Thirty-one years of debris-flow observation and monitoring near La Honda, California, USA
G. F. Wieczorek, R. C. Wilson, S. D. Ellen, M.E. Reid, A. S. Jayko
2007, Conference Paper, International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings
From 1975 until 2006,18 intense storms triggered at least 248 debris flows within 10 km2 northwest of the town of La Honda within the Santa Cruz Mountains, California. In addition to mapping debris flows and other types of landslides, studies included soil sampling and geologic mapping, piezometric and tensiometer monitoring,...
Demographic differences of black-capped vireos in 2 habitat types in central Texas
L.A. Noa, D.H. Hirth, T.M. Donovan, D. Cimprich
2007, Journal of Wildlife Management (71) 1042-1049
To understand the effects of habitat selection, we analyzed differences in abundance, age structure, and nesting success of black-capped vireos (Vireo atricapilla) in 2 early successional habitat types found on Fort Hood, a 87,890-ha Military Reservation in central Texas, USA. These habitats were 1) large areas of continuously shrubby vegetation...
Barrier island vulnerability to breaching: a case study on Dauphin Island, Alabama
Mark Hansen, Asbury H. Sallenger Jr.
2007, Conference Paper, Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes
Breaching of barrier islands can adversely impact society by severing infrastructure, destroying private properties, and altering water quality in back bays and estuaries. This study provides a scheme that assesses the relative vulnerability of a barrier island to breach during storms. Dauphin Island, Alabama was selected for this study because...
Infection by a black spot-causing species of Uvulifer and associated opercular alterations in fishes from a high-desert stream in Wyoming
M.C. Quist, M.R. Bower, W.A. Hubert
2007, Diseases of Aquatic Organisms (78) 129-136
Black spot is a common disease syndrome of freshwater fishes. This study provides information on the rank of density of the black spot agent and opercular bone alterations associated with at least one digenean, Uvulifer sp., infecting native and non-native catostomids and cyprinids of the Upper Colorado River Basin. We...
Velafrons coahuilensis, a new labeosaurine haddrosaurid (Dinosauria: Ornithopoda) from the Late Campanian Cerro del Pueblo formation, Coahuila, Mexico
Terry A. Gates, Scott D. Sampson, Carlos R. Delgado de Jesus, Lindsay E. Zanno, David Eberth, Rene Hernandez-Rivera, Martha C. Aguillon-Martinez, James I. Kirkland
2007, Journal of Vertebrate Paleontology (27) 917-930
A new lambeosaurine hadrosaurid, Velafrons coahuilensis, is described as the first lambeosaurine from the Cerro del Pueblo Formation of Coahuila, Mexico, and the first lambeosaurine genus to be named from North America in more than 70 years. Although the holotype specimen is a juvenile individual—as evidenced by its incomplete crest development...
Paleomagnetic and mineral magnetic constraints on Zn-Pb ore genesis in the Pend Oreille Mine, Metaline district, Washington, USA
S.J. Pannalal, David T. A. Symons, D. L. Leach
2007, Canadian Journal of Earth Sciences (44) 1661-1673
Zinc-lead mineralization in the Metaline mining district of northeastern Washington, USA, is hosted by the Cambrian Metaline Formation and is classified into Yellowhead-type (YO) and Josephine-type (JO) ore based on texture and mineralogy. Paleomagnetic results are reported for four Cambrian Metaline Formation sites, one Ordovician Ledbetter slate site, 12 YO...
Chemistry of water collected from an unventilated drift, Yucca Mountain, Nevada
B.D. Marshall, T.A. Oliver, Z. E. Peterman
2007, Conference Paper, Materials Research Society Symposium Proceedings
Water samples (referred to as puddle water samples) were collected from the surfaces of a conveyor belt and plastic sheeting in the unventilated portion of the Enhanced Characterization of the Repository Block (ECRB) Cross Drift in 2003 and 2005 at Yucca Mountain, Nevada. The chemistry of these puddle water samples...
Cloud water in windward and leeward mountain forests: The stable isotope signature of orographic cloud water
M. A. Scholl, T. W. Giambelluca, S. B. Gingerich, M.A. Nullet, L.L. Loope
2007, Water Resources Research (43)
Cloud water can be a significant hydrologic input to mountain forests. Because it is a precipitation source that is vulnerable to climate change, it is important to quantify amounts of cloud water input at watershed and regional scales. During this study, cloud water and rain samples were collected monthly for...
The NatCarb geoportal: Linking distributed data from the Carbon Sequestration Regional Partnerships
T.R. Carr, P.M. Rich, J.D. Bartley
2007, Journal of Map & Geography Libraries (4) 131-147
The Department of Energy (DOE) Carbon Sequestration Regional Partnerships are generating the data for a "carbon atlas" of key geospatial data (carbon sources, potential sinks, etc.) required for rapid implementation of carbon sequestration on a broad scale. The NATional CARBon Sequestration Database and Geographic Information System (NatCarb) provides Web-based, nation-wide...
Anthropogenic impacts on American eel demographics in Hudson River tributaries, New York
L.S. Machut, K.E. Limburg, R.E. Schmidt, D. Dittman
2007, Transactions of the American Fisheries Society (136) 1699-1713
Populations of American eel Anguilla rostrata along the eastern coast of North America have declined drastically for largely unknown reasons. We examined the population dynamics of American eels in six tributaries of the Hudson River, New York, to quantify their distribution and the impacts of anthropogenic stressors. With up to...
Characterization and expression profile of the ovarian cytochrome P-450 aromatase (cyp19A1) gene during thermolabile sex determination in Pejerrey, Odontesthes bonariensis
M. Karube, J.I. Fernandino, P. Strobl-Mazzulla, C.A. Strussmann, G. Yoshizaki, G.M. Somoza, R. Patino
2007, Journal of Experimental Zoology Part A: Ecological Genetics and Physiology (307) 625-636
Cytochrome P450 aromatase (cyp19) is an enzyme that catalyzes the conversion of androgens to estrogens and may play a role in temperature- dependent sex determination (TSD) of reptiles, amphibians, and fishes. In this study, the ovarian P450 aromatase form (cyp19A1) of pejerrey Odontesthes bonariensis, a teleost with marked TSD, was...
Hydrology and subsurface transport of oil-field brine at the U.S. Geological Survey OSPER site "A", Osage County, Oklahoma
William N. Herkelrath, Yousif K. Kharaka, James J. Thordsen, Marvin M. Abbott
2007, Applied Geochemistry (22) 2155-2163
Spillage and improper disposal of saline produced water from oil wells has caused environmental damage at thousands of sites in the United States. In order to improve understanding of the fate and transport of contaminants at these sites, the U.S. Geological...
Population growth of Yellowstone grizzly bears: Uncertainty and future monitoring
R.B. Harris, Gary C. White, C.C. Schwartz, M.A. Haroldson
2007, Ursus (18) 168-178
Grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem of the US Rocky Mountains have recently increased in numbers, but remain vulnerable due to isolation from other populations and predicted reductions in favored food resources. Harris et al. (2006) projected how this population might fare in the future under alternative...
Palynological correlation of Atokan and lower desmoinesian (Pennsylvanian) strata between the Illinois basin and the Forest City basin in Eastern Kansas
R.A. Peppers, L. L. Brady
2007, Current Research in Earth Sciences (253)
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin an the Forest City basin in eastern Kansas. Spore data from previous studies of coals in the Illinois basin and other coal basins are compared with data from spore assemblages in coal and carbonaceous shale bands...
Faunal re-evaluation of Mid-Pliocene conditions in the western equatorial Pacific
H. Dowsett
2007, Micropaleontology (53) 447-456
Mid-Pliocene low-latitude Pacific faunal (planktic foraminifer) sea surface temperature (SST) estimates are normally based upon the Modern Analog Technique (MAT). In the Eastern equatorial Pacific (EEP), where upwelling of cool water predominates, MAT can be used to discern both cooling and warming in Neogene records. SST today is ???30??C in...
Effects of highway construction on sediment and benthic macroinvertebrates in two tributaries of the Lost River, West Virginia
Lara B. Hedrick, S.A. Welsh, James T. Anderson
2007, Journal of Freshwater Ecology (22) 561-569
During a three-year study of two tributaries being crossed by a four-lane highway under construction in the eastern panhandle of West Virginia, we found little difference in the amount of fine sediment collected at upstream and downstream sites. The downstream site on one tributary collected significantly greater amounts of sediment...
Diets of swift foxes (Vulpes velox) in continuous and fragmented prairie in Northwestern Texas
J.F. Kamler, W.B. Ballard, M.C. Wallace, P. S. Gipson
2007, Southwestern Naturalist (52) 504-510
Distribution of the swift fox (Vulpes velox) has declined dramatically since the 1800s, and suggested causes of this decline are habitat fragmentation and transformation due to agricultural expansion. However, impacts of fragmentation and human-altered habitats on swift foxes still are not well understood. To better understand what effects these factors...
Home ranges and habitat use of sloth bears Melursus ursinus inornatus in Wasgomuwa National Park, Sri Lanka
S. Ratnayeke, F.T. Van Manen, U.K.G.K. Padmalal
2007, Wildlife Biology (13) 272-284
We studied home ranges and habitat selection of 10 adult sloth bears Melursus ursinus inornatus at Wasgomuwa National Park, Sri Lanka during 2002-2003. Very little is known about the ecology and behaviour of M. u. inornatus, which is a subspecies found in Sri Lanka. Our study was undertaken to assess...
Daily foraging patterns of adult Double-crested Cormorants during the breeding season
J.T.H. Coleman, M. E. Richmond
2007, Waterbirds (30) 189-198
We recorded the daily presence of Double-crested Cormorants (Phalacrocorax auritus) at the nesting island on Oneida Lake, New York, by monitoring the activities of 15 radio-tagged adults from July through September, 2000, using an automated data-logging receiver. A total of 24,464 acceptable detections was obtained for adult cormorants actively attempting...
Homogeneity of the geochemical reference material BRP-1 (paraná basin basalt) and assessment of minimum mass
Aloisio J. B. Cotta, Jacinta Enzweiler, Stephen A. Wilson, Carlos A. Perez, Antonio J. R. Nardy, Joao H. Larizzatti
2007, Geostandards and Geoanalytical Research (31) 379-393
Reference materials (RM) are required for quantitative analyses and their successful use is associated with the degree of homogeneity, and the traceability and confidence limits of the values established by characterisation. During the production of a RM, the chemical characterisation can only commence after it has been demonstrated that the...
Centimeter-scale characterization of biogeochemical gradients at a wetland-aquifer interface using capillary electrophoresis
S. Baez-Cazull, J.T. McGuire, Isabelle M. Cozzarelli, A. Raymond, L. Welsh
2007, Applied Geochemistry (22) 2664-2683
Steep biogeochemical gradients were measured at mixing interfaces in a wetland-aquifer system impacted by landfill leachate in Norman, Oklahoma. The system lies within a reworked alluvial plain and is characterized by layered low hydraulic conductivity wetland sediments interbedded with sandy aquifer material. Using cm-scale passive diffusion samplers, "peepers", water samples...
Tissue contaminants and associated transcriptional response in trout liver from high elevation lakes of Washington
P.W. Moran, N. Aluru, R. W. Black, M.M. Vijayan
2007, Environmental Science & Technology (41) 6591-6597
The consistent cold temperatures and large amount of precipitation in the Olympic and Cascade ranges of Washington State are thought to enhance atmospheric deposition of contaminants. However, little is known about contaminant levels in organisms residing in these remote high elevation lakes. We measured total mercury and 28 organochlorine compounds...
Trends in the occurrence of MTBE in drinking water in the Northeast United States
M.J. Moran
2007, Conference Paper, Ground Water Management - Petroleum Hydrocarbons and Organic Chemicals in Ground Water: Prevention, Assessment, and Remediation Conf
Public water systems in Connecticut, Maine, Maryland, New Hampshire, New Jersey, and Rhode Island sampled treated drinking water from 1993-2006 and analyzed the samples for MTBE. The US Geological Survey examined trends in the occurrence of MTBE in drinking water derived from ground water in these States for two near-decadal...
Online catalog of world-wide test sites for the post-launch characterization and calibration of optical sensors
G. Chander, J.B. Christopherson, G. L. Stensaas, P.M. Teillet
2007, Conference Paper, International Astronautical Federation - 58th International Astronautical Congress 2007
In an era when the number of Earth-observing satellites is rapidly growing and measurements from these sensors are used to answer increasingly urgent global issues, it is imperative that scientists and decision-makers rely on the accuracy of Earth-observing data products. The characterization and calibration of these sensors are vital to...
Monitoring and modeling ice-rock avalanches from ice-capped volcanoes: A case study of frequent large avalanches on Iliamna Volcano, Alaska
C. Huggel, J. Caplan-Auerbach, C. F. Waythomas, R.L. Wessels
2007, Journal of Volcanology and Geothermal Research (168) 114-136
Iliamna is an andesitic stratovolcano of the Aleutian arc with regular gas and steam emissions and mantled by several large glaciers. Iliamna Volcano exhibits an unusual combination of frequent and large ice-rock avalanches in the order of 1 ?? 106??m3 to 3 ?? 107??m3 with recent return periods of 2-4??years....
