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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Remote sensing of volcano deformation and surface change
Volcanic unrest and eruptions are associated with surface deformation and landscape change that can be detected, characterized, and tracked via remote sensing measurements. Subsurface processes, including magma accumulation, withdrawal, and transport, can cause displacements at the surface that are best tracked at subaerial volcanoes with interferometric synthetic aperture radar (InSAR) and Global
Authors
M. Poland
Amur Falcon Falco amurensis
No abstract available.
Authors
Jaume Orta, Guy M. Kirwan, Jeffrey S. Marks, Ryan C. Burner, Sundev Gombobaatar, Paul van Els, Chuenchom Hansasuta
Bornean Wren-Babbler Ptilocichla leucogrammica
No abstract available.
Authors
Ryan C. Burner, Guy M. Kirwan, Peter Pyle, Nigel J. Collar, Craig Robson
Bare-headed Laughingthrush Melanocichla calva
No abstract available.
Authors
Ryan C. Burner, Guy M. Kirwan, Peter Pyle, Nigel J. Collar, Craig Robson
Climate change
Amphibian ecology and distribution are strongly correlated with climate. Regional patterns of amphibian biodiversity are intimately linked to temperature, evapotranspiration rate, and clines in humidity. While amphibians are and will continue to be adversely affected by recent and projected changes in climate, research suggests that adaptation may happen more slowly than the expected rate of envir
Authors
David Bickford, Guinevere O.U. Wogan, Deanna H. Olson, K.S. Seshadri, Mark C. Urban, Ana Carnaval, John Measey, Jodi J.L. Rowley, Sean Rovito, Rudolf von May, Susan Walls
Ancient permafrost and past permafrost in the Northern Hemisphere
The existence and dynamics of permafrost depend on the prevailing climate conditions. Therefore, the study of ancient permafrost (existing since the Pleistocene or earlier) and past permafrost (Late Pleistocene or older permafrost that no longer exists) and their dynamics may inform about climate and environmental changes in the past. In this chapter, we provide a brief overview of characteristics
Authors
Thomas Opel, Pascal Bertran, Guido Grosse, Miriam C. Jones, Marc Luetscher, Lutz Schirrmeister, Kim Stadelmeier, Alexandra Veremeeva
Post-wildfire debris flows
Post-wildfire debris flows pose severe hazards to communities and infrastructure near and within recently burned mountainous terrain. Intense heat of wildfires changes the runoff characteristics of a watershed by combusting the vegetative canopy, litter, and duff, introducing ash into the soil and creating water repellant soils. Following wildfire, rainfall on bare ground is less able to infiltrat
Authors
Joseph Gartner, Jason W. Kean, Francis K. Rengers, Scott W. McCoy, Nina S. Oakley, Gary J. Sheridan
Numerical modeling of debris flows: A conceptual assessment
Real-world hazard evaluation poses many challenges for the development and application of numerical models of debris flows. In this chapter we provide a conceptual overview of physically based, depth-averaged models designed to simulate debris-flow motion across three-dimensional terrain. When judiciously formulated and applied, these models can provide useful information about anticipated depths,
Authors
Richard M. Iverson, David L. George
Environmental disturbances and restoration of salt marshes
Salt and brackish marshes (hereafter salt marshes) are the dominant coastal wetland in temperate and boreal intertidal settings. Human-enhanced disturbances threaten their persistence and functionality, with consequences to many ecosystem services. Restoration potentials are very site specific, varying by degree of disturbance and target goals. Global changes in climate and land-use will continue
Authors
Judith Weis, Lisamarie Windham-Myers
Partitioning of chemicals in aquatic organisms
Human populations have utilized heavy metals and persistent organic pollutants for their physiochemical properties in industrial, agricultural, and consumer goods for decades. Limited knowledge on their persistence and toxicological effects has resulted in organisms being exposed to some of the most problematic compounds ever generated by humans. Although overlap in exposure paradigms exists for h
Authors
Gavin N. Saari, Samreen Siddiqui, Susanne M. Brander
The geochemistry of continental hydrothermal systems
Hydrothermal systems on the continents are of great significance because they are primary sources of economically important metals and geothermal energy, they are tourist attractions, they support bathing and health resorts, and they host extreme life forms. Research on hot springs and their deposits provide clues to early life on Earth and possibly on Mars and have led to major breakthroughs in b
Authors
Shaul Hurwitz, Andri Stefánsson, Everett L. Shock, Barbara I. Kleine
Survey and monitoring methods for furbearers
There is a continuing need to assess the state (distribution and abundance) of furbearer populations throughout North America for state and provincial agencies to properly manage furbearers. With an expanding human population and continued changes in land-use practices, habitat loss and fragmentation, declines in natural prey, increases in disease transmission from domestic species, and increased
Authors
Eric M Gese, Patricia Terletzky, Hilary S. Cooley, Frederick F. Knowlton, Robert Charles Lonsinger