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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: 6173
Basin development along the Late Mesozoic and Cainozoic California Margin: A plate tectonic margin of subduction, oblique subduction and transform tectonics Basin development along the Late Mesozoic and Cainozoic California Margin: A plate tectonic margin of subduction, oblique subduction and transform tectonics
Along the Californian margin of the North American plate, the configuration and structural stability of late Mesozoic and Cainozoic basins are related to plate kinematics. Three tectonic regimes are recorded; orthogonal high-angle subduction, oblique low-angle subduction, and transform slip. During the first, regionally extensive forearc basins developed; during the second and third...
Authors
David G. Howell, James K. Crouch, H. G. Greene, David S. McCulloch, J. G. Vedder
Upper Cretaceous and lower Tertiary geology of the Chattahoochee River valley, western Georgia and eastern Alabama Upper Cretaceous and lower Tertiary geology of the Chattahoochee River valley, western Georgia and eastern Alabama
No abstract available.
Authors
Juergen Reinhardt, Thomas G. Gibson, Thorton L. Neathery, Robert W. Frey
Analysis of petroleum discovery data: A forecast of the date of peak production Analysis of petroleum discovery data: A forecast of the date of peak production
No abstract available.
Authors
D. H. Root, Emil D. Attanasi
Time-lapse cameras as an aid in studying grizzly bears in northwest Wyoming Time-lapse cameras as an aid in studying grizzly bears in northwest Wyoming
Time-lapse cameras were effective for gathering limited distribution and population data on grizzly bears (Ursus arctos) and black bears (Ursus americanus) in northwest Wyoming. Thirty-six stations, each consisting of a camera and a lure, were monitored for 551 camera-days; 83 rolls of film were exposed. Five different lures were tested. Thirty-one bears (5 grizzly, 25 black, 1 unknown...
Authors
Ronald E. Ball
Factors influencing human-grizzly bear interactions in a backcountry setting Factors influencing human-grizzly bear interactions in a backcountry setting
Interactins between humans and 7 species of wildlife, including grizzly bears (Ursus arctos horribilis), were investigated in backcountry areas of the Gallatin Range, Yellowstone National Park, during the summers of 1973 and 1974. Grizzly bear distribution, movements, and behavior and human behavior were examined. Because grizzlies utilized areas with elevations much in excess of the...
Authors
James M. Chester
Biological considerations in the delineation of critical habitat Biological considerations in the delineation of critical habitat
Grizzly bears (Ursus arctos) require large areas to satisfy their needs for food, cover, and space. They thrive best where disturbance by man is minimal. It is not a coincidence that the two major grizzly bear populations in the lower 48 states exist in large wilderness systems closely associated with two large national parks and a relatively large game preserve. If management objectives...
Authors
Richard R. Knight
Movements of radio-instrumented grizzly bears within the Yellowstone area Movements of radio-instrumented grizzly bears within the Yellowstone area
Grizzly bear (Ursus arctos horribilis) movement patterns were studied with the aid of 18 radio-instrumented grizzly bears in 1975 and 1976. Five bears gave minimal information because of death, transmitter failure, or loss of transmitters. Seasonal home range information is presented for 13 bears. Two bears, trapped inside Yellowstone National Park, included areas outside of the park in...
Authors
Steven L. Judd, Richard R. Knight
The natural food habits of grizzly bears in Yellowstone National Park, 1973-74 The natural food habits of grizzly bears in Yellowstone National Park, 1973-74
The natural food habits of grizzly bears (Ursus arctos horribilis Ord) in Yellowstone National Park were investigated in 1973-74 to identify the grizzly's energy sources and trophic level(s), nutrient use, and distribution. Food consumption was determined by scat analysis and field observations. Food quality and digestibility were estimated by chemical analysis. Grizzlies were...
Authors
Stephen Patrick Mealey
Technical considerations in water quality management Technical considerations in water quality management
No abstract available.
Authors
Robert T. Milhous
A guide to remote sensing information for wildlife biologists A guide to remote sensing information for wildlife biologists
No abstract available.
Authors
W.H. Anderson, W.A. Wentz, B.D. Treadwell
A tentative seven-day test for predicting effects of stress on populations of Daphnia pulex, Special Technical Publication 707 A tentative seven-day test for predicting effects of stress on populations of Daphnia pulex, Special Technical Publication 707
No abstract available at this time
Authors
J. G. Geiger, A.L. Buikema, J. Cairns
Antioxidants in compounded feeds Antioxidants in compounded feeds
No abstract available at this time
Authors
G. L. Rumsey