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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters 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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Rapid ʻŌhiʻa Death in Hawaiʻi Rapid ʻŌhiʻa Death in Hawaiʻi
Ceratocystis lukuohia and Ceratocystis huliohia are two newly recognized fungi that have arrived in Hawai‘i and are causing a serious vascular wilt and canker disease, respectively, of ‘ōhi‘a trees (Metrosideros polymorpha), the most common and important tree species in Hawai‘i. Management of these diseases has presented challenges due to unique etiological aspects and the exceptionally...
Authors
Philip Cannon, James B. Friday, Thomas Harrington, Lisa Keith, Marc Hughes, Rob Hauff, Flint Hughes, Ryan L. Perroy, David Benitez, Kylle Roy, Robert W. Peck, Sheri L. Smith, Blaine Luiz, Susan Cordell, Christian Giardina, Jennifer Juzwik, Stephanie G. Yelenik, Zachary Cook
Geochemical studies of the Green River Formation in the Piceance Basin, Colorado: II. Chemofacies from hierarchical cluster analysis Geochemical studies of the Green River Formation in the Piceance Basin, Colorado: II. Chemofacies from hierarchical cluster analysis
Hierarchical cluster analysis (HCA) was applied to a geochemical dataset representing the Eocene Green River Formation in the Piceance Basin of Colorado to identify chemofacies in core and outcrop samples from the basin margin and the basin center. The input dataset consisted of inductively coupled plasma optical emission spectroscopy and mass spectrometry and total organic carbon (TOC)...
Authors
Tengfei Wu, Jeremy Boak, Justin E. Birdwell
Geologic characterization and depositional history of the Uteland Butte member, Green River Formation, southwestern Uinta Basin, Utah Geologic characterization and depositional history of the Uteland Butte member, Green River Formation, southwestern Uinta Basin, Utah
The 15- to 65-m-thick informal Uteland Butte member of the Eocene Green River Formation represents the first widespread transgression of Lake Uinta in the Uinta Basin, Utah. This study assesses the spatial and temporal variation of Uteland Butte member deposits along a 40-km transect in the southwestern margin of the Uinta Basin using detailed measured sections, organic and inorganic...
Authors
Ryan D. Gall, Justin E. Birdwell, Riley Brinkerhoff, Michael D. Vanden Berg
Geochemical studies of the Green River Formation in the Piceance Basin, Colorado: I. Major, minor, and trace elements Geochemical studies of the Green River Formation in the Piceance Basin, Colorado: I. Major, minor, and trace elements
The Eocene Green River Formation contains the largest oil shale deposits in the world and is a welldocumented example of a lacustrine depositional system. In addition, mineral resources associated with oil shale in the Piceance Basin nahcolite [NaHCO3] and dawsonite [NaAl(CO3)(OH)2)] are of current and potential economic value, respectively. Detailed geochemical analysis across the basin...
Authors
Jeremy Boak, Tengfei Wu, Justin E. Birdwell
Geoelectric constraints on the Precambrian assembly and architecture of southern Laurentia Geoelectric constraints on the Precambrian assembly and architecture of southern Laurentia
Using images from an updated and expanded three-dimensional electrical conductivity synthesis model for the contiguous United States (CONUS), we highlight the key continent-scale geoelectric structures that are associated with the Precambrian assembly of southern Laurentia. Conductivity anomalies are associated with the Trans-Hudson orogen, the Penokean suture, the ca. 1.8–1.7 Ga...
Authors
Benjamin Scott Murphy, Paul A. Bedrosian, Anna Kelbert
Butler’s Gartersnake, Thamnophis butleri (Cope 1889) Butler’s Gartersnake, Thamnophis butleri (Cope 1889)
No abstract available.
Authors
Eric Thomas Hileman, Danielle R. Bradke
Massasauga, Sistrurus catenatus (Rafinesque 1818) Massasauga, Sistrurus catenatus (Rafinesque 1818)
No abstract available.
Authors
Richard S. King, Robert W. Hay, Billie C. Harrison, Eric Thomas Hileman, Craig S. Berg
Global review of the effects of small carnivores on threatened species Global review of the effects of small carnivores on threatened species
The absences of large carnivores from many ecosystems, human-induced landscape changes, and resource supplementation have been theorized to increase the abundance of small carnivore species around the world. Overabundant and/or unconstrained small carnivores can have significant effects on specific prey species that, in some cases, can cascade through entire ecosystems. Here, we review...
Authors
Michael V. Cove, Allan F. O’Connell
Management of diseases in free-ranging wildlife populations Management of diseases in free-ranging wildlife populations
Diseases are increasingly threatening the conservation of wildlife species. Spillover of pathogens into humans and domestic animals may negatively impact public health and the economy, requiring increased proactive management actions. The North American Wildlife Management Model provides the philosophical basis for managing wildlife and underpins all management options. Diseases in...
Authors
Mark L. Drew, Jonathan M. Sleeman
Seismic monitoring solutions for buildings Seismic monitoring solutions for buildings
This chapter introduces seismic monitoring of structural systems for buildings and begins with a historical background of this topic in the United States. After providing the historical context, the chapter reviews common seismic instrumentation issues such as utilization of data, code versus extensive instrumentation, free-field instrumentation, record synchronization requirements and...
Authors
Mehmet Celebi, Yavuz Kaya
Subaerial volcaniclastic deposits — Influences of initiation mechanisms and transport behaviour on characteristics and distributions Subaerial volcaniclastic deposits — Influences of initiation mechanisms and transport behaviour on characteristics and distributions
Subaerial volcaniclastic deposits are produced principally by volcanic debris avalanches, pyroclastic density currents, lahars, and tephra falls. Those deposits have widely ranging geomorphic and sedimentologic characteristics; they can mantle, modify, or create new topography, and their emplacement and subsequent reworking can have an outsized impact on the geomorphic and sedimentologic...
Authors
Jon J. Major
Antibiotic resistance in free-ranging wildlife Antibiotic resistance in free-ranging wildlife
In this chapter, we provide an overview of antimicrobial resistant (AMR) bacteria in wildlife through the presentation of general trends of occurrence among both captive and free-ranging wild animal populations, discussion of importance to human health and wildlife conservation, and identification of priority areas for future research and monitoring efforts. Once most commonly identified...
Authors
Andrew M. Ramey, Christina Ahlstrom