwestern U.S.
- Silicon Concentrations and Stoichiometry in Two Agricultural Watersheds: Implications for Management and Downstream Water Quality
Showing 5 of 6 shared publications
Lienne R. Sethna
Science Museum of Minnesota (US)
5 shared publications
- Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales
- The Case for Studying Highly Modified Agricultural Streams: Farming for Biogeochemical Insights
- Silicon concentrations and stoichiometry in two agricultural watersheds: implications for management and downstream water quality
- Mismatches between ammonium and nitrate losses at the field and watershed scales suggest contrasting controls in two agricultural watersheds
- Silicon Concentrations and Stoichiometry in Two Agricultural Watersheds: Implications for Management and Downstream Water Quality
Abagael N. Pruitt
University of Notre Dame (US)
5 shared publications
- Mismatches between ammonium and nitrate losses at the field and watershed scales suggest contrasting controls in two agricultural watersheds
- Confirming the Primacy of Light Controlling Ammonium Removal in Response to Biofilm Colonization and Shade Using Experimental Streams
- Effect of traditional road salts and beet-based alternatives on leaf litter decomposition
- Fluvial Denitrification Rates in an Agricultural River and Its Tributary Vary Due To Size and Season
- Effect of traditional road salts and beet-based alternatives on leaf litter decomposition
Alana Strauss
University of Arkansas at Little Rock
5 shared publications
In database
- Nutrient loads across Fayetteville, Arkansas
- Sediment Transport in the Brush Creek Watershed in Northwest Arkansas
- Nutrient loads across Fayetteville, Arkansas
- Twenty‐Four Year Record Reveals Increasing Discharge in Tributaries to a Key Drinking Water Resource
- Watershed‐scale controls outweigh local crossing effects on sediment loss from unpaved roads
Kathleen Cutting
University of Arkansas at Fayetteville
5 shared publications
In database
- Nutrient loads across Fayetteville, Arkansas
- Sediment Transport in the Brush Creek Watershed in Northwest Arkansas
- Nutrient loads across Fayetteville, Arkansas
- Watershed‐scale controls outweigh local crossing effects on sediment loss from unpaved roads
- Effect of traditional road salts and beet-based alternatives on leaf litter decomposition
C. Nathan Jones
University of Alabama (US)
4 shared publications
- Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Investigating Spatial and Temporal Nitrogen Dynamics in a Forested Headwater Stream Over the Course of an Annual Drying Event
Carla L. Atkinson
University of Alabama (US)
4 shared publications
- Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Comment on essd-2025-559
Michelle A. Wolford
University of Alabama (US)
4 shared publications
- Catchment concentration–discharge relationships across temporal scales: A review
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Comment on essd-2025-559
Kaci Zarek
Cornell University (US)
4 shared publications
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Investigating Spatial and Temporal Nitrogen Dynamics in a Forested Headwater Stream Over the Course of an Annual Drying Event
- Comment on essd-2025-559
Delaney Peterson
University of Alabama (US)
4 shared publications
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Investigating Spatial and Temporal Nitrogen Dynamics in a Forested Headwater Stream Over the Course of an Annual Drying Event
- Comment on essd-2025-559
Stephen Plont
University of Alabama (US)
4 shared publications
- Using Physiography to Understand Stream Network Expansion and Contraction Across Spatiotemporal Scales
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
- Investigating Spatial and Temporal Nitrogen Dynamics in a Forested Headwater Stream Over the Course of an Annual Drying Event
- Comment on essd-2025-559
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