Invertebrate communities
C.P. Sandoval, K. D. Lafferty
R.F. Ambrose, editor(s)
1995, Report
No abstract available at this time...
Population status of the mountain yellow-legged frog (Rana muscosa) in the Angeles National Forest. Final report prepared for the United States Department of Agriculture, Angeles National Forest, Arcadia, California, through Interagency Agreement (5-01-69-019)
M.R. Jennings
1995, Report
No abstract available at this time...
Wildlife mortality attributed to organophosphorus and carbamate pesticides
Linda C. Glaser
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
Organophosphorus (OP) and carbamate pesticides are used widely in agricultural and residential applications as insecticides, herbicides, fungicides, and rodenticides. This family of chemicals replaced the organochlorine pesticides banned for use in the United States in the 1970's. Unlike organochlorine pesticides, which are long-lived in the environment and cause biological damage...
Environmental probabilistic quantitative assessment methodologies
R. A. Crovelli
1995, Computers & Geosciences (21) 971-984
In this paper, four petroleum resource assessment methodologies are presented as possible pollution assessment methodologies, even though petroleum as a resource is desirable, whereas pollution is undesirable. A methodology is defined in this paper to consist of a probability model and a probabilistic method, where the method is used to...
Maastrichtian ammonites chiefly from the Prairie Bluff Chalk in Alabama and Mississippi
W. A. Cobban, W. J. Kennedy
1995, Journal of Paleontology (69)
The Prairie Bluff Chalk of Alabama and Mississippi yields a diverse ammonite fauna of Maastrichtian age. Twenty-eight species, of which three are new, are recorded herein: Pseudophyllites indra (Forbes, 1846), Hauericeras rembda (Forbes, 1846), Pachydiscus (Pachydiscus) maconensis n. sp., P. (P.) cf. gollevillensis (d'Orbigny, 1850), P. (P.) jacquoti (Seunes, 1890), P. (P.) <span...
Bird communities
K. D. Lafferty
R.F. Ambrose, editor(s)
1995, Report
No abstract available at this time...
Digestive performance of the desert tortoise (Gopherus agassizii) fed native and non-native desert vegetation. Final Report to California Department of Parks and Recreation, Off-Highway Motor Vehicle Recreation Division, Sacramento, California
H.W. Avery
1995, Report
No abstract available at this time...
Causes of eagle deaths
J. Christian Franson, Lou Sileo, Nancy J. Thomas
Edward T. LaRoe, Gaye S. Farris, Catherine E. Puckett, Peter D. Doran, Michael J. Mac, editor(s)
1995, Book chapter, Our living resources: A report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems
The U.S. Department of the Interior has investigated the deaths of more than 4,300 bald and golden eagles (Haliaeetus leucocephalus and Aquila chrysaetos) since the early 1960's as part of an ongoing effort to monitor causes of wildlife mortality. The availability of dead eagles for study depends on finding carcasses...
Fish communities
K. D. Lafferty, J.A. Altstatt
R.F. Ambrose, editor(s)
1995, Report
No abstract available at this time...
Quaternary geologic map of the Palisades Creek-Comanche Creek area, eastern Grand Canyon, Arizona
Ivo Lucchitta, Carol M. Dehler, M. E. Davis, P. G. Basdekas, K. J. Burke
1995, Open-File Report 95-832
No abstract available....
Spatial variation in background groundwater geochemistry of the Gurinai Wetland, Gobi Desert, Inner Mongolia
Weizu Gu, N.E. Peters
1995, Models for assessing and monitoring groundwater quality. Proc. symposium, Boulder, 1995 (227) 85-90
Age dating of groundwater from several hand-dug wells in the Gurinai Wetland of the Badajilin-Gobi Desert, north-central China, indicated a continuum from present to 7625??155 years B.P. Water age correlates with concentration for some constituents. In general, concentrations of Fe, Cr, Se and Sr increase with increasing age, whereas Ca,...
Lake trout (Salvelinus namaycush) populations in Lake Superior and their restoration in 1959-1993
Michael J. Hansen, James W. Peck, Richard G. Schorfhaar, James H. Selgeby, Donald R. Schreiner, Stephen T. Schram, Bruce L. Swanson, Wayne R. MacCallum, Mary K. Burnham-Curtis, Gary L. Curtis, John W. Heinrich, Robert J. Young
1995, Journal of Great Lakes Research (21) 152-175
Naturally-reproducing populations of lake trout (Salvelinus namaycush) have been reestablished in most of Lake Superior, but have not been restored to 1929-1943 average abundance. Progress toward lake trout restoration in Lake Superior is described, management actions are reviewed, and the effectiveness of those actions is evaluated; especially stocking lake trout...
Seasonal growth and duration of the parasitic life stage of the landlocked sea lamprey (Petromyzon marinus)
Roger A. Bergstedt, William D. Swink
1995, Canadian Journal of Fisheries and Aquatic Sciences (52) 1257-1264
We used lengths and weights of 2367 live parasitic-phase sea lampreys (Petromyzon marinus) collected from Lake Huron, 1984–1990, to calculate their mean size at half-month intervals. Growth in weight was linear during June through September; increments averaged 11.1 g per half month. Growth increased sharply in October to several times the...
Diet and feeding periodicity of ruffe in the St. Louis River estuary, Lake Superior
Derek H. Ogle, James H. Selgeby, Raymond M. Newman, Mary G. Henry
1995, Transactions of the American Fisheries Society (124) 356-369
Ruffe Gymnocephalus cernuus, a percid native to Europe and Asia, is established in the Lake Superior drainage and could have negative impacts on native fish through competition for forage and predation on fish eggs. We investigated the diet of ruffes in the 4,654-ha St. Louis River estuary in May–October 1989–1990 and...
Chronic bioassays of rainbow trout fry with compounds representative of contaminants in Great Lakes fish
Dora R. Passino-Reader, William H. Berlin, James P. Hickey
1995, Journal of Great Lakes Research (21) 373-383
To evaluate the hazard of organic compounds detected in Great Lakes fish by gas chromatography/mass spectrometry, we tested compounds representative of heterocyclic nitrogen compounds, polycyclic aromatic hydrocarbons, and cyclic alkanes and alkenes. Sixty-day bioassays on the effects of nicotine, phenanthrene, pinane, and pinene on the behavior, growth, and survival of...
Frequent outburst floods from South Tahoma Glacier, Mount Rainier, USA: Relation to debris flows, meteorological origin, and implications for subglacial hydrology
J. S. Walder, C. L. Driedger
1995, Journal of Glaciology (41) 1-10
Destructive debris flows occur frequently at glacierized Mount Rainier volcano, Washington, U.S.A. Twenty-three such flows have occurred in the Tahoma Creek valley since 1967. Hydrologic and geomorphic evidence indicate that all or nearly all of these flows began as outburst floods from South Tahoma Glacier. Flood waters...
Jarosite-water oxygen and hydrogen isotope fractionations: preliminary experimental data
R. O. Rye, R.E. Stoffregen
1995, Economic Geology (90) 2336-2342
No abstract available....
Rhenium-osmium concentration and isotope systematics in group IIAB iron meteorites
J. W. Morgan, M.F. Horan, R.J. Walker, J. N. Grossman
1995, Geochimica et Cosmochimica Acta (59) 2331-2344
Rhenium and osmium abundances, and osmium isotopic compositions were measured by negative thermal ionization mass spectrometry in thirty samples, including replicates, of five IIA and eight IIB iron meteorites. Concentrations in HA irons range from 4800 ppb Re and 66000 ppb Os (Negrillos) to 160 ppb Re and 800 ppb...
Interlaboratory comparison of reference materials for nitrogen-isotope-ratio measurements
J.K. Bohlke, Tyler B. Coplen
1995, Report, Reference and intercomparison materials for stable isotopes of light elements, IAEA TECDOC 825
Aliquots of seven different reference materials were distributed for an interlaboratory comparison of stable nitrogen-isotope-ratio measurements. Results from 15 laboratories were compiled and evaluated selectively to yield provisional values of 515N for each material, i, with respect to atmospheric N2 (o1SN,7air). The 515N values reported by the different laboratories are...
Winter wolf predation in a multiple ungulate prey system, Gates of the Arctic National Park, Alaska
Bruce W. Dale, Layne G. Adams, R. Terry Bowyer
Ludwig N. Carbyn, Steven H. Fritts, Dale R. Seip, editor(s)
1995, Occasional Publication of the Canadian Circumpolar Institute 35
We investigated patterns of winter wolf predation, including prey selection, prey switching, kill rates, carcass utilization, and consumption rates for four wolf packs during three different study periods (March 1989, March 1990, and November 1990) in Gates of the Arctic National Park and Preserve, Alaska. Wolves killed predominantly caribou (165...
Mesothermal gold deposits of Westland, New Zealand and southern Alaska: Products of similar tectonic processes?
R.J. Goldfarb, T. Christie, D. Skinner, Peter J. Haeussler, D. C. Bradley
Jeffrey L. Mauk, George, editor(s)
1995, Conference Paper, Proceedings of the 1995 Pacific Rim Congress
No abstract available....
Correlation of Ordovician rocks of northern Alaska
Anita G. Harris, Julie A. Dumoulin, John E. Repetski, Claire Carter
John D. Cooper, Mary L. Droser, Stanley C. Finney, editor(s)
1995, Conference Paper, Ordovician odyssey: Short papers for the seventh international symposium on the Ordovician system (SEPM Book 77)
The Ordovician sequences presented in this report were chosen to cover a range of depositional and structural settings found in northern Alaska. Consequently, the quality of lithostratigraphic, paleontologic, and sedimentologic data is variable. Until 1982, Ordovician rocks in northern Alaska were known only from a few, widely separated localities. Since...
Polar bear research in the Beaufort Sea
Steven C. Amstrup, George M. Durner
Øystein Wiig, Erik W. Born, Gerald W. Garner, editor(s)
1995, Occasional Papers of the IUCN Species Survival Comission (SSC) 10
Current research is designed to determine the status of the polar bear population in the Beaufort Sea and adjacent areas. One goal is to determine how polar bears are distributed relative to each other and habitat features, and to define population boundaries. Another goal is to determine the population size...
Ecology and conservation of the Marbled Murrelet in North America: An overview
C. John Ralph, George L. Hunt Jr., Martin G. Raphael, John F. Piatt
1995, Book chapter, Ecology and conservation of the Marbled Murrelet (USDA Forest Service General Technical Report PSW-GTR-152)
Over the past decade, the Marbled Murrelet has become a focus of much controversy. It was listed as threatened in Washington, Oregon, and California by the U.S. Fish and Wildlife Service in February 1993. In order to aid the various agencies with management, the Marbled Murrelet Conservation Assessment was formed...
Point count length and detection of forest neotropical migrant birds
D.K. Dawson, D. R. Smith, C.S. Robbins
1995, Report PSW-GTR-149
No abstract available at this time...
