Rapid method for measuring rotenone in water at piscicidal concentrations
V. K. Dawson, P.D. Harman, D.P. Schultz, J. L. Allen
1983, Transactions of the American Fisheries Society (112) 725-727
A high‐performance liquid chromatography (HPLC) procedure that is rapid, specific, and sensitive (limit of detection <0.005 mg/liter) was developed for monitoring application and degradation rates of rotenone. For analysis, a water sample is buffered to pH 5 and injected through a Sep Pak(R) C18 disposable cartridge. The cartridge adsorbs and retains...
Seedling establishment on a landslide site
Cliff R. Hupp
1983, Castanea (48) 89-98
Two landslide scars (slide tracks) were plot sampled one and two years after landsliding to determine plant species involved in ecesis. The study site is located in a blockfield cove on Massanutten Mountain, northern Virginia. Old growth forest, adjacent to the slide tracks, is composed primarily of hemlock (Tsuga canadensis)...
Density estimation of small-mammal populations using a trapping web and distance sampling methods
David R. Anderson, Kenneth P. Burnham, Gary C. White, David L. Otis
1983, Ecology (64) 674-680
Distance sampling methodology is adapted to enable animal density (number per unit of area) to be estimated from capture-recapture and removal data. A trapping web design provides the link between capture data and distance sampling theory. The estimator of density is D = Mt+1f(0), where Mt+1 is the...
Sulfur diagenesis in Everglades peat and origin of pyrite in coal
Z. S. Altschuler, M. M. Schnepfe, C.C. Silber, F.O. Simon
1983, Science (221) 221-227
The pattern of sulfur transformation in peat across the Everglades basin indicates that pyrite formation in organic-rich swamps depends on the use of organic oxysulfur compounds in dissimilatory respiration by sulfur-reducing bacteria. This paragenesis explains the primary distribution of sulfur compounds in low-sulfur coals and possibly in most coals and...
Ages estimated from a diffusion equation model for scarp degradation
Steven M. Colman, Ken Watson
1983, Science (221) 263-265
The diffusion equation derived from the continuity equation for hillslopes is applied to scarp erosion in unconsolidated materials. Solutions to this equation allow direct calculation of the product of the rate coefficient and the age of the scarp from measurements of scarp morphology. Where the rate coefficient can be estimated...
Multiple microtektite horizons in upper Eocene marine sediments: No evidence for mass extinctions
G. Keller, Steven L. D’Hondt, T.L. Vallier
1983, Science (221) 150-152
Microtektites have been recovered from three horizons in eight middle Eocene to middle Oligocene marine sediment sequences. Five of these occurrences are coeval and of latest Eocene age (37.5 to 38.0 million years ago); three are coeval and of early late Eocene age (38.5 to 39.5 million...
Clutch size, reproductive success, and organochlorine contaminants in Atlantic coast black-crowned night-herons
Thomas W. Custer, Gary L. Hensler, T. Earl Kaiser
1983, The Auk (100) 699-710
In 1979, we gathered clutch-size and reproductive-success data on Black-crowned Night-Herons (Nycticorax nycticorax) nesting in three New England and two North Carolina colonies. In 1975, we gathered similar data from one of the New England and one of the North Carolina colonies. Latitudinal differences in clutch initiation were not evident....
Cholinesterase inhibition of birds inhabiting wheat fields treated with methyl parathion and toxaphene
K. R. Niethammer, Thomas S. Baskett
1983, Archives of Environmental Contamination and Toxicology (12) 471-475
Red-winged blackbirds (Agelaius phoeniceus) and dickcissels (Spiza americana) inhabiting wheat fields treated with 0.67 kg AI/ha methyl parathion and 1.35 kg AI/ha toxaphene showed brain cholinesterase (ChE) inhibition compared with birds inhabiting untreated fields. Maximum inhibition occurred about five days after insecticide application. ChE activities again approached “normal” 10 days...
Blood indicators of seasonal metabolic patterns in captive adult gray wolves
U.S. Seal, L.D. Mech
1983, Journal of Wildlife Management (47) 704-715
Blood samples and physical data were collected weekly from a colony of gray wolves (Canis lupus) maintained under natural weather arid light conditions. Sampling over 33 continuous months indicated that hemoglobin, hematocrit, red blood cells, mean corpuscular hemoglobin concentration (MCHC), and thyroxine exhibited consistent circannual patterns of variation in both...
Woodcock singing-ground counts and habitat changes in the northeastern United States
Thomas J. Dwyer, Daniel G. McAuley, Eric L. Derleth
1983, Journal of Wildlife Management (47) 772-779
Aerial photography from the late 1960's and the late 1970's was used to study habitat changes along 78 American woodcock (Scolopax minor) singing-ground routes in 9 northeastern states. The most noticeable changes were declines in the amount of abandoned field, cropland, shrubland, and field/pasture. The amount of land in the...
Effective record length for the T-year event
Gary D. Tasker
1983, Journal of Hydrology (64) 39-47
The effect of serial dependence on the reliability of an estimate of the T-yr. event is of importance in hydrology because design decisions are based upon the estimate. In this paper the reliability of estimates of the T-yr. event from two common distributions is given as a function of number of observations...
Concentrated nesting of mallards and gadwalls on Miller Lake Island, North Dakota
Harold F. Duebbert, John T. Lokemoen, David E. Sharp
1983, Journal of Wildlife Management (47) 729-740
Island-nesting mallards (Anas platyrhynchos) and gadwalls (A. strepera) were studied on a 4.5-ha island in 385-ha Miller Lake in northwestern North Dakota during 1976-80. During the 5-year study, 2,561 duck nests of 9 species were found on Island A located 180 m offshore; 59% were mallard and 34% were gadwall....
Mechanism and ecological significance of sperm storage in the Northern Fulmar with reference to its occurrence in other birds
Scott A. Hatch
1983, The Auk (100) 593-600
Sperm-storage glands were found in the uterovaginal (UV) region of the oviduct in Northern Fulmars (Fulmarus glacialis), Horned Puffins (Fratercula corniculata), and Leach's Storm-Petrels (Oceanodroma leucorhoa) collected before or shortly after egg laying. Previously described only in domestic Galliformes, UV sperm-storage glands may prove to be a common feature of...
Late Wisconsin mountain glaciation in the western United States
S.C. Porter, Kenneth L. Pierce, T. D. Hamilton
1983, Book chapter, Late-Quaternary environments of the United States
No abstract available....
Environmental contaminant hazards to Attwater's greater prairie-chickens
Edward L. Flickinger, Douglas M. Swineford
1983, Journal of Wildlife Management (47) 1132-1137
The Attwater's greater prairie-chicken (Tympanuchus cupido attwateri) was declared an endangered species in 1966 and exists only on the upper Gulf Coast prairie of southeast Texas. Since 1975, total numbers have declined from 2,240 to 1,456 in 1981 (Jurries 19679; W. Shifflett, Manager Attwater Prairie Chicken National Wildlife Refuge [APCNWR],...
Organochlorine pesticides and PCB's: A continuing problem for the 1980s
W. James Fleming, D. R. Clark Jr., Charles J. Henny
1983, Transactions of the North American Wildlife and Natural Resources Conference (48) 186-199
In general. decreases in OC contamination in North America are unmistakable. This is documented by the NPMP. but. more importantly. it is borne out by improvements in the reproduction and population status of the brown pelican. bald eagle, peregrine falcon, and osprey. However, some OC contamination still persists, and several...
Organochlorine residues and shell characteristics of roseate tern eggs, 1981
T. W. Custer, I.C.T. Nisbet, A. J. Krynitsky
1983, Journal of Field Ornithology (54) 394-400
Roseate Terns (Sterna dougallii) breed in two areas in the Western Hemisphere: in northeastern North America between Long Island, New York, and Nova Scotia, and around the Caribbean Sea from the Florida Keys and the Bahamas to the Netherlands Lesser Antilles (Bent 1921, Bond 1956, Nisbet 1980). Both populations are...
Effects on wildlife from use of endrin in Washington State orchards
L. J. Blus, Charles J. Henny, T. E. Kaiser, R. A. Grove
1983, Transactions of the North American Wildlife and Natural Resources Conference (48) 159-174
No abstract available....
Parathion alters incubation behavior of laughing gulls
Donald H. White, C. A. Mitchell, E. F. Hill
1983, Bulletin of Environmental Contamination and Toxicology (31) 93-97
One member of each pair of incubating laughing gulls at 9 nests was trapped, orally dosed with either 6 mg/kg parathion in corn oil or corn oil alone, and marked about the neck with red dye. Each nest was marked with a numbered stake and the treatment was recorded. A...
Contaminants in greater snow geese and their eggs
J. R. Longcore, J.D. Heyland, A. Reed, P. Laporte
1983, Journal of Wildlife Management (47) 1105-1109
No abstract available....
Effects of heptachlor on American kestrels in the Columbia Basin, Oregon
Charles J. Henny, L. J. Blus, C. J. Stafford
1983, Journal of Wildlife Management (47) 1080-1087
Wheat seeds treated with heptachlor to control wireworms (Ctenicara pruinina) resulted in American kestrels (Falco sparverius) in the Columbia Basin accumulating residues of heptachlor epoxide (HE) that reduced productivity and caused some adult mortality. The kestrel is more sensitive to HE residues in eggs than the Canada goose (Branta...
Relationships of environmental contaminants to reproductive success in red-breasted mergansers (Mergus serrator) from Lake Michigan
G. H. Heinz, S. D. Haseltine, W. L. Reichel, Gary L. Hensler
1983, Environmental Pollution (Series A) (32) 211-232
In 1977 and 1978, we studied red-breasted mergansers Mergus serrator nesting on islands in northwestern Lake Michigan to determine whether environmental contaminants were having effects on reproduction. Seventeen contaminants were measured in randomly chosen eggs from 206 nests under study. Using a variety of statistical approaches, we looked for effects of individuals...
Jiddah and vicinity, ... Saudi Arabia : 1:25,000-scale topographic maps
Saudi Arabia. Deputy Ministry for Mineral Resources, Water Resources Division, U.S. Geological Survey
1983, Report
Contents: SP-2B2. Al Kurāʻ SW --SP-3B2. Al Kurāʻ --SP-4B2. ʻUsfān SW --SP-5B2. Ra's Abḩur --SP-6B2. Buraymān --SP-7B2. Jabal Ţanḑub NW --SP-8B2. Buraymān SW --SP-9B2. Jiddah north --SP-10B2. Jabal Ţanḑub --SP-11B2. Jiddah south --SP-12B2. Jabal al Ḩamrāʼ --SP-13B2. Jazīrat Ghurāb --<br...
Early Tertiary age of pitchstone in the northern Black Hills, South Dakota
J. A. Redden, J. D. Obradovich, C. W. Naeser, R. E. Zartman, J.J. Norton
1983, Science (220) 1153-1154
A block of pitchstone in the northern Black Hills, South Dakota, is Paleocene in age, according to potassium-argon dating of biotite and fission-track dating of zircon in the sample. These data invalidate published suggestions that the age is much younger. The pitchstone is not extrusive in its present position but...
Solubility of crude oil in methane as a function of pressure and temperature
Leigh C. Price, L.M. Wenger, T. Ging, C.W. Blount
1983, Organic Geochemistry (4) 201-221
The solubility of a 44° API (0.806 sp. gr.) whole crude oil has been measured in methane with water present at temperatures of 50 to 250°C and pressures of 740 to 14,852 psi, as have the solubilities of two high molecular weight petroleum distillation fractions at temperatures of 50 to...
