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Page 4061, results 101501 - 101525

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Landscape ecology: a concept for protecting park resources
Craig D. Allen, John Lissoway, Keith Yarborough
1990, Park Science (10) 7-8
The Southwest Region has been supporting Resource Basic Inventory (RBI) efforts to establish baseline data for comparisons with long-term monitoring results to be conducted in the future. This “pulse taking” is a part of the Servicewide initiative being fostered so that resource managers, scientists, and park managers will be able...
Middle Jurassic syntectonic conglomerate in the Mt. Tallac roof pendant, northern Sierra Nevada, California
G. Reid Fisher
David S. Harwood, M. Meghan Miller, editor(s)
1990, Book chapter, Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes
Middle Jurassic marine conglomeratic and debris-flow deposits in the Mt. Tallac roof pendant are interpreted to be syntectonic fault trough deposits. Similar deposits in similar stratigraphic successions throughout the northern Sierra Nevada demonstrate that the Middle Jurassic continental-margin arc north of latitude 39° was essentially marine, and possibly extensional or...
Hydrogeochemistry of rivers and lakes
John David Hem, Adrian Demayo, Richard A. Smith
R.G. Wolman, H. C. Riggs, editor(s)
1990, Book chapter, Surface water hydrology of North America
This chapter has three principal objectives: (1) to summarize the present chemical composition of North American surface waters and point out any discernible trends with time; (2) to review chemical and biochemical principles and processes that control natural water composition, and the ways in which these may be involved in...
Tuberculosis in wild birds: implications for captive birds
K. A. Converse, F. J. Dein
1990, Book, Proceedings of the American Association of Zoo Veterinarians
The geographic distribution of avian tuberculosis is widespread but the lack of visible epizootics makes assessment of its impact on wild birds difficult. Generally a low prevalence, widely-scattered, individual animal disease, avian tuberculosis is caused by the same agent in wild and domestic birds. Thus there exists the potential for...
Origin of solutes in saline lakes and springs on the Southern High Plains of Texas and New Mexico
W. Wood, B.F. Jones
Thomas C. Gustavson, editor(s)
1990, Book chapter, Geologic framework and regional hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains
Analysis of hydraulic heads, calculation of pore volume flushing, and analysis of solute and isotopic chemistry strongly suggest that the solutes originate from the concentration by evaporation of runoff and potable shallow ground water that discharges from the High Plains aquifer. Chloride/bromide solute ratios, which are thought to be unaffected...
Homing and reproductive habits of mallards, gadwalls, and blue-winged teal
John T. Lokemoen, Harold F. Duebbert, David E. Sharp
1990, Wildlife Monographs (106) 3-28
We studied mallard (Anas platyrhynchos), gadwall (A. strepera), and blue-winged teal (A. discors) populations on 2 study areas of 22.6-km2 each in central North Dakota during 1976-81. Data regarding rates of return of females to natal or previously used nesting areas, nest site selection, and productivity of hens of different...
Resistance to 3-trifluoromethyl-4-nitrophenol (TFM) in sea lamprey
R.J. Scholefield, J.G. Seelye
1990, Technical Report 56
The lampricide 3-trifluoromethyl-4-nitrophenol (TFM) has been used in the United States and Canada for more than 30 years to control populations of sea lamprey (Petromyzon marinus) in the Great Lakes. There is concern that sea lamprey might become resistant to TFM. Lampricide toxicity tests have been conducted at the Hammond...
Writing the report
Fred P. Meyer, Bernard L. Berger
Fred P. Meyer, Lee A. Barclay, editor(s)
1990, Resource Publication 177-10
No abstract available....
Site 765: Sediment Lithostratigraphy
Leg 123 Shipboard Scientific Party
1990, Proceedings of the Ocean Drilling Program: Initial Reports (123) 76-94
A 935-m-thick succession of Quaternary through Lower Cretaceous sediments was recovered at Site 765 (Fig. 10). A single core of Quaternary sediment was obtained from Hole 765A; drilling terminated and a new hole was drilled in an attempt to establish the mud line. Quaternary through middle Miocene sediments were cored...
Site 765: Sedimentology
Leg 123 Shipboard Scientific Party
1990, Proceedings of the Ocean Drilling Program: Initial Reports (123) 113
Various techniques were used to decipher the sedimentation history of Site 765, including Markov chain analysis of facies transitions, XRD analysis of clay and other minerals, and multivariate analysis of smear-slide data, in addition to the standard descriptive procedures employed by the shipboard sedimentologist. This chapter presents brief summaries of...