Shannon L. Speir
Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.
Assistant Professor
Also affiliated: University of Notre Dame (2019–2026); Texas Christian University (2014); University of Alabama (2021–2022); University of Arkansas System (2017–2026)
Faculty Researcher
Research Areas
Biomedical Subjects
Links
Biography and Research Information
OverviewAI-generated summary
Shannon L. Speir's research focuses on understanding biogeochemical processes within agricultural watersheds, particularly concerning nutrient transport and water quality. Her work investigates how factors such as storm size, hydrologic modification, and land management practices like cover cropping influence the movement of nitrogen and phosphorus. Speir has examined concentration-discharge relationships across various temporal scales and explored the origins of power-law analyses used in this field. She also studies the production of nitrous oxide in river sediments, considering the interactive effects of temperature and carbon availability.
Speir's research extends to the chemical composition of agricultural watersheds, including silicon concentrations and their implications for management and downstream water quality. She has also published on the benefits of studying highly modified agricultural streams for biogeochemical insights. Her scholarship metrics include an h-index of 12, with 75 total publications and 468 citations. Speir has received $50,000 in federal funding from the NSF as PI for the I-Corps program, focusing on peptoid microsphere-coated surfaces for wound healing.
Her collaborations include work with Kathleen Cutting and Karessa De la Paz at the Arkansas Agricultural Experiment Station, and Alana Strauss at the University of Arkansas at Little Rock, with whom she has co-authored multiple publications. She also collaborates with Ibón Tamayo at the University of Arkansas at Fayetteville.
Metrics
- h-index: 12
- Publications: 76
- Citations: 493
Selected Publications
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Quantifying the Impact of Winter Cover Crops on Sediment Export in Small Agricultural Watersheds and Beyond (2026)
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Nutrients and Discharge in the Brush Creek Watershed in Northwest Arkansas (2026)
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Nutrient and Discharge in the Brush Creek Watershed in Northwest Arkansas (2026)
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AIMS Talladega Absorbance Spectral Fingerprint at Watershed Outlet (AIMS_SE_TAL_SCAN) (2026)
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AIMS Paint Rock Continuous Water Quality at Watershed Outlet Data (AIMS_SE_PRF_EXOS) (2026)
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AIMS Shambley Creek Field Physicochemistry Data and Field Notes (AIMS_SE_WHR_YSIS) (2026)
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AIMS Shambley Creek Continuous Water Quality at Watershed Outlet Data (AIMS_SE_WHR_EXOS) (2026)
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AIMS Talladega Continuous Water Quality at Watershed Outlet Data (AIMS_SE_TAL_EXOS) (2026)
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AIMS Paint Rock Field Physicochemistry Data and Field Notes (AIMS_SE_PRF_YSIS) (2026)
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AIMS Talladega Field Physicochemistry Data and Field Notes (AIMS_SE_TAL_YSIS) (2026)
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AIMS Paint Rock Dissolved Organic Carbon Data (AIMS_SE_PRF_DOCS) (2026)
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AIMS Talladega Dissolved Organic Carbon Data (AIMS_SE_TAL_DOCS) (2026)
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AIMS Paint Rock Field Discharge Data (AIMS_SE_PRF_DISL) (2026)
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AIMS Shambley Creek nutrient data (AIMS_SE_WHR_NUTR) (2026)
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AIMS Paint Rock nutrient data (AIMS_SE_PRF_NUTR) (2026)
Federal Grants 1 $50,000 total
I-Corps: Peptoid microsphere-coated surfaces for use in treatment of wound healing
Collaboration Network
Top Collaborators
- Temperature and carbon availability interact to enhance nitrous oxide production via denitrification in alluvial plain river sediments
- Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the midwestern U.S.
- CrowdWaterSens: An uncertainty-aware crowdsensing approach to groundwater contamination estimation
- Catchment-scale thawing and greening decreases long-term nitrogen export in NE Greenland
- Transport and retention of microplastic fibers in streams are impacted by benthic algae, discharge, and substrate
Showing 5 of 7 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
- Hydrologic, biogeochemical, microbial, and macroinvertebrate responses to network expansion, contraction, and disconnection across headwater stream networks with distinct physiography in Alabama, USA
Showing 5 of 6 shared publications
- Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export
- 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
- Uncertainty in streamflow measurements significantly impacts estimates of downstream nitrate export
- 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
- Catchment concentration–discharge relationships across temporal scales: A review
- 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
- Effects of climate and winter cover crops on nutrient loss in agricultural watersheds in the midwestern U.S.
- 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
- Transport and retention of microplastic fibers in streams are impacted by benthic algae, discharge, and substrate
- 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
- 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
- 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
- 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
- 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
- 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
- Catchment concentration–discharge relationships across temporal scales: A review
- Revisiting the Origins of the Power‐Law Analysis for the Assessment of Concentration‐Discharge Relationships
- Catchment concentration–discharge relationships across temporal scales: A review
- Revisiting the Origins of the Power‐Law Analysis for the Assessment of Concentration‐Discharge Relationships
- Catchment concentration–discharge relationships across temporal scales: A review
- Revisiting the Origins of the Power‐Law Analysis for the Assessment of Concentration‐Discharge Relationships
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