Nestling sex ratio in the Southwestern Willow Flycatcher
E. H. Paxton, M. K. Sogge, T.D. McCarthey, P. Keim
2002, Condor (104) 877-881
Using molecular-genetic techniques, we determined the gender of 202 Southwestern Willow Flycatcher (Empidonax traillii extimus) nestlings from 95 nests sampled over a five-year period. Overall nestling sex ratio did not vary significantly from 50:50 among years, by clutch order, or by mating strategy (monogamous vs. polygamous pairings). However, we did...
Survey of aquatic macroinvertebrates and amphibians at Wupatki National Monument, Arizona, USA: An evaluation of selected factors affecting species richness in ephemeral pools
T. B. Graham
2002, Conference Paper, Hydrobiologia
Ephemeral aquatic habitats in Wupatki National Monument vary from naturally formed pools in arroyos over 5000 years old, to constructed catchment basins with ages estimated at 60-1000+ years old, and borrow pits and stock ponds 30-60 years old. The different ages of these pools provide different histories of colonization by...
Effects of depleted uranium on the health and survival of Ceriodaphnia dubia and Hyalella azteca
W.W. Kuhne, C.A. Caldwell, W.R. Gould, P.R. Fresquez, S. Finger
2002, Environmental Toxicology and Chemistry (21) 2198-2203
Depleted uranium (DU) has been used as a substitute for the fissionable enriched uranium component of atomic weapons tested at Los Alamos National Laboratory (LANL) (Los Alamos, NM, USA) since the early 1950s, resulting in considerable concentrations of DU in the soils within the test sites. Although the movement of...
Evidence for large-scale reworking of Campanian sediments into the Upper Maastrichtian Peedee formation at Burches Ferry, South Carolina
Self-Trail J.M., R. A. Christopher, D.C. Prowell
2002, Southeastern Geology (41) 145-158
A 44-ft-deep corehole (FLO-311) was drilled at Burches Ferry, Florence County, S.C., in order to document the lithologic and paleontologic characteristics of the boundary between the upper Campanian Donoho Creek Formation and the upper Maastrichtian Peedee Formation. Palynomorph and calcareous nannofossil data provide detailed age control for these sediments. Examination...
Deep arid system hydrodynamics 1. Equilibrium states and response times in thick desert vadose zones
Michelle Ann Walvoord, Mitchell A. Plummer, Fred M. Phillips, Andrew V. Wolfsberg
2002, Water Resources Research (38) 44-1-44-15
Quantifying moisture fluxes through deep desert soils remains difficult because of the small magnitude of the fluxes and the lack of a comprehensive model to describe flow and transport through such dry material. A particular challenge for such a model is reproducing both observed matric potential and chloride profiles. We...
The Fish Canyon magma body, San Juan volcanic field, Colorado: Rejuvenation and eruption of an upper-crustal batholith
Olivier Bachmann, Michael A. Dungan, Peter W. Lipman
2002, Journal of Petrology (43) 1469-1503
More than 5000 km3 of nearly compositionally homogeneous crystal-rich dacite (∼68 wt % SiO2: ∼45% Pl + Kfs + Qtz + Hbl + Bt + Spn + Mag + Ilm + Ap + Zrn + Po) erupted from the Fish Canyon magma body during three phases: (1) the pre-caldera Pagosa Peak...
Implications of flood pulse restoration for Populus regeneration on the upper Missouri River
Ken D. Bovee, Michael L. Scott
2002, River Research and Applications (18) 287-298
We developed a mass balance flow model to reconstruct unregulated daily peak flows in the National Wild and Scenic reach of the Missouri River, Montana. Results indicated that although the observed frequency of large peak flows has not changed in the post-dam period, their magnitude has been reduced from 40...
Influence of the proximity and amount of human development and roads on the occurrence of the red imported fire ant in the lower Florida Keys
E.A. Forys, Craig R. Allen, D.P. Wojcik
2002, Biological Conservation (108) 27-33
We examined the influence of both the proximity and extent of human developments and paved roads on the presence of the predatory, non-indigenous, red imported fire ant (Solenopsis invicta). This species was inadvertently introduced into the United States at the port of Mobile, Alabama, around 1930 and rapidly spread to...
Carbon isotope fractionation of methyl bromide during agricultural soil fumigations
M. Bill, L.G. Miller, Allen H. Goldstein
2002, Conference Paper, Biogeochemistry
The isotopic composition of methyl bromide (CH3Br) has been suggested to be a potentially useful tracer for constraining the global CH3Br budget. In order to determine the carbon isotopic composition of CH3Br emitted from the most significant anthropogenic application (pre-plant fumigation) we directly measured the ??13C of CH3Br released during...
Holocene tephrochronology of the Cold Bay area, southwest Alaska Peninsula
E.C. Carson, J.H. Fournelle, T. P. Miller, D.M. Mickelson
2002, Quaternary Science Reviews (21) 2213-2228
The major-element glass geochemistry of 92 tephra samples from the southwest Alaska Peninsula provides the basis for establishing a Holocene tephrochronology for the region. Electron microprobe analysis has been combined with field descriptions of samples, stratigraphic relationships between tephra samples and sample localities, and glass shard micro-morphology to correlate these...
Mercury adsorption properties of sulfur-impregnated adsorbents
N.-C. Hsi, M.J. Rood, M. Rostam-Abadi, S. Chen, R. Chang
2002, Journal of Environmental Engineering (128) 1080-1089
Carbonaceous and noncarbonaceous adsorbents were impregnated with elemental sulfur to evaluate the chemical and physical properties of the adsorbents and their equilibrium mercury adsorption capacities. Simulated coal combustion flue gas conditions were used to determine the equilibrium adsorption capacities for Hg0 and HgCl2 gases to better understand how to remove...
Groundwater contamination downstream of a contaminant penetration site. I. Extension-expansion of the contaminant plume
H. Rubin, R. W. Buddemeier
2002, Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering (37) 1781-1812
This study concerns the possible use of boundary layer (BL) approach for the analysis and evaluation of contaminant transport in groundwater due to contaminant penetration into the groundwater aquifer through a site of limited size. The contaminant penetration may occur through either the upper (surface) or lower (bedrock) boundary of...
Persistent organic pollutants in murre eggs from the Gulf of Alaska and Bering Sea
John R. Kucklick, Stacy S. Vander Pol, P.R. Becker, Rebecca S. Pugh, Kristin S. Simac, G.W. York, D.G. Rosenau
2002, Conference Paper, Proceedings: 22nd international symposium on halogenated environmental organic pollutants and persistent organic pollutants (POPs)
No abstract available....
Hydroacoustic Current Meters for the Measurement of Discharge in Shallow Rivers and Streams
S. E. Morlock, G. T. Fisher
Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B.Wahl T.L.Pugh C.A.Oberg K.A.Vermeyen T.B., editor(s)
2002, Conference Paper, Hydraulic Measurements and Experimental Methods
The U.S. Geological Survey (USGS) is evaluating the use of hydroacoustic current meters for making discharge measurements in shallow rivers and streams. The USGS historically has made discharge measurements in shallow rivers using mechanical, impellor-type current meters attached to a wading rod. The evaluation project has focused on three categories...
Rapid loss of lampricide from catfish and rainbow trout following routine treatment
V. K. Dawson, Theresa M. Schreier, M.A. Boogaard, N.J. Spanjers, W.H. Gingerich
2002, Journal of Agricultural and Food Chemistry (50) 6780-6785
Rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) were exposed to 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide (niclosamide) during a sea lamprey control treatment of the Ford River, located in the upper peninsula of Michigan. Caged fish were exposed to a nominal concentration of 0.02 mg/L of niclosamide for a period...
Scaling roads and wildlife: The Cinderella principle
J.A. Bissonette
2002, Conference Paper, Zeitschrift fur Jagdwissenschaft
It is clear that a reduction in both direct and indirect effects of roads and road networks must be the goal of management agencies. However, increased permeability of roaded landscapes can only be achieved by up-front planning and subsequent mitigative actions. The key is to understand that roads must be...
Sequestration of priority pollutant PAHs from sediment pore water employing semipermeable membrane devices
K.S. Williamson, J. D. Petty, J.N. Huckins, J.A. Lebo, E.M. Kaiser
2002, Chemosphere (49) 717-729
Semipermeable membrane devices (SPMDs) were employed to sample sediment pore water in static exposure studies under controlled laboratory conditions using (control pond and formulated) sediments fortified with 15 priority pollutant polycyclic aromatic hydrocarbons (PPPAHs). The sediment fortification level of 750 ng/g was selected on the basis of what might be...
A reconnaissance method for delineation of tracts for regional-scale mineral-resource assessment based on geologic-map data
Gary L. Raines, Mark J. Mihalasky
2002, Natural Resources Research (11) 241-248
The U.S. Geological Survey (USGS) is proposing to conduct a global mineral-resource assessment using geologic maps, significant deposits, and exploration history as minimal data requirements. Using a geologic map and locations of significant pluton-related deposits, the pluton-related-deposit tract maps from the USGS national mineral-resource assessment have been reproduced with GIS-based...
On-orbit radiometric calibration over time and between spacecraft using the moon
H. H. Kieffer, T.C. Stone, R.A. Barnes, S. Bender, R.E. Eplee Jr., J. Mendenhall, L. Ong
Fujisada H.Lurie J.B.Aten M.L.Weber K., editor(s)
2002, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
The Robotic Lunar Observatory (ROLO) project has developed a spectral irradiance model of the Moon that accounts for variations with lunar phase through the bright half of a month, lunar librations, and the location of an Earth-orbiting spacecraft. The methodology of comparing spacecraft observations of the Moon with this model...
Mercury and methylmercury contamination related to artisanal gold mining, Suriname
J. E. Gray, V.F. Labson, J. N. Weaver, D. P. Krabbenhoft
2002, Geophysical Research Letters (29) 20-1-20-4
Elemental Hg-Au amalgamation mining practices are used widely in many developing countries resulting in significant Hg contamination of surrounding ecosystems. We have measured total Hg and methyl-Hg concentrations in sediment and water collected from artisanal Au mines and these are the first Hg speciation data from such mines in Suriname....
Effects of an advanced temperature cycle on smolt development and endocrinology indicate that temperature is not a zeitgeber for smolting in Atlantic salmon
S. D. McCormick, J. M. Shrimpton, S. Moriyama, Bjorn Thrandur Bjornsson
2002, Journal of Experimental Biology (205) 3553-3560
Atlantic salmon (Salmo salar) juveniles were reared under simulated conditions of normal photoperiod (LDN) or short days (LD 9:15) and ambient temperature (AMB: normal temperature increases in April) or an advanced temperature cycle (ADV: temperature increases in February). Under both photoperiod conditions, the timing of increased and peak levels of...
Stable isotope composition of waters in the Great Basin, United States 1. Air-mass trajectories
I. Friedman, J.M. Harris, G.I. Smith, C. A. Johnson
2002, Journal of Geophysical Research D: Atmospheres (107)
Isentropic trajectories, calculated using the NOAA/Climate Monitoring and Diagnostics Laboratory's isentropic transport model, were used to determine air-parcel origins and the influence of air mass trajectories on the isotopic composition of precipitation events that occurred between October 1991 and September 1993 at Cedar City, Utah, and Winnemucca, Nevada. Examination of...
Spent shot availability and ingestion on areas managed for mourning doves
J.H. Schulz, J.J. Millspaugh, B.E. Washburn, G.R. Wester, J. T. Lanigan III, J. C. Franson
2002, Wildlife Society Bulletin (30) 112-120
Mourning dove (Zenaida macroura) hunting is becoming increasingly popular, especially in managed shooting fields. Given the possible increase in the availability of lead (Pb) shot on these areas, our objective was to estimate availability and ingestion of spent shot at the Eagle Bluffs Conservation Area (EBCA, hunted with nontoxic shot)...
Toxoplasmosis in three species of native and introduced Hawaiian birds
Thierry M. Work, J. Gregory Massey, D. S. Lindsay, J. P. Dubey
2002, Journal of Parasitology (88) 1040-1042
Toxoplasma gondii was found in endemic Hawaiian birds, including 2 nene geese (Nesochen sandvicensis), 1 red-footed booby (Sula sula), and an introduced bird, the Erckels francolin (Francolinus erckelii). All 4 birds died of disseminated toxoplasmosis; the parasite was found in sections of many organs, and the diagnosis was confirmed by immunohistochemical...
Plotting equation for Gaussian percentiles and a spreadsheet program for generating probability plots
J. H. Balsillie, Joseph F. Donoghue, K. M. Butler, J. L. Koch
2002, Journal of Sedimentary Research (72) 929-933
Two-dimensional plotting tools can be of invaluable assistance in analytical scientific pursuits, and have been widely used in the analysis and interpretation of sedimentologic data. We consider, in this work, the use of arithmetic probability paper (APP). Most statistical computer applications do not allow for the generation of APP plots,...
