Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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The Native American Research Assistantship Program—Building capacity for Indigenous water-resources monitoring The Native American Research Assistantship Program—Building capacity for Indigenous water-resources monitoring
Intertribal networks for collecting and analyzing hydrologic and environmental data are growing. The U.S. Geological Survey can be a key partner with Tribal Nations in the further development of network capacity. A first step is the internship opportunity available through the partnership between the USGS and The Wildlife Society: The Native American Research Assistantship Program.
Authors
Electa Hare-Red Corn, Robert F. Breault, Jason R. Sorenson
Climate science and adaptation planning support for State Wildlife Action Plans in the North Central region Climate science and adaptation planning support for State Wildlife Action Plans in the North Central region
Final report for an NC CASC project to identify needs and provide support for states in the North Central region and Idaho to integrate climate science and adaptation into their State Wildlife Action Plans (SWAPs). Our objectives were to: 1) engage with state wildlife agencies in the North Central region to identify their needs for climate-informed planning support and 2) collaboratively...
Authors
Kimberly E Szcodronski, Blake R. Hossack, Sarah Elizabeth Burton, Alisa Wade Wilcox
A predictive analysis of water use for Providence, Rhode Island A predictive analysis of water use for Providence, Rhode Island
To explain the drivers of historical water use in the public water systems (PWSs) that serve populations in Providence, Rhode Island, and surrounding areas, and to forecast future water use, a machine-learning model (cubist regression) was developed by the U.S. Geological Survey in cooperation with Providence Water to model daily per capita rates of domestic, commercial, and industrial...
Authors
Catherine A. Chamberlin
Western and McKay's bumble bees occupancy trends and future projections Western and McKay's bumble bees occupancy trends and future projections
The Western and McKay's bumble bees, originally petitioned for listing as subspecies of the Western bumble bee (Bombus occidentalis) were previously among the most common western bumble bee species but have declined since the late 1990s (Graves et al. 2021). This report details an occupancy analysis utilizing pre-existing and newly collected bumble bee survey data to evaluate potential...
Authors
William Michael Janousek, Margaret R. Douglas, Imtiaz Rangwala, Jeffrey G. Everett, Douglas A. Keinath, Tabitha A. Graves
Control of introduced American bullfrogs and support of Chiricahua leopard frog conservation in southeast Arizona Control of introduced American bullfrogs and support of Chiricahua leopard frog conservation in southeast Arizona
1. This report summaries field surveys conducted during July 2023 through April 2024 to control introduced American bullfrogs (Lithobates [Rana] catesbeianus; hereafter bullfrog) and support Chiricahua leopard frog (Lithobates [Rana] chiricahuensis) conservation in southeast Arizona. We conducted 394 field surveys across 141 sites in Chiricahua leopard frog Recovery Units 1 and 2 during...
Authors
Javan Mathias Bauder, Chris L. Prewitt
Connecting conservation practices to local stream health in the Chesapeake Bay watershed Connecting conservation practices to local stream health in the Chesapeake Bay watershed
The Chesapeake Bay Partnership is implementing conservation practices (CPs) throughout the Chesapeake Bay watershed to reduce nutrient and sediment delivery to the Bay. This study intends to provide an integrated and detailed understanding of how local streams respond to these CP-driven management efforts. Key issue: To what extent do CPs positively affect the health of local streams in...
Authors
Gregory B. Noe, Paul L. Angermeier, Larry B. Barber, Joe Buckwalter, Matthew J. Cashman, Olivia Devereux, Thomas Rossiter Doody, Sally Entrekin, Rosemary Margaret Fanelli, Nathaniel P. Hitt, Molly Elizabeth Huber, Jeramy Roland Jasmann, Kelly O. Maloney, Tristan Gregory Mohs, Sergio Sabat-Bonilla, Kelly L. Smalling, Tyler Wagner, John C. Wolf, Kenneth Hyer
Guidelines for the use of automatic samplers in collecting surface-water quality and sediment data Guidelines for the use of automatic samplers in collecting surface-water quality and sediment data
The importance of fluvial systems in the transport of sediment, dissolved and suspended contaminants, nutrients, and bacteria through the environment is well established. The U.S. Environmental Protection Agency (EPA) identifies sediment as the single most widespread water contaminant affecting the beneficial uses of the Nation’s rivers and streams. The evaluation of water-quality as it...
Authors
Timothy P. Wilson, Cherie V. Miller, Evan A. Lechner
Report of the River Master of the Delaware River for the period December 1, 2015 - November 30, 2016 Report of the River Master of the Delaware River for the period December 1, 2015 - November 30, 2016
Executive Summary A Decree of the Supreme Court of the United States, entered June 7, 1954 (New Jersey v. New York, 347 U.S. 995), established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes the diversion of water from the Delaware River Basin and requires compensating releases from reservoirs owned by New York City to be made...
Authors
Kendra L. Russell, William J. Andrews, Vincent J. DiFrenna, J. Michael Norris, Mason
The 3D Elevation Program—Supporting Mississippi's economy The 3D Elevation Program—Supporting Mississippi's economy
Introduction Mississippi has a dispersed population of nearly three million residents in an area of approximately 48,400 square miles and has a favorable climate for agriculture, with abundant precipitation and minimal extreme temperatures. The topography consists mostly of low hills and lowland plains, with the highest elevation about 800 feet above sea level. An exception is the nearly...
Authors
George Heleine
Groundwater flow model for the Des Moines River alluvial aquifer near Des Moines, Iowa Groundwater flow model for the Des Moines River alluvial aquifer near Des Moines, Iowa
Des Moines Water Works (DMWW) is a regional municipal water utility that provides residential and commercial water resources to about 600,000 customers in Des Moines, Iowa, and surrounding municipalities in central Iowa. DMWW has identified a need for increased water supply and is exploring the potential for expanding groundwater production capabilities in the Des Moines River alluvial...
Authors
Emilia L. Bristow, Kyle W. Davis
Comparative toxicity of emulsifiable concentrate and suspension concentrate formulations of 2′,5-dichloro-4′-nitrosalicylanilide ethanolamine salt Comparative toxicity of emulsifiable concentrate and suspension concentrate formulations of 2′,5-dichloro-4′-nitrosalicylanilide ethanolamine salt
The 2-aminoethanol salt of niclosamide (2′,5-dichloro-4′-nitrosalicylanilide) is a pesticide known as Bayluscide that is used in conjunction with TFM (4-nitro-3-[trifluoromethyl]phenol), also known as 3-trifluoromethyl-4-nitrophenol) to treat tributaries to the Great Lakes infested with invasive parasitic Petromyzon marinus (sea lamprey). Adding 0.5 to 2 percent Bayluscide with TFM can
Authors
James A. Luoma, Justin R. Schueller, Nicholas Schloesser, Courtney A. Kirkeeng, Samantha L. Wolfe
Assessment of undiscovered conventional oil and gas resources of the Black Sea area, 2023 Assessment of undiscovered conventional oil and gas resources of the Black Sea area, 2023
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 2.3 billion barrels of oil and 105.5 trillion cubic feet of gas in the Black Sea area.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake, Geoffrey S. Ellis, Thomas M. Finn, Michael H. Gardner, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller, Kristen R. Marra, Kira K. Timm, Scott S. Young