Book Chapters
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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.
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
The management of hunting of Anatidae The management of hunting of Anatidae
The objectives of harvest management for members of family Anatidae typically involve the size of the harvested population and the size of the harvest. Hunting regulations are the primary tool used to try to achieve the objectives of harvest management. Informed harvest management thus requires a knowledge of the relationship between hunting regulations and both Anatid abundance and...
Authors
J.D. Nichols, Fred A. Johnson
The relevance of the Mediterranean Region to colonial waterbird conservation The relevance of the Mediterranean Region to colonial waterbird conservation
The Mediterranean Sea is the largest partially enclosed sea in the world and provides habitat to more than 100 species of waterbirds from the Palearctic-North African-Middle Eastern regions. Even though the Mediterranean suffers from pollution, has little tidal influence, and is oligotrophic, more than half of the western Palearctic populations of numerous waterfowl species winter in the...
Authors
R.M. Erwin
The role of thermal stratification in tidal exchange at the mouth of San Diego Bay The role of thermal stratification in tidal exchange at the mouth of San Diego Bay
We have examined, from an observational viewpoint, the role of thermal stratification in the tidal exchange process at the mouth of San Diego Bay. In this region, we found that both horizontal and vertical exchange processes appear to be active. The vertical exchange in this case was apparently due to the temperature difference between the'bay water and ocean water. We found that the...
Authors
D. B. Chadwick, J. L. Largier, R. T. Cheng, D.G. Aubrey, C.T. Friedrichs
The supply of suspended sediment from the Sacramento River to San Francisco Bay, I, concentrations and transports The supply of suspended sediment from the Sacramento River to San Francisco Bay, I, concentrations and transports
No abstract available.
Authors
L. E. Schemel, S.W. Hager, D. Childers
Toxicity of fire retardant chemicals and fire suppressant foams to vertebrate and invertebrate wildlife species Toxicity of fire retardant chemicals and fire suppressant foams to vertebrate and invertebrate wildlife species
Under laboratory conditions, acute single-dose oral toxicity tests (LD50) were conducted with three fire retardant chemicals (Fire-Trol GTS-R, Phos-Chek D75-F, and Fire-Trol LCG-R) and two fire suppressant foams (Silv-Ex and Phos-Chek WD-881) to determine effects on adult northern bobwhite, American kestrel, red-winged blackbird, and white-footed mouse. In addition, earthworms were...
Authors
Nimish B. Vyas, Elwood F. Hill
Toxicological significance of mercury in freshwater fish Toxicological significance of mercury in freshwater fish
Abstract not submitted to date
Authors
J.G. Wiener, D.J. Spry
Transportation and handling of salmonids Transportation and handling of salmonids
No abstract available
Authors
Gary Wedemeyer
Uncertainties in assessing contaminant exposure from sediments Uncertainties in assessing contaminant exposure from sediments
No abstract available.
Authors
S. N. Luoma, N.S. Fisher
Vegetative index for characterizing drought patterns Vegetative index for characterizing drought patterns
No abstract available.
Authors
James D. Rowland, A. Nadeau, J. C. Brock, R. W. Klaver, D. G. Moore, J. Lewis
Veterinary aspects of releasing endangered Whooping Cranes (Grus americana) in Florida Veterinary aspects of releasing endangered Whooping Cranes (Grus americana) in Florida
No abstract available.
Authors
Glenn H. Olsen, M. Spalding, J.A. Langenberg
Veterinary techniques for rearing crane chicks Veterinary techniques for rearing crane chicks
No abstract available.
Authors
Glenn H. Olsen, J.A. Langenberg