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: 6197
The Crown of the Continent: Striving for ecosystem sustainability The Crown of the Continent: Striving for ecosystem sustainability
No abstract available.
Authors
Tony Prato, Daniel B. Fagre
The effects of acidic mine drainage from historical mines in the Animas River watershed, San Juan County, Colorado—What is being done and what can be done to improve water quality? The effects of acidic mine drainage from historical mines in the Animas River watershed, San Juan County, Colorado—What is being done and what can be done to improve water quality?
Historical production of metals in the western United States has left a legacy of acidic drainage and toxic metals in many mountain watersheds that are a potential threat to human and ecosystem health. Studies of the effects of historical mining on surface water chemistry and riparian habitat in the Animas River watershed have shown that cost-effective remediation of mine sites must be...
Authors
Stanley E. Church, Robert J. Owen, Paul Von Guerard, Philip L. Verplanck, Briant A. Kimball, Douglas B. Yager
The geochemistry of pesticides The geochemistry of pesticides
The mid-1970s marked a major turning point in human history, for it was at that moment that the ability of the Earth’s ecosystems to absorb most of the biological impacts of human activities appears to have been exceeded by the magnitude of those impacts. This conclusion is based partly upon estimates of the rate of carbon dioxide emission during the combustion of fossil fuels, relative...
Authors
Jack E. Barbash
The National Elevation Dataset The National Elevation Dataset
No abstract available.
Authors
D.B. Gesch
Tower counts Tower counts
Counting towers provide an accurate, low-cost, low-maintenance, low-technology, and easily mobilized escapement estimation program compared to other methods (e.g., weirs, hydroacoustics, mark-recapture, and aerial surveys) (Thompson 1962; Siebel 1967; Cousens et al. 1982; Symons and Waldichuk 1984; Anderson 2000; Alaska Department of Fish and Game 2003). Counting tower data has been...
Authors
Carol Ann Woody
Volcanic eruptions, hazards, and mitigation Volcanic eruptions, hazards, and mitigation
No abstract available.
Authors
J. Feldman, R.I. Tilling
Volcano-electromagnetic effects Volcano-electromagnetic effects
Volcano-electromagnetic effects—electromagnetic (EM) signals generated by volcanic activity—derive from a variety of physical processes. These include piezomagnetic effects, electrokinetic effects, fluid vaporization, thermal demagnetization/remagnetization, resistivity changes, thermochemical effects, magnetohydrodynamic effects, and blast-excited traveling ionospheric disturbances...
Authors
Malcolm J. S. Johnston
Waterbirds of the Chesapeake Bay region: An introduction Waterbirds of the Chesapeake Bay region: An introduction
No abstract available.
Authors
R.M. Erwin, G.M. Haramis, Matthew C. Perry, B.D. Watts
Weirs: Counting and sampling adult salmonids in streams and rivers Weirs: Counting and sampling adult salmonids in streams and rivers
Weirs—which function as porous barriers built across stream—have long been used to capture migrating fish in flowing waters. For example, the Netsilik peoples of northern Canada used V-shaped weirs constructed of river rocks gathered onsite to capture migrating Arctic char Salvelinus alpinus (Balikci 1970). Similarly, fences constructed of stakes and a latticework of willow branches or...
Authors
Christian E. Zimmerman, Laura M. Zabkar
Workshop: Western hemisphere network of bird banding programs Workshop: Western hemisphere network of bird banding programs
Purpose: To promote collaboration among banding programs in the Americas. Introduction: Bird banding and marking provide indispensable tools for ornithological research, management, and conservation of migratory birds on migratory routes, breeding and non-breeding grounds. Many countries and organizations in Latin America and the Caribbean are in the process of developing or have...
Authors
A. Celis-Murillo
Fen management and research perspectives: An overview Fen management and research perspectives: An overview
No abstract available.
Authors
Beth A. Middleton, A. Grootjans, K. Jensen, Harry Olde Venterink, Katalin Margoczi