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Review and development of best practices for toxicity tests with dreissenid mussels Review and development of best practices for toxicity tests with dreissenid mussels
Since their introduction to North America in the 1980s, research to develop effective control tools for invasive mussels (Dreissena polymorpha and D. rostriformis bugensis) has been ongoing across various research institutions using a range of testing methods. Inconsistencies in experimental methods and reporting present challenges for comparing data, repeating experiments, and applying...
Authors
Diane L. Waller, Sherri Pucherelli, Matthew T. Barbour, Samantha Tank, Matthew Meulemans, Jeremy K. Wise, Angelique Dahlberg, David C. Aldridge, Renata Claudi, W. Gregory Cope, Patricia L. Gillis, Donna Kashian, Denise A. Mayer, Kelly A. Stockton-Fiti, Wai Hing Wong
Assessing environmental oil spill based on fluorescence images of water samples and deep learning Assessing environmental oil spill based on fluorescence images of water samples and deep learning
Measuring oil concentration in the aquatic environment is essential for determining the potential exposure, risk, or injury for oil spill response and natural resource damage assessment. Conventional analytical chemistry methods require samples to be collected in the field, shipped, and processed in the laboratory, which is also rather time-consuming, laborious, and costly. For rapid...
Authors
D. P. Liu, Ming Liu, Guangyu Sun, Zhiqian Zhou, Duolin Wang, Fei He, Jiaxin Li, Jiacheng Xie, Ryan Gettler, Eric Brunson, Jeffery A. Steevens, Dong Xu
New capabilities in MT3D-USGS for simulating unsaturated-zone heat transport New capabilities in MT3D-USGS for simulating unsaturated-zone heat transport
Changes in climate and land use will alter groundwater heat transport dynamics in the future. These changes will in turn affect watershed processes (e.g., nutrient cycling) as well as watershed characteristics (e.g., distribution and persistence of cold-water habitat). Thus, groundwater flow and heat transport models at watershed scales that can characterize and quantify thermal impacts...
Authors
Eric D. Morway, Daniel T. Feinstein, Randall J. Hunt, Richard W. Healy
A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park
We trapped, anesthetized, and fit 16 female feral swine (Sus scrofa) with Global Positioning System (GPS) collars in Great Smoky Mountains National Park (GRSM) to develop predictive summer and winter models for more effective population control efforts. Given the highly diverse habitat and topography in GRSM and the spatial extent of our dataset, we employed Step Selection Function (SSF)...
Authors
Frances E. Buderman, Patrick J. Helm, Joseph D. Clark, Ryan H. Williamson, Joseph G. Yarkovich, Jennifer M. Mullinax
Assessing potential effects of changes in water use in the middle Carson River Basin with a numerical groundwater-flow model, Eagle, Dayton, and Churchill Valleys, west-central Nevada Assessing potential effects of changes in water use in the middle Carson River Basin with a numerical groundwater-flow model, Eagle, Dayton, and Churchill Valleys, west-central Nevada
During the economic boom of the mid part of the first decade of the 2000s in northwestern Nevada, municipal and housing growth increased use of the water resources of this semi-arid region. In 2008, when the economy slowed, new housing development stopped, and immediate pressure on groundwater resources abated. The U.S. Geological Survey, in cooperation with the Bureau of Reclamation...
Authors
Eric D. Morway, Susan G. Buto, Richard G. Niswonger, Justin L. Huntington
Ticks harbor and excrete chronic wasting disease prions Ticks harbor and excrete chronic wasting disease prions
Chronic wasting disease (CWD) is a fatal neurodegenerative disease caused by infectious prions (PrPCWD) affecting cervids. Circulating PrPCWD in blood may pose a risk for indirect transmission by way of hematophagous ectoparasites acting as mechanical vectors. Cervids can carry high tick infestations and exhibit allogrooming, a common tick defense strategy between conspecifics. Ingestion...
Authors
H. N. Inzalaco, F. Bravo-Risi, R. Morales, D. P. Walsh, D. J. Storm, J. A. Pedersen, Wendy Christine Turner, S. S. Lichtenbergh
Flushing time variability in a short, low-inflow estuary Flushing time variability in a short, low-inflow estuary
Flushing time, the time scale for exchange and mixing between embayed and oceanic waters in an estuary, plays an integral role in determining water quality and aquatic ecosystem health. Here, we investigated the spatiotemporal variability of flushing times throughout Morro Bay, a short, low-inflow estuary (LIE) on the California coast, using a calibrated and validated hydrodynamic model...
Authors
Mohsen Taherkhani, Sean Vitousek, Ryan K. Walter, Jennifer O’Leary, Amid P. Khodadoust
Deep root activity overprints weathering of petrogenic organic carbon in shale Deep root activity overprints weathering of petrogenic organic carbon in shale
The oxidation of organic carbon in sedimentary bedrock (petrogenic OC, OCpetro) is increasingly recognized as a potential source of CO2 to the atmosphere. Recent studies provide evidence for the mobilization and oxidation of OCpetro in sedimentary bedrock during rock weathering. However, the mechanisms and rates remain uncertain, particularly where overlying soils and vegetation drive
Authors
Alison K. Tune, Jennifer L. Druhan, Corey Lawrence, Daniella M. Rempe
Stream restoration milestones: Monitoring scales determine successes and failures Stream restoration milestones: Monitoring scales determine successes and failures
Urban stream restoration is growing globally, but there is much to learn from successes, failures, and evaluating tradeoffs in restoration practices. Significant time and resources have been invested towards restoring the structure and function of urban ecosystems and understanding and slowing the drivers of degradation. However, the rapid pace of urbanization and its effects on urban...
Authors
Sujay S. Kaushal, Megan L. Fork, Robert J. Hawley, Kristina G. Hopkins, Blanca Rios-Touma, Allison H. Roy
Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA
Climate change is altering species’ range limits and transforming ecosystems. For example, warming temperatures are leading to the range expansion of tropical, cold-sensitive species at the expense of their cold-tolerant counterparts. In some temperate and subtropical coastal wetlands, warming winters are enabling mangrove forest encroachment into salt marsh, which is a major regime...
Authors
Remi Bardou, Michael Osland, Steven B. Scyphers, Christine C. Shepard, Karen E. Aerni, Jahson B. Alemu, Robert Crimian, Richard Day, Nicholas Enwright, Laura Feher, Sarah L. Gibbs, Kiera O’Donnell, Savannah H. Swinea, Kalaina Thorne, Sarit Truskey, Anna R. Armitage, Ronald J. Baker, Joshua L. Breithaupt, Kyle C. Cavanaugh, Just Cebrian, Karen Cummins, Donna J. Devlin, Jacob Doty, William L. Ellis, Ilka C. Feller, Christopher A. Gabler, Yiyang Kang, David A. Kaplan, John Paul Kennedy, Ken Krauss, Margaret Lamont, Kam-biu Liu, Melinda Martinez, Ashley M. Matheny, Giovanna M. McClenachan, Karen L. McKee, Irving A. Mendelssohn, Thomas C. Michot, Christopher J. Miller, Jena A. Moon, Ryan P. Moyer, James A. Nelson, Richard O’Connor, James W. Pahl, Jonathan L. Pitchford, C. Edward Proffitt, Tracy Quirk, Kara R. Radabaugh, Whitney A. Scheffel, Delbert L. Smee, Caitlin M. Snyder, Eric Sparks, Kathleen M. Swanson, William C. Vervaeke, Carolyn A. Weaver, Jonathan A Willis, Erik S. Yando, Qiang Yao, A. Randall Hughes
Stream corridor sediment budget for watershed sediment source apportionment for the forested Little Fork River, Minnesota Stream corridor sediment budget for watershed sediment source apportionment for the forested Little Fork River, Minnesota
No abstract available.
Authors
Faith A. Fitzpatrick, Shelby P. Sterner, Anna C. Baker, Sam Soderman, Karen B. Gran, Andy Kasun, Mike Kennedy, Phil Norvitch, Jesse Anderson, Matt Guntzmann
Assessment and characterization of ephemeral stream channel stability in the Grand Valley, Colorado, 2018-22 Assessment and characterization of ephemeral stream channel stability in the Grand Valley, Colorado, 2018-22
The purpose of this study is to provide information regarding the stability of ephemeral streams on the north side of the Grand Valley, Colorado. The ungaged ephemeral streams in this semiarid region are of particular interest because (1) the underlying bedrock geology, Mancos Shale, is a sedimentary rock deposit that has been identified as a major contributor of salinity to the Colorado...
Authors
Joel William Homan