Book Chapters
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 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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Chapter 1: Study area description
The boundary for the Wyoming Basins Ecoregional Assessment (WBEA) was largely determined by the co-occurrence of some of the largest tracts of intact sagebrush (Artemisia spp.) remaining in the western United States with areas of increasing resource extraction. The WBEA area includes two ecoregions in their entirety, Wyoming Basins and Utah-Wyoming Rocky Mountains, and portions of two others (Sout
Authors
Mary M. Rowland, Matthias Leu
Chapter 2: Sagebrush-associated species of conservation concern
Selection of species of concern is a critical early step in conducting broad-scale ecological assessments for conservation planning and management. Many criteria can be used to guide this selection, such as conservation status, existing knowledge base, and association with plant communities of interest. In conducting the Wyoming Basins Ecoregional Assessment (WBEA), we followed a step-wise process
Authors
Mary M. Rowland, Lowell H. Suring, Matthias Leu, Steven T. Knick, Michael J. Wisdom
Salmo trutta L. (brown trout)
No abstract available.
Authors
Angus McIntosh, Peter McHugh, Phaedra Budy
A review of Alabama lignite deposits
This review of Alabama lignite deposits is a part of the U.S. Geological Survey (USGS) National Coal Resource Assessment (NCRA) of the Gulf Coast region (see Ruppert et al., 2002; Dennen, 2009; and other chapters of this publication). Because lignite is not currently mined in Alabama, a detailed assessment of the state was not made, and only a review is presented in this chapter.Lignite beds are f
Authors
Claire E. Aubourg
A review of lignite resources of western Tennessee and the Jackson Purchase area, western Kentucky
This review of the lignite deposits of western Tennessee and the Jackson Purchase area in western Kentucky (Figure 1) is an updated report on part of the U.S. Geological Survey's National Coal Resource Assessment of the Gulf Coastal Plain Coal Province (see Ruppert et al., 2002; Hackley et al., 2006; Dennen, 2009; and other chapters of this publication). Lignite deposits of western Kentucky and Te
Authors
Paul C. Hackley, Peter D. Warwick, Roger E. Thomas, Douglas J. Nichols
A review of the lignite resources of Arkansas
This review of the lignite resources of Arkansas is a part of the U.S. Geological Survey's (USGS) National Coal Resource Assessment (NCRA) of the Gulf Coastal Plain Coal Province, which also includes coal-bearing areas in the states of Texas, Louisiana, Alabama, Mississippi, Tennessee, and Kentucky (see Ruppert et al., 2002; Dennen, 2009; and other chapters of this publication). Lignite mining is
Authors
Paul C. Hackley, Jason C. Willett, Peter D. Warwick, S.J. Law, Douglas J. Nichols
A synthesis: Informing collaborative conservation and management of Colorado Plateau resources
No abstract available.
Authors
Miguel L. Villarreal, Charles van Riper, Carena J. van Riper, Matthew J. Johnson, S. Shane Selleck
Abnormal alligators and organochlorine pesticides in Lake Apopka, Florida
No abstract available.
Authors
Allan R. Woodward, H. Franklin Percival, R. Heath Rauschenberger, Timothy S. Gross, Kenneth G. Rice, Roxanne Conrow
Alien species and fire
A large diversity of alien plants is found in most mediterranean-type climate (MTC) regions and fire is sometimes closely linked to their ability to invade natural ecosystems. This is a concern because aliens often upset natural ecosystem processes, and thus are a major management concern. These five regions not only differ in their contributions of non-native plant species to other regions, but a
Authors
Jon E. Keeley, William J. Bond, Ross A. Bradstock, Juli G. Pausas, Philip W. Rundel
Applications of Groundwater Helium
Helium abundance and isotope variations have widespread application in groundwater-related studies. This stems from the inert nature of this noble gas and the fact that its two isotopes ? helium-3 and helium-4 ? have distinct origins and vary widely in different terrestrial reservoirs. These attributes allow He concentrations and 3He/4He isotope ratios to be used to recognize and quantify the infl
Authors
Justin T. Kulongoski, David R. Hilton
Applications of selective ion exchange for perchlorate removal, recovery, and environmental forensics
Perchlorate (ClO4-) is a widespread contaminant found in drinking water and groundwater that has caused far-reaching ramifications ranging from public health issues to potential liabilities arising from environmental clean-up requirements.
The chapter summarizes recent developments in highly selective and regenerable ion exchange technologies for removing ClO4- from contaminated water. The technol
Authors
Baohua Gu, John K. Böhlke, Neil C. Sturchio, Paul B. Hatzinger, Andrew Jackson, Abelardo D. Beloso, Linnea J. Heraty, Yongrong Bian, Xin Jiang, Gilbert M. Brown
Asbestos
The term asbestos is a generic designation referring usually to six types of naturally occurring mineral fibers that are or have been commercially exploited. These fibers belong to two mineral groups: serpentines and amphiboles. The serpentine group is represented by a single asbestiform variety-chrysotile. There also are five commercial asbestiform varieties of amphiboles-anthophyllite asbestos,
Authors
Robert Virta