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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.

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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.

Filter Total Items: 84803

West Nile virus (avian) case definition for wildlife West Nile virus (avian) case definition for wildlife

Diagnostic laboratories receive carcasses and samples for diagnostic evaluation and pathogen/toxin detection. Case definitions bring clarity and consistency to the evaluation process. Their use within and between organizations allows more uniform reporting of diseases and etiologic agents. The intent of a case definition is to provide scientifically based criteria for determining (a) if...
Authors
Stephane Lair, Valerie I. Shearn-Bochsler, Marnie Zimmer
By
Ecosystems Mission Area, National Wildlife Health Center

Neonicotinoids made easy Neonicotinoids made easy

No abstract
Authors
Shipra Shukla, Elias Tejeda
By
Water Resources Mission Area, California Water Science Center

Evaluation of 2-D shear-wave velocity models and VS30at six strong-motion recording stations in southern California using multichannel analysis of surface waves and refraction tomography Evaluation of 2-D shear-wave velocity models and VS30at six strong-motion recording stations in southern California using multichannel analysis of surface waves and refraction tomography

To better understand the potential for amplified ground shaking at sites that house critical infrastructure, the U.S. Geological Survey (USGS) evaluated shear-wave velocities (VS) at six strong-motion recording stations in Southern California Edison facilities in southern California. We calculated VS30 (time-averaged shear-wave velocity in the upper 30 meters [m]), which is a parameter...
Authors
Joanne H. Chan, Rufus D. Catchings, Mark R. Goldman, Coyn J. Criley, Robert R. Sickler
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center

Collaborative mapping and characterization offshore of the Hawaiian Islands Collaborative mapping and characterization offshore of the Hawaiian Islands

No abstract available.
Authors
Mark Mueller, Cheryl L. Morrison, Derek Sowers, Christopher Romanek
By
Eastern Ecological Science Center

Adaptive capacity of Inland Fishes Workshop Summary Adaptive capacity of Inland Fishes Workshop Summary

Adaptive capacity (AC), defined as the ability of a species to cope with or adjust to climate change, is a critical determinant of species vulnerability and has been widely applied in wildlife contexts (IPCC 2014, Thurman et al. 2020). This process can be further defined with respect to intrinsic capacities versus extrinsic constraints on AC (Beever et al. 2016, Thurman et al. 2020)...
Authors
Holly Susan Embke, David B. Bunnell, Olivia E. LeDee, Cory Suski

Nutrient chemistry in the Elizabeth Lake subwatershed—Effects of onsite wastewater treatment systems on groundwater and lake water quality, Los Angeles County, California Nutrient chemistry in the Elizabeth Lake subwatershed—Effects of onsite wastewater treatment systems on groundwater and lake water quality, Los Angeles County, California

Nutrient (nitrogen [N] and phosphorus [P] chemistry) downgradient from onsite wastewater treatment system (OWTS) was evaluated with a groundwater study in the area surrounding Elizabeth Lake, the largest of three sag lakes within the Santa Clara River watershed of Los Angeles County, California. Elizabeth Lake is listed on the “303 (d) Impaired Waters List” for excess nutrients and is...
Authors
Adelia M McGregor, Joseph L. Domagalski, Krishangi D. Groover, Angela M. Hansen, Anthony A. Brown
By
Water Resources Mission Area, California Water Science Center
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