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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.
Filter Total Items: 6158
Measuring rotational ground motions in seismological practice Measuring rotational ground motions in seismological practice
No abstract available.
Authors
William H. K. Lee, John R. Evans, B. S. Huang, C. R. Hutt, C.-J. Lin, C.-C. Liu, R. L. Nigbor
Mechanics of debris flows and rock avalanches: Chapter 43 Mechanics of debris flows and rock avalanches: Chapter 43
Debris flows are geophysical phenomena intermediate in character between rock avalanches and flash floods. They commonly originate as water-laden landslides on steep slopes and transform into liquefied masses of fragmented rock, muddy water, and entrained organic matter that disgorge from canyons onto valley floors. Typically including 50%–70% solid grains by volume, attaining speeds >10...
Authors
Richard M. Iverson
Mediterranean-type climate ecosystems and fire Mediterranean-type climate ecosystems and fire
No abstract available.
Authors
Jon E. Keeley, William J. Bond, Ross A. Bradstock, Juli G. Pausas, Philip W. Rundel
Mercury cycling in terrestrial watersheds Mercury cycling in terrestrial watersheds
This chapter discusses mercury cycling in the terrestrial landscape, including inputs from the atmosphere, accumulation in soils and vegetation, outputs in streamflow and volatilization, and effects of land disturbance. Mercury mobility in the terrestrial landscape is strongly controlled by organic matter. About 90% of the atmospheric mercury input is retained in vegetation and organic...
Authors
James B. Shanley, Kevin Bishop
Metadata requirements and templates Metadata requirements and templates
No abstract available.
Authors
Karl Heidemann
Methods Methods
Detecting declines in population size is one of the highest priorities of the shorebird initiatives in Canada and the United States. The quantitative goal is 80% power to detect a 50% decline, occurring during no more than 20 years, with a significance level of 0.15, using a two-tailed test, and incorporating effects of potential bias into the estimator. The Arctic PRISM program was...
Authors
Jonathan Bart, Victoria Johnston, Paul A. Smith, Ann Manning, Jennie Rausch, Stephen Brown
Modelling reintroduced populations: The state of the art and future directions Modelling reintroduced populations: The state of the art and future directions
No abstract available.
Authors
Doug P. Armstrong, Michelle H. Reynolds
Natural disturbances to mangroves Natural disturbances to mangroves
No abstract available.
Authors
Thomas J. Smith, K.R.T. Whelan
Navigational inlets are conduits for land-based sources of pollution Navigational inlets are conduits for land-based sources of pollution
No abstract available.
Authors
J.C. Flutch, Dale W. Griffin, Erin K. Lipp
Neotropical coastal wetlands Neotropical coastal wetlands
The Neotropical region, which includes the tropical Americas, is one of the world's eight biogeographic zones. It contains some of the most diverse and unique wetlands in the world, some of which are still relatively undisturbed by humans. This chapter focuses on the northern segment of the Neotropics (south Florida, the Caribbean islands, Mexico, and Central America), an area that spans...
Authors
Karen L. McKee
Nonsteroidal anti-inflammatory drugs in raptors Nonsteroidal anti-inflammatory drugs in raptors
The use of analgesia has become standard, and appropriate, practice in avian medicine. As in mammals, pain control in avian patients is usually accomplished with opioids and nonsteroidal anti-inflammatory drugs (NSAIDs) used singly or in combination for a multimodal approach. Despite their usefulness, widespread use, and relative safety in clinical use, few controlled studies in birds...
Authors
J. Lindsay Oaks, Carol U. Meteyer
North slope of Alaska North slope of Alaska
No abstract available.
Authors
Jonathan Bart, Stephen Brown, Brad Andres, Robert Platte, Ann Manning