Prairie dog distribution in areas inhabited by black-footed ferrets
C. N. Hillman, R. L. Linder, Robert Dahlgren
1979, American Midland Naturalist (102) 185-187
The distribution of black-tailed prairie dog (Cynomys ludovicianus) towns was delineated in a 1490 km2 study area in Mellette County, South Dakota, and was examined to determine the characteristics of black-looted ferret (Mustela nigripes) habitat. Between 1964 and 1974, black-looted ferrets were...
Relating residue in raccoon feces to food consumed
Raymond J. Greenwood
1979, American Midland Naturalist (102) 191-193
Feeding tests were conducted with captive raccoons (Procyon lotor) to permit more meaningful interpretation of food habit data obtained from fecal analysis. Ten diverse types of natural foods were offered in 20 tests. Digestibility coefficients were calculated that ranged from 3.6 for dry sunflowers, where considerable residue was recovered, to...
Uptake of methoxychlor from food and water by the American toad (Bufo americanus)
R.J. Hall, D. Swineford
1979, Bulletin of Environmental Contamination and Toxicology (23) 335-337
Various studies (Mulla et al. 1963; Ferguson and Gilbert 1967; Cooke 1973) have examined the effects of pesticides on anuran amphibians, but the routes of contaminant uptake by transformed amphibians have not been evaluated. The need of frogs and toads to imbibe water from natural surface water would seem to...
Organochlorine residues in eggs of the endangered American crocodile (Crocodylus acutus)
R.J. Hall, T. E. Kaiser, W. B. Robertson, P.C. Patty
1979, Bulletin of Environmental Contamination and Toxicology (23) 87-90
Most of the 27 species and subspecies of surviving crocodilians have declining populations and 22 of them are considered to be severely endangered (IUCN 1971). The United States population of the American Crocodile is no exception; it probably numbers between I00 and 300 individuals (OGDEN 1976). Nests of the species...
Relation of environmental factors to breeding status of royal and sandwich terns in South Carolina, USA
L. J. Blus, R. M. Prouty, B.S. Neely Jr.
1979, Biological Conservation (16) 301-320
The population ecology of the royal tern Sterna maxima and sandwich tern Sterna sandvicensis was investigated in South Carolina from 1970 through 1977. Royal and sandwich terns nested together in all of the colonies that we located.The peak in egg laying usually occurred in early May; peak hatching occurred from late May...
Organochlorine poisoning of herons
Harry M. Ohlendorf, Douglas M. Swineford, Louis N. Locke
1979, Conference Paper, Proceedings of the 1979 conference of the Colonial Waterbird Group
Over a period of years interested individuals have submitted many dead or moribund herons of various species to our laboratory to learn whether the birds had been affected by diseases or organochlorine poisoning. Residue concentrations in carcasses of birds and mammals are considered the best measure of sublethal exposure,...
Carbon dioxide in the ocean surface: The homogeneous buffer factor
E.T. Sundquist, Niel Plummer, T.M.L. Wigley
1979, Science (204) 1203-1205
The amount of carbon dioxide that can be dissolved in surface seawater depends at least partially on the homogeneous buffer factor, which is a mathematical function of the chemical equilibrium conditions among the various dissolved inorganic species. Because these equilibria are well known, the homogeneous buffer factor...
Human related mortality of birds in the United States
Richard C. Banks
1979, Special Scientific Report - Wildlife 215
Modern man serves as both a direct and an indirect cause of the death of birds. In the early 1970's, human activity was responsible for the death of approximately 196 million birds per year, or about 1.9% of the wild birds of the continental United States that died each...
Methods used at Patuxent Wildlife Research Center to study the effects of oil on birds
W.C. Eastin
Columbus H. Brown, editor(s)
1979, Conference Paper, Proceedings of the 1979 U.S. Fish and Wildlife Service Pollution Response Workshop
No abstract available....
Variation of rain chemistry during storms at two sites in northern California
V. C. Kennedy, Gary W. Zellweger, Ronald J. Avanzino
1979, Water Resources Research (15) 687-702
The chemical composition of rainfall at Menlo Park, on San Francisco Bay, is compared with rainfall at Petrolia, which is near the coast about 500 km north of San Francisco. Sequential samples representing 1.35 to 5.4 mm of rain were collected from November 1971 to January 1972. At rural Petrolia...
Compressional velocities from multichannel refraction arrivals on Georges Bank: northwest Atlantic Ocean
L. D. McGinnis, R. M. Otis
1979, Geophysics (44) 1022-1033
Velocities were obtained from unreversed, refracted arrivals on analog records from a 48‐channel, 3.6-km hydrophone cable (3.89 km from the airgun array to the last hydrophone array). Approximately 200 records were analyzed along 1500 km of ship track on Georges Bank, northwest Atlantic Ocean, to obtain regional sediment velocity distribution...
The Jupiter system through the eyes of Voyager 1
B.A. Smith, L.A. Soderblom, T. V. Johnson, A.P. Ingersoll, S.A. Collins, E.M. Shoemaker, G.E. Hunt, H. Masursky, M. H. Carr, M. E. Davies, A.F. Cook II, J. Boyce, G. E. Danielson, Tobias Owen, C. Sagan, R.F. Beebe, J. Veverka, R.G. Strom, J.F. McCauley, D. Morrison, G.A. Briggs, V.E. Suomi
1979, Science (204) 951-972
The cameras aboard Voyager 1 have provided a closeup view of the Jupiter system, revealing heretofore unknown characteristics and phenomena associated with the planet's atmosphere and the surfaces of its five major satellites. On Jupiter itself, atmospheric motions—the interaction of cloud systems—display complex vorticity. On its dark side,...
A late Wisconsinan ice readvance near Manchester, New Hampshire
Byron D. Stone, Carl Koteff
1979, American Journal of Science (279) 590-601
No abstract available....
Alterations in rainbow trout liver function and body fluids following treatment with carbon tetrachloride or monochlorobenzene
L.J. Weber, W.H. Gingerich, K.F. Pfeifer
M. A. Q. Khan, J.J. Lech, J.J. Menn, editor(s)
1979, Book chapter, Pesticide and xenobiotic metabolism in aquatic organisms
Abstract not submitted to date...
Late Wisconsinan sea levels on the Southeast U.S. Atlantic shelf based on in-place shoreline indicators
B. W. Blackwelder, O. H. Pilkey, J.D. Howard
1979, Science (204) 618-620
A new interpretation of late Pleistocene sea levels on the U.S. Atlantic continental shelf is based on in-place lagoonal and salt-marsh sediments obtained from vibra-cores. These data show sea levels during the last Wisconsinan transgression were about 30 meters shallower than is indicated by existing sea-level curves....
The determination of snow avalanche frequency through tree-ring analysis and historical records at Ophir, Colorado
Paul E. Carrara
1979, GSA Bulletin (90) 773-780
Tree-ring analysis can be a reliable method of determining past snow avalanche events when good historical records are lacking. Characteristic features in the tree-ring record indicative of disturbance include: (1) the occurrence of reaction wood, (2) abrupt changes in growth rate, (3) age of scars caused by avalanche impact, (4)...
Abnormal P-wave delays in The Geysers-Clear Lake Geothermal area, California
H. M. Iyer, D. H. Oppenheimer, T. Hitchcock
1979, Science (204) 495-497
Large teleseismic delays, exceeding 1 second, are found near Mount Hannah in the Clear Lake volcanic field and in the steam-production area at The Geysers. The delays are superimposed on a general delay field of about 0.5 second extending over the volcanic rocks and the steam reservoir....
A stratified-cluster sampling procedure applied to a wildland vegetation inventory using remote sensing
W. G. Rohde, W. A. Miller, K. G. Bonner, E. Hertz, M. F. Engel
1979, Conference Paper, Proceedings of the 13th International Symposium on Remote Sensing of Environment
No abstract available....
Forest stand classification in western Washington using Landsat and computer-based resource data
G. R. Johnson, E. W. Barthmaier, T. W. D. Gregg, R. E. Aulds
1979, Conference Paper, Proceedings of the 13th International Symposium on Remote Sensing of Environment
No abstract available....
Monitoring of subsurface injection of wastes, Florida
John Vecchioli
1979, Groundwater (17) 244-249
Injection of waste liquids into Florida's subsurface is physically feasible in many places but should be accompanied by monitoring of the waste-receiving aquifer system in addition to the injection facility. Monitoring of the interaction of factors including hydrogeologic conditions, well construction, waste volumes and characteristics, and potable-water sources is desirable...
Spectra of altered rocks in the visible and near infrared
G.R. Hunt, Roger P. Ashley
1979, Economic Geology (74) 1613-1629
Visible and near-infrared (0.35 to 2.5 mu m) bidirectional reflection spectra were recorded for a suite of well-characterized hydrothermally altered rock samples. The spectra typically display well-defined bands caused by both electronic and vibrational processes in the individual mineral constituents.Electronic transitions in the iron-bearing constituent minerals produce diagnostic minima near...
The Moon: Sources of the crustal magnetic anomalies
L. L. Hood, P.J. Coleman Jr., D.E. Wilhelms
1979, Science (204) 53-57
Previously unmapped Apollo 16 subsatellite magnetometer data collected at low altitudes over the lunar near side are presented. Medium-amplitude magnetic anomalies exist over the Fra Mauro and Cayley Formations (primary and secondary basin ejecta emplaced 3.8 to 4.0 billion years ago) but are nearly absent over the...
Origins and early years of the U.S. Geological Survey
1979, Earthquake Information Bulletin (USGS) (11) 40-46
The U.S. Geological Survey was established on March 3, 1879, in the closing hours of the final session of the 45th Congress. The bill appropriating the money for sundry civil expenses of the Government during fiscal year 1880 was signed by President Rutherford B. Hayes. Included in the bill was...
Endolith microborings and their preservation in Holocene-Pleistocene (Bahama-Florida) ooids
Paul M. Harris, Robert B. Halley, Karen J. Lukas
1979, Geology (7) 216-220
Holocene ooids from Joulters Ooid Shoal (Bahamas) are bored in various ways by blue-green algae that groove along the grain surface, reside just beneath the grain surface, and tunnel extensively a few tens of microns within the grain. The microborings, morphologically distinctive, are documented with scanning electron micrographs of open...
Weights of lesser snow geese taken on their winter range
Edward L. Flickinger, E.G. Bolen
1979, Journal of Wildlife Management (43) 531-533
Geese are assumed to accumulate fat on the winter range (Bent 1962, Williams 1967) to sustain them through the long northward migration and early part of the nesting season. However, there are no weights given in the literature of lesser snow geese (Anser c. caerulescens) on their winter ranges to...
