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

178737 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 1, results 1 - 25

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Havasuw baj gwawg gnavg
Carletta Tilousi, Jo Ellen Hinck
2024, General Information Product 241
The conceptual risk framework, previously developed by the U.S. Geological Survey, for uranium mining was updated to include indigenous knowledge components informed by the Havasupai Tribe perspective. This General Information Product was designed to show the contaminant exposure framework from the Havasupai perspective in the Havasupai language....
Evaluation and review of best management practices for the reduction of polychlorinated biphenyls to the Chesapeake Bay
Trevor P. Needham, Emily Majcher, Ellie Foss, Olivia H. Devereux
2024, Scientific Investigations Report 2023-5074
Polychlorinated biphenyls (PCBs) continue to impact the environment due to historic and ongoing anthropogenic sources (for example, industrial and agricultural), despite their ban. Contaminated stormwater has been identified as a vector for PCB transport to many estuaries impaired by PCBs. Management of these regulated discharges is typically achieved by best...
Determinants of spring migration departure dates in a New World sparrow: Weather variables reign supreme
Allison J. Byrd, Katherine M. Talbott, Tara M. Smiley, Taylor B. Verrett, Michael S. Gross, Michelle Hladik, Ellen D. Ketterson, Daniel J. Becker
2024, Ecology and Evolution (14)
Numerous factors influence the timing of spring migration in birds, yet the relative importance of intrinsic and extrinsic variables on migration initiation remains unclear. To test for interactions among weather, migration distance, parasitism, and physiology in determining spring departure date, we used the Dark-eyed...
A biodynamic model predicting copper and cadmium bioaccumulation in caddisflies: Linkages between field studies and laboratory exposures
Michelle I. Hornberger
2024, PLoSOne (19)
Hydropsyche and Arctopsyche are filter-feeding caddisflies (Order: Trichoptera; Family: Hydropsychidae) that are commonly used to monitor metal exposures in rivers. While tissue residue concentrations provide important bioaccumulation data regarding metal bioavailability, they do not provide information regarding the mechanisms of uptake and loss, or exposure history. This study examined...
Wildfire burn severity and stream chemistry influence aquatic invertebrate and riparian avian mercury exposure in forested ecosystems
Garth Herring, Lora B. Tennant, James Willacker, Matthew Johnson, Rodney B. Siegel, Julie S. Polasik, Collin Eagles-Smith
2024, Ecotoxicology
Terrestrial soils in forested landscapes represent some of the largest mercury (Hg) reserves globally. Wildfire can alter the storage and distribution of terrestrial-bound Hg via reemission to the atmosphere or mobilization in watersheds where it may become available for methylation and uptake into food webs. Using...
Outcomes of control and monitoring of a widespread riparian invader (Tamarix spp.): A comparison of synthesis approaches
Alexander R.B. Goetz, Eduardo Gonzalez-Sargas, Mayra C. Vidal, Patrick B. Shafroth, Annie L. Henry, Anna A. Sher
2024, NeoBiota (91) 67-98
Effective ecological restoration requires empirical assessment to determine outcomes of projects, but conclusions regarding the effects of restoration treatments on the whole ecosystem remain rare. Control of invasive shrubs and trees in the genus Tamarix and associated riparian restoration in the American Southwest has been...
Tracking cycles of Phanerozoic opening and closing of ocean basins using detrital rutile and zircon geochronology and geochemistry
Margaret L. Odlum, Tomas N. Capaldi, Kelly David Thomson, Daniel F. Stockli
2024, Geology
Sedimentary basins provide a deep time archive of tectonic and Earth-surface processes that can be leveraged by detrital mineral U-Pb dating and geochemistry to track paleogeography, magmatism, and crustal evolution. Zircon preserves the long-term (billions of years) record of supercontinent cycles; however, it...
The 3D Elevation Program—Supporting Florida's economy
Xan Fredericks, Chris Cretini
2024, Fact Sheet 2023-3037
IntroductionFlorida has the longest coastline of any State in the contiguous United States, and its coastal resources are one of the main drivers of its economic growth. High-quality elevation data are beneficial for use in emergency management, especially for hurricane response, recovery, and mitigation, as well as for coastal zone...
Conceptual risk framework—Havasupai perspective
Carletta Tilousi, Jo Ellen Hinck
2024, General Information Product 240
The conceptual risk framework, previously developed by the U.S. Geological Survey, for uranium mining was updated to include indigenous knowledge components informed by the Havasupai Tribe perspective. This General Information Product was designed to show the contaminant risk framework from the Havasupai perspective....
Contaminant exposure framework—Havasupai perspective
Carletta Tilousi, Jo Ellen Hinck
2024, General Information Product 239
The conceptual risk framework, previously developed by the U.S. Geological Survey, for uranium mining was updated to include indigenous knowledge components informed by the Havasupai Tribe perspective. This General Information Product was designed to show the contaminant exposure framework from the Havasupai perspective....
Paleoproterozoic reworking of Archean crust and extreme back-arc metamorphism in the enigmatic southern Trans-Hudson orogen
Ian William Hillenbrand, Amy K. Gilmer, Michael L. Williams, Amanda (Kate) Souders, Michael J. Jercinovic, Heather A. Lowers, Jorge A. Vazquez
2024, Geophysical Research Letters (51)
The crustal evolution of the southernmost ∼2000–1800 Ma Trans-Hudson orogen (THO) is enigmatic due to burial by Phanerozoic sediments. We provide new insights through petrochronologic analysis of a paragneiss drill core sample. Detrital zircon age peaks at 2625, 2340, and 1880 Ma and Hf isotopes suggest Paleoproterozoic arc development...
Monitoring polar ice change in the twilight zone
Theodore A. Scambos, Christopher Shuman, Mark Fahnestock, Tasha Snow, Christopher J. Crawford
2024, Eos, American Geophysical Union
Landsat’s new extended data collection program is mapping Arctic and Antarctic regions year-round, even in polar twilight....
How quickly do oil and gas wells “Water Out”? Quantifying and contrasting water production trends
Seth S. Haines, Brian A. Varela, Marilyn Tennyson, Nicholas J. Gianoutsos
2024, Natural Resources Research
Water production from petroleum (oil and natural gas) wells is a topic of increasing environmental and economic importance, yet quantification efforts have been limited to date, and patterns between and within petroleum plays are largely unscrutinized. Additionally, classification of reservoirs as “unconventional” (also known as “continuous”)...
Comparison of longitudinal stream temperature profiles and significant thermal features from airborne thermal infrared and float surveys of the Skykomish, Snoqualmie, and Middle Fork Snoqualmie Rivers, King and Snohomish Counties, Washington, summer 2020 and 2021
Daniel E. Restivo, Mousa Diabat, Chris Miwa, Valerie A.L. Bright
2024, Scientific Investigations Report 2023-5146
Summer water temperatures in the Skykomish, Snoqualmie, and Middle Fork Snoqualmie Rivers in western Washington have in recent decades exceeded the water temperature criteria for aquatic life uses set by the Washington Department of Ecology. This temperature increase is of particular concern because these rivers provide critical habitat for several...
Lava flow impacts on the built environment: Insights from a new global dataset
Elinor S. Meredith, Susanna F. Jenkins, Josh L. Hayes, David Lallemand, Natalia Irma Deligne, Natalie Teng Rui Xue
2024, Journal of Applied Volcanology (13)
The recent destruction of thousands of homes by lava flows from La Palma volcano, Canary Islands, and Nyiragongo volcano, Democratic Republic of Congo, serves as a reminder of the devastating impact that lava flows can have on communities living in volcanically active regions. Damage to buildings...
Videographic monitoring at caves to estimate population size of the endangered yǻyaguak (Mariana swiftlet) on Guam
P. Marcos Gorresen, Paul M. Cryan, Megan Parker, Frank Alig, Melia Gail Nafus, Eben H. Paxton
2024, Endangered Species Research (53) 139-149
The yǻyaguak (Mariana swiftlet; Aerodramus bartschi) is an endangered cave-nesting species historically found on Guam and the southern Mariana Islands, Micronesia. The population on Guam has been severely affected by the introduction of the brown treesnake Boiga irregularis. Population status assessments have, however, been challenging due to the limitations of traditional...
Monitoring of wave, current, and sediment dynamics along the Fog Point Living Shoreline, Glenn Martin National Wildlife Refuge, Maryland
H. Wang, Q. Chen, W.D. Capurso, N. Wang, L.M. Niemoczynski, M. Whitbeck, L. Zhu, G.A. Snedden, C.A. Wilson, M.S. Brownley
2024, Open-File Report 2024-1004
Living shorelines with salt marsh species, rock breakwaters, and sand nourishment were built along the coastal areas in the Glenn Martin National Wildlife Refuge, Maryland, in 2016 in response to Hurricane Sandy (2012). The Fog Point living shoreline at Glenn Martin National Wildlife Refuge was designed with the “headland -...
Deformation-induced graphitization and muscovite recrystallization in a ductile fault zone
Martha (Rebecca) Stokes, Aaron M. Jubb, Ryan J. McAleer, David Bish, Robert Wintsch
2024, Journal of Metamorphic Geology
A suite of slate samples collected along a 2 km transect crossing the Lishan fault in central Taiwan were evaluated to assess the role of ductile deformation in natural graphitization at lower greenschist facies metamorphic conditions. The process of natural aromatization, or graphitization, of an...
A systematic review of the effects of climate variability and change on black and brown bear ecology and interactions with humans
Katherine Anne Kurth, Kate Malpeli, Joseph D. Clark, Heather E. Johnson, Frank T. van Manen
2024, Biological Conservation (291)
Climate change poses a pervasive threat to humans and wildlife by altering resource availability, changing co-occurrences, and directly or indirectly influencing human-wildlife interactions. For many wildlife agencies in North America, managing bears (Ursus spp.) and human-bear interactions is a priority, yet...
Polar bear energetic and behavioral strategies on land with implications for surviving the ice-free period
Anthony M. Pagano, Karyn D. Rode, Nicholas J. Lunn, David McGeachy, Stephen N. Atkinson, Sean D. Farley, Joy A. Erlenbach, Charles T. Robbins
2024, Nature Communications (15)
Declining Arctic sea ice is increasing polar bear land use. Polar bears on land are thought to minimize activity to conserve energy. Here, we measure the daily energy expenditure (DEE), diet, behavior, movement, and body composition changes of 20 different polar bears on land over 19–23 days from August to...
Water-level and recoverable water in storage changes, High Plains Aquifer, predevelopment to 2019 and 2017 to 2019
Virginia L. McGuire, Kellan R. Strauch
2024, Scientific Investigations Report 2023-5143
The High Plains aquifer underlies 111.8 million acres (about 175,000 square miles) in parts of eight States: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. Water-level declines began in parts of the High Plains aquifer soon after the beginning of substantial groundwater irrigation (about 1950). This report...
Establishing fluvial silicon regimes and their stability across the Northern Hemisphere
Keira Johnson, Kathi Jo Jankowski, Joanna C. Carey, Nicholas Lyon, William H. McDowell, Arial J. Shogren, Adam S. Wymore, Lienne R. Sethna, Wilfred M. Wollheim, Amanda Poste, Pirkko Kortelainen, Ruth C. Heindel, Hjalmar Laudon, Antti Raike, Jeremy B. Jones, Diane M. McKnight, Paul Julian, Sidney A. Bush, Pamela L. Sullivan
2024, Limnology and Oceanography Letters
Fluvial silicon (Si) plays a critical role in controlling primary production, water quality, and carbon sequestration through supporting freshwater and marine diatom communities. Geological, biogeochemical, and hydrological processes, as well as climate and land use, dictate the amount of Si exported by streams. Understanding Si...
Incorporating intensity distance attenuation into PLUM ground-motion-based earthquake early warning in the United States: The APPLES configuration
Jessie K. Saunders, Elizabeth S. Cochran, Julian Bunn, Annemarie S. Baltay, Sarah E. Minson, Colin T O'Rourke
2024, Earth's Future (12)
We develop Attenuated ProPagation of Local Earthquake Shaking (APPLES), a new configuration for the United States West Coast version of the Propagation of Local Undamped Motion (PLUM) earthquake early warning (EEW) algorithm that incorporates attenuation into its ground-motion prediction procedures. Under APPLES, instead of using a fixed...
Vegetation responses to large dam removal on the Elwha River, Washington, USA
Patrick B. Shafroth, Laura G. Perry, James M. Helfield, Joshua Chenoweth, Rebecca L. Brown
2024, Frontiers in Ecology and Evolution (12)
Large dam removal can trigger changes to physical and biological processes that influence vegetation dynamics in former reservoirs, along river corridors downstream of former dams, and at a river’s terminus in deltas and estuaries. We present the first comprehensive review of vegetation response to major fluvial disturbance caused by...
Population genetics of museum specimens indicate decreasing genetic resiliency: The case of two bumble bees of conservation concern
Ashley Rhode, Michael Branstetter, Karen E. Mock, Joyce Knoblett, David Pilliod, Jeffrey Everett, Paul Galpern, James P. Strange
2024, Biological Conservation (291)
Genetic resiliency is the likelihood that populations retain sufficient genetic diversity to respond to environmental change. It is rarely examined through time in conservation genetic studies due to challenges of acquiring and sequencing historical specimens. Focusing on populations of...