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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: 6164
Trophic levels and trophic relationships of seabirds in the Gulf of Alaska Trophic levels and trophic relationships of seabirds in the Gulf of Alaska
No abstract available.
Authors
G.A. Sanger
Unconformable sequence boundaries at Deep Sea Drilling Project Site 612, New Jersey Transect: their characteristics and stratigraphic significance Unconformable sequence boundaries at Deep Sea Drilling Project Site 612, New Jersey Transect: their characteristics and stratigraphic significance
No abstract available.
Authors
C. Wylie Poag, Doris Low
Use of hatcheries in the management of Pacific anadromous salmonids Use of hatcheries in the management of Pacific anadromous salmonids
No abstract available.
Authors
J.A. Lichatowich, J.D. McIntyre
Use of slope, aspect, and elevation maps derived from digital elevation model data in making soil surveys Use of slope, aspect, and elevation maps derived from digital elevation model data in making soil surveys
Maps showing different classes of slope, aspect, and elevation were developed from U.S. Geological Survey digital elevation model data. The classes were displayed on clear Mylar at 1:24 000-scale and registered with topographic maps and orthophotos. The maps were used with aerial photographs, topographic maps, and other resource data to determine their value in making order-three soil...
Authors
A. A. Klingebiel, E. H. Horvath, D. G. Moore, W.U. Reybold
Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys
A methodology has been developed to create a spatial database by referencing digital elevation, Landsat multispectral scanner data, and digitized soil premap delineations of a number of adjacent 7.5-min quadrangle areas to a 30-m Universal Transverse Mercator projection. Slope and aspect transformations are calculated from elevation data and grouped according to field office...
Authors
E.A. Horvath, E. A. Fosnight, A. A. Klingebiel, D. G. Moore, J.E. Stone
Waterfowl of Chesapeake Bay Waterfowl of Chesapeake Bay
No abstract available.
Authors
Matthew Perry
Wildlife and pest control in the sagebrush ecosystem: Basic ecology and management considerations Wildlife and pest control in the sagebrush ecosystem: Basic ecology and management considerations
No abstract available.
Authors
L. C. McEwen, L.R. DeWeese
Winter movements of American black ducks in relation to natural and impounded wetlands in New Jersey Winter movements of American black ducks in relation to natural and impounded wetlands in New Jersey
Radio telemetry was used to follow the movements and habitat use of female American Black ducks (Anas rubripes) trapped at Brigantine Division. Edwin B. Forsythe NWR (BNW) during three field seasons (1983-1896). Use of the BNWR impoundments was strongly associated with open vs. closed hunting seasons and with presence or absence of ice cover. Black ducks primarily used the impoundments...
Authors
M.J. Conroy, G.R. Costanzo, Daniel B. Stotts
Summary of the conference and information needs for mitigation in wetlands Summary of the conference and information needs for mitigation in wetlands
No abstract available.
Authors
Millicent L. Quammen
Cretaceous paleoceanography of the western North Atlantic Ocean Cretaceous paleoceanography of the western North Atlantic Ocean
In this paper we summarize available information on the Cretaceous lithostratigraphy and paleoceanography of the western North Atlantic. The data and some of our interpretations draw in large part on papers published in the Deep Sea Drilling Project (DSDP) volumes. We have attempted to cite relevant references when possible, but space limitations make it difficult to give proper credit...
Authors
Michael A. Arthur, Walter E. Dean
Resource potential of the western North Atlantic Basin Resource potential of the western North Atlantic Basin
We here consider the petroleum resources only of the off shelf portion of the western North Atlantic Ocean. Very little information is available for this region; off the eastern United States, only four petroleum exploration holes have been drilled in one restricted area seaward of the shelf, off the Baltimore Canyon trough. However, by interpreting seismic reflection profiles and...
Authors
William P. Dillon, Frank T. Manheim, L.F. Jansa, Gudmundur Palmason, Brian E. Tucholke, Richard S. Landrum