Measurements of exclusive photoproduction processes at large values of t and u from 4 to 7.5 GeV
R.L. Anderson, D.B. Gustavson, D.M. Ritson, G.A. Weitsch, H.J. Halpern, R. Prepost, Donald H. Tompkins, D.E. Wiser
1976, Physical Review D (14) 679-697
Exclusive photoproduction cross sections have been measured for the processes γp→π<span...
Relative influence upon microwave emissivity of fine-scale stratigraphy, internal scattering, and dielectric properties
A. W. England
1976, Pure and Applied Geophysics PAGEOPH (114) 287-299
The microwave emissivity of relatively low-loss media such as snow, ice, frozen ground, and lunar soil is strongly influenced by fine-scale layering and by internal scattering. Radiometric data, however, are commonly interpreted using a model of emission from a homogeneous, dielectric halfspace whose emissivity derives exclusively...
On simultaneous tilt and creep observations on the San Andreas Fault
M.J.S. Johnston, S. McHugh, S. Burford
1976, Nature (260) 691-693
THE installation of an array of tiltmeters along the San Andreas Fault1 has provided an excellent opportunity to study the amplitude and spatial scale of the tilt fields associated with fault creep. We report here preliminary results from, and some implications of, a search for interrelated surface...
Serpentinization and alteration in an olivine cumulate from the Stillwater Complex, Southwestern Montana
N.J. Page
1976, Contributions to Mineralogy and Petrology (54) 127-137
Some of the olivine cumulates of the Ultramafic zone of the Stillwater Complex, Montana, are progressively altered to serpentine minerals and thompsonite. Lizardite and chrysotile developed in the cumulus olivine and postcumulus pyroxenes; thompsonite developed in postcumulus plagioclase. The detailed mineralogy, petrology, and chemistry indicate that...
Problems in shallow land disposal of solid low-level radioactive waste in the united states
P. R. Stevens, G.D. DeBuchananne
1976, Bulletin of the International Association of Engineering Geology (13) 161-171
Disposal of solid low-level wastes containing radionuclides by burial in shallow trenches was initiated during World War II at several sites as a method of protecting personnel from radiation and isolating the radionuclides from the hydrosphere and biosphere. Today, there are 11 principal shallow-land burial sites in the United States...
Gravitational spreading of steep-sided ridges ("sackung") in western United States
D. H. Radbruch-Hall, D. J. Varnes, W. Z. Savage
1976, Bulletin of the International Association of Engineering Geology (13) 23-35
Large-scale gravitational spreading and movement along fractures of steep-sided ridges in the mountainous areas of the western United States are characterized by linear fissures, trenches, and uphill-facing scarps on tops and sides of ridges. Spreading appears to take place by movement along disconnected planes and/or by...
Landslides - Cause and effect
D. H. Radbruch-Hall, D. J. Varnes
1976, Bulletin of the International Association of Engineering Geology (13) 205-216
Landslides can cause seismic disturbances; landslides can also result from seismic disturbances, and earthquake-induced slides have caused loss of life in many countries. Slides can cause disastrous flooding, particularly when landslide dams across streams are breached, and flooding may trigger slides. Slope movement in general is a major process of...
An investigation of the critical liquid-vapor properties of dilute KCl solutions
R.W. Potter II, R.S. Babcock, G.K. Czamanske
1976, Journal of Solution Chemistry (5) 223-230
The three parameters that define the critical point, temperature, pressure, and volume have been experimentally determined by means of filling studies in a platinum-lined system for five KCl solutions ranging from 0.006 to 0.568m. The platinum-lined vessels were used to overcome the problems with corrosion experienced...
[Book review] American sportsmen and the origins of conservation
Richard C. Banks
1976, The Auk (93) 864-865
The relationship of this book to ornithology is so indirect that the work barely merits a review on these pages. In a rather subtle way, however, the book may have a considerable effect on at least one aspect of ornithology, that involving scientific collecting. In essence, the volume is an...
New seasonal and distributional records of Idaho birds
S.R. Wilbur
1976, Murrelet (57) 32-34
No abstract available. ...
Report of the American Ornithologists' Union Committee on Conservation 1975-76
W.B. King, G.V. Byrd, J.J. Hickey, C. B. Kepler, W. Post, H.A. Raffaele, P. F. Springer, H.F. Snyder, C.M. White, J.N. Wiley
1976, The Auk (93) 1DD-19DD
This Committee's report for 1974-75 (Marshall et al. 1975, Auk 92 (4, Suppl.): lB-16B) summarized activities affecting bird conservation in the United States and Canada since 1973, including new legislation, international activities, avian conflicts with industrial and population growth, and habitat preservation. It also summarized the status of many of...
Nationwide residues of organochlorines in wings of adult mallards and black ducks, 1972-73
Donald H. White, R.G. Heath
1976, Pesticides Monitoring Journal (9) 176-185
Organochlorine residues in wings of adult mallards and black ducks were monitored during the 1972-73 hunting season. DDE, DDT, DDD, dieldrin, and polychlorinated biphenyls (PCB's) were present in all samples. Mallard wings from Alabama contained the highest mean levels of DDE, DDT, DDD, dieldrin, and PCB's. Mallards and black ducks...
An update to Wood's Bird Bander's Guide
J.M. Sheppard, M. K. Klimkiewicz
1976, Inland Bird Banding News (48) 88-97
Twenty-ninth winter bird-population study. 13. Upland tulip-tree-maple-oak forest
C.S. Robbins
1976, American Birds (30) 1046
An update to Wood's Bird-Bander's Guide
J.M. Sheppard, M. K. Klimkiewicz
1976, North American Bird Bander (1) 25-27
Mapping wetlands on beaver flowages with 35-mm photography
R.E. Kirby
1976, Canadian Field-Naturalist (90) 423-431
Beaver flowages and associated wetlands on the Chippewa National Forest, north-central Minnesota, were photographed from the ground and from the open side window of a small high-wing monoplane. The 35-mm High Speed Ektachrome transparencies obtained were used to map the cover-type associations visible on the aerial photographs. Nearly vertical aerial...
Thermal adaptiveness of plumage color in screech owls
James A. Mosher, Charles J. Henny
1976, The Auk (93) 614-619
Clinal variation in the relative proportions of red and gray plum- age phases in Screech Owls (Otus asio) was analyzed by Owen (1963) and Marshall (1967). This variation was well known prior to Owen's work, but was misinterpreted (Baird, et al. 1874, Hasbrouck 1893, Allen 1893).]Laurel VanCamp and Charles Henny...
White-tailed deer migration and its role in wolf predation
R.L. Hoskinson, L.D. Mech
1976, Journal of Wildlife Management (40) 429-441
Seventeen white-tailed deer (Odocoileus virginianus) were radio-tagged in winter yards and tracked for up to 17 months each (881 locations) from January 1973 through August 1974 in the central Superior National Forest of NE Minnesota following a drastic decline in deer numbers. Ten vyolves (Canis lupus) from 7 packs in...
Aging immature mourning doves by primary feather molt
G.H. Haas, S.R. Amend
1976, Journal of Wildlife Management (40) 575-578
This study was undertaken to document the timing of primary feather molt for aging purposes and to examine variability in rate of molt between years and between sexes of immature wild mourning doves (Zenaida macroura). We used capture records from a 7-year study on the Piedmont and Coastal Plain of...
The effects of orchard pesticide applications on breeding robins
E.V. Johnson, G.L. Mack, D.Q. Thompson
1976, The Wilson Bulletin (88) 16-35
From 1966 through 1968, robins reproduced successfully in commercial apple orchards which were periodically sprayed with DDT, dieldrin, and other pesticides. Observations by a Z-man team using walkie-talkies revealed that breeding robins obtained essentially all food for themselves and nestlings from unsprayed areas adjacent to the orchards. Invertebrate trapping in...
Reproductive rate and temporal spacing of nesting of red-winged blackbirds in upland habitat
Richard A. Dolbeer
1976, The Auk (93) 343-355
The literature contains numerous studies on Red-winged Blackbird (Agelaius phoeniceus) reproduction. Francis (1971) summarized eight studies dealing with nesting success. These and other studies have also provided information on breeding chronology, clutch sizes, sex ratios, survival rates for eggs and nestlings, reproductive physiology, and other life history aspects of reproduction....
Lead in tissues of mallard ducks dosed with two types of lead shot
M. T. Finley, M. P. Dieter, L. N. Locke
1976, Bulletin of Environmental Contamination and Toxicology (16) 261-269
Mallard ducks (Anas platyrhynchos) were sacrificed one month after ingesting one number 4 all-lead shot or one number 4 lead-iron shot. Livers, kidneys, blood, wingbones, and eggs were analyzed for lead by atomic absorption. Necropsy of sacrificed ducks failed to reveal any of the tissue lesions usually associated with lead...
Delta-aminolevulinic acid dehydratase: Inhibition in ducks dosed with lead shot
M. T. Finley, M. P. Dieter, L. N. Locke
1976, Environmental Research (12) 243-249
Lead concentration in blood and erythrocyte delta-aminolevulinic acid dehydratase (ALAD) activity was measured in mallard ducks dosed with one all-lead shot or one lead-iron combination shot. For 2 weeks after dosage, lead in blood of ducks given an all-lead shot was fourfold higher than in those dosed with lead-iron shot....
Methylmercury: Second generation reproductive and behavioral effects of mallard ducks
G. H. Heinz
1976, Journal of Wildlife Management (40) 710-715
Mallard ducks (Anas platyrhynchos) whose parents were fed a diet containing 0.5 ppm mercury (equal to about 0.1 ppm mercury in a natural diet) also were fed a diet containing 0.5 ppm mercury beginning at 9 days of age and continuing through their reproductive season. Mercury in the eggs of...
Woodcock use of clearcut aspen areas in Wisconsin
J.B. Hale, L.E. Gregg
1976, Wildlife Society Bulletin (4) 111-115
Clearcut areas in northern Wisconsin aspen (Populus spp., mostly P. tremuloides) forests were highly attractive to woodcock (Philohela minor) for feeding and night-roosting, and made excellent sites for woodcock trapping and banding. Woodcock use of clearcuts was extended for several years by annually removing vegetation from trails with a...
