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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.
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Mapping and monitoring Mt. Graham Red Squirrel habitat with GIS and thematic mapper imagery
To estimate the Mt. Graham red squirrel (MGRS) population, personnel visit a proportion of middens each year to determine their occupancy (Snow in this vol.). The method results in very tight confidence intervals (high precision), but the accuracy of the population estimate is dependent upon knowing where all the middens are located. I hypothesized that there might be areas outside the survey boun
Authors
James R. Hatten, John L. Koprowski
Rivers and streams: Physical setting and adapted biota
Streams and rivers are enormously important, with their ecological, and economic value, greatly outweighing their significance on the landscape. Lotic ecology began in Europe with a focus on the distribution, abundance, and taxonomic composition of aquatic organisms and in North American with a focus on fishery biology. Since 1980, stream/river research has been highly interdisciplinary, involving
Authors
Margaret A. Wilzbach, K.W. Cummins
Dynamics of magma supply to Kilauea volcano, Hawai‘i: Integrating seismic, geodetic and eruption data
We focus on movement of magma beneath Kīlauea from the long summit eruption in 1967–1968 through the first historical sustained eruption on the east rift zone (Mauna Ulu 1969–1974), ending with the occurrence of a magnitude 7.2 earthquake beneath Kīlauea's eastern south flank. Magma from the Hawai‘iian hot spot continuously moves upward to summit storage and drives seaward spreading of Kīlauea's s
Authors
Thomas L. Wright, F. W. Klein
Devonian carbonate platform of eastern Nevada: Facies, surfaces, cycles, sequences, reefs, and cataclysmic Alamo Impact Breccia
Devonian limestone and dolostone formations are superbly exposed in numerous mountain ranges of southeastern Nevada. The Devonian is as thick as 1500 m there and reveals continuous exposures of a classic, long-lived, shallow-water carbonate platform. This field guide provides excursions to Devonian outcrops easily reached from the settlement of Alamo, Nevada, ~100 mi (~160 km) north of Las Vegas.
Authors
John E. Warme, Jared R. Morrow, Charles Sandberg
Update on North America shale-gas exploration and development
No abstract available.
Authors
David G. Hill, John B. Curtis, Paul G. Lillis
Biogeochemical mechanisms of arsenic mobilization and sequestration
This chapter contains sections titled:IntroductionSources of Arsenic in the EnvironmentRedox Cycling of ArsenicEffect of Organic Carbon on Arsenic CyclingArsenic Sequestration: Precipitation and AdsorptionArsenic Mobilization: Sediment Diagenesis and Reductive DissolutionCase Study: Haiwee ReservoirConclusionsReferences
Authors
Kate M. Campbell, J. G. Hering
Groundwater: Pumping and land subsidence
No abstract available.
Authors
Steven P. Phillips, Devin L. Galloway
Origin, conditions, and timing of gas generation in the Lewis Shale, San Juan Basin, New Mexico
No abstract available.
Authors
Neil S. Fishman, Thomas Parris, Donald L. Hall, Paul G. Lillis, Mark J. Pawlewicz
Solute transport along stream and river networks
This chapter contains sections titled:IntroductionReview of current knowledgeLinking transport processes with the fluvial geomorphic templateForward-looking perspectiveAcknowledgementsReferences
Authors
Michael N. Gooseff, Kenneth E. Bencala, Steven M Wondzell
Conservation status of the Colorado Plateau using southwest regional gap analysis stewardship data
No abstract available
Authors
Andrea E. Ernst, Julie S. Prior-Magee
Implications for Martian polar processes, Ch. 25
No abstract available.
Authors
Timothy N. Titus, W. M. Calvin, H. H. Kieffer, Yves Langevin, Thomas H. Prettyman
Reproductive impairment of Great Lakes lake trout by dioxin-like chemicals: Chapter 21
No abstract available.
Authors
Donald E. Tillitt, Philip S. Cook, John P. Giesy