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Joel P Stokdyk

Joel Stokdyk is a Research Biologist with the Laboratory for Infectious Disease and the Environment (LIDE) with the Upper Midwest Water Science Center.

RESEARCH SUMMARY
I study the occurrence, fate and transport, and health effects of pathogens in the environment at LIDE. My research includes analysis of viruses, bacteria, and protozoa to characterize pathogen occurrence combined with microbial source tracking to identify pathogen sources. Studies address public health and resource management aspects of groundwater and surface water by assessing the factors that contribute to contamination and by characterizing relationships among pathogens, microbial indicators, and human health risk. Projects include collaboration with public agencies and other researchers to study public and private well water, recreational water, drinking water, and other environmental matrices.

EXPERTISE
Analysis of human and agricultural zoonotic pathogens and microbial source tracking markers in environmental matrices
Quantitative polymerase chain reaction (qPCR) and associated lab quality control
Large-volume sampling techniques for analysis of viruses and bacteria in water
Enteric viral, bacterial, and protozoan pathogens in groundwater

Education and Certifications

  • 2014. MS, Natural Resources. University of Wisconsin-Stevens Point
     

  • 2012. BS, Soil and Land Management with minor in Geographic Information Systems and Spatial Analysis; Wetland Science Certificate. University of Wisconsin-Stevens Point

Science and Products

Image of the pathogen icon from the LIDE logo

About LIDE

The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
By
Upper Midwest Water Science Center
About LIDE

About LIDE

The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
Learn More
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Filter Total Items: 26

A multi-marker assessment of sewage contamination in streams using human-associated indicator bacteria, human-specific viruses, and pharmaceuticals A multi-marker assessment of sewage contamination in streams using human-associated indicator bacteria, human-specific viruses, and pharmaceuticals

Human sewage contaminates waterways, delivering excess nutrients, pathogens, chemicals, and other toxic contaminants. Contaminants and various sewage indicators are measured to monitor and assess water quality, but these analytes vary in their representation of sewage contamination and the inferences about water quality they support. We measured the occurrence and concentration of...
Authors
Peter L. Lenaker, Matthew A. Pronschinske, Steven R. Corsi, Joel P. Stokdyk, Hayley Olds, Deborah K. Dila, Sandra L. McLellan
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources

We used quantitative microbial risk assessment to estimate ingestion risk for intI1, erm(B), sul1, tet(A), tet(W), and tet(X) in private wells contaminated by human and/or livestock feces. Genes were quantified with five human-specific and six bovine-specific microbial source-tracking (MST) markers in 138 well-water samples from a rural Wisconsin county. Daily ingestion risk (probability...
Authors
Tucker R. Burch, Joel P. Stokdyk, Lisa Durso, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Des Moines water trails: Health risk from waterborne pathogens during recreational water use Des Moines water trails: Health risk from waterborne pathogens during recreational water use

No abstract available.
Authors
Tucker R. Burch, Joel P. Stokdyk, Aaron D. Firnstahl, Sarah Opelt, Rachel M. Cook, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Study design and methods of the Wells and Enteric disease Transmission (WET) Trial, a randomised controlled trial Study design and methods of the Wells and Enteric disease Transmission (WET) Trial, a randomised controlled trial

Introduction: The burden of disease attributed to drinking water from private wells is not well characterised. The Wells and Enteric disease Transmission trial is the first randomised controlled trial to estimate the burden of disease that can be attributed to the consumption of untreated private well water. To estimate the attributable incidence of gastrointestinal illness (GI)...
Authors
Debbie Lee, Donna Denno, Phil Tarr, Jingwei Wu, Joel P. Stokdyk, Mark A. Borchardt, Heather Murphy
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Creek and quarry water quality at Pipestone National Monument and pilot study of pathogen detection methods in waterfall mist at Winnewissa Falls, Pipestone, Minnesota, 2018–19 Creek and quarry water quality at Pipestone National Monument and pilot study of pathogen detection methods in waterfall mist at Winnewissa Falls, Pipestone, Minnesota, 2018–19

Pipestone National Monument is a 301-acre site sacred to many Native American Tribes, providing cultural exhibits and walking trails to Pipestone Creek, Winnewissa Falls, and historical pipestone quarries for numerous visitors each year. However, the Minnesota Pollution Control Agency has determined turbidity and fecal coliform bacteria occur in Pipestone Creek in high enough numbers to...
Authors
Aliesha L. Krall, Kerensa A. King, Victoria G. Christensen, Joel P. Stokdyk, Barbara C. Scudder Eikenberry, S. A. Stevenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources

Antimicrobial resistance is a growing public health problem that requires an integrated approach among human, agricultural, and environmental sectors. However, few studies address all three components simultaneously. We investigated the occurrence of five antibiotic resistance genes (ARGs) and the class 1 integron gene (intI1) in private wells drawing water from a vulnerable aquifer...
Authors
Tucker R. Burch, Joel P. Stokdyk, Aaron D. Firnstahl, Burney Kieke Jr., Rachel M. Cook, Sarah Opelt, Sue Spencer, Lisa Durso, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Non-USGS Publications**

Stokdyk, J., and Herrman, K., 2016, Effects of Frangula alnus on soil microbial communities and biogeochemical processes in Wisconsin forests: Plant and Soil v. 409, n. 1-2, p. 65-75. doi: 10.1007/s11104-016- 2916-z
Stokdyk, J., and Herrman, K., 2014, Short-term impacts of Frangula alnus litter on forest soil properties: Water, Air, and Soil Pollution v. 225, n. 6, p. 1-9. doi: 10.1007/s11270-014-2000-3

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Science and Products

Image of the pathogen icon from the LIDE logo

About LIDE

The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
By
Upper Midwest Water Science Center
About LIDE

About LIDE

The Laboratory for Infectious Disease and the Environment (LIDE) is an interagency collaborative effort between the U.S. Geological Survey and the U.S. Department of Agriculture-Agricultural Research Service. As a research laboratory, LIDE’s roles in research-based collaborations range from developing research questions and experimental designs to analyzing samples and interpreting data.
Learn More
No Result Found
No results found.
Filter Total Items: 26

A multi-marker assessment of sewage contamination in streams using human-associated indicator bacteria, human-specific viruses, and pharmaceuticals A multi-marker assessment of sewage contamination in streams using human-associated indicator bacteria, human-specific viruses, and pharmaceuticals

Human sewage contaminates waterways, delivering excess nutrients, pathogens, chemicals, and other toxic contaminants. Contaminants and various sewage indicators are measured to monitor and assess water quality, but these analytes vary in their representation of sewage contamination and the inferences about water quality they support. We measured the occurrence and concentration of...
Authors
Peter L. Lenaker, Matthew A. Pronschinske, Steven R. Corsi, Joel P. Stokdyk, Hayley Olds, Deborah K. Dila, Sandra L. McLellan
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources Quantitative microbial risk assessment for ingestion of antibiotic resistance genes from private wells contaminated by human and livestock fecal sources

We used quantitative microbial risk assessment to estimate ingestion risk for intI1, erm(B), sul1, tet(A), tet(W), and tet(X) in private wells contaminated by human and/or livestock feces. Genes were quantified with five human-specific and six bovine-specific microbial source-tracking (MST) markers in 138 well-water samples from a rural Wisconsin county. Daily ingestion risk (probability...
Authors
Tucker R. Burch, Joel P. Stokdyk, Lisa Durso, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Des Moines water trails: Health risk from waterborne pathogens during recreational water use Des Moines water trails: Health risk from waterborne pathogens during recreational water use

No abstract available.
Authors
Tucker R. Burch, Joel P. Stokdyk, Aaron D. Firnstahl, Sarah Opelt, Rachel M. Cook, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Study design and methods of the Wells and Enteric disease Transmission (WET) Trial, a randomised controlled trial Study design and methods of the Wells and Enteric disease Transmission (WET) Trial, a randomised controlled trial

Introduction: The burden of disease attributed to drinking water from private wells is not well characterised. The Wells and Enteric disease Transmission trial is the first randomised controlled trial to estimate the burden of disease that can be attributed to the consumption of untreated private well water. To estimate the attributable incidence of gastrointestinal illness (GI)...
Authors
Debbie Lee, Donna Denno, Phil Tarr, Jingwei Wu, Joel P. Stokdyk, Mark A. Borchardt, Heather Murphy
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Creek and quarry water quality at Pipestone National Monument and pilot study of pathogen detection methods in waterfall mist at Winnewissa Falls, Pipestone, Minnesota, 2018–19 Creek and quarry water quality at Pipestone National Monument and pilot study of pathogen detection methods in waterfall mist at Winnewissa Falls, Pipestone, Minnesota, 2018–19

Pipestone National Monument is a 301-acre site sacred to many Native American Tribes, providing cultural exhibits and walking trails to Pipestone Creek, Winnewissa Falls, and historical pipestone quarries for numerous visitors each year. However, the Minnesota Pollution Control Agency has determined turbidity and fecal coliform bacteria occur in Pipestone Creek in high enough numbers to...
Authors
Aliesha L. Krall, Kerensa A. King, Victoria G. Christensen, Joel P. Stokdyk, Barbara C. Scudder Eikenberry, S. A. Stevenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources

Antimicrobial resistance is a growing public health problem that requires an integrated approach among human, agricultural, and environmental sectors. However, few studies address all three components simultaneously. We investigated the occurrence of five antibiotic resistance genes (ARGs) and the class 1 integron gene (intI1) in private wells drawing water from a vulnerable aquifer...
Authors
Tucker R. Burch, Joel P. Stokdyk, Aaron D. Firnstahl, Burney Kieke Jr., Rachel M. Cook, Sarah Opelt, Sue Spencer, Lisa Durso, Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Non-USGS Publications**

Stokdyk, J., and Herrman, K., 2016, Effects of Frangula alnus on soil microbial communities and biogeochemical processes in Wisconsin forests: Plant and Soil v. 409, n. 1-2, p. 65-75. doi: 10.1007/s11104-016- 2916-z
Stokdyk, J., and Herrman, K., 2014, Short-term impacts of Frangula alnus litter on forest soil properties: Water, Air, and Soil Pollution v. 225, n. 6, p. 1-9. doi: 10.1007/s11270-014-2000-3

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

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