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Page 1798, results 44926 - 44950

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Isolation of Bartonella capreoli from elk
Y. Bai, Paul C. Cross, L. Malania, M. Kosoy
2011, Veterinary Microbiology (148) 329-332
The aim of the present study was to investigate the presence of Bartonella infections in elk populations. We report the isolation of four Bartonella strains from 55 elk blood samples. Sequencing analysis demonstrated that all four strains belong to Bartonella capreoli, a bacterium that was originally described in the wild...
Surface complexation modeling for predicting solid phase arsenic concentrations in the sediments of the Mississippi River Valley alluvial aquifer, Arkansas, USA
M.S.U. Sharif, R.K. Davis, K.F. Steele, B. Kim, P.D. Hays, T.M. Kresse, J.A. Fazio
2011, Applied Geochemistry (26) 496-504
The potential health impact of As in drinking water supply systems in the Mississippi River Valley alluvial aquifer in the state of Arkansas, USA is significant. In this context it is important to understand the occurrence, distribution and mobilization of As in the Mississippi River Valley alluvial aquifer. Application of...
Late Pliocene and Quaternary Eurasian locust infestations in the Canary Archipelago
J. Meco, D.R. Muhs, M. Fontugne, A.J. Ramos, A. Lomoschitz, D. Patterson
2011, Lethaia (44) 440-454
The Canary Archipelago has long been a sensitive location to record climate changes of the past. Interbedded with its basalt lavas are marine deposits from the principal Pleistocene interglacials, as well as aeolian sands with intercalated palaeosols. The palaeosols contain African dust and innumerable relict egg pods of a temperate‐region...
Microbial consortia of gorgonian corals from the Aleutian islands
Michael A. Gray, Robert P. Stone, Molly R. McLaughlin, Christina A. Kellogg
2011, FEMS Microbiology Ecology (76) 109-120
Gorgonians make up the majority of corals in the Aleutian archipelago and provide critical fish habitat in areas of economically important fisheries. The microbial ecology of the deep-sea gorgonian corals Paragorgea arborea, Plumarella superba, and Cryogorgia koolsae was examined with culture-based and 16S rRNA gene-based techniques. Six coral colonies (two per species) were...
Road-testing the outreach best practices manual: Applicability for implementation of the development phase projects by the regional carbon sequestration partnerships
D. Daly, J. Bradbury, G. Garrett, S. Greenberg, R. Myhre, T. Peterson, L. Tollefson, S. Wade, N. Sacuta
2011, Energy Procedia (4) 6256-6262
Geologic carbon dioxide (CO2) storage verification tests by the U.S. Department of Energy’s (DOE’s) seven Regional Carbon Sequestration Partnerships (RCSPs) provided the experience base for the Public Outreach and Education for Carbon Storage Projects, a best practices manual, published in December 2009. This paper summarizes these outreach best practices; discusses...
College and university environmental programs as a policy problem (Part 2): Strategies for improvement
S.G. Clark, M.B. Rutherford, M.R. Auer, D.N. Cherney, R.L. Wallace, David J. Mattson, D. A. Clark, L. Foote, N. Krogman, P. Wilshusen, T. Steelman
2011, Environmental Management (47) 716-726
Environmental studies and environmental sciences programs in American and Canadian colleges and universities seek to ameliorate environmental problems through empirical enquiry and analytic judgment. In a companion article (Part 1) we describe the environmental program movement (EPM) and discuss factors that have hindered its performance. Here, we complete our analysis...
Retesting of liquefaction and nonliquefaction case histories from the 1976 Tangshan earthquake
R.E.S. Moss, R. E. Kayen, L.-Y. Tong, S.-Y. Liu, G.-J. Cai, J. Wu
2011, Journal of Geotechnical and Geoenvironmental Engineering (137) 334-343
A field investigation was performed to retest liquefaction and nonliquefaction sites from the 1976 Tangshan earthquake in China. These sites were carefully investigated in 1978 and 1979 by using standard penetration test (SPT) and cone penetration test (CPT) equipment; however, the CPT measurements are obsolete because of the now nonstandard...
Electrical properties of polycrystalline methane hydrate
W. L. Du Frane, L.A. Stern, K.A. Weitemeyer, S. Constable, J.C. Pinkston, J.J. Roberts
2011, Geophysical Research Letters (38)
Electromagnetic (EM) remote-sensing techniques are demonstrated to be sensitive to gas hydrate concentration and distribution and complement other resource assessment techniques, particularly seismic methods. To fully utilize EM results requires knowledge of the electrical properties of individual phases and mixing relations, yet little is known about the electrical properties of...
A perspective on nonstationarity and water management
R.M. Hirsch
2011, Journal of the American Water Resources Association (47) 436-446
This essay offers some perspectives on climate-related nonstationarity and water resources. Hydrologists must not lose sight of the many sources of nonstationarity, recognizing that many of them may be of much greater magnitude than those that may arise from climate change. It is paradoxical that statistical and deterministic approaches give...
Electronic tagging of green sturgeon reveals population structure and movement among estuaries
S.T. Lindley, D.L. Erickson, M.L. Moser, G. Williams, O.P. Langness, B.W. McCovey Jr., M. Belchik, D. Vogel, W. Pinnix, J.T. Kelly, J.C. Heublein, A.P. Klimley
2011, Transactions of the American Fisheries Society (140) 108-122
Green sturgeon Acipenser medirostris spend much of their lives outside of their natal rivers, but the details of their migrations and habitat use are poorly known, which limits our understanding of how this species might be affected by human activities and habitat degradation. We tagged 355 green sturgeon with acoustic transmitters on...
Stomach emptiness in fishes: Sources of variation and study design implications
M.R. Vinson, T.R. Angradi
2011, Reviews in Fisheries Science (19) 63-73
This study summarizes fish stomach content data from 369,000 fish from 402 species in 1,096 collections and reports on the percentage of individuals with empty stomachs. The mean percentage of individuals with empty stomachs among all species, locations, habitats, seasons, regions, and collection methods was 26.4%. Mean percentage of individuals...
Mid Holocene lake level and shoreline behavior during the Nipissing phase of the upper Great Lakes at Alpena, Michigan, USA
T.A. Thompson, K. Lepper, A.L. Endres, J.W. Johnston, S.J. Baedke, E.P. Argyilan, R.K. Booth, D.A. Wilcox
2011, Journal of Great Lakes Research (37) 567-576
The Nipissing phase was the last pre-modern high-water stage of the upper Great Lakes. Represented as either a one- or two-peak highstand, the Nipissing occurred following a long-term lake-level rise. This transgression was primarily an erosional event with only the final stage of the transgression preserved as barriers, spits, and strandplains...
Significant genetic differentiation between native and introduced silver carp (Hypophthalmichthys molitrix) inferred from mtDNA analysis
S.-F. Li, J.-W. Xu, Q.-L. Yang, C.H. Wang, D.C. Chapman, G. Lu
2011, Environmental Biology of Fishes (92) 503-511
Silver carp Hypophthalmichthys molitrix (Cyprinidae) is native to China and has been introduced to over 80 countries. The extent of genetic diversity in introduced silver carp and the genetic divergence between introduced and native populations remain largely unknown. In this study, 241 silver carp sampled from three major native rivers...
Meeting CCS communication challenges head-on: Integrating communications, planning, risk assessment, and project management
S. Greenberg, L. Gauvreau, K. Hnottavange-Telleen, R. Finley, S. Marsteller
2011, Conference Paper, Energy Procedia
The Midwest Geological Sequestration Consortium, Schlumberger Carbon Services, and Archer Daniels Midland has implemented a comprehensive communications plan at the Illinois Basin–Decatur Project (IBDP), a one million metric tonne Carbon Capture and Storage project in Decatur, IL, USA funded by the U.S. Department of Energy’s National Energy Technology Laboratory. The...
Probing magnetic bottom and crustal temperature variations along the Red Sea margin of Egypt
D. Ravat, A. Salem, A.M.S. Abdelaziz, E. Elawadi, P. Morgan
2011, Tectonophysics (510) 337-344
Over 50 magnetic bottom depths derived from spectra of magnetic anomalies in Eastern Egypt along the Red Sea margin show variable magnetic bottoms ranging from 10 to 34 km. The deep magnetic bottoms correspond more closely to the Moho depth in the region, and not the depth of 580 °C, which lies...
Combined effects of tectonic and landslide-generated Tsunami Runup at Seward, Alaska during the Mw 9.2 1964 earthquake
E. Suleimani, D.J. Nicolsky, Peter J. Haeussler, R. Hansen
2011, Pure and Applied Geophysics (168) 1053-1074
We apply a recently developed and validated numerical model of tsunami propagation and runup to study the inundation of Resurrection Bay and the town of Seward by the 1964 Alaska tsunami. Seward was hit by both tectonic and landslide-generated tsunami waves during the MW"><span...
Human dignity in concept and practice
D.J. Mattson, S.G. Clark
2011, Policy Sciences (44) 303-319
Dignity seems to be something that virtually all people want. It is a seminal expression of the human experience that gains authority through the convergent demands of people worldwide. Even so, the human dignity concept is in unhelpful disarray. Dignity is variously viewed as an antecedent, a consequence, a value,...
Trophic ecology and gill raker morphology of seven catostomid species in Iowa rivers
J.R. Spiegel, M.C. Quist, J.E. Morris
2011, Journal of Applied Ichthyology (27) 1159-1164
Understanding the trophic ecology of closely‐related species is important for providing insight on inter‐specific competition and resource partitioning. Although catostomids often dominate fish assemblages in lotic systems, little research has been conducted on their ecology. This study was developed to provide information on the trophic ecology of catostomids in several...
Specifying initial stress for dynamic heterogeneous earthquake source models
D.J. Andrews, M. Barall
2011, Bulletin of the Seismological Society of America (101) 2408-2417
Dynamic rupture calculations using heterogeneous stress drop that is random and self-similar with a power-law spatial spectrum have great promise of producing realistic ground-motion predictions. We present procedures to specify initial stress for random events with a target rupture length and target magnitude. The stress function is modified in the...
Seasonal distribution of Gulf of Mexico sturgeon in the pensacola bay system, Florida
M.S. Duncan, B.M. Wrege, Frank M. Parauka, J. Jeffery Isely
2011, Journal of Applied Ichthyology (27) 316-321
Temporal and spatial distributions of Gulf of Mexico (Gulf) sturgeon Acipenser oxyrinchus desotoi were assessed in the Pensacola bay system, Florida, using stationary ultrasonic telemetry. Fifty‐eight Gulf sturgeon were tagged within the Escambia (n = 26), Yellow (n = 8), Blackwater (n = 12) and Choctawhatchee Rivers (n = 12) in June, July, September and October, 2005. Fifty‐four Gulf sturgeon...
MercNet: A national monitoring network to assess responses to changing mercury emissions in the United States
D. Schmeltz, D.C. Evers, C. T. Driscoll, R. Artz, M. Cohen, D. Gay, R. Haeuber, D. P. Krabbenhoft, R. Mason, K. Morris, J.G. Wiener
2011, Ecotoxicology (20) 1713-1725
A partnership of federal and state agencies, tribes, industry, and scientists from academic research and environmental organizations is establishing a national, policy-relevant mercury monitoring network, called MercNet, to address key questions concerning changes in anthropogenic mercury emissions and deposition, associated linkages to ecosystem effects, and recovery from mercury contamination. This...
Fire frequency, area burned, and severity: A quantitative approach to defining a normal fire year
J.A. Lutz, Carl H. Key, C.A. Kolden, J.T. Kane, Jan W. Van Wagtendonk
2011, Fire Ecology (7) 51-65
Fire frequency, area burned, and fire severity are important attributes of a fire regime, but few studies have quantified the interrelationships among them in evaluating a fire year. Although area burned is often used to summarize a fire season, burned area may not be well correlated with either the number...
Formation of cordierite-bearing lavas during anatexis in the lower crust beneath Lipari Island (Aeolian arc, Italy)
Martino C. Di, F. Forni, M.L. Frezzotti, R. Palmeri, J.D. Webster, R. A. Ayuso, F. Lucchi, C.A. Tranne
2011, Contributions to Mineralogy and Petrology (162) 1011-1030
Cordierite-bearing lavas (CBL;~105 ka) erupted from the Mt. S. Angelo volcano at Lipari (Aeolian arc, Italy) are high-K andesites, displaying a range in the geochemical and isotopic compositions that reflect heterogeneity in the source and/or processes. CBL consist of megacrysts of Ca-plagioclase and clinopyroxene, euhedral crystals of cordierite and garnet, microphenocrysts...
Going coastal: Shared evolutionary history between coastal British Columbia and Southeast Alaska wolves (canis lupus)
Byron V. Weckworth, Natalie G. Dawson, Sandra L. Talbot, Melanie J. Flamme, Joseph A. Cook
2011, PLoS ONE (6)
Many coastal species occupying the temperate rainforests of the Pacific Northwest in North America comprise endemic populations genetically and ecologically distinct from interior continental conspecifics. Morphological variation previously identified among wolf populations resulted in recognition of multiple subspecies of wolves in the Pacific Northwest. Recently, separate genetic studies have identified...