Survival of juvenile black ducks during brood rearing
James K. Ringelman, Jerry R. Longcore
1982, Journal of Wildlife Management (46) 622-628
Duckling survival among broods reared by 8 radio-marked and 28 unmarked black ducks (Anas rubripes) was studied in Maine during 1977-80. The mean class III brood size of 5.26 yielded an apparent survival rate of 0.6152 from hatching to fledging. However, by using the method described by Mayfield (1961, 1975),...
Responses of Siberian ferrets to secondary zinc phosphide poisoning
Elwood F. Hill, James W. Carpenter
1982, Journal of Wildlife Management (46) 678-685
The hazard of operational-type applications of zinc phosphide (Zn3P2) on a species closely related to the black-footed ferret (Mustela nigripes), was evaluated by feeding 16 Siberian ferrets (M. eversmanni) rats that had been killed by consumption of 2% zinc phosphide treated bait or by an oral dose of 40, 80,...
Movements and wetland selection by brood-rearing black ducks
James K. Ringelman, Jerry R. Longcore
1982, Journal of Wildlife Management (46) 615-621
Movements and wetland selection by brood-rearing black ducks (Anas rubripes) were studied in Maine during 1977-80. Eight radio-marked hens moved their broods an average of 1.2 km from the nest to rearing pond, but only 1 hen initiated secondary brood movements. Half of the 85 broods reared in the study...
An analysis of howling response parameters useful for wolf pack censusing
Fred H. Harrington, L. David Mech
1982, Journal of Wildlife Management (46) 686-693
Gray wolves (Canis lupus) were studied from April-1972 through April 1974 in the Superior National Forest in northeastern Minnesota by radio-tracking and simulated howling. Based on replies during 217 of 456 howling sessions, the following recommendations were derived for using simulated howling as a census technique: (1) the best times...
Wilderness permit accuracy: differences between reported and actual use
David J. Parsons, Thomas J. Stohlgren, James M. Kraushaar
1982, Environmental Management (6) 329-335
Wilderness permits are valuable tools for recording backcountry use patterns. They provide a valuable basis upon which management decisions are made. Unfortunately, significant inaccuracies in reporting permit data result from noncompliance, transmission errors, and changes in visitor plans. Data from Sequoia and Kings Canyon National Parks in California show that...
Reoccurrence of caribou in Minnesota
L. David Mech, Michael E. Nelson, H. F. Drabik
1982, American Midland Naturalist (108) 206-208
At least two caribou (Rangifer tarandus) were observed in Cook Co. of northeastern Minnesota from October 1980 through April 1981. This is the first record of caribou in the area since 1924. The nearest records of this species were 224 km NE of the present sightings, and the closest known...
Perched water tables on hillsides in western Oregon: II. Preferential downslope movement of water and anions
D.P. Hammermeister, G.F. Kling, J.A. Vomocil
1982, Soil Science Society of America Journal (46) 819-826
Perched water tables on hillsides in western Oregon potentially provide a means by which pollutants from agricultural and domestic sources may enter surface waters and consequently degrade the quality of these waters. This paper reports the results of experiments which were carried out to investigate the flow of solutes and...
Characterization of organic contaminants in environmental samples associated with Mount St. Helens 1980 volcanic eruption
Wilfred E. Pereira, Colleen E. Rostad, Howard E. Taylor, John M. Klein
1982, Environmental Science and Technology (16) 387-396
Volcanic ash, surface-water, and bottom-material samples obtained in the vicinity of Mount St. Helens after the May 18, 1980, eruption were analyzed for organic contaminants by using capillary gas chromatography-mass spectrometry-computer techniques. Classes of compounds identified include n-alkanes, fatty acids, dicarboxylic acids, aromatic acids and aldehydes, phenols, resin acids, terpenes,...
Perched water tables on hillsides in western Oregon: I. Some factors affecting their development and longevity
D.P. Hammermeister, G.F. Kling, J.A. Vomocil
1982, Soil Science Society of America Journal (46) 811-818
Perched water tables on hillsides located on the western border of the Willamette Valley in Oregon in some cases have the potential to transport pollutants from either domestic or agricultural sources downslope to streams, ponds, or reservoirs, resulting in the deterioration of the quality of these waters. In this paper,...
Effects of an aquatic plant and suspended clay on the activity of fish toxicants
P.A. Gilderhus
1982, North American Journal of Fisheries Management (2) 301-306
Rotenone, antimycin, permethrin, pydrin, and Salicylanilide I were tested for their toxicities against fathead minnows (Pimephales promelas) in the presence of Canadian waterweed (Elodea canadensis) or suspended clay. The plants had little effect on the activity of rotenone and antimycin but substantially reduced the activity of permethrin and pydrin (synthetic...
Heat capacities and entropies of Mg2SiOa, Mn2SiOa, and Co2SiOa between 5 and 380 K
Richard A. Robie, Bruch S. Hemingway, Humihiko Takei
1982, American Mineralogist (67) 470-482
The heat capacities of synthetic single crystats of Mg2Sio4 (forsterite), Mn2Sioa (tephroite), and co2Sioa (cobalt olivine), were measured between 5 and 3g0 K using an adiabatically shieldedc alorimeter. Mg2SiOais diamagnetic,a nd its heat capacity follows a normal sigmoidal curve at low temperatures. co2sioa shows a single sharp )r-type transition at 49.85+0102...
Seismic zonation of the Los Angeles region: A progress report
S. T. Algermissen, B. L. Askew, Roger D. Borcherdt, R. H. Campbell, S. H. Clarke Jr., Jack F. Evernden, T. E. Fumal, J. F. Gibbs, H. G. Greene, Thomas C. Hanks, E. L. Harp, S.H. Hartzell, M. G. Hooper, C.E. Johnson, W. B. Joyner, D. K. Keefer, W. J. Kockelman, D. S. McCulloch, D. M. Perkins, A. M. Rogers, P. A. Spudich, P.C. Thenhaus, J. C. Tinsley, R. C. Wilson, R.F. Yerkes, T. L. Youd, J. I. Ziony
1982, Conference Paper, Proceedings: Third international earthquake microzonation conference
No abstract available....
Hypocenter for the 1979 Imperial Valley Earthquake
Ralph J. Archuleta
1982, Geophysical Research Letters (9) 625-628
Using P-and S-wave arrival times with the laterally varying P-wave velocity structure derived from analysis of a refraction survey of the Imperial Valley, a hypocenter is ascertained for the October 15, 1979, Imperial Valley earthquake: Latitude 32° 39.50′N, Longitude 115° 19.80′W, Depth 8.0 km, Time 23:16:54.40 GMT....
Anticholinesterase poisoning of birds: Field monitoring and diagnosis of acute poisoning
E. F. Hill, W. James Fleming
1982, Environmental Toxicology and Chemistry (1) 27-38
Organophosphorus and carbamate pesticides are cholinesterase (ChE) inhibiting chemicals that have been responsible for avian die-offs. Identification of chemicals implicated in these die-offs is difficult and sometimes conclusions are solely circumstantial. However, when marked depression (inhibition) of brain ChE activity accompanies organophosphorus or carbamate residues in body tissues or ingesta,...
Measurements of fall migrant peregrine falcons from Texas and New Jersey
Charles J. Henny, W.S. Clark
1982, Journal of Field Ornithology (53) 326-332
Three subspecies of Peregrine Falcons (Falco peregrinus) breed in North America: F. p. anatum, formerly bred in all eco-geographic regions of North America south of the Arctic tundra, except for the immediate vicinity of the northwest Pacific Coast; F. p. tundrius breeds in the Arctic tundra; and F. p. pealei,...
Heavy metal concentrations in earthworms from soil amended with sewage sludge
W. N. Beyer, R. L. Chaney, B.M. Mulhern
1982, Journal of Environmental Quality (11) 381-385
Metal concentrations in soil may be elevated considerably when metal‐laden sewage sludge is spread on land. Metals in earthworms (Lumbricidae) from agricultural fields amended with sewage sludge and from experimental plots were examined to determine if earthworms are important in transferring metals in soil to wildlife. Earthworms from four sites...
Unweathered and weathered aviation kerosine: Chemical characterization and effects on hatching success of duck eggs
P.H. Albers, M. L. Gay
1982, Bulletin of Environmental Contamination and Toxicology (28) 430-434
Unweathered crude and refined oils are known to be very toxic to the embryos of aquatic birds (ALBERS 1977, 19781 SEARO et ale 1978, WHITE et al. 1979, McGILL & RICHMOND 1979, and others) but the toxicity of weathered petroleum is not as well established. The toxicity of Prudhoe Bay...
Variation in ecosystem sensitivity and response to anthropogenic atmospheric inputs, upper Great Lakes region
J.R. Stottlemyer
1982, Book, International Symposium on Hydrometeorology
No abstract available....
Micronutrients and kelp cultures: Evidence for cobalt and manganese deficiency in Southern California deep seawater
J.S. Kuwabara
1982, Science (216) 1219-1221
It has been suggested that naturally occurring copper and zinc concentrations in deep seawater are toxic to marine organisms when the free ion forms are overabundant. The effects of micronutrients on the growth of gametophytes of the ecologically and commercially significant giant kelp (Macrocystis pyrifera) were studied...
Hydrogeochemical prospecting for porphyry copper deposits in the tropical-marine climate of Puerto Rico
W. R. Miller, W. H. Ficklin, R. E. Learned
1982, Journal of Geochemical Exploration (16) 217-233
A hydrogeochemical survey utilizing waters from streams and springs was conducted in the area of two known porphyry copper deposits in the tropical-marine climate of westcentral Puerto Rico. The most important pathfinder for regional hydrogeochemical surveys is sulfate which reflects the associated pyrite mineralization. Because of increased mobility due to...
Uraniferous opal, Virgin Valley, Nevada: Conditions of formation and implications for uranium exploration
R. A. Zielinski
1982, Journal of Geochemical Exploration (16) 197-216
Uraniferous, fluorescent opal, which occurs in tuffaceous sedimentary rocks at Virgin Valley, Nevada, records the temperature and composition of uranium-rich solutions as well as the time of uranium-silica coprecipitation. Results are integrated with previous geologic and geochronologic data for the area to produce a model for uranium mobility that may...
Submarine valleys in the northeastern Gulf of Alaska: Characteristics and probable origin
Paul R. Carlson, Terry R. Bruns, Bruce F. Molnia, W.C. Schwab
1982, Marine Geology (47) 217-242
The continental shelf of the northeastern Gulf of Alaska Between Prince William Sound and Cross Sound is cut by at least eight major valleys. From west to east, these are Hinchinbrook Seavalley, Egg Island Trough, Kayak Trough, Bering Trough, Pamplona Troughs, Yakutat Valley, Alsek Valley and Yakobi Valley. Evidence common...
Mechanisms for trace metal enrichment at the surface microlayer in an estuarine salt marsh
Leonard W. Lion
1982, Marine Chemistry (11) 235-244
The relative contributions of adsorption to particulate surfaces, complexation with surface-active organic ligands and uptake by micro-organisms were evaluated with respect to their importance in the surface microlayer enrichment (‘partitioning’) of Cd, Pb and Cu. The contributions of each process were inferred from field data in which partitioning of the...
Reconnaissance Geology of the Jabal as Sukkah Quadrangle, Sheet 21/43 B, Kingdom of Saudi Arabia
Maurice R. Brock
1982, Report
The Jabal as Sukkah quadrangle (21/43 B) lies in the southern Najd region within the Arabian Shield between lat 21°30' and 22°00' N. and long 43°30' and 44°00' E. The oldest rocks exposed are a very thick sequence of volcanic flow rocks of mostly felsic to intermediate composition interbedded with...
Continuous subaqueous deposition of the Permian Castile evaporites, Delaware Basin, Texas and New Mexico
Walter E. Dean, Roger Anderson
1982, Conference Paper, Depositional and diagenetic spectra of evaporites
Structures that are common in the Castile Formation (Ochoan) of the Delaware Basin, Texas and New Mexico (Fig. 1) include fine planar laminations, breccias, microfolded laminae, and nodular anhydrite. These structures, particularly the laminae, have been used to demonstrate the subaqueous depositional history of the Castile (Anderson and Kirkland, 1966;...
