All Publications
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Filter Total Items: 171114
Conservation plan for golden eagles in eastern North America
No abstract available.
Authors
Todd E. Katzner, Tricia A. Miller, Andrew J. Dennhardt, Maxwell Field, Thomas Wittig, Elizabeth Mojica, Michael J. Lanzone, Mark S. Martell, Richard M. Bailey, Andrew Berry, Renee Dillard, David Brandes, David F. Brinker, Bracken Brown, Erynn M. Call, Jeffrey Cooper, Adam E. Duerr, Christopher J Farmer, Shilo K. Felton, Julie Garvin, Rolf Gubler, Sergio R. Harding, Michael Jones, Christine A. Kelly, Hardy Kern, Netawn Kiogima, Craig A. Koppie, Jerome Lemaitre, Mercedes Maddox, Scott Mehus, Joel Merriman, Amy Mitchell, Bill Parsons, Evan Patrick, Nora P. Pennarola, Margaret Rheude, Casey Rucker, Scott Rush, Ryan Schmitz, Hank Seltzer, Vincent A. Slabe, Eric C. Soehren, Johnny Wills
The haunting raptor: Yellowstone’s golden eagles
For many who live in North America, when picturing an eagle, the image of a large magnificent bird with a distinct white head and tail comes to mind. Rightfully, the bald eagle has garnered much attention as a national symbol of the United States (US), nearly brought to extinction from widespread organochlorine pesticide use (e.g., DDT, dichloro- diphenyl- trichloroethane; Anderson 1972, Baril et
Authors
David B. Haines, Douglas W. Smith, Todd E. Katzner, Victoria J. Dreitz
Evaluation of stream capture related to groundwater pumping, Lower Humboldt River Basin, Nevada
The Humboldt River Basin is the only river basin that is contained entirely within the State of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. The objective of this study is to estimate capture and storage change caused by groundwater withdrawals in the
Authors
Cara A. Nadler, Susan C. Rybarski, Hai Pham
Conventional rare earth element mineral deposits: The global landscape
Four conventional mineral deposit types—carbonatite, alkaline igneous, heavy mineral sand, and regolith-hosted ion-adsorption clay deposits—currently supply global markets with the rare earth elements (REEs) and rare earth oxides (REOs) necessary to meet the technological needs of global communities. The unique properties of REEs make them useful in a wide variety of applications, such as alloys,
Authors
Nora K. Foley, Robert A. Ayuso
Energy-related rare earth element sources
Energy-related materials such as coal, coal-bearing wastes, and coal combustion products are traditionally thought of as sources or by-products of electric power generation. Increasingly, these materials are considered resources for their content of rare earth elements (REEs) and other useful constituents. In this chapter, we examine the distribution, modes of occurrence, and relative extractabili
Authors
Allan Kolker, Liliana Lefticariu, Steven T. Anderson
Groundwater discharge by evapotranspiration from the Amargosa Wild and Scenic River and contributing areas, Inyo and San Bernardino Counties, California
The Amargosa Wild and Scenic River, located in the southwestern Mojave Desert in Inyo and San Bernardino Counties, California, is a Federally protected waterway that supports the biodiversity of the region. Water in the river primarily comes from interbasin groundwater flow that originates as precipitation in the Spring Mountains. The precipitation enters the regional groundwater system and flows
Authors
Michael T. Pavelko, Nancy A. Damar
Atmospheric correction intercomparison of hyperspectral and multispectral imagery over agricultural study sites
In this research effort we assess the performance of atmospheric correction-based surface reflectance (SR) retrievals from two satellite image sources, one with very high spatial resolution (VHR) (
Authors
Brian T Lamb, W. Dean Hively, Jyoti Jennewein, Alison Thieme, Alex M. Soroka
Connecting flood-related fluvial erosion and deposition with vulnerable downstream road-stream crossings
Fluvial erosion is increasingly responsible for infrastructure and building damages associated
with floods as the intensity of extreme rainfalls hit rural and urban rivers in a variety of climate
settings across the United States. Extreme floods in 2016 and 2018 caused widespread culvert
blockages and road failures, including extensive damage along steep tributaries and ravines in
the Marengo Rive
Authors
Faith Fitzpatrick, Kyle H. Magyera, Jason Laumann, Clement Larson, Stephanie Rockwood, Eric D. Dantoin, Tom Hollenhorst, Brandon Krumwiede, Brandon Ray Nelson, Julia G. Prokopec, Keegan Eland Johnson
Preparing for future changes: Louisiana's Coast
Cooperator publication summarizing USGS publications in collaboration with Water Institute that are being used to inform Louisiana coastal policy.
Authors
Timothy Carruthers, Camille Stagg, Melissa Millman Baustian
Bedform distributions and dynamics in a large, channelized river: Implications for benthic ecological processes
Sand bedforms are fundamental habitat elements for benthic fish in large, sand-bedded rivers and are hypothesized to provide flow refugia, food transport, and ecological disturbance. We explored bedform distributions and dynamics in the Lower Missouri River, Missouri, with the objective of understanding the implications of these features for benthic fish habitat, particularly for the endangered pa
Authors
Caroline M. Elliott, R. B. Jacobson, Bruce Call, Maura O Roberts
Sea-ice conditions predict polar bear land use around military installations in Alaska
Polar bears (Ursus maritimus) are threatened by sea-ice loss due to climate change, which is concurrently opening the Arctic to natural resource extraction and a broader scope of national security responsibilities. Mitigating the risk of human–bear conflicts is an emerging challenge as many polar bears spend longer ice-free summers on land where they have limited access to food and come into more
Authors
Eric V. Regehr, Kristin L. Laidre, Todd C. Atwood, Harry Stern, Benjamin R. Cohen
Hydrothermal monazite and xenotime chemistry as genetic discriminators for intrusion-related and orogenic gold deposits: Implications for an orogenic origin of the Pogo gold deposit, Alaska
Attempts to geochemically distinguish between metamorphic-hydrothermal systems that form orogenic gold deposits and both reduced and oxidized magmatic-hydrothermal systems using isotopes or metal associations have proven ambiguous, particularly for orogenic gold and reduced intrusion-related gold systems. The absence of conclusive geochemical discriminators and the overlap in geologic characterist
Authors
Ryan Taylor, Garth E. Graham, Heather A. Lowers