Publications
Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
Mission Area Publications
Mission Area Publications
We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.
Filter Total Items: 171795
Epistylis spp. infestation in two species of mud turtles (Kinosternon spp.) in the American Southwest
The protistan genus Epistylis contains freshwater colonial species that attach to aquatic organisms in an epibiotic or parasitic relationship. They are known to attach to the epidermis and shells of aquatic turtles, but have not been reported to cause heavy infestations or morbidity in turtles. We documented heavy infestations of Epistylis spp. in several populations of Sonoran mud turtles (Kinost
Authors
Audrey K. Owens, Jennifer A. Smith, Rebecca A. Cole, Jeffrey M. Lorch, Daniel A. Grear
Near real-time detection of winter cover crop termination using harmonized Landsat and Sentinel-2 (HLS) to support ecosystem assessment
Cover crops are planted to reduce soil erosion, increase soil fertility, and improve watershed management. In the Delmarva Peninsula of the eastern United States, winter cover crops are essential for reducing nutrient and sediment losses from farmland. Cost-share programs have been created to incentivize cover crops to achieve conservation objectives. This program required that cover crops be plan
Authors
Feng Gao, Jyoti Jennewein, W. Dean Hively, Alex M. Soroka, Alison Thieme, Dawn Bradley, Jason Keppler, Steven Mirsky, Uvirkaa Akumaga
Plague and distemper: Threats to black-footed ferret conservation
No abstract available.
Authors
Tonie E. Rocke
A pilot biodiversity inventory and monitoring protocol in support of coastal adaptation projects in tidal and nearshore subtidal habitats of Boston Harbor Islands
The Boston Harbor Islands National Recreation Area (BOHA) is at high risk to the impacts of sealevel rise (SLR) and erosion from coastal storms. In June 2021, the National Trust for Historic Preservation listed the islands as one of America’s 11 Most Endangered Historic Places due to climate change. BOHA partners have been working to find climate adaptive solutions to protect and sustain critical
Authors
Michelle Staudinger, Marc Albert
Hydrogeologic framework of the Red River alluvial aquifer and Carrizo-Wilcox aquifer in northwestern Louisiana
Groundwater in northwestern Louisiana is a valuable resource needed for expanding public-supply needs as well as possible energy development needs arising from Haynesville Formation natural-gas production. The Red River alluvial and the Carrizo-Wilcox aquifers are two of the most important and heavily pumped aquifers in northwestern Louisiana; however, little documentation of the regional hydrogeo
Authors
Phillip D. Hays, Anna M. Nottmeier, Robert B. Fendick Jr., William J. Daugherty, Kayla Carter
Maximizing the water quality benefits of wetlands in croplands
Key Takeaways Nutrient loads from croplands continue to negatively affect surface water quality, despite considerable investments in and adoption of agricultural conservation practices aimed at reducing nutrient losses. Numerous studies indicate that effective restoration and management of wetlands in and adjacent to cultivated croplands could reduce surface and subsurface nutrient loads to downst
Authors
Owen P. McKenna, Caryn D Ross, Joseph Prenger
Status and trends of the Lake Huron prey fish community, 1976-2021
The U.S. Geological Survey Great Lakes Science Center has assessed annual changes in the offshore prey fish community of Lake Huron since 1973. Assessments are based on a bottom trawl survey conducted in October of each year and an acoustics-midwater trawl survey, which began in 2004 and is conducted in September-October. Due to weather delays and continued travel restrictions during 2021, there
Authors
Timothy P. O'Brien, Darryl W. Hondorp, Peter C. Esselman, Edward F. Roseman
Geologic map of Okmok Volcano
The geologic map and description of map units presented here cover approximately 880 km2 of northeastern Umnak Island, Aleutian Islands, Alaska. This report focuses on Okmok Volcano and its eruptive products and updates the mid-20th-century geologic map of Byers (1959). Mapped deposits reflect the state of the volcano just prior to the 2008 eruption. Published information about other portions of U
Authors
Jessica Larsen, Christina A. Neal, Janet Schaefer, Christopher J. Nye
2021–2022 Statewide Abundance Estimates for the Florida Manatee
Knowing the population size of Florida manatees (Trichechus manatus latirostris) is critical for conservation and management of this threatened species. Martin et al. (2015) and Hostetler et al. (2018) applied statistical models that incorporated multiple data sources to estimate the statewide abundance of manatees from aerial surveys f lown in 2011–2012 and 2015–2016. We conducted additional aeri
Authors
Timothy A. Gowan, Holly H. Edwards, Andrea M. Krzystan, Julien Martin, Jeffrey A. Hostetler
Comprehensive inventory of habitat assessment and evaluation datasets to support Deepwater Horizon mesophotic and deep benthic communities
This report is part of the NOAA Mesophotic and Deep Benthic Communities (MDBC) Series of
publications that share the results of work conducted by the Deepwater Horizon MDBC restoration projects.
The 2010 Deepwater Horizon oil spill was an unprecedented event. Approximately 3.2 million barrels of oil were released into the deep ocean over nearly three months. The plume of oil moved throughout
Authors
Rachel Bassett, Jennifer Herting, Janessy Frometa, Stephanie M. Sharuga, Jacob Howell, Laughlin Siceloff, Jill Bourque, Megan Cromwell, Kirstie Francis, Randy Clark, Amanda Demopoulos, Andy David, Kristopher Benson, Stacey L. Harter
The not-so-dead of winter: Underwater light climate and primary productivity under snow and ice cover in inland lakes
As global surface temperatures continue to rise as a result of anthropogenic climate change, effects in temperate lakes are likely to be more pronounced than in other ecosystems. Decreases in snow and ice cover extent and duration, as well as extended periods of summer stratification have been observed in temperate lake systems throughout the Anthropocene. However, the effects of changing snow and
Authors
Andrew J. Bramburger, Ted Ozersky, Greg M. Silsbe, Christopher J. Crawford, Leif Olmanson, Krill Shchapov
What controls suspended-sediment concentration and export in flooded agricultural tracts in the Sacramento-San Joaquin Delta?
We investigated wind-wave and suspended-sediment dynamics in Little Holland Tract and Liberty Island, two subsided former agricultural tracts in the Cache Slough complex in the northern Sacramento-San Joaquin Delta which were restored to tidal shallows to improve habitat. Turbidity, and thus suspended-sediment concentration (SSC), is important to habitat quality because some species of native fish
Authors
Jessica R. Lacy, Evan T. Dailey, Tara L. Morgan-King