Assessing effects of organophosphates on songbirds: Comparison of a captive and a free-living population
Christian E. Grue, G.V.N. Powell, C.H. Gorsuch
1982, Journal of Wildlife Management (46) 766-768
No abstract available. ...
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...
Sedimentation and deformation in the Amlia Fracture Zone sector of the Aleutian Trench
D.W. Scholl, T.L. Vallier, A.J. Stevenson
1982, Marine Geology (48) 105-134
A wedge-shaped, landward thickening mass of sedimentary deposits composed chiefly of terrigenous turbidite beds underlies the west-south west-trending Amlia sector (172°20′–173°30′W) of the Aleutian Trench. Pacific oceanic crust dips northward beneath the sector's sedimentary wedge and obliquely underthrusts (30° off normal) the adjacent Aleutian Ridge. The trench floor and subsurface...
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,...
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...
A simple demonstration of the relationship between classification and canonical variates analysis
Byron K. Williams
1982, American Statistician (36) 363-365
No abstract available....
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...
Age constraints on the proposed Plio-Pleistocene boundary stratotype at Vrica, Italy
J. D. Obradovich, C. W. Naeser, G. A. Izett, G. Pasini, G. Bigazzi
1982, Nature (298) 55-59
Estimates1–4 of the age of the stratotype Plio–Pleistocene boundary in Italy range from 1.65 to 2.5 Myr. We aim here to clarify this dating confusion, and we present new radiometric data on ashes from the proposed stratotype section, Vrica, Italy which indicate that the Plio–Pleistocene boundary must be...
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,...
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...
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...
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,...
On the status of in-situ strong ground motion and structural response investigations
C. Rojahn, Roger D. Borcherdt
1982, Conference Paper, Proceedings: Third international earthquake microzonation conference
No abstract available....
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,...
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...
Estimating pesticide burdens of bats from guano analyses
D. R. Clark Jr., R. K. LaVal, M.D. Tuttle
1982, Bulletin of Environmental Contamination and Toxicology (29) 214-220
Bat guano was first collected and analyzed for environmental pollutants in the early 1970's (REIDINGER 1972:53-64; PETIT & ALTENBACH 1973). Later analyses of both guano and bats from two roosts indicated a correspondence between levels of organochlorine residues in guano and in bat carcasses from the same colony (CLARK &...
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...
Parathion accumulation in cricket frogs and its effect on American kestrels
W. James Fleming, H. de Chacin, O. H. Pattee, T. G. Lamont
1982, Journal of Toxicology and Environmental Health (10) 921-927
Adult cricket frogs (Acris crepitans) were held individually for 96 h in static systems containing initial concentrations of either 0, 0.1, 1.0, or 10 ppm parathion in 10 ml water. Mortality of cricket frogs was directly related to the parathion concentration in the water. Frogs from the 1.0- and 10-ppm...
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...
