Scented guide ropes as a method to enhance brown treesnake (Boiga irregularis) trap capture success on Guam
L.C. Mason, J. A. Savidge, G.H. Rodda, A. A. Yackel Adams
2011, Journal of Herpetology (45) 308-312
Current methods for controlling the invasive Brown Treesnake (Boiga irregularis) on Guam include a modified minnow trap with a live mouse lure. We investigated the effects on capture success of augmenting these traps with scented guide ropes leading to trap entrances. Initial screening of scent preferences was based on...
A working environment for digital planetary data processing and mapping using ISIS and GRASS GIS
A. Frigeri, T. Hare, M. Neteler, A. Coradini, C. Federico, R. Orosei
2011, Conference Paper, Planetary and Space Science
Since the beginning of planetary exploration, mapping has been fundamental to summarize observations returned by scientific missions. Sensor-based mapping has been used to highlight specific features from the planetary surfaces by means of processing. Interpretative mapping makes use of instrumental observations to produce thematic maps that summarize observations of actual...
Sewers as a source and sink of chlorinated-solvent groundwater contamination, Marine Corps Recruit Depot, Parris Island, South Carolina
D.A. Vroblesky, M.D. Petkewich, M.A. Lowery, J. E. Landmeyer
2011, Ground Water Monitoring and Remediation (31) 63-69
Groundwater contamination by tetrachloroethene and its dechlorination products is present in two partially intermingled plumes in the surficial aquifer near a former dry‐cleaning facility at Site 45, Marine Corps Recruit Depot, Parris Island, South Carolina. The northern plume originates from the vicinity of former above‐ground storage tanks. Free‐phase tetrachloroethene from...
A multi-agency nutrient dataset used to estimate loads, improve monitoring design, and calibrate regional nutrient SPARROW models
D. A. Saad, G. E. Schwarz, Dale M. Robertson, N.L. Booth
2011, Journal of the American Water Resources Association (47) 933-949
Stream‐loading information was compiled from federal, state, and local agencies, and selected universities as part of an effort to develop regional SPAtially Referenced Regressions On Watershed attributes (SPARROW) models to help describe the distribution, sources, and transport of nutrients in streams throughout much of the United States. After screening, 2,739...
Adaptive management for a turbulent future
Craig R. Allen, J.J. Fontaine, K.L. Pope, A.S. Garmestani
2011, Journal of Environmental Management (92) 1339-1345
The challenges that face humanity today differ from the past because as the scale of human influence has increased, our biggest challenges have become global in nature, and formerly local problems that could be addressed by shifting populations or switching resources, now aggregate (i.e., "scale up") limiting potential management options....
Factors Controlling Pre-Columbian and Early Historic Maize Productivity in the American Southwest, Part 2: The Chaco Halo, Mesa Verde, Pajarito Plateau/Bandelier, and Zuni Archaeological Regions
L. V. Benson
2011, Journal of Archaeological Method and Theory (18) 61-109
Chemical and nutrient analyses of 471 soil samples from 161 sites within four archaeological regions (Pajarito Plateau/Bandelier, Zuni, Mesa Verde, and the Chaco Halo) were combined with historical climate data in order to evaluate the agricultural productivity of each region. In addition, maize productivity and field-life calculations were performed using...
U.S. Department of Energy's site screening, site selection, and initial characterization for storage of CO2 in deep geological formations
T.D. Rodosta, J.T. Litynski, S.I. Plasynski, S. Hickman, S. Frailey, L. Myer
2011, Conference Paper, Energy Procedia
The U.S. Department of Energy (DOE) is the lead Federal agency for the development and deployment of carbon sequestration technologies. As part of its mission to facilitate technology transfer and develop guidelines from lessons learned, DOE is developing a series of best practice manuals (BPMs) for carbon capture and storage...
Equilibrium shoreline response of a high wave energy beach
M.L. Yates, R.T. Guza, W. C. O’Reilly, J.E. Hansen, P.L. Barnard
2011, Journal of Geophysical Research C: Oceans (116)
Four years of beach elevation surveys at Ocean Beach, San Francisco, California, are used to extend an existing equilibrium shoreline change model, previously calibrated with fine sand and moderate energy waves, to medium sand and higher-energy waves. The shoreline, characterized as the cross-shore location of the mean high water contour,...
USGS science in the gulf oil spill: Novel science applications in a crisis
M. McNutt
2011, Sea Technology (52) 13-14
Marcia McNutt reflects on the role of the US Geological Survey (USGS) team following the Deepwater Horizon oil spill. Secretary Salazar asked Marcia McNutt to lead the Flow Rate Technical Group, a team charged by National Incident Commander Adm. Thad Allen with improving estimates of the oil discharge rate from...
Behavioral response of manatees to variations in environmental sound levels
Jennifer L. Miksis-Olds, Tyler Wagner
2011, Marine Mammal Science (27) 130-148
Florida manatees (Trichechus manatus latirostris) inhabit coastal regions because they feed on the aquatic vegetation that grows in shallow waters, which are the same areas where human activities are greatest. Noise produced from anthropogenic and natural sources has the potential to affect these animals by eliciting responses ranging from mild...
Field flume reveals aquatic vegetation's role in sediment and particulate phosphorus transport in a shallow aquatic ecosystem
J. W. Harvey, G.B. Noe, L. G. Larsen, D.J. Nowacki, L.E. McPhillips
2011, Geomorphology (126) 297-313
Flow interactions with aquatic vegetation and effects on sediment transport and nutrient redistribution are uncertain in shallow aquatic ecosystems. Here we quantified sediment transport in the Everglades by progressively increasing flow velocity in a field flume constructed around undisturbed bed sediment and emergent macrophytes. Suspended sediment < 100 μm was...
An index of reservoir habitat impairment
L.E. Miranda, K.M. Hunt
2011, Environmental Monitoring and Assessment (172) 225-234
Fish habitat impairment resulting from natural and anthropogenic watershed and in-lake processes has in many cases reduced the ability of reservoirs to sustain native fish assemblages and fisheries quality. Rehabilitation of impaired reservoirs is hindered by the lack of a method suitable for scoring impairment status. To address this limitation,...
Flow structures and sandbar dynamics in a canyon river during a controlled flood, Colorado River, Arizona
Scott Wright, M. Kaplinski
2011, Journal of Geophysical Research F: Earth Surface (116)
In canyon rivers, debris fan constrictions create rapids and downstream pools characterized by secondary flow structures that are closely linked to channel morphology. In this paper we describe detailed measurements of the three‐dimensional flow structure and sandbar dynamics of two pools along the Colorado River in the Grand Canyon during...
Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells
J. D. Ayotte, Z. Szabo, M. J. Focazio, S. M. Eberts
2011, Applied Geochemistry (26) 747-762
The effects of human-induced alteration of groundwater flow patterns on concentrations of naturally-occurring trace elements were examined in five hydrologically distinct aquifer systems in the USA. Although naturally occurring, these trace elements can exceed concentrations that are considered harmful to human health. The results show that pumping-induced hydraulic gradient changes...
Drought effect on selection of conservation reserve program grasslands by white-tailed deer on the Northern Great Plains
T.W. Grovenburg, C.N. Jacques, R. W. Klaver, J.A. Jenks
2011, American Midland Naturalist (166) 147-162
Limited information exists regarding summer resource selection of white-tailed deer (Odocoileus virginianus) in grassland regions of the Northern Great Plains. During summers 2005-2006, we analyzed habitat selection of adult female white-tailed deer in north-central South Dakota. We collected 1905 summer locations and used 21 and 30 home ranges during 2005...
What's new in well logging and formation evaluation
S. Prensky
2011, World Oil (232) 85-95
A number of significant new developments is emerging in well logging and formation evaluation. Some of the new developments include an ultrasonic wireline imager, an electromagnetic free-point indicator, wired and fiber-optic coiled tubing systems, and extreme-temperature logging-while-drilling (LWD) tools. The continued consolidation of logging and petrophysical service providers in 2010...
Characteristics, distribution, origin, and significance of opaline silica observed by the Spirit rover in Gusev crater, Mars
S. W. Ruff, J.D. Farmer, W. M. Calvin, Kenneth E. Herkenhoff, J. R. Johnson, R.V. Morris, M.S. Rice, R. E. Arvidson, J.F. Bell III, P. R. Christensen, S. W. Squyres
2011, Journal of Geophysical Research E: Planets (116)
The presence of outcrops and soil (regolith) rich in opaline silica (∼65–92 wt % SiO2) in association with volcanic materials adjacent to the “Home Plate” feature in Gusev crater is evidence for hydrothermal conditions. The Spirit rover has supplied a diverse set of observations that are used here to better...
Adaptive management in the U.S. National Wildlife Refuge System: Science-management partnerships for conservation delivery
C. T. Moore, E. V. Lonsdorf, M. G. Knutson, H. P. Laskowski, S. K. Lor
2011, Journal of Environmental Management (92) 1395-1402
Adaptive management is an approach to recurrent decision making in which uncertainty about the decision is reduced over time through comparison of outcomes predicted by competing models against observed values of those outcomes. The National Wildlife Refuge System (NWRS) of the...
Probabilistic fault displacement hazards for the southern san andreas fault using scenarios and empirical slips
R. Chen, M.D. Petersen
2011, Earthquake Spectra (27) 293-313
We apply a probabilistic method to develop fault displacement hazard maps and profiles for the southern San Andreas Fault. Two slip models are applied: (1) scenario slip, defined by the ShakeOut rupture model, and (2) empirical slip, calculated using regression equations relating global slip to earthquake magnitude and distance along...
Viral replication in excised fin tissues (VREFT) corresponds with prior exposure of Pacific herring, Clupea pallasii (Valenciennes), to viral haemorrhagic septicaemia virus (VHSV)
C.A. Grady, J.L. Gregg, R.M. Wade, J. R. Winton, P.K. Hershberger
2011, Journal of Fish Diseases (34) 3-12
Procedures for a viral replication in excised fin tissue (VREFT) assay were adapted to Pacific herring, Clupea pallasii, and optimized both to reduce processing time and to provide the greatest resolution between na??ve herring and those previously exposed to viral haemorrhagic septicaemia virus (VHSV), Genogroup IVa. The optimized procedures included...
Managed flood effects on beaver pond habitat in a desert riverine ecosystem, bill williams river, Arizona USA
D.C. Andersen, P.B. Shafroth, C.M. Pritekel, M. W. O’Neill
2011, Wetlands (31) 195-206
The ecological effects of beaver in warm-desert streams are poorly documented, but potentially significant. For example, stream water and sediment budgets may be affected by increased evaporative losses and sediment retention in beaver ponds. We measured physical attributes of beaver pond and adjacent lotic habitats on a regulated Sonoran Desert...
Rangewide phylogeography and landscape genetics of the Western U.S. endemic frog Rana boylii (Ranidae): Implications for the conservation of frogs and rivers
A.J. Lind, P.Q. Spinks, G. M. Fellers, H.B. Shaffer
2011, Conservation Genetics (12) 269-284
Genetic data are increasingly being used in conservation planning for declining species. We sampled both the ecological and distributional limits of the foothill yellow-legged frog, Rana boylii to characterize mitochondrial DNA (mtDNA) variation in this declining, riverine amphibian. We evaluated 1525 base pairs (bp) of cytochrome b and ND2 fragments...
Genetic consequences of trumpeter swan (Cygnus buccinator) reintroductions
F.A. Ransler, T.W. Quinn, S.J. Oyler-McCance
2011, Conservation Genetics (12) 257-268
Relocation programs are often initiated to restore threatened species to previously occupied portions of their range. A primary challenge of restoration efforts is to translocate individuals in a way that prevents loss of genetic diversity and decreases differentiation relative to source populations-a challenge that becomes increasingly difficult when remnant populations...
Field survey of the March 28, 2005 Nias-Simeulue earthquake and Tsunami
J.C. Borrero, B. McAdoo, B. Jaffe, L. Dengler, G. Gelfenbaum, B. Higman, R. Hidayat, A. Moore, W. Kongko, Lukijanto, R. Peters, G. Prasetya, V. Titov, E. Yulianto
2011, Pure and Applied Geophysics (168) 1075-1088
On the evening of March 28, 2005 at 11:09 p.m. local time (16:09 UTC), a large earthquake occurred offshore of West Sumatra, Indonesia. With a moment magnitude (Mw) of 8.6, the event caused substantial shaking damage and land level changes between Simeulue Island in the north and the Batu Islands...
A Bayesian network to predict coastal vulnerability to sea level rise
B.T. Gutierrez, N.G. Plant, E.R. Thieler
2011, Journal of Geophysical Research F: Earth Surface (116)
Sea level rise during the 21st century will have a wide range of effects on coastal environments, human development, and infrastructure in coastal areas. The broad range of complex factors influencing coastal systems contributes to large uncertainties in predicting long-term sea level rise impacts. Here we explore and demonstrate the...
