Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

40777 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 183, results 4551 - 4575

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Coupling process-based and empirical models to assess management options to meet conservation goals
Catherine S. Jarnevich, Catherine Cullinane Thomas, Nicholas E. Young, Perry Grissom, Dana M. Backer, Leonardo Frid
2022, Biological Conservation (256) 1-13
Conservation lands face a mounting threat of ecosystem transformation and the loss of biodiversity from the invasion of fire-prone perennial and annual grasses. Managers must make difficult decisions to find efficient ways to expend limited resources to manage large and complex landscapes amidst substantial uncertainty regarding effective treatment strategies, climates,...
INHABIT: A web-based decision support tool for invasive plant species habitat visualization and assessment across the contiguous United States
Peder Engelstad, Catherine S. Jarnevich, Terri Hogan, Helen Sofaer, Ian S. Pearse, Jennifer Sieracki, Neil Frakes, Julia Sullivan, Nicholas E. Young, Janet S. Prevey, Pairsa Nicole Belamaric, Jillian Marie Laroe
Daniel de Paiva Silva, editor(s)
2022, PLoSOne (17) 1-15
Narrowing the communication and knowledge gap between producers and users of scientific data is a longstanding problem in ecological conservation and land management. Decision support tools (DSTs), including websites or interactive web applications, provide platforms that can help bridge this gap. DSTs can most effectively disseminate and translate research results...
Fluoride in thermal and non-thermal groundwater: Insights from geochemical modeling
D. Kirk Nordstrom
2022, Science of the Total Evironment (824)
High fluoride (F) groundwaters (>1 mg/L) have been recognized as a water quality problem for nearly a century and occur in many countries worldwide. The affected aquifers can be sedimentary, metamorphic or igneous rocks, but the process giving rise to high-F concentrations has been...
Volcano geodesy using InSAR in 2020: The past and next decades
Michael Poland, Howard Zebker
2022, Bulletin of Volcanology (84)
The study of volcano deformation has grown significantly through they year 2020 since the development of interferometric synthetic aperture radar (InSAR) in the 1990s. This relatively new data source, which provides evidence of changes in subsurface magma storage and pressure without the need for ground-based equipment, has matured during the past...
Permeability measurement and prediction with nuclear magnetic resonance analysis of gas hydrate-bearing sediments recovered from Alaska North Slope 2018 Hydrate-01 Stratigraphic Test Well
Jun Yoneda, Kiyofumi Suzuki, Yusuke Jin, Satoshi Ohtsuki, Timothy S. Collett, Ray Boswell, Yuki Maehara, Norihiro Okinaka
2022, Energy and Fuels Journal (36) 2515-2529
Permeability of porous media, such as oil and gas reservoirs, is the crucial material parameter for predicting their hydraulic behavior. A nuclear magnetic resonance (NMR) analyzer is widely used as a powerful tool to predict permeability of various media. NMR T2 (transverse or spin–spin) relaxation time distribution, which...
Characterizing unrest: A retrospective look at 20 years of gas emissions and seismicity at Iliamna Volcano, Alaska
Cynthia Werner, John Power, Peter J. Kelly, Stephanie Prejean, Christoph Kern
2022, Journal of Volcanology and Geothermal Research (422)
Episodes of unrest are not as well documented as eruptions at most volcanoes globally. Iliamna is an andesitic stratovolcano in the Cook Inlet of Alaska that has experienced several episodes of unrest. Unrest in 1996 was previously studied. Here we present data...
Analyzing the effects of land cover change on the water balance for case study watersheds in different forested ecosystems in the USA
Nathan C. Healey, Jennifer Rover
2022, Land (11)
We analyzed impacts of interannual disturbance on the water balance of watersheds in different forested ecosystem case studies across the United States from 1985 to 2016 using a remotely sensed long-term land cover monitoring record (U.S. Geological Survey Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Science products), gridded...
Rainfall triggering of post-fire debris flows over a 28-year period near El Portal, California, USA
Jerome V. De Graff, Dennis M. Staley, Greg M. Stock, Kellen Takenaka, Alan L. Gallegos, Chad K. Neptune
2022, Environmental and Engineering Geoscience (28) 133-145
Wildfires frequently affect the steep hillslopes near El Portal, California (United States), a small community established during the California Gold Rush in the mid-1800s. In addition to the historical significance of El Portal, State Route 140 (SR 140) is a major transportation and economic corridor connecting the San Joaquin Valley...
Rockfall kinematics from massive rock cliffs: Outlier boulders and flyrock from Whitney Portal, California, rockfalls
Brian D. Collins, Skye C. Corbett, Elizabeth Jean Horton, Alan J. Gallegos
2022, Environmental and Engineering Geoscience (28) 3-24
Geologic conditions and topographic setting are among the most critical factors for assessing rockfall hazards. However, other subtle features of rockfall motion may also govern the runout of rockfall debris, particularly for those sourced from massive cliffs where debris can have substantial momentum during transport. Rocks may undergo collisions with...
Unravelling a 2300 year long sedimentary record of megathrust and intraslab earthquakes in proglacial Skilak Lake, south-central Alaska
Nore Praet, Maarten Van Daele, Jasper Moernaut, Thomas Mestdagh, Thomas Vandorpe, Britta J.L. Jensen, Robert C. Witter, Peter J. Haeussler, Marc De Batist
2022, Sedimentology (69) 2151-2180
Seismic hazards in subduction settings typically arise from megathrust, intraslab and crustal earthquake sources. Despite the frequent occurrence of intraslab earthquakes in subduction zones and their potential threat to communities, their long-term recurrence behaviour is barely studied. Sedimentary sequences in lakes may register ground shaking from different seismic sources. This...
Detrital zircon provenance of the Cretaceous-Neogene East Coast Basin reveals changing tectonic conditions and drainage reorganization along the Pacific margin of Zealandia
Jared T. Gooley, Nora Maria Nieminski
2022, Geosphere (18) 616-646
The Upper Cretaceous–Pliocene strata of New Zealand record ~100 m.y. of Zealandia’s evolution, including development of the Hikurangi convergent margin and Alpine transform plate boundary. A comprehensive, new detrital zircon U-Pb data set (8315 analyses from 61 samples) was generated along a ~700 km transect of the East Coast Basin...
DSWEmod - The production of high-frequency surface water map composites from daily MODIS images
Christopher E. Soulard, Eric Waller, Jessica J. Walker, Roy E. Petrakis, Britt Windsor Smith
2022, Journal of the American Water Resources Association (58) 248-268
Optical satellite imagery is commonly used for monitoring surface water dynamics, but clouds and cloud shadows present challenges in assembling complete water time series. To test whether the daily revisit rate of Moderate Resolution Imaging Spectroradiometer (MODIS) satellite imagery can reduce cloud obstruction and improve high-frequency...
Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California
Brock Huntsman, Larry R. Brown, Kai Palenscar, Chris Jones, Kerwin Russell, Heather Dyer, Brett Mills, Marissa L. Wulff, Jason May
2022, Canadian Journal of Fisheries and Aquatic Sciences (79) 1389-1406
Accurate estimates of abundance are a cornerstone for resource managers to make effective decisions for fish conservation. However, multiple sampling methods often are required to sample fish communities, and ignoring the detection process can create substantial bias in latent state parameter estimation (e.g., abundance, survival). We developed a joint-species N-mixture model...
Partitioning ground motion uncertainty when conditioned on station data
Davis T. Engler, Charles Worden, Eric M. Thompson, Kishor S. Jaiswal
2022, Bulletin of the Seismological Society of America (112) 1060-1079
Rapid estimation of earthquake ground shaking and proper accounting of associated uncertainties in such estimates when conditioned on strong‐motion station data or macroseismic intensity observations are crucial for downstream applications such as ground failure and loss estimation. The U.S. Geological Survey ShakeMap system is called upon to fulfill this objective...
Demographic implications of lead poisoning for eagles across North America
Vincent A. Slabe, James T. Anderson, Brian A. Millsap, Jeffrey L. Cooper, Alan R. Harmata, Marco Restani, Ross H. Crandall, Barbara L. Bodenstein, Peter H. Bloom, Travis L. Booms, John Buchweitz, Renee C. E. Culver, Kim Dickerson, Robert Domenech, Ernesto Dominguez-Villegas, Daniel Driscoll, Brian W. Smith, Michael J. Lockhart, David McRuer, Tricia A. Miller, Patricia Ortiz, Krysta Rogers, Matt Schwarz, Natalie Turley, Brian Woodbridge, Myra E. Finkelstein, Christian A. Triana, Christopher R. DeSorbo, Todd E. Katzner
2022, Science (375) 779-782
Lead poisoning occurs worldwide in populations of predatory birds, but exposure rates and population impacts are known only from regional studies. We evaluated the lead exposure of 1210 bald and golden eagles from 38 US states across North America, including 620 live eagles. We detected unexpectedly high frequencies of lead...
Least Bell's Vireos and Southwestern Willow Flycatchers at the San Luis Rey flood risk management project area in San Diego County, California: Breeding activities and habitat use—2021 Annual report
Alexandra Houston, Lisa D. Allen, Ryan E. Pottinger, Barbara E. Kus
2022, Open-File Report 2022-1012
Executive SummarySurveys and monitoring for the endangered Least Bell’s Vireo (Vireo bellii pusillus; vireo) were done at the San Luis Rey Flood Risk Management Project Area (Project Area) in the city of Oceanside, San Diego County, California, between April 4 and August 4, 2021. We completed four protocol surveys during...
The global environmental agenda urgently needs a semantic web of knowledge
Stefano Balbi, Kenneth J. Bagstad, Ainhoa Magrach, Maria Jose Sanz, Naikoa Aguilar-Amuchastegui, Carlo Guipponi, Ferdinando Villa
2022, Environmental Evidence (11)
Progress in key social-ecological challenges of the global environmental agenda (e.g., climate change, biodiversity conservation, Sustainable Development Goals) is hampered by a lack of integration and synthesis of existing scientific evidence. Facing a fast-increasing volume of data, information remains compartmentalized to pre-defined scales and fields, rarely building its way up...
Pollutant co-attenuation via in-stream interactions between mine drainage and municipal wastewater
Charles J. Spellman, Peter M. Smyntek, Charles A. Cravotta III, Travis L. Tasker, William H. J. Strosnider
2022, Water Research (214)
Municipal wastewater (MWW) and mine drainage (MD) are common co-occurring sources of freshwater pollution in mining regions. The physicochemical interactions that occur after mixing MWW and MD in a waterway may improve downstream water quality of an impaired reach by reducing downstream concentrations of nutrients and metals (i.e., “co-attenuation”). A...
Effects of weather variation on waterfowl migration: Lessons from a continental-scale generalizable avian movement and energetics model
Kevin Aagaard, Eric V. Lonsdorf, Wayne E. Thogmartin
2022, Ecology and Evolution (12)
We developed a continental energetics-based model of daily mallard (Anas platyrhynchos) movement during the non-breeding period (September to May) to predict year-specific migration and overwinter occurrence. The model approximates movements and stopovers as functions of metabolism and weather, in terms of temperature and frozen precipitation (i.e.,...
Contaminant fluxes across ecosystems mediated by aquatic insects
Mirco Bundschuh, Sebastian Pietz, Alexis P. Roodt, Johanna M. Kraus
2022, Current Opinion in Insect Science (50)
Metals and organic contaminants in aquatic systems affect the coupling of aquatic and terrestrial ecosystems through two pathways: contaminant-induced effects on insect emergence and emergence-induced contaminant transfer. Consequently, the impact of aquatic contaminants on terrestrial ecosystems can be driven by modifications in...
Atlantic circulation change still uncertain
K. Halimeda Kilbourne, Alan D. Wanamaker, Paola Moffa-Sanchez, David J. Reynolds, Daniel E. Amrhein, Paul G. Butler, Marlos Goes, Malte Jansen, Christopher M. Little, Madelyn Jean Mette, Eduardo Moreno-Chamarro, Pablo Ortega, Bette L. Otto-Bliesner, Thomas Rossby, James Scourse, Nina M. Whitney
2022, Nature Geoscience (15) 165-167
Deep oceanic overturning circulation in the Atlantic (Atlantic Meridional Overturning Circulation (AMOC)) is projected to decrease in the future in response to anthropogenic warming. Caesar et al.1 argue that an AMOC slowdown started in the nineteenth century and intensified during the mid-twentieth century. Although the argument and selected evidence proposed...
Wildfire probability models calibrated using past human and lightning ignition patterns can inform mitigation of post-fire hydrologic hazards
Miguel L. Villarreal, Laura M. Norman, Erika Yao, Caroline Rose Conrad
2022, Geomatics, Natural Hazards and Risk (13) 568-590
Most wildfires are started by humans, however, geographic variation of potential ignition sources is not often explicitly accounted for in wildfire simulation modelling or risk assessments. In this study, we investigated how patterns of human and lightning ignitions can influence modelled fire simulations and demonstrate how these...
How similar was the 1983 Mw 6.9 Borah Peak earthquake rupture to its surface-faulting predecessors along the northern Lost River fault zone (Idaho, USA)?
Christopher DuRoss, Richard W. Briggs, Ryan D. Gold, Alexandra Elise Hatem, Austin John Elliott, Jaime Delano, Ivan Medina-Cascales, Harrison J. Gray, Shannon A. Mahan, Sylvia Nicovich, Zachery Lifton, Emily J. Kleber, Greg N. McDonald, Adam Hiscock, Mike Bunds, Nadine G. Reitman
2022, Geological Society of America Bulletin (134) 2767-2789
We excavated trenches at two paleoseismic sites bounding a trans-basin bedrock ridge (the Willow Creek Hills) along the northern Lost River fault zone to explore the uniqueness of the 1983 Mw 6.9 Borah Peak earthquake compared to its prehistoric predecessors. At the Sheep Creek site on the southernmost Warm Springs section, two...
Mapping benthic algae and cyanobacteria in river channels from aerial photographs and satellite images: A proof-of-concept investigation on the Buffalo National River, AR, USA
Carl J. Legleiter, Shawn W Hodges
2022, Remote Sensing (14)
Although rivers are of immense practical, aesthetic, and recreational value, these aquatic habitats are particularly sensitive to environmental changes. Increasingly, changes in streamflow and water quality are resulting in blooms of bottom-attached (benthic) algae, also known as periphyton, which have become widespread in many water bodies of US national parks....
Managing multiple species with conflicting needs in the Greater Everglades
Stephanie Romanach, Saira M. Haider, Caitlin E. Hackett, Mark McKelvy, Leonard G. Pearlstine
2022, Ecological Indicators (136)
Given limited funding, natural resources decision making is riddled with tradeoffs, including which species or landscapes to prioritize for management action. Florida’s Everglades wetland is home to numerous indicator species, some of which are endangered. But with a multitude of species...