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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.
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
Wildfire management on a human dominated landscape: The story of California chaparral wildfires Wildfire management on a human dominated landscape: The story of California chaparral wildfires
No abstract available.
Authors
Jon E. Keeley, C. J. Fotheringham
Assessing acid deposition: Advances in the state of science Assessing acid deposition: Advances in the state of science
NAPAP has a long history of conducting research related to acid deposition. Throughout the 1980s NAPAP supported a large number of research projects that confirmed the link between SO2 and NOx emissions and acidic lakes and streams hundreds of miles away. Recent research is confirming the tight link between emissions of SO2 and the amount of several different forms of sulfur in the...
Authors
B. Bloomer, R. Cook, C. Eagar, M. Fenn, R. Haeuber, Thomas G. Huntington, S. McLaughlin, Peter S. Murdoch, T. Saltman, D. Schmeltz, M. Streigel, C. Trettin
Results of the acid rain program: Status and trends of emissions and environmental impacts (1990–2002) Results of the acid rain program: Status and trends of emissions and environmental impacts (1990–2002)
Both SO2 and NOx emissions from power generation sources have significantly declined under Title IV. In 2002, SO2 emissions from Title IV-affected sources totaled 10.2 million tons and NOx emissions from all Title IV-affected sources totaled 4.5 million tons, down 35% and 33% respectively from 1990 levels. Sources in states with the highest emissions continue to reduce their emissions...
Authors
R. Cook, C. Eagar, M. Fenn, R. Haeuber, Thomas G. Huntington, S. McLaughlin, M. Ross, T. Saltman, D. Schmeltz, M. Streigel, C. Trettin
Restoration monitoring of riverine forests Restoration monitoring of riverine forests
No abstract available.
Authors
David Merkey, Bobby D. Keeland
Redhead Aythya americana Redhead Aythya americana
No abstract available.
Authors
Thomas C. Michot, Marc C. Woodin
Coastal forests of the Gulf of Mexico: A description and some thoughts on their conservation Coastal forests of the Gulf of Mexico: A description and some thoughts on their conservation
Millions of Nearctic-Neotropical landbirds move through the coastal forests of the Gulf of Mexico each spring and autumn as they migrate across and around the gulf. Migration routes in the gulf region are not static—they shift year to year and season to season according to prevailing wind patterns. Given the dynamic nature of migration routes, coastal forests around the Gulf of Mexico...
Authors
Wylie C. Barrow, Lori Johnson-Randall, M.S. Woodrey, J. Cox, E. Ruelas I., C. M. Riley, R.B. Hamilton, C. Eberly
Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis) Mycobacteriosis in Chesapeake Bay Striped Bass (Morone saxatilis)
No abstract available.
Authors
Christopher A. Ottinger, Vicki S. Blazer, Christine L. Densmore, David T. Gauthier, H. Kator, F. M. Panek, M. W. Rhodes, W. Vogelbein
Understanding the spatial heterogeneity of global environmental change in mountain regions Understanding the spatial heterogeneity of global environmental change in mountain regions
One of the challenges for global environmental change research is to understand how future climate changes will be expressed in mountain regions. The physiographic complexity of mountains creates environments that can be highly variable over relatively short distances. This spatial heterogeneity reflects a hierarchy of environmental controls. At regional scales, insolation and...
Authors
Sarah Shafer, Patrick J. Bartlein, Cathy Whitlock
Debris flows at Mount St. Helens, Washington, USA Debris flows at Mount St. Helens, Washington, USA
No abstract available.
Authors
Jon J. Major, Thomas C. Pierson, Kevin M. Scott
Cattail sleuths use forensic science to better understand spread of an invasive species Cattail sleuths use forensic science to better understand spread of an invasive species
No abstract available.
Authors
Joy Marburger, Steve Travis, Steve K. Windels
Birth of the lower Colorado River–Stratigraphic and geomorphic evidence for its inception near the conjunction of Nevada, Arizona, and California Birth of the lower Colorado River–Stratigraphic and geomorphic evidence for its inception near the conjunction of Nevada, Arizona, and California
A detailed record of the late Cenozoic history of the lower Colorado River can be inferred from alluvial and (likely) lacustrine stratigraphy exposed in dissected alluvial basins below the mouth of the Grand Canyon. Numerous sites in Mohave, Cottonwood, and Detrital valleys contain stratigraphic records that directly bear on the mode, timing, and consequences of the river’s inception and
Authors
Kyle House, Keith A. Howard, J. W. Bell, M. E. Perkins, J. E. Faulds, A. Brock