Use of habitats by female mallards wintering in Southwestern Louisiana
Paul T. Link, A. D. Afton, R. R. Cox Jr., B.E. Davis
2011, Waterbirds (34) 429-438
Habitat use by wintering Mallards (Anas platyrhychos) on the Gulf Coast Chenier Plain (GCCP) has received little study and quantitative data is needed for management of GCCP waterfowl. Radio-telemetry techniques were used to record habitats used by 135 female Mallards during winters 2004-2005 and 2005-2006 in south-western Louisiana. Habitat use...
Making United States Integrated Ocean Observing System (U.S. IOOS) inclusive of marine biological resources
H. Moustahfid, J. Potemra, P. Goldstein, R. Mendelssohn, A. Desrochers
2011, Conference Paper, OCEANS'11 - MTS/IEEE Kona, Program Book
An important Data Management and Communication (DMAC) goal is to enable a multi-disciplinary view of the ocean environment by facilitating discovery and integration of data from various sources, projects and scientific domains. United States Integrated Ocean Observing System (U.S. IOOS) DMAC functional requirements are based upon guidelines for standardized data...
Exploring geophysical processes influencing U.S. West Coast precipitation and water supply
F.M. Ralph, K. Prather, D. Cayan
2011, Eos, Transactions, American Geophysical Union (92) 352
CalWater Science Workshop; La Jolla, California, 8-10 June 2011 CalWater is a multiyear, multiagency research project with two primary research themes: the effects of changing climate on atmospheric rivers (ARs) and associated extreme events, and the potential role of aerosols in modulating cloud properties and precipitation, especially regarding orographic precipitation...
Exploring the sensitivity of soil carbon dynamics to climate change, fire disturbance and permafrost thaw in a black spruce ecosystem
J. A. O'Donnell, Jennifer W. Harden, A. David McGuire, V.E. Romanovsky
2011, Biogeosciences (8) 1367-1382
In the boreal region, soil organic carbon (OC) dynamics are strongly governed by the interaction between wildfire and permafrost. Using a combination of field measurements, numerical modeling of soil thermal dynamics, and mass-balance modeling of OC dynamics, we tested the sensitivity of soil OC storage to a suite of individual...
New insights of tsunami hazard from the 2011 Tohoku-oki event
K. Goto, C. Chague-Goff, S. Fujino, J. Goff, Bruce Jaffe, Y. Nishimura, Bruce M. Richmond, D. Sugawara, Witold Szczucinski, D.R. Tappin, Robert C. Witter, E. Yulianto
2011, Marine Geology (290) 46-50
We report initial results from our recent field survey documenting the inundation and resultant deposits of the 2011 Tohoku-oki tsunami from Sendai Plain, Japan. The tsunami inundated up to 4.5 km inland but the > 0.5 cm-thick sand deposit extended only 2.8 km (62% of the inundation distance). The deposit however continued as a...
Post-breeding bird responses to canopy tree retention, stand size, and edge in regenerating Appalachian hardwood stands
Molly E. McDermott, Petra B. Wood
2011, Forest Ecology and Management (262) 547-554
Avian use of even-aged timber harvests is likely affected by stand attributes such as size, amount of edge, and retained basal area, all characteristics that can easily be manipulated in timber harvesting plans. However, few studies have examined their effects during the post-breeding period. We studied the impacts of clearcut,...
Gas emissions from failed and actual eruptions from Cook Inlet Volcanoes, Alaska, 1989-2006
C.A. Werner, M.P. Doukas, P.J. Kelly
2011, Bulletin of Volcanology (73) 155-173
Cook Inlet volcanoes that experienced an eruption between 1989 and 2006 had mean gas emission rates that were roughly an order of magnitude higher than at volcanoes where unrest stalled. For the six events studied, mean emission rates for eruptions were ~13,000 t/d CO2 and 5200 t/d SO2, but only...
Mysis diluviana population and cohort dynamics in Lake Ontario before and after the establishment of Dreissena spp., Cercopagis pengoi, and Bythotrephes longimanus
Ora E. Johannsson, Kelly L. Bowen, Kristen T. Holeck, Maureen G. Walsh
2011, Canadian Journal of Fisheries and Aquatic Sciences (68) 795-811
We investigated population responses of Mysis to ecosystem changes induced by invasion of dreissenids and predatory cladocerans, Cercopagis and Bythotrephes. Lake productivity declined as dreissenids invaded the offshore region. Whole-lake mysid biomass was compared before (early 1990s) and after (2002–2007) the invasion period; it declined 40%–45%. Abundance of young mysids...
Agricultural practices and residual corn during spring crane and waterfowl migration in Nebraska
Mark H. Sherfy, Michael J. Anteau, A.A. Bishop
2011, Journal of Wildlife Management (75) 995-1003
Nebraska's Central Platte River Valley (CPRV) is a major spring‐staging area for migratory birds. Over 6 million ducks, geese, and sandhill cranes (Grus canadensis) stage there en route to tundra, boreal forest, and prairie breeding habitats, storing nutrients for migration and reproduction by consuming primarily corn remaining in fields after...
A nuclear localization of the infectious haematopoietic necrosis virus NV protein is necessary for optimal viral growth
M.K. Choi, C. H. Moon, M.S. Ko, U.-H. Lee, W. Cho, S.J. Cha, J.W. Do, G.J. Heo, S.G. Jeong, Y.S. Hahm, A. Harmache, M. Bremont, Gael Kurath, J. W. Park
2011, PLoS ONE (6)
The nonvirion (NV) protein of infectious hematopoietic necrosis virus (IHNV) has been previously reported to be essential for efficient growth and pathogenicity of IHNV. However, little is known about the mechanism by which the NV supports the viral growth. In this study, cellular localization of NV and its role in...
Sources of variability and comparability between salmonid stomach contents and isotopic analyses: study design lessons and recommendations
M.R. Vinson, P. Budy
2011, Canadian Journal of Fisheries and Aquatic Sciences (68) 137-151
We compared sources of variability and cost in paired stomach content and stable isotope samples from three salmonid species collected in September 2001–2005 and describe the relative information provided by each method in terms of measuring diet overlap and food web study design. Based on diet analyses, diet overlap among...
Mechanism of the 1996-97 non-eruptive volcano-tectonic earthquake swarm at Iliamna Volcano, Alaska
Diana Roman, John A. Power
2011, Bulletin of Volcanology (73) 143-153
A significant number of volcano-tectonic (VT) earthquake swarms, some of which are accompanied by ground deformation and/or volcanic gas emissions, do not culminate in an eruption. These swarms are often thought to represent stalled intrusions of magma into the mid- or shallow-level crust. Real-time assessment of the likelihood that a...
Study relationship between inorganic and organic coal analysis with gross calorific value by multiple regression and ANFIS
S.C. Chelgani, B. Hart, W.C. Grady, J.C. Hower
2011, International Journal of Coal Preparation and Utilization (31) 9-19
The relationship between maceral content plus mineral matter and gross calorific value (GCV) for a wide range of West Virginia coal samples (from 6518 to 15330 BTU/lb; 15.16 to 35.66 MJ/kg) has been investigated by multivariable regression and adaptive neuro-fuzzy inference system (ANFIS). The stepwise least square mathematical method comparison between...
Opportunity Mars Rover mission: Overview and selected results from Purgatory ripple to traverses to Endeavour crater
R. E. Arvidson, James W. Ashley, J.F. Bell III, M. Chojnacki, J. Cohen, T.E. Economou, W. H. Farrand, Robin L. Fergason, I. Fleischer, Paul E. Geissler, Ralf Gellert, M.P. Golombek, J.P. Grotzinger, E.A. Guinness, R.M. Haberle, Kenneth E. Herkenhoff, J.A. Herman, K.D. Iagnemma, B.L. Jolliff, J. R. Johnson, G. Klingelhofer, A.H. Knoll, A.T. Knudson, R. Li, S. M. McLennan, D. W. Mittlefehldt, R.V. Morris, T. J. Parker, M.S. Rice, C. Schroder, Laurence A. Soderblom, S. W. Squyres, R.J. Sullivan, M.J. Wolff
2011, Journal of Geophysical Research E: Planets (116)
Opportunity has been traversing the Meridiani plains since 25 January 2004 (sol 1), acquiring numerous observations of the atmosphere, soils, and rocks. This paper provides an overview of key discoveries between sols 511 and 2300, complementing earlier papers covering results from the initial phases of the mission. Key new results...
The USGS geomagnetism program and its role in space weather monitoring
Jeffrey J. Love, Carol A. Finn
2011, Space Weather (9)
Magnetic storms result from the dynamic interaction of the solar wind with the coupled magnetospheric-ionospheric system. Large storms represent a potential hazard for the activities and infrastructure of a modern, technologically based society [Baker et al., 2008]; they can cause the loss of radio communications, reduce the accuracy of global...
No correlation between Anderson Reservoir stage level and underlying Calaveras fault seismicity despite calculated differential stress increases
T. Parsons
2011, Lithosphere (3) 261-264
Concerns have been raised that stresses from reservoir impoundment may trigger damaging earthquakes because rate changes have been associated with reservoir impoundment or stage-level changes globally. Here, the idea is tested blindly using Anderson Reservoir, which lies atop the seismically active Calaveras fault. The only knowledge held by the author...
US geological survey Circum-Arctic Resource Appraisal (CARA): Introduction and summary of organization and methods
Ronald R. Charpentier, Donald L. Gautier
2011, Geological Society Memoir 145-150
The USGS has assessed undiscovered petroleum resources in the Arctic through geological mapping, basin analysis and quantitative assessment. The new map compilation provided the base from which geologists subdivided the Arctic for burial history modelling and quantitative assessment. The CARA was a probabilistic, geologically based study that used existing USGS...
The importance of within-year repeated counts and the influence of scale on long-term monitoring of sage-grouse
B.C. Fedy, Cameron L. Aldridge
2011, Journal of Wildlife Management (75) 1022-1033
Long‐term population monitoring is the cornerstone of animal conservation and management. The accuracy and precision of models developed using monitoring data can be influenced by the protocols guiding data collection. The greater sage‐grouse (Centrocercus urophasianus) is a species of concern that has been monitored over decades, primarily, by counting the...
Patterns of NPP, GPP, respiration, and NEP during boreal forest succession
M. L. Goulden, A.M.S. Mcmillan, G.C. Winston, A.V. Rocha, K.L. Manies, J.W. Harden, B. P. Bond-Lamberty
2011, Global Change Biology (17) 855-871
We combined year‐round eddy covariance with biometry and biomass harvests along a chronosequence of boreal forest stands that were 1, 6, 15, 23, 40, ∼74, and ∼154 years old to understand how ecosystem production and carbon stocks change during recovery from stand‐replacing crown fire. Live biomass (Clive) was low in...
Geology and petroleum potential of the east Barents Sea Basins and Admiralty Arch
T. R. Klett, Janet K. Pitman
2011, Geological Society Memoir 295-310
The US Geological Survey (USGS) recently assessed the potential for undiscovered oil and gas resources of the East Barents Basins and Novaya Zemlya Basins and Admiralty Arch Provinces as part of the USGS Circum-Arctic Resource Appraisal. These two provinces are located NE of Scandinavia and the northwestern Russian Federation, on...
An overview of the petroleum geology of the Arctic
A.M. Spencer, A.F. Embry, Donald L. Gautier, A.V. Stoupakova, K. Sorensen
2011, Geological Society Memoir 1-15
Nine main petroleum provinces containing recoverable resources totalling 61 Bbbl liquids+269 Bbbloe of gas are known in the Arctic. The three best known major provinces are: West Siberia–South Kara, Arctic Alaska and Timan–Pechora. They have been sourced principally from, respectively, Upper Jurassic, Triassic and Devonian marine source rocks and their...
Statistical methods of estimating mining costs
K. R. Long
2011, Conference Paper, SME Annual Meeting and Exhibit and CMA 113th National Western Mining Conference 2011
Until it was defunded in 1995, the U.S. Bureau of Mines maintained a Cost Estimating System (CES) for prefeasibility-type economic evaluations of mineral deposits and estimating costs at producing and non-producing mines. This system had a significant role in mineral resource assessments to estimate costs of developing and operating known...
Palaeotsunamis in the Pacific Islands
J. Goff, C. Chague-Goff, D. Dominey-Howes, B. McAdoo, S. Cronin, Michael M. Bonte-Grapetin M., S. Nichol, M. Horrocks, M. Cisternas, G. Lamarche, B. Pelletier, Bruce E. Jaffe, W. Dudley
2011, Earth-Science Reviews (107) 141-146
The recent 29 September 2009 South Pacific and 27 February 2010 Chilean events are a graphic reminder that the tsunami hazard and risk for the Pacific Ocean region should not be forgotten. Pacific Islands Countries (PICs) generally have short (< 150 years) historic records, which means that to understand their tsunami hazard...
Labile Fe(II) concentrations in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre
G. Sarthou, E. Bucciarelli, F. Chever, S.P. Hansard, M. Gonzalez-Davila, J. M. Santana-Casiano, F. Planchon, S. Speich
2011, Biogeosciences (8) 2461-2479
Labile Fe(II) distributions were investigated in the Sub-Tropical South Atlantic and the Southern Ocean during the BONUS-GoodHope cruise from 34 to 57° S (February–March 2008). Concentrations ranged from below the detection limit (0.009 nM) to values as high as 0.125 nM. In the surface mixed layer, labile Fe(II) concentrations were...
Modeling the spatial-temporal dynamics of net primary production in Yangtze River Basin using IBIS model
Z. Zhang, H. Jiang, J. Liu, Q. Zhu, X. Wei, Z. Jiang, G. Zhou, X. Zhang, J. Han
2011, Conference Paper, Proceedings - 2011 19th international conference on geoinformatics, Geoinformatics 2011
The climate change has significantly affected the carbon cycling in Yangtze River Basin. To better understand the alternation pattern for the relationship between carbon cycling and climate change, the net primary production (NPP) were simulated in the study area from 1956 to 2006 by using the Integrated Biosphere Simulator (IBIS)....
