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.
Filter Total Items: 6071
An overview of environmental impacts and reclamation efforts at the Iron Mountain mine, Shasta County, California
No abstract available
Authors
James A Jacobs, Stephen M. Testa, Charles N. Alpers, D. Kirk Nordstrom
Assessment of inland fisheries: A vision for the future
No abstract available.
Authors
Steven J. Cooke, Angela Arthington, Scott A. Bonar, Shannon D. Bower, David B. Bunnell, Rose Entsua-Mensah, Simon Funge-Smith, John Koehn, Nigel Lester, Kai Lorenzen, So Nam, Robert Randall, Paul A. Venturelli, Ian G. Cowx
By-products of porphyry copper and molybdenum deposits
Porphyry Cu and porphyry Mo deposits are large to giant deposits ranging up to >20 and 1.6 Gt of ore, respectively, that supply about 60 and 95% of the world’s copper and molybdenum, as well as significant amounts of gold and silver. These deposits form from hydrothermal systems that affect 10s to >100 km3 of the upper crust and result in enormous mass redistribution and potential concentration of
Authors
David John, Ryan D. Taylor
Cascade Mountain Range in Oregon
The Cascade mountain system extends from northern California to central British Columbia. In Oregon, it comprises the Cascade Range, which is 260 miles long and, at greatest breadth, 90 miles wide (fig. 1). Oregon’s Cascade Range covers roughly 17,000 square miles, or about 17 percent of the state, an area larger than each of the smallest nine of the fifty United States. The range is bounded on th
Authors
David R. Sherrod
Cattle grazing in wetlands
Cattle grazing drives successional change in wetland vegetation by removing tall grasses and other vegetation. As a disturbance, cattle grazing in some ways resembles natural disturbances such as native mammal grazing and lightning-strike fire, which can support higher biodiversity in wetlands. To encourage rare and Red-Listed species, natural land managers sometimes incorporate a variety of techn
Authors
Beth A. Middleton
Complexity Theory
A complex system consists of many interacting parts, generates new collective behavior through self organization, and adaptively evolves through time. Many theories have been developed to study complex systems, including chaos, fractals, cellular automata, self organization, stochastic processes, turbulence, and genetic algorithms.
Authors
William H. K. Lee
Coral calcification and ocean acidification
Over 60 years ago, the discovery that light increased calcification in the coral plant-animal symbiosis triggered interest in explaining the phenomenon and understanding the mechanisms involved. Major findings along the way include the observation that carbon fixed by photosynthesis in the zooxanthellae is translocated to animal cells throughout the colony and that corals can therefore live as aut
Authors
Paul L. Jokiel, Christopher P. Jury, Ilsa B. Kuffner
Deserts
The deserts of California (Lead photo, Fig. 1) occupy approximately 38% of California’s landscape (Table 1) and consist of three distinct deserts: the Great Basin Desert, Mojave Desert, and Colorado Desert, the latter of which is a subdivision of the Sonoran Desert (Brown and Lowe 1980). The wide range of climates and geology found within each of these deserts result in very different vegetative c
Authors
Jayne Belnap, Robert H. Webb, Todd C. Esque, Matthew L. Brooks, Lesley A. DeFalco, James A. MacMahon
Drivers of Caribbean freshwater ecosystems and fisheries
No abstract available.
Authors
Thomas J. Kwak, Augustin C. Engman, Jesse R. Fischer, Craig G. Lilyestrom