Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states
Dalton Hance, Katie M. Moriarty, Bruce A. Hollen, Russell Perry
2021, Movement Ecology (9)
Studies of animal movement using location data are often faced with two challenges. First, time series of animal locations are likely to arise from multiple behavioral states (e.g., directed movement, resting) that cannot be observed directly. Second, location data can be affected by measurement error, including failed location fixes. Simultaneously...
Prevalence of neonicotinoids and sulfoxaflor in alluvial aquifers in a high corn and soybean producing region of the Midwestern United States
D.A. Thompson, Dana W. Kolpin, Michelle Hladik, Kimberlee K. Barnes, J.D. Vargo, R.W. Field
2021, Science of the Total Environment (782)
Neonicotinoids have been previously detected in Iowa surface waters, but less is known regarding their occurrence in groundwater. To help fill this research gap, a groundwater study was conducted in eastern Iowa and southeastern Minnesota, a corn and soybean producing area with known heavy neonicotinoid...
Five decades of observed daily precipitation reveal longer and more variable drought events across much of the western United States
Fangyue Zhang, Joel A. Biederman, Matthew P. Dannenberg, Dong Yan, Sasha C. Reed, William K. Smith
2021, Geophysical Research Letters (48)
Multiple lines of evidence suggest climate change will result in increased precipitation variability and consequently more frequent extreme events. These hydroclimatic changes will likely have significant socioecological impacts, especially across water-limited regions. Here we present an analysis of daily meteorological observations from 1976 to 2019 at 337...
Water resources of St. Martin Parish, Louisiana
Maxwell A. Lindaman, Vincent E. White
2021, Fact Sheet 2021-3007
Information concerning the availability, use, and quality of water in St. Martin Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about...
Water resources of Iberville Parish, Louisiana
Maxwell A. Lindaman, Vincent E. White
2021, Fact Sheet 2021-3014
Information concerning the availability, use, and quality of water in Iberville Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 589.87 million...
3D Elevation Program—Federal best practices
Vicki Lukas, Vanessa Baez
2021, Fact Sheet 2020-3062
The goal of the 3D Elevation Program (3DEP) is to complete nationwide data acquisition in 8 years, by 2023, to provide the first-ever national baseline of consistent high-resolution three-dimensional data—including bare earth elevations and three-dimensional point clouds—collected in a timeframe of less than a decade. Successful implementation of 3DEP depends...
Aquaculture and Irrigation Water-Use Model (AIWUM) version 1.0—An agricultural water-use model developed for the Mississippi Alluvial Plain, 1999–2017
Jordan L. Wilson
2021, Scientific Investigations Report 2021-5011
Water use is a critical and often uncertain component of quantifying any water budget and securing reliable and sustainable water supplies. Recent water-level declines in the Mississippi Alluvial Plain (MAP), especially in the central part of the Mississippi Delta, pose a threat to water sustainability. Aquaculture and Irrigation Water-Use Model...
Linear regression model documentation and updates for computing water-quality constituent concentrations or densities using continuous real-time water-quality data for the Kansas River, Kansas, July 2012 through September 2019
Thomas J. Williams
2021, Open-File Report 2021-1018
The Kansas River provides drinking water to about 800,000 people in northeastern Kansas. Water-treatment facilities that use the Kansas River as a water-supply source use chemical and physical processes during water treatment to remove contaminants before public distribution. Advanced notification of changing water-quality conditions near water-supply intakes allows water-treatment facilities...
Dynamic Energy Budget modelling to predict eastern oyster growth, reproduction, and mortality under river management and climate change scenarios
Romain Lavaud, Megan La Peyre, Justic Dubravko, Jerome F. La Peyre
2021, Estuarine, Coastal and Shelf Science (251)
Eastern oysters growing in deltaic Louisiana estuaries in the northern Gulf of Mexico must tolerate considerable salinity variation from natural climate variability (e.g., rainfall and stream run-off pushing isohalines offshore; tropical storms pushing isohalines inshore) and man-made diversions and siphons releasing freshwater from the Mississippi River. These salinity variations are...
Advancements in analytical approaches improve whitebark pine monitoring results
Erin Shanahan, Kathryn M. Irvine
2021, Newsletter
Long-term monitoring programs track the status and trends of species in increasingly vulnerable environments. These monitoring results provide critical information for evaluating, understanding, and managing natural resources. To accurately interpret if and how conditions may be changing for select ecological indicators, it is essential that monitoring programs adopt methods to...
Synthesis of geochronologic research on Late Pliocene to Holocene emergent shorelines in the lower Savannah River area of southeastern Georgia, USA
Helaine W. Markewich, Milan J. Pavich, Shannon A. Mahan, Paul R. Bierman, Wilma B. Aleman-Gonzalez, Arthur P. Schultz
2021, Open-File Report 2021-1015
Emergent late Pliocene and Pleistocene shoreline deposits, morphologically identifiable Pleistocene shoreline units, and seaward-facing scarps characterize the easternmost Atlantic Coastal Plain (ACP) of the United States of America. In some areas of the ACP, these deposits, units, and scarps have been studied in detail. Within these areas, temporal and spatial...
Half of global methane emissions come from highly variable aquatic ecosystem sources
Judith A. Rosentreter, Alberto V. Borges, Bridget Deemer, Meredith A. Holgerson, Shaoda Liu, Chunlin Song, John M. Melack, Peter A. Raymond, Carlos M. Duarte, George H. Allen, David Olefeldt, Benjamin Poulter, Tom I. Batin, Bradley D. Eyre
2021, Nature Geoscience (14) 225-230
Atmospheric methane is a potent greenhouse gas that plays a major role in controlling the Earth’s climate. The causes of the renewed increase of methane concentration since 2007 are uncertain given the multiple sources and complex biogeochemistry. Here, we present a metadata analysis of methane fluxes from all major natural,...
Water reliability in the west -- SECURE Water Act Section 9503(C)
Marketa McGuire, Subhrendu Gangopadhyay, Justin Martin, Gregory T. Pederson, Connie A. Woodhouse, Jeremy Littell
2021, Report, Technical Memorandum No. ENV-2021-001
No abstract available....
Implementation plan for the southern Pacific Border and Sierra-Cascade Mountains provinces
Victoria E. Langenheim, Russell W. Graymer, Robert E. Powell, Kevin M. Schmidt, Donald S. Sweetkind
2021, Open-File Report 2021-1012
IntroductionThe National Cooperative Geologic Mapping Program (NCGMP) is publishing a strategic plan titled Renewing the National Cooperative Geologic Mapping Program as the Nation’s Authoritative Source for Modern Geologic Knowledge (Brock and others, in press). The plan provides a vision, mission, and goals for the program during the years 2020–2030, which...
Non-native Pond Sliders cause long-term decline of native Sonora Mud Turtles: A 33-year before-after study in an undisturbed natural environment
Charles A. Drost, Jeffrey E. Lovich, Philip C. Rosen, Matthew Malone, Steven D. Garber
2021, Aquatic Invasions (16) 542-570
Using a before-after study design in a stable, largely undisturbed pond habitat and a dataset spanning 33 years, we document and describe the decline of native Sonora mud turtles (Kinosternon sonoriense) after the introduction of non-native pond sliders (Trachemys scripta). The Sonora mud turtle population in Montezuma Well in central...
Climate change may cause shifts in growth and instantaneous natural mortality of American Shad throughout their native range
Erin K. Gilligan, Daniel S. Stich, Katherine E. Mills, Michael M. Bailey, Joseph D. Zydlewski
2021, Transactions of the American Fisheries Society (150) 407-421
American Shad Alosa sapidissima is an anadromous species with populations ranging along the U.S. Atlantic coast. Past American Shad stock assessments have been data limited and estimating system-specific growth parameters or instantaneous natural mortality (M) was not possible. This precluded system-specific stock assessment and management due to reliance...
Groundwater quality in the Colorado Plateaus aquifers, western United States
James R. Degnan, MaryLynn Musgrove
2021, Fact Sheet 2021-3012
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Colorado Plateaus aquifers constitute one of the important areas being evaluated....
Groundwater quality in selected Stream Valley aquifers, western United States
James A. Kingsbury
2021, Fact Sheet 2021-3011
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Stream Valley aquifers constitute one of the important aquifer systems being...
Groundwater quality in the Edwards-Trinity aquifer system
MaryLynn Musgrove
2021, Fact Sheet 2021-3010
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Edwards-Trinity aquifer system constitutes one of the important aquifers being evaluated....
Abiotic stress and biotic factors mediate range dynamics on opposing edges
Alexej P. K. Siren, Christopher Sutherland, Chris Bernier, Kimberly Royar, Jillian R. Kilborn, Catherine Callahan, Rachel Cliche, Leighlan S. Prout, Toni Lyn Morelli
2021, Journal of Biogeography (48) 1758-1772
AimIn the face of global change, understanding causes of range limits are one of the most pressing needs in biogeography and ecology. A prevailing hypothesis is that abiotic stress forms cold (upper latitude/altitude) limits, whereas biotic interactions create warm (lower) limits. A new framework – Interactive Range-Limit...
The transformation of dryland rivers: The future of introduced tamarisk in the U.S.
Pamela L. Nagler, Julia B. Hull, Charles van Riper III, Patrick B. Shafroth, Charles B. Yackulic
2021, Fact Sheet 2020-3061
Tamarix spp. (tamarisk or saltcedar), a shrub-like tree, was intentionally introduced to the U.S. from Asia in the mid-1800s. Tamarisk thrives in today’s human-altered streamside (riparian) habitats and can be found along wetlands, rivers, lakes, and streams across the western U.S. In 2001, a biological control agent, Diorhabda spp. (tamarisk...
Postcaldera intrusive magmatism at the Platoro caldera complex, Southern Rocky Mountain volcanic field, Colorado, USA
Amy K. Gilmer, Ren A. Thompson, Peter W. Lipman, Jorge A. Vazquez, Amanda Souders
2021, Geosphere (17) 898-931
The Oligocene Platoro caldera complex of the San Juan volcanic locus in Colorado (USA) features numerous exposed plutons both within the caldera and outside its margins, enabling investigation of the timing and evolution of postcaldera magmatism. Intrusion whole-rock geochemistry and phenocryst and/or mineral trace element compositions coupled with new zircon...
Improving paleoseismic earthquake magnitude estimates with rupture length information: Application to the Puget Lowland, Washington State, U.S.A.
Richard Styron, Brian Sherrod
2021, Bulletin of the Seismological Society of America (111) 1139-1153
Both earthquake displacement and rupture length correlate with magnitude, and therefore observations of each from past earthquakes can be used to estimate the magnitude of those earthquakes in the absence of instrumental records. We extend the Bayesian inversion method of Biasi and Weldon (2006), which estimates paleoearthquake magnitude from displacement...
Roadside rights-of-way as pollinator habitat: A literature review
Brianne Du Clos, Phillip deMaynadier, Frank Drummond, Cyndy Loftin
2021, Technical Report ME 21-01
Pollination of crops and naturally-occurring flowering plants is a critical ecosystem service provided by managed and unmanaged animal pollinators. Insects are the most studied pollinators, particularly managed honey bees, unmanaged wild bees, and butterflies. Bees and butterflies thrive in early-<span...
Middle Holocene hydrologic changes catalyzed by river avulsion in Big Soda Lake, Nevada, USA
Michael R. Rosen, Liam M. Reidy, Scott W. Starratt, Susan Zimmerman
David B. Finkelstein, Lisa Park Boush, Sila Pla-Pueyo, editor(s)
2021, Book chapter, Limnogeology: Progress, challenges and opportunities: A tribute to Elizabeth Gierlowski-Kordesch
Big Soda Lake is a 63 m deep, 1.6 km2 maar lake in the Great Basin of Nevada, USA. Water level in the lake is controlled by groundwater inputs from the surrounding aquifer and the only surface water input is rainfall, which is negligible. A core taken in 2010 records an...
