Brian Tangen
Brian Tangen is an Ecologist with the USGS Northern Prairie Wildlife Research Center and works at the Lincoln, Nebraska duty station.
I began my professional career processing and identifying aquatic invertebrates and conducting a wide variety of field work for Northern Prairie's aquatics lab. I have worked in a variety of roles at Northern Prairie performing research focused on carbon and greenhouse gas cycling in wetland systems, wetland hydrology, wetland management, and effects of climate- and land-use change.
Professional Experience
Ecologist, USGS Northern Prairie Wildlife Research Center
Education and Certifications
M.S., Biological Sciences, North Dakota State University, 2001
B.A., Biology, Valley City State University, 1999
Affiliations and Memberships*
Society of Wetland Scientists
Science and Products
Filter Total Items: 20
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Monitoring and modeling wetland chloride concentrations in relationship to oil and gas development Monitoring and modeling wetland chloride concentrations in relationship to oil and gas development
Extraction of oil and gas via unconventional methods is becoming an important aspect of energy production worldwide. Studying the effects of this development in countries where these technologies are being widely used may provide other countries, where development may be proposed, with some insight in terms of concerns associated with development. A fairly recent expansion of...
Authors
Max Post van der Burg, Brian A. Tangen
Brine contamination to aquatic resources from oil and gas development in the Williston Basin, United States Brine contamination to aquatic resources from oil and gas development in the Williston Basin, United States
The Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States and the provinces of Manitoba and Saskatchewan in Canada, has been a leading domestic oil and gas producing region for more than one-half a century. Currently, there are renewed efforts to develop oil and gas resources from deep geologic formations, spurred by advances in recovery...
Authors
Tara L. Chesley-Preston, James L. Coleman, Robert A. Gleason, Seth S. Haines, Karen E. Jenni, Timothy L. Nieman, Zell E. Peterman, Max Post van der Burg, Todd M. Preston, Bruce D. Smith, Brian A. Tangen, Joanna N. Thamke
Greenhouse gas fluxes of grazed and hayed wetland catchments in the U.S. Prairie Pothole Ecoregion Greenhouse gas fluxes of grazed and hayed wetland catchments in the U.S. Prairie Pothole Ecoregion
Wetland catchments are major ecosystems in the Prairie Pothole Region (PPR) and play an important role in greenhouse gases (GHG) flux. However, there is limited information regarding effects of land-use on GHG fluxes from these wetland systems. We examined the effects of grazing and haying, two common land-use practices in the region, on GHG fluxes from wetland catchments during 2007 and...
Authors
Raymond G. Finocchiaro, Brian A. Tangen, Robert A. Gleason
Assessment of sediments in the riverine impoundments of national wildlife refuges in the Souris River Basin, North Dakota Assessment of sediments in the riverine impoundments of national wildlife refuges in the Souris River Basin, North Dakota
Accelerated sedimentation of reservoirs and riverine impoundments is a major concern throughout the United States. Sediments not only fill impoundments and reduce their effective life span, but they can reduce water quality by increasing turbidity and introducing harmful chemical constituents such as heavy metals, toxic elements, and nutrients. U.S. Fish and Wildlife Service national...
Authors
Brian A. Tangen, Murray K. Laubhan, Robert A. Gleason
Assessment of water-quality data from Long Lake National Wildlife Refuge, North Dakota--2008 through 2012 Assessment of water-quality data from Long Lake National Wildlife Refuge, North Dakota--2008 through 2012
ong Lake National Wildlife Refuge, located in south-central North Dakota, is an important habitat for numerous migratory birds and waterfowl, including several threatened or endangered species. The refuge is distinguished by Long Lake, which is approximately 65 square kilometers and consists of four primary water management units. Water levels in the Long Lake units are maintained by low...
Authors
Brian A. Tangen, Raymond G. Finocchiaro, Robert A. Gleason, Michael J. Rabenberg, Charles F. Dahl, Mike J. Ell
A model for evaluating effects of climate, water availability, and water management on wetland impoundments--a case study on Bowdoin, Long Lake, and Sand Lake National Wildlife Refuges A model for evaluating effects of climate, water availability, and water management on wetland impoundments--a case study on Bowdoin, Long Lake, and Sand Lake National Wildlife Refuges
Many wetland impoundments managed by the U.S. Fish and Wildlife Service (USFWS) National Wildlife Refuge System throughout the northern Great Plains rely on rivers as a primary water source. A large number of these impoundments currently are being stressed from changes in water supplies and quality, and these problems are forecast to worsen because of projected changes to climate and...
Authors
Brian A. Tangen, Robert A. Gleason, John F. Stamm
Non-USGS Publications**
Tangen, B.A., Butler, M.G., and Ell, M.J., 2003, Weak correspondence between macroinvertebrate assemblages and land use in Prairie Pothole Region wetlands, USA: Wetlands, v. 23, p. 104–115.
**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
Filter Total Items: 20
No Result Found
Filter Total Items: 45
Monitoring and modeling wetland chloride concentrations in relationship to oil and gas development Monitoring and modeling wetland chloride concentrations in relationship to oil and gas development
Extraction of oil and gas via unconventional methods is becoming an important aspect of energy production worldwide. Studying the effects of this development in countries where these technologies are being widely used may provide other countries, where development may be proposed, with some insight in terms of concerns associated with development. A fairly recent expansion of...
Authors
Max Post van der Burg, Brian A. Tangen
Brine contamination to aquatic resources from oil and gas development in the Williston Basin, United States Brine contamination to aquatic resources from oil and gas development in the Williston Basin, United States
The Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States and the provinces of Manitoba and Saskatchewan in Canada, has been a leading domestic oil and gas producing region for more than one-half a century. Currently, there are renewed efforts to develop oil and gas resources from deep geologic formations, spurred by advances in recovery...
Authors
Tara L. Chesley-Preston, James L. Coleman, Robert A. Gleason, Seth S. Haines, Karen E. Jenni, Timothy L. Nieman, Zell E. Peterman, Max Post van der Burg, Todd M. Preston, Bruce D. Smith, Brian A. Tangen, Joanna N. Thamke
Greenhouse gas fluxes of grazed and hayed wetland catchments in the U.S. Prairie Pothole Ecoregion Greenhouse gas fluxes of grazed and hayed wetland catchments in the U.S. Prairie Pothole Ecoregion
Wetland catchments are major ecosystems in the Prairie Pothole Region (PPR) and play an important role in greenhouse gases (GHG) flux. However, there is limited information regarding effects of land-use on GHG fluxes from these wetland systems. We examined the effects of grazing and haying, two common land-use practices in the region, on GHG fluxes from wetland catchments during 2007 and...
Authors
Raymond G. Finocchiaro, Brian A. Tangen, Robert A. Gleason
Assessment of sediments in the riverine impoundments of national wildlife refuges in the Souris River Basin, North Dakota Assessment of sediments in the riverine impoundments of national wildlife refuges in the Souris River Basin, North Dakota
Accelerated sedimentation of reservoirs and riverine impoundments is a major concern throughout the United States. Sediments not only fill impoundments and reduce their effective life span, but they can reduce water quality by increasing turbidity and introducing harmful chemical constituents such as heavy metals, toxic elements, and nutrients. U.S. Fish and Wildlife Service national...
Authors
Brian A. Tangen, Murray K. Laubhan, Robert A. Gleason
Assessment of water-quality data from Long Lake National Wildlife Refuge, North Dakota--2008 through 2012 Assessment of water-quality data from Long Lake National Wildlife Refuge, North Dakota--2008 through 2012
ong Lake National Wildlife Refuge, located in south-central North Dakota, is an important habitat for numerous migratory birds and waterfowl, including several threatened or endangered species. The refuge is distinguished by Long Lake, which is approximately 65 square kilometers and consists of four primary water management units. Water levels in the Long Lake units are maintained by low...
Authors
Brian A. Tangen, Raymond G. Finocchiaro, Robert A. Gleason, Michael J. Rabenberg, Charles F. Dahl, Mike J. Ell
A model for evaluating effects of climate, water availability, and water management on wetland impoundments--a case study on Bowdoin, Long Lake, and Sand Lake National Wildlife Refuges A model for evaluating effects of climate, water availability, and water management on wetland impoundments--a case study on Bowdoin, Long Lake, and Sand Lake National Wildlife Refuges
Many wetland impoundments managed by the U.S. Fish and Wildlife Service (USFWS) National Wildlife Refuge System throughout the northern Great Plains rely on rivers as a primary water source. A large number of these impoundments currently are being stressed from changes in water supplies and quality, and these problems are forecast to worsen because of projected changes to climate and...
Authors
Brian A. Tangen, Robert A. Gleason, John F. Stamm
Non-USGS Publications**
Tangen, B.A., Butler, M.G., and Ell, M.J., 2003, Weak correspondence between macroinvertebrate assemblages and land use in Prairie Pothole Region wetlands, USA: Wetlands, v. 23, p. 104–115.
**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.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government