The 12 September 1999 Upper East Rift Zone dike intrusion at Kilauea Volcano, Hawaii
Peter Cervelli, P. Segall, F. Amelung, H. Garbeil, C. Meertens, S. Owen, Asta Mikijus, M. Lisowski
2002, Journal of Geophysical Research B: Solid Earth (107) ECV 3-1-ECV 3-13
Deformation associated with an earthquake swarm on 12 September 1999 in the Upper East Rift Zone of Kilauea Volcano was recorded by continuous GPS receivers and by borehole tiltmeters. Analyses of campaign GPS, leveling data, and interferometric synthetic aperture radar (InSAR) data from the ERS-2 satellite also reveal significant deformation...
Evaluation of a habitat suitability index model
A.H. Farmer, B.S. Cade, D.F. Stauffer
2002, Conference Paper, Indiana Bat: Biology and Management of an Endangered Species
We assisted with development of a model for maternity habitat of the Indiana bat (Myotis soda/is), for use in conducting assessments of projects potentially impacting this endangered species. We started with an existing model, modified that model in a workshop, and evaluated the revised model, using data previously collected by...
Space use, migratory connectivity, and population segregation among willets breeding in the western Great Basin
Susan M. Haig, Lewis W. Oring, Peter M. Sanzenbacher, Oriane W. Taft
2002, Condor (104) 620-630
Western Willets (Catoptrophorus semipalmatus inornatus) were banded (n = 146 breeding adults and chicks) and radio-marked (n = 68 adults) at three western Great Basin wetland complexes to determine inter- and intraseasonal space use and movement patterns (primarily in 1998 and 1999). Birds were then tracked to overwintering sites where...
The Sacatosa coalbed methane field: A first For Texas
Charles E. Barker, Peter D. Warwick, Robert J. Scott, J.M. Klein, R.W. Hook
2002, Conference Paper, AAPG Annual Meeting
In 2001, The Exploration Company (TXCO), San Antonio, announced the Sacatosa Coalbed Methane (CBM) Field in Maverick County. This field is the first CBM field in Texas (Fig. 1). The field is producing from bituminous coal in the Cretaceous Olmos Formation that outcrops to the west and dips easterly towards...
The oral bioavailability and toxicokinetics of methylmercury in common loon (Gavia immer) chicks
F. Fournier, W. H. Karasov, K.P. Kenow, M.W. Meyer, R. K. Hines
2002, Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology (133) 703-714
We compared the toxicokinetics of methylmercury in captive common loon chicks during two time intervals to assess the impact of feather growth on the kinetics of mercury. We also determined the oral bioavailability of methylmercury during these trials to test for age-related changes. The blood concentration-time curves for individuals dosed...
Groundwater contamination downstream of a contaminant penetration site. II. Horizontal penetration 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) 1813-1839
Part I of this study (Rubin, H.; Buddemeier, R.W. Groundwater Contamination Downstream of a Contaminant Penetration Site Part 1: Extension-Expansion of the Contaminant Plume. J. of Environmental Science and Health Part A (in press).) addressed cases, in which a comparatively thin contaminated region represented by boundary layers (BLs) developed within...
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,...
Mexican native trouts: A review of their history and current systematic and conservation status
D.A. Hendrickson, H.E. Perez, L.T. Findley, W. Forbes, J.R. Tomelleri, Richard L. Mayden, J.L. Nielsen, B. Jensen, G.R. Campos, A.V. Romero, A. van der Heiden, F. Camarena, F.J. Garcia de Leon
2002, Reviews in Fish Biology and Fisheries (12) 273-316
While biologists have been aware of the existence of native Mexican trouts for over a century, they have received little study. The few early studies that did much more than mention their existence began in the 1930s and continued into the early 1960s, focusing primarily on distributional surveys and taxonomic...
Conflict of interest between a nematode and a trematode in an amphipod host: Test of the "sabotage" hypothesis
Frederic Thomas, Jerome Fauchier, Kevin D. Lafferty
2002, Behavioral Ecology and Sociobiology (51) 296-301
Microphallus papillorobustus is a manipulative trematode that induces strong behavioural alterations in the gamaridean amphipod Gammarus insensibilis, making the amphipod more vulnerable to predation by aquatic birds (definitive hosts). Conversely, the sympatric nematodeGammarinema gammari uses Gammarus insensibilis as a habitat and a...
Anaerobic oxidation of arsenite in Mono Lake water and by a facultative, arsenite-oxidizing chemoautotroph, strain MLHE-1
Ronald S. Oremland, S.E. Hoeft, J.M. Santini, N. Bano, R.A. Hollibaugh, J.T. Hollibaugh
2002, Applied and Environmental Microbiology (68) 4795-4802
Arsenite [As(III)]-enriched anoxic bottom water from Mono Lake, California, produced arsenate [As(V)] during incubation with either nitrate or nitrite. No such oxidation occurred in killed controls or in live samples incubated without added nitrate or nitrite. A small amount of biological As(III) oxidation...
Quantifying flow-dependent changes in subyearling fall chinook salmon rearing habitat using two-dimensional spatially explicit modeling
K.F. Tiffan, R.D. Garland, D.W. Rondorf
2002, North American Journal of Fisheries Management (22) 713-726
We used an analysis based on a geographic information system (GIS) to determine the amount of rearing habitat and stranding area for subyearling fall chinook salmon Oncorhynchus tshawytscha in the Hanford Reach of the Columbia River at steady-state flows ranging from 1,416 to 11,328 m3/s. High-resolution river channel bathymetry was...
Evidence for large earthquakes on the San Andreas fault at the Wrightwood, California paleoseismic site: A.D. 500 to present
T. E. Fumal, R. J. Weldon, G. P. Biasi, T. E. Dawson, G. G. Seitz, W. T. Frost, David P. Schwartz
2002, Bulletin of the Seismological Society of America (92) 2726-2760
We present structural and stratigraphic evidence from a paleoseismic site near Wrightwood, California, for 14 large earthquakes that occurred on the southern San Andreas fault during the past 1500 years. In a network of 38 trenches and creek-bank exposures, we have exposed a composite section of interbedded debris flow deposits...
Using an electronic compass to determine telemetry azimuths
R. R. Cox Jr., J.D. Scalf, B.E. Jamison, R.S. Lutz
2002, Wildlife Society Bulletin (30) 1039-1043
Researchers typically collect azimuths from known locations to estimate locations of radiomarked animals. Mobile, vehicle-mounted telemetry receiving systems frequently are used to gather azimuth data. Use of mobile systems typically involves estimating the vehicle's orientation to grid north (vehicle azimuth), recording an azimuth to the transmitter relative to the vehicle...
Toxicity assessment of sediments from the Grand Calumet River and Indiana Harbor Canal in northwestern Indiana, USA
C.G. Ingersoll, D.D. MacDonald, W. G. Brumbaugh, B. Thomas Johnson, N.E. Kemble, J.L. Kunz, T.W. May, N. Wang, J.R. Smith, D. W. Sparks, D.S. Ireland
2002, Archives of Environmental Contamination and Toxicology (43) 156-167
The objective of this study was to evaluate the toxicity of sediments from the Grand Calumet River and Indiana Harbor Canal located in northwestern Indiana, USA. Toxicity tests used in this assessment included 10-day sediment exposures with the amphipod Hyalella azteca, 31-day sediment exposures with the oligochaete <i...
Spatial patterns in the abundance of the coastal horned lizard
Robert N. Fisher, Andrew V. Suarez, Ted J. Case
2002, Conservation Biology (16) 205-215
Coastal horned lizards ( Phrynosoma coronatum) have undergone severe declines in southern California and are a candidate species for state and federal listing under the Endangered Species Act. Quantitative data on their habitat use, abundance, and distribution are lacking, however. We investigated the determinants of abundance for coastal horned lizards at...
Magnitude estimates of two large aftershocks of the 16 December 1811 New Madrid earthquake
S. E. Hough, S. Martin
2002, Bulletin of the Seismological Society of America (92) 3259-3268
The three principal New Madrid mainshocks of 1811-1812 were followed by extensive aftershock sequences that included numerous felt events. Although no instrumental data are available for either the mainshocks or the aftershocks, available historical accounts do provide information that can be used to estimate magnitudes and locations for the large...
Association of methylmercury with dissolved humic acids
A. Amirbahman, A.L. Reid, T.A. Haines, J. S. Kahl, C. Arnold
2002, Environmental Science & Technology (36) 690-695
Sorption of methylmercury (MeHg) to three different humic acids was investigated as a function of pH and humic concentration. The extent of sorption did not show a strong pH dependence within the pH range of 5−9. Below pH 5, a decrease in adsorption for all humic samples was observed. The...
Use of acoustic classification of sidescan sonar data for mapping benthic habitat in the Northern Channel Islands, California
Guy R. Cochrane, Kevin D. Lafferty
2002, Continental Shelf Research (22) 683-690
Highly reflective seafloor features imaged by sidescan sonar in nearshore waters off the Northern Channel Islands (California, USA) have been observed in subsequent submersible dives to be areas of thin sand covering bedrock. Adjacent areas of rocky seafloor, suitable as habitat for endangered species of abalone and rockfish, and encrusting...
Space use, migratory connectivity, and population segregation among Willets breeding in the western Great Basin
S. M. Haig, L.W. Oring, P.M. Sanzenbacher, O.W. Taft
2002, Condor (104) 620-630
Western Willets (Catoptrophorus semipalmatus inornatus) were banded (n = 146 breeding adults and chicks) and radio-marked (n = 68 adults) at three western Great Basin wetland complexes to determine inter- and intraseasonal space use and movement patterns (primarily in 1998 and 1999). Birds were then tracked to overwintering sites where...
Microbial ecology of a crude oil contaminated aquifer
B.A. Bekins, I.M. Cozzarelli, E. Warren, E.M. Godsy
2002, IAHS-AISH Publication 57-64
Detailed microbial analyses of a glacial outwash aquifer contaminated by crude oil provide insights into the pattern of microbial succession from iron reducing to methanogenic in the anaerobic portion of the contaminant plume. We analysed sediments from this area for populations of aerobes, iron reducers, fermenters and methanogens, using the...
Comparison of stomach contents of haddock (Melanogrammus aeglefinus) from the 1981 and 1991 North Sea International Stomach Sampling Projects
S.A. Adlerstein, A. Temming, N. Mergardt
2002, ICES Journal of Marine Science (59) 497-515
This study analyses data from over 20 000 haddock stomachs collected during the 1981 and 1991 Stomach Sampling Projects of the North Sea. Sampling was within the framework of the Multispecies Virtual Population Analysis (MSVPA) for fisheries stock assessment. In 1981 stomachs were collected to calculate input feeding parameters from...
Long-term dynamics of winter and summer annual communities in the Chihuahuan Desert
Qinfeng Guo, James H. Brown, T. J. Valone
2002, Journal of Vegetation Science (13) 575-584
Winter and summer annuals in the Chihuahuan Desert have been intensively studied in recent years but little is known about the similarities and differences in the dynamics between these two communities. Using 15 yr of census data from permanent quadrats, this paper compared the characteristics and temporal dynamics of these...
Using flowmeter pulse tests to define hydraulic connections in the subsurface: A fractured shale example
J.H. Williams, Frederick L. Paillet
2002, Journal of Hydrology (265) 100-117
Cross-borehole flowmeter pulse tests define subsurface connections between discrete fractures using short stress periods to monitor the propagation of the pulse through the flow system. This technique is an improvement over other cross-borehole techniques because measurements can be made in open boreholes without packers or previous identification of water-producing intervals....
U-Pb geochronology of zircon and polygenetic titanite from the Glastonbury Complex, Connecticut, USA: An integrated SEM, EMPA, TIMS, and SHRIMP study
J. N. Aleinikoff, R. P. Wintsch, C.M. Fanning, M. J. Dorais
2002, Chemical Geology (188) 125-147
U-Pb ages for zircon and titanite from a granodioritic gneiss in the Glastonbury Complex, Connecticut, have been determined using both isotope dilution thermal ionization mass spectrometry (TIMS) and the sensitive high resolution ion microprobe (SHRIMP). Zircons occur in three morphologic populations: (1) equant to stubby, multifaceted, colorless, (2) prismatic, dark...
Processing, mosaicking and management of the Monterey Bay digital sidescan-sonar images
P.S. Chavez Jr., J. Isbrecht, P. Galanis, G.L. Gabel, S.C. Sides, D.L. Soltesz, Stephanie L. Ross, M.G. Velasco
2002, Marine Geology (181) 305-315
Sidescan-sonar imaging systems with digital capabilities have now been available for approximately 20 years. In this paper we present several of the various digital image processing techniques developed by the U.S. Geological Survey (USGS) and used to apply intensity/radiometric and geometric corrections, as well as enhance and digitally mosaic, sidescan-sonar...
