Estimation of lake-scale stock-recruitment models for Great Lakes sea lampreys
Jean V. Adams, Michael L. Jones
2022, Ecological Modelling (467)
Understanding recruitment dynamics is an essential part of effective fisheries management, whether the focus is on conservation, harvest policy development, or invasive species control. We developed a model that estimates lake-wide Ricker stock-recruitment relations for invasive sea lampreys (Petromyzon marinus) in each of the five Laurentian Great Lakes to inform future control efforts....
An efficient, analytic solution using order statistics for probabilistic seismic‐hazard assessment without the Poisson assumption
Andrew J. Michael, Andrea L. Llenos
2022, Bulletin of the Seismological Society of America (112) 1678-1693
Standard approaches to probabilistic seismic‐hazard assessment (PSHA) assume that earthquakes are random, independent events that follow a Poisson distribution of occurrences in a given time period (Cornell, 1968). To overcome the limitations of the Poisson assumption, such as ignoring earthquake...
Calibration of an evapotranspiration algorithm in a semiarid sagebrush steppe using a 3-ha lysimeter and Landsat normalized difference vegetation index data
Christopher J. Jarchow, William J. Waugh, Pamela L. Nagler
2022, Ecohydrology (15)
In arid and semiarid environments, evapotranspiration (ET) is the primary discharge component in the water balance, with potential ET exceeding precipitation. For this reason, reliable estimates of ET are needed to construct accurate water budgets in these environments. Remote sensing affords the ability to provide fast,...
Assessing the accuracy and potential for improvement of the national land cover database’s tree canopy cover dataset in urban areas of the conterminous United States
Mehdi Heris, Kenneth J. Bagstad, Austin Troy, Jarlath O’Neil-Dunne
2022, Remote Sensing (14)
The National Land Cover Database (NLCD) provides time-series data characterizing the land surface for the United States, including land cover and tree canopy cover (NLCD-TC). NLCD-TC was first published for 2001, followed by versions for 2011 (released in 2016) and 2011 and 2016 (released in 2019). As...
Human and ecosystem health in coastal systems
Nicole Elko, Diane Foster, Gregory Kleinheinz, Britt Raubenheimer, Suzanne Brander, Julie Kinzelman, Jacob P. Kritzer, Daphne Munroe, Curt D. Storlazzi, Marta Sutula, Annie Mercer, Scott Coffin, Carolyn Fraioli, Luke Ginger, Elise Morrison, Gabrielle Parent-Doliner, Cigdem Akan, Alberto Canestrelli, Michelle DiBenedetto, Jackelyn Lang, Jonathan Simm
2022, Shore and Beach (90) 64-91
U.S. coastal economies and communities are facing an unprecedented and growing number of impacts to coastal ecosystems including beach and fishery closures, harmful algal blooms, loss of critical habitat, as well as shoreline damage. This paper synthesizes our present understanding of the dynamics of human and ecosystem health in coastal...
Distribution probability of the Virginia northern flying squirrel in the High Allegheny Mountains
W. Mark Ford, Corinne A. Diggins, Jesse L. De La Cruz, Alexander Silvis
2022, Journal of the Southeastern Association of Fish and Wildlife Agencies (9) 168-175
In the central Appalachians of Virginia and West Virginia, the Virginia northern flying squirrel (Glaucomys sabrinus fuscus; VNFS) is a subspecies of northern flying squirrel generally associated with red spruce (Picea rubens)-dominated forests at high elevations. Listed as endangered by theU.S. Fish and Wildlife Service from 1985 to 2013, the...
Predicting geothermal favorability in the western United States by using machine learning: Addressing challenges and developing solutions
Stanley Paul Mordensky, John Lipor, Jacob DeAngelo, Erick R. Burns, Cary Ruth Lindsey
2022, Conference Paper, Proceedings, 47th workshop on geothermal reservoir engineering
Previous moderate- and high-temperature geothermal resource assessments of the western United States utilized weight-of-evidence and logistic regression methods to estimate resource favorability, but these analyses relied upon some expert decisions. While expert decisions can add confidence to aspects of the modeling process by ensuring only reasonable models are employed, expert...
The Coles Hill uranium deposit, Virginia, USA: Geology, geochemistry, geochronology, and genetic model
Susan M. Hall, J.S. Beard, Christopher J. Potter, R.J. Bodnar, Leonid A. Neymark, James B. Paces, Craig A. Johnson, G.N. Breit, Robert A. Zielinski, G. J. Aylor Jr.
2022, Economic Geology (117) 273-304
The Coles Hill uranium deposit with an indicated resource of about 130 million lbs. of U3O8 is the largest unmined uranium deposit in the United States. The deposit is hosted in the Taconian (approximately 480 – 450 Ma) Martinsville igneous complex, which consists of the Ordovician Leatherwood Granite (granodiorite) and...
USGS invasive carp database management and integration support
Travis J. Harrison, Marybeth K. Brey, Jayme Stone
2022, Report, 2021 Invasive carp interim summary report
Bigheaded carps (Bighead Carp and Silver Carp) tracking, monitoring, and contracted removal will continue throughout the Illinois River and Upper Mississippi River as part of an adaptive management effort to mitigate, control, and contain bigheaded carps. Other fish will also be tracked to maintain a holistic view of the transmitter...
Wind River subbasin restoration: Annual Report of U.S. Geological Survey activities January 2020 through December 2020
Ian Jezorek
2022, Report
We sampled juvenile wild Steelhead Trout Oncorhynchus mykiss in headwater streams of the Wind River, WA, to characterize population attributes and investigate life-history metrics, particularly migratory patterns, and early life-stage survival. We used passive integrated transponder (PIT) tagging and a series of instream PIT-tag interrogation systems (PTISs) to track juveniles...
Modeling functional flows in California rivers
Theodore E. Grantham, Daren M. Carlisle, Jeanette K. Howard, Belize Lane, Robert Lusardi, Alyssa Obester, Samuel Sandoval-Solis, Bronwen Stanford, Eric D. Stein, Kristine T. Taniguchi-Quan, Sarah M. Yarnell, Julie K. H Zimmerman
Albert Chakona, editor(s)
2022, Frontiers in Environmental Science (10)
Environmental flows are critical to the recovery and conservation of freshwater ecosystems worldwide. However, estimating desired ranges of environmental flows across large, diverse landscapes is challenging. To advance protections of environmental flows for streams in California, USA, we developed a statewide modeling approach focused on functional components of the natural flow...
Strength and memory of precipitation's control over streamflow across the conterminous United States
Edom Moges, Benjamin L. Ruddell, Liang Zhang, Jessica M. Driscoll, Laurel Larsen
2022, Water Resources Research (58)
How precipitation (P) is translated into streamflow (Q) and over what timescales (i.e., “memory”) is difficult to predict without calibration of site-specific models or using geochemical approaches, posing barriers to prediction in ungauged basins or advancement of general theories. Here, we used a data-driven approach to identify regional patterns and...
Real-time telemetry and multi-state modeling
Marybeth K. Brey, Brent C. Knights, P. Ryan Jackson, Jessica C. Stanton, Douglas Appel, James J. Duncker, Andrea K. Fritts
2022, Report, 2022 Invasive Carp Action Plan
This project will result in real-time data and other invasive carp movement information to inform realtime management decisions and refine the SEICarP model. FY 2022 funding will produce final transition probability estimates from the newly-developed Bayesian multi-state model, continue the maintenance of real-time telemetry to inform contingency actions, and produce...
Natural and anthropogenic influences on benthic cyanobacteria in streams of the northeastern United States
Nicholas O. Schulte, Daren M. Carlisle, Sarah A. Spaulding
2022, Science of the Total Environment (826)
Benthic cyanobacteria are widespread in streams and rivers and have the potential to release toxins. In large numbers, these microorganisms and their toxins present a risk to human health. Cyanobacterial abundance in stream biofilms is typically related to single or a limited set of...
Limited land base and competing land uses force societal tradeoffs when siting energy development
Jill A. Shaffer, Neal D. Niemuth, Charles R. Loesch, Clayton E. Derby, Aaron T. Pearse, Kevin W. Barnes, Terry L. Shaffer, Adam J. Ryba
2022, Journal of Fish and Wildlife Management (13) 106-123
As human populations grow, decisions regarding use of the world's finite land base become increasingly complex. We adopted a land use–conflict scenario involving renewable energy to illustrate one potential cause of these conflicts and resulting tradeoff decisions. Renewable energy industries wishing to expand operations in the United States are limited...
Comparison of methods for estimating density and population trends for low-density Asian bears
Dana J. Morin, John Boulanger, Richard Bischof, David C. Lee, Dusit Ngoprasert, Angela K. Fuller, Bruce McLellan, Robert Steinmetz, Sandeep Sharma, Dave Garshelis, Arjun M. Gopalaswamy, Muhammad Ali Nawaz, Ullas Karanth
2022, Global Ecology and Conservation
Populations of bears in Asia are vulnerable to extinction and effective monitoring is critical to measure and direct conservation efforts. Population abundance (local density) or growth (λ) are the most sensitive metrics to change. We discuss the value in implementing spatially explicit capture-recapture (SCR), the current gold standard for density estimation,...
Repeat magnetotelluric measurements to monitor The Geysers steam field in northern California
Jared R. Peacock, David Alumbaugh, Michael Albert Mitchell, Craig Hartline
2022, Conference Paper, Proceedings, 47th Workshop on Geothermal Reservoir Engineering
The Geysers in northern California is the world’s largest electricity generating steam field. To help understand changes in the steam reservoir, repeat magnetotelluric (MT) measurements are being collected once a year from 2021-2023. These data will be compared and modeled to provide 4-D images of changes within the...
Selecting the optimal fine-scale historical climate data for assessing current and future hydrological conditions
Michelle A. Stern, Lorraine E. Flint, Alan L. Flint, Ryan M Boynton, Joseph A E Stewart, Jessica W Wright, James H. Thorne
2022, Journal of Hydrometeorology (23) 293-308
High-resolution historical climate grids are readily available and frequently used as inputs for a wide range of regional management and risk assessments, including water supply, ecological processes, and as baseline for climate change impact studies that compare them to future projected conditions. Because historical gridded climates are produced using various...
Simple relationships between residence time and annual nutrient retention, export, and loading for estuaries
Jian Shen, Jiabi Du, Lisa Lucas
2022, Limnology and Oceanography (67) 918-933
Simple mathematical models are derived from mass balances for water and transported substance to provide insight into the relationships between import, export, transport, and internal removal for nonconservative substances in an estuary. Extending previous work, our models explicitly include water and substance inputs from the ocean...
Biomass allocation of tidal freshwater marsh species in response to natural and manipulated hydroperiod in coastal deltaic floodplains
Andre S. Rovai, Robert R. Twilley, Alexandra Christiensen, Annabeth McCall, Daniel J. Jensen, Gregg Snedden, James T. Morris, John A. Cavell
2022, Estuarine, Coastal and Shelf Science (268)
Deltaic floodplains are highly vulnerable to relative sea level rise (RSLR) depending on the sediment supply from river channels that provides elevation capital as adaptation mechanism. In river channels where levees have restricted sediment supply to coastal deltaic floodplains, river sediment diversions have been proposed as a restoration strategy to...
Taking a macroscale perspective to improve understanding of shallow lake total phosphorus and chlorophyll a
Kendra Spence Cheruvelil, Katherine Webster, Katelyn King, Autumn C. Poisson, Tyler Wagner
2022, Hydrobiologia (849) 3663-3677
We conducted a macroscale study of 2210 shallow lakes (mean depth ≤ 3 m or a maximum depth ≤ 5 m) in the Upper Midwestern and Northeastern USA. We asked the following: What are the patterns and drivers of shallow lake total phosphorus (TP), chlorophyll a (CHLa), and TP–CHLa relationships at the macroscale, how do these differ from...
Active forest management accelerates carbon storage in plantation forests in Lishui, southern China
Jiaojiao Diao, Jinxun Liu, Zhiliang Zhu, Xinyuan Wei, Mingshi Li
2022, Forest Ecosystems (9)
BackgroundChina has committed to achieving peak CO2 emissions before 2030 and carbon neutrality before 2060; therefore, accelerated efforts are needed to better understand carbon accounting in industry and energy fields as well as terrestrial ecosystems. The carbon sink capacity of plantation forests contributes to the mitigation of climate...
Pervasive, preferential flow through mega-thick unsaturated zones in the Southern Great Basin
Tracie R. Jackson, Joseph M. Fenelon, Seth Reilly Gainey
2022, Groundwater (60) 496-509
Recharge from preferential flow through mega-thick (100–1,000 m) unsaturated zones is a pervasive phenomenon, as demonstrated with a case study of volcanic highland recharge areas in the Great Basin province in southern Nevada, USA. Statistically significant rising water-level trends occur for most study-area wells and resulted...
Linear regression model documentation for computing water-quality constituent concentrations using continuous real-time water-quality data for the Republican River, Clay Center, Kansas, July 2018 through March 2021
Brianna M. Leiker
2022, Scientific Investigations Report 2022-5016
The Republican River is the primary inflow to Milford Lake and drains areas of Kansas, Nebraska, and Colorado. Milford Lake has been listed as impaired and designated hypereutrophic by the Kansas Department of Health and Environment because of excessive nutrient loading. Milford Lake had confirmed harmful algal blooms every summer...
Assessing vegetation recovery from energy development using a dynamic reference approach
Adrian P. Monroe, Travis W. Nauman, Cameron L. Aldridge, Michael S. O’Donnell, Michael C. Duniway, Brian S. Cade, Daniel Manier, Patrick J. Anderson
2022, Ecology and Evolution (12) 1-22
Ecologically relevant references are useful for evaluating ecosystem recovery, but references that are temporally static may be less useful when environmental conditions and disturbances are spatially and temporally heterogeneous. This challenge is particularly acute for ecosystems dominated by sagebrush (Artemisia spp.), where communities may require decades to recover from disturbance. We...
