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: 6063
Water quality management and the distribution of emission rights by sealed tender markets
No abstract available.
Authors
Emil D. Attanasi
Federal agency requirements example—Department of the Interior
No abstract available.
Authors
G. A. Thorley
Thermal effects on fish ecology
Of all the environmental factors that influence aquatic organisms, temperature is the most all-pervasive. There is always an environmental temperature while other factors may or may not be present to exert their effects. Fish are, for all practical purposes, thermal conformers, or obligate poikilotherms. That is, they are able to exert little significant influence on maintaining a certain body tem
Authors
Charles C. Coutant
Textural variation within Great Salt Lake algal mounds
This chapter discusses textural variation within the Great Salt Lake algal mounds. Great Salt Lake algal mounds contain: (1) a framework of non-skeletal, algally induced aragonite precipitates; (2) internal sediment; and (3) inorganic cement. These three elements create a variety of laminated, poorly laminated, and unlaminated internal textures. Interior framework precipitates bear little resembla
Authors
Robert B. Halley
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 illustrate
Authors
Clifford A. Kaye
Behavioral and intellectual adaptations of selected mammalian predators to the problem of hunting large animals
No abstract available.
Authors
R.P. Peters, L. D. Mech
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
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 individual b
Authors
D. H. White, M. P. Dieter, R.C. Stendell
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. In 19
Authors
M. C. Perry
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
No abstract available.
Authors
J.A. Kerwin, R. E. Munro, W.W.A. Peterson