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Page 5291, results 132251 - 132275

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Not all publications have extents, not all extents are completely accurate
The current status of woodcock and woodcock surveys in the United States
J. Tautin
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
A comparison of American woodcock (Philohela minor) wing collection survey data for 1975-76 and 1976-77 showed that there was little change in the indices to breeding success and hunter success between years in the Atlantic and Central regions. The 1977 breeding population index was up 15.2 percent from 1976 in...
Identification of potential harvest units in the United States of the American woodcock
R.A. Coon, T.J. Dwyer, J.W. Artmann
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
Potential harvest units were examined in the United States for American woodcock (Philohela minor) based on the distribution of both direct and indirect recoveries of preseason bandings. Unweighted and weighted recoveries were used to definefour sets of units with a minimal interchange of birds. With a configuration that...
Woodcock utilization of commercial timberlands in the northeast
C.P. Nicholson, S. Homer, Ray B. Owen, T.G. Dilworth
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
This paper reports the results of studies in Maine (1975-77) and New Brunswick (1974) on the utilization of commercial timber areas by woodcock (Philohela minor). Openings created by logging operations were utilized for singing grounds and nocturnal roosting habitat. Singing male densities of 3.4 birds/1oo ha on were...
Research, management, and status of the osprey in North America
Charles J. Henny
R.D. Chancellor, editor(s)
1977, Book chapter, World Conference on Birds of Prey, Vienna, 1-3 October, 1975. Report of Proceedings
Osprey populations were studied throughout North America during the last decade as a result of dramatic declines reported along the North Atlantic Coast in the1950s and early 1960s. Researchers used banding, localized studies, aerial surveys, and pesticide analyses to identify factors influencing regional populations. Declining populations showed extremely...
Earthworm populations as related to woodcock habitat usage in Central Maine
J.W. Reynolds, W.B. Krohn, G.A. Hordan
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
Lumbricid earthworms were sampled 'on two central Maine study areas between late April and early September, 1974, to relate earthworm abundance to use of feeding covers by American woodcock(Philoheli minor). On sampling days, occurring at 2 to 3 week intervals, a formalin solution was applied to thirty O.25m areas in...
Experimental woodcock management at the Moosehorn National Wildlife Refuge
G.F. Sepik, Ray B. Owen, M.W. Coulter
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
The purpose of this study is to develop woodcock(Philohela minor) management techniques that can be easily used by the small landowner or incorporated with other land management operations such as commercial timber harvesting. The Moosehorn National Wildlife Refuge contains areas which are characteristic of the abandoned farms now being purchased...
Quantitative analysis of American woodcock nest and brood habitat
A. Bourgeois
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Book chapter, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
Sixteen nest and 19 brood sites of American woodcock (Philohela minoI) were examined in northern lower Michigan between 15 April and 15 June 1974 to determine habitat structure associated with these sites. Woodcock hens utilized young, second-growth forest stands which were similar in species composition for both nesting and brood...
Impact of estuarine pollution on birds
L. J. Blus, Stanley N. Wiemeyer, J.A. Kerwin, Rey C. Stendell, H. M. Ohlendorf, L.F. Stickel
1977, Book chapter, Estuarine Pollution Control and Assessment, Proceedings of a Conference held February 11-13, 1975
Pollution of estuaries affects bird populations indirectly through changes in habitat and food supply. The multi-factor pollution of Chesapeake Bay has resulted in diminution of submerged aquatic plants and consequent change in food habits of the canvasback duck. Although dredge-spoil operations can improve wildlife habitat, they often result...
The status and distribution of woodcock in Oklahoma
J.S. Barclay, R.W. Smith
Daniel M. Keppie, Ray B. Owen Jr., editor(s)
1977, Conference Paper, Proceedings of the Sixth Woodcock Symposium, held at Fredericton, New Brunswick, October 4, 5 and 6
The seasonal and spatial distributions of the American woodcock (Philohela minor) in Oklahoma were determined through field surveys and the collection of all known reports of woodcock sightings. Woodcock were reported in Oklahoma in all seasons and were most Jrequently sighted from 11 October to 10 January. The peak...
Platinum, palladium, and rhodium in volcanic and plutonic rocks from the Gravina-Nutzotin belt, Alaska
Norman J. Page, Henry C. Berg, Joseph Haffty
1977, Journal of Research of the U.S. Geological Survey (5) 629-636
The Gravina-Nutzotin belt of Middle (?) Jurassic to middle Cretaceous sedimentary and volcanic rocks in south and southeastern Alaska includes concentrically zoned ultramafic complexes known to contain platinum-group metals. Previous isotopic, petrologic, and geologic studies suggested a close relation in time and space between the volcanic rocks and the ultramafic...
Comparison of granitic intrusions in the Pelona and Orocopia Schists, southern California
Fred K. Miller, Douglas M. Morton
1977, Journal of Research of the U.S. Geological Survey (5) 643-649
Dating of some small plutons in the San Gabriel and Chocolate Mountains, southern California, yields Miocene K-Ar ages. A single granodiorite pluton that has been segmented by branches of the San Jacinto fault intrudes the Pelona Schist and yields ages of 14.0 to 18.6 million years. Several quartz monzonite plutons...
A combustimetric method for determining the total carbon content of geologic materials
J. Tillman
1977, Journal of Research of the U.S. Geological Survey (5) 583-587
A modified LEGO WR-12 carbon determinator is used in a combustimetric determination of total carbon in geologic materials. A thermal conductivity cell is used as the sensing device. International reference samples are analyzed and compared to results previously published. Three new standards from the Canadian Certified Reference Materials Project were...
Simulation of flow from an aquifer to a partially penetrating trench
Stanley A. Leake
1977, Journal of Research of the U.S. Geological Survey (5) 535-540
Construction of the Tennessee-Tombigbee Waterway in northeast Mississippi will involve dewatering as much as 46 m of an unconfined aquifer near the Tennessee Valley divide. Dewatering by trenching is one of the proposed methods. Methods of calculating effects of dewatering by trenching have been heretofore limited to situations where ideal...
Feasibility and technology for making remote measurements of solutes in water
Marvin C. Goldberg, Eugene R. Weiner
1977, Journal of Research of the U.S. Geological Survey (5) 561-563
An indepth evaluation of the available technology in the field of laser-Raman spectroscopy indicates that a TV-type detector, a single monochromator with a holographic grating, an entrance slit filter blocking the Rayleigh light, and a pulsed laser coupled to signal averaging electronics is the best combination of commercial equipment that...
A thermostatic water bath for experimental studies in aqueous solutions
R. M. Siebert, K.A. McGee, P. B. Hostetler
1977, Journal of Research of the U.S. Geological Survey (5) 597-602
A temperature-controlled water bath for the study of ion-pairing equilibria and mineral solubility in aqueous solutions below 100°C is described. The bath is similar to a previously described system (P. B. Hostetler and C. L. Christ, 1968, U.S. Geol. Survey Prof. Paper 600-D, p. D217-D221) but incorporates several significant improvements....
Rare earths, thorium, and other minor elements in sphene from some plutonic rocks in west-central Alaska
Mortimer H. Staatz, Nancy M. Conklin, Isabelle K. Brownfield
1977, Journal of Research of the U.S. Geological Survey (5) 623-628
Sphene is an abundant accessory mineral in some abnormally radioactive plutonic rocks in west-central Alaska. Seven samples of sphene from four different areas in west-central Alaska contained from 20350 to 39180 parts per million total rare earths and 390 to 2000 ppm thorium. The lanthanide content in six of the...
Exploration geochemical studies of some sandstone copper-uranium deposits, Bradford, Columbia, and Lycoming Counties, Pa
F. G. Lesure, J. M. Motooka, P. L. Weis
1977, Journal of Research of the U.S. Geological Survey (5) 609-621
Semi-quantitative spectrographic analyses of mineralized and unmineralized sandstone, siltstone, and claystone from the Catskill Formation of Devonian age in Bradford, Columbia, and Lycoming Counties, Pa., suggest that copper, silver, and uranium are the principal metallic elements concentrated in the mineralized rock. Lead, mercury, and molybdenum may be concentrated slightly in...
Preparation of pyrite-coated sand grains for research on roll-type uranium deposits
Carol A. Gent
1977, Journal of Research of the U.S. Geological Survey (5) 595-596
Ordinary quartz sand grains can be coated with pyrite for use in laboratory experiments on the genetic geochemistry of roll-type uranium deposits. The sand is first added to a ferric chloride solution. The slow addition of sodium hydroxide to the mixture gives the sand grains an iron oxide coating. This...
An improved ion-selective electrode method for the rapid determination of fluorine in rocks and soil
D.M. Hopkins
1977, Journal of Research of the U.S. Geological Survey (5) 589-593
An improved method based on an ion-selective electrode technique for the analysis of fluorine in rocks and soils is presented. Analyses are made by using a sodium carbonate-potassium carbonate fusion and a citric acid dissolution of the fuseate. Prior to determining the fluorine concentration by a standard-addition procedure, sodium citrate...
Thallium contents of 16 USGS standard rocks
F.O. Simon, E.Y. Campbell, P. J. Aruscavage
1977, Journal of Research of the U.S. Geological Survey (5) 579-581
Thallium was determined in 16 USGS standard rocks by atomic absorption spectroscopy in which a heated graphite atomizer was used after extraction as thallium iodide into amyl acetate. Four subsamples from four bottles of each standard sample, except G-1 and W-1, were analyzed in random order, and the average thallium...
Chemical structure of humic acids - Part 2, the molecular aggregation of some humic acid fractions in N, N-dimethylformamide
R.L. Wershaw, D.J. Pinckney
1977, Journal of Research of the U.S. Geological Survey (5) 571-577
Humic acid fractions form molecular aggregates in solution. In previous studies we have shown by small angle X-ray scattering that the size of these aggregates is a function of pH. In this study we have found that the size of the aggregates of two humic acid fractions in water and...
Chemical structure of humic acids - Part 1, a generalized structural model
R.L. Wershaw, D.J. Pinckney, S.E. Booker
1977, Journal of Research of the U.S. Geological Survey (5) 565-569
A new model is proposed for the structure of humic acids. In this model humic acid is pictured as being made up of a hierarchy of structural elements. At the lowest level in this hierarchy are simple phenolic, quinoid, and benzene carboxylic acid groups. These groups are bonded covalently into...
Periphyton and phytoplankton in the Sacramento River, California, May 1972 to April 1973
Linda J. Britton
1977, Journal of Research of the U.S. Geological Survey (5) 547-559
Periphyton and phytoplankton samples were collected monthly at five sites in the Sacramento River between May 1972 and April 1973. Periphyton were analyzed for species identification and biomass, and phytoplankton were analyzed for species identification and concentrations. The results were used to assess biological water-quality conditions in the river and...