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.
Filter Total Items: 6155
Beacon Hill end moraine, Boston: new explanation of an important urban feature Beacon Hill end moraine, Boston: new explanation of an important urban feature
The usefulness of geology to engineers is in direct proportion to how well it helps us predict the subsurface; these predictions, in turn, depend on our knowledge of the geomorphic processes that molded the terrain. The uncertainties of interpretation are particularly great in glaciated terrain because our understanding of both glacial processes and history is so incomplete, a fact well
Authors
Clifford A. Kaye
Chemical control of the sea lamprey: the addition of a chemical to the environment Chemical control of the sea lamprey: the addition of a chemical to the environment
Abstract not submitted to date
Authors
C. M. Menzie, J. B. Hunn
Chemical pollutants in field-collected canvasback tissues, eggs, and food materials Chemical pollutants in field-collected canvasback tissues, eggs, and food materials
In 1972 studies began on the levels of environmental pollutants in canvasback tissues, eggs, and food items. The purpose of the studies were to determine if the levels of toxic chemicals found in canvasbacks were of the magnitude to cause problems affecting reproduction and survival. Overall, levels of organochlorine pesticides and PCB's were low in canvasbacks and their eggs. Some...
Authors
Donald H. White, M. P. Dieter, Rey C. Stendell
Comments on recent canvasback habitat trends and threats on Chesapeake Bay Comments on recent canvasback habitat trends and threats on Chesapeake Bay
During the last 22 years, the North American winter population of canvasbacks has fluctuated from 481,000 in 1955 to 179,000 in 1972. The Chesapeake Bay population has averaged 33 percent of the North American population and 64 percent of the Atlantic Flyway population. In Maryland, significant annual fluctuations have been recorded between the eastern and western shore of Chesapeake Bay...
Authors
Matthew C. Perry
Comparison of census data on Alouatta villosa (= palliata) from Costa Rica and Panama Comparison of census data on Alouatta villosa (= palliata) from Costa Rica and Panama
No abstract available at this time
Authors
P.G. Heltne, D.C. Turner, N.J. Scott
Distribution and abundance of aquatic vegetation in the upper Chesapeake Bay, 1971-1974 Distribution and abundance of aquatic vegetation in the upper Chesapeake Bay, 1971-1974
No abstract available.
Authors
J.A. Kerwin, R. E. Munro, W.W.A. Peterson
Distribution and abundance of non-waterfowl avifauna of the lower Columbia River Basin Distribution and abundance of non-waterfowl avifauna of the lower Columbia River Basin
No abstract available.
Authors
J. M. Scott, R.T. Reynolds
Dominance and dominance-related behavior in the whooping crane Dominance and dominance-related behavior in the whooping crane
No abstract available.
Authors
C. B. Kepler
Faunal remains from the excavated sites Faunal remains from the excavated sites
No abstract available.
Authors
C. L. Douglas
Foodborne parasites Foodborne parasites
No abstract available at this time
Authors
G.R. Healy, G.J. Jackson, Hoffman G. L. Lichtenfels J. R., T.C. Cheng
Incidence of lead shot in canvasbacks Incidence of lead shot in canvasbacks
During 1975 and 1976, 2,544 canvasbacks (Aythya valisineria) from North Dakota, Wisconsin, Illinois, and Maryland were flouroscoped to determine the incidence of body shot. A significant increase from west to east was detected in the incidence of shot for immatures from the four states. The incidence of shot in immatures after the 1975-76 hunting season was 18 percent in Maryland and 20...
Authors
Matthew C. Perry