Immunity to fish rhabdoviruses
Maureen K. Purcell, Kerry J. Laing, James R. Winton
2012, Viruses (4) 140-166
Members of the family Rhabdoviridae are single-stranded RNA viruses and globally important pathogens of wild and cultured fish and thus relatively well studied in their respective hosts or other model systems. Here, we review the protective immune mechanisms that fish mount in response to rhabdovirus infections. Teleost fish possess the...
Isleria, a new genus of antwren (Aves: Passeriformes: Thamnophilidae)
Gustavo A. Bravo, R. Terry Chesser, Robb T. Brumfield
2012, Zootaxa (3195) 61-67
A comprehensive molecular phylogenetic analysis of the family Thamnophilidae indicated that the genus Myrmotherula is not monophyletic. The clade composed of M. guttata and M. hauxwelli is only distantly related to other members of the genus and should be removed from Myrmotherula. The phenotypic distinctiveness of the clade argues against...
Origins of invasive piscivores determined from the strontium isotope ratio (87Sr/86Sr) of otoliths
Brian A. Wolff, Brett M. Johnson, Andre R. Breton, Patrick J. Martinez, Dana L. Winkelman, Bronwyn Gillanders
2012, Canadian Journal of Fisheries and Aquatic Sciences (69) 724-739
We examined strontium isotope ratios (87Sr/86Sr) in fish otoliths to determine the origins of invasive piscivores in the Upper Colorado River Basin (UCRB, western USA). We examined 87Sr/86Sr from fishes in different reservoirs, as well as the temporal stability and interspecies variability of 87Sr/86Sr of fishes within reservoirs, determined if...
Temporal and spatial patterns in wind stress and wind stress curl over the central Southern California Bight
Marlene A. Noble, Kurt J. Rosenberger, Leslie K. Rosenfeld, George L. Robertson
2012, Continental Shelf Research (38) 98-109
In 2001, the U.S. Geological Survey, together with several other federal and municipal agencies, began a series of field programs to determine along and cross-shelf transport patterns over the continental shelves in the central Southern California Bight. As a part of these programs, moorings that monitor winds were deployed off...
Hydrologic, water-quality, and biological characteristics of the North Fork Flathead River, Montana, water years 2007-2008
Taylor J. Mills, E. William Schweiger, M. Alisa Mast, David W. Clow
2012, Scientific Investigations Report 2011-5221
In water year 2007, the U.S. Geological Survey, in cooperation with the National Park Service, began a 2-year study to collect hydrologic, water-quality, and biological data to provide a baseline characterization of the North Fork Flathead River from the United States-Canada border to its confluence with the Middle Fork of...
Foraging ecology of least terns and piping plovers nesting on Central Platte River sandpits and sandbars
Mark H. Sherfy, Michael J. Anteau, Terry L. Shaffer, Marsha A. Sovada, Jennifer H. Stucker
2012, Open-File Report 2012-1059
Federally listed least terns (Sternula antillarum) and piping plovers (Charadrius melodus) nest on riverine sandbars on many major midcontinent river systems. On the Central Platte River, availability of sandbar habitat is limited, and both species nest on excavated sandpits in the river's floodplain. However, the extent to which sandpit-nesting birds...
Geochemical and hydrologic data for San Marcos Springs recharge characterization near San Marcos, Texas, November 2008--December 2010
Cassi L. Crow
2012, Data Series 672
During 2008–10, the U.S. Geological Survey, in cooperation with the San Antonio Water System, collected geochemical and hydrologic data in Bexar, Comal, and Hays Counties, Texas, to define and characterize the sources of recharge to San Marcos Springs. Precipitation samples were collected for stable isotope analysis at 1 site and...
Computing discharge using the index velocity method
Victor A. Levesque, Kevin A. Oberg
2012, Techniques and Methods 3-A23
Application of the index velocity method for computing continuous records of discharge has become increasingly common, especially since the introduction of low-cost acoustic Doppler velocity meters (ADVMs) in 1997. Presently (2011), the index velocity method is being used to compute discharge records for approximately 470 gaging stations operated and maintained...
Integration of new geologic mapping and satellite-derived quartz mapping yields insights into the structure of the Roberts Mountains allochthon applicable to assessments for concealed Carlin-type gold deposits
Christopher S. Holm-Denoma, Albert H. Hofstra, Barnaby W. Rockwell, Paula J. Noble
2012, Scientific Investigations Report 2012-5058
Geologic mapping and remote sensing across north-central Nevada enable recognition of a thick sheet of Middle and Upper Ordovician Valmy Formation quartzite that structurally overlies folded and faulted Ordovician through Devonian stratigraphic units of the Roberts Mountains allochthon. In the northern Independence Mountains and nearby Double Mountain area, the Valmy...
Advancing global marine biogeography research with open-source GIS software and cloud-computing
Ei Fujioka, Edward Vanden Berghe, Ben Donnelly, Julio Castillo, Jesse Cleary, Chris Holmes, Sean McKnight, patrick Halpin
2012, Transactions in GIS (16) 143-160
Across many scientific domains, the ability to aggregate disparate datasets enables more meaningful global analyses. Within marine biology, the Census of Marine Life served as the catalyst for such a global data aggregation effort. Under the Census framework, the Ocean Biogeographic Information System was established to coordinate an unprecedented aggregation...
Combining lake and watershed characteristics with Landsat TM data for remote estimation of regional lake clarity
Ian M. McCullough, Cyndy Loftin, Steven A. Sader
2012, Remote Sensing of Environment (123) 109-115
Water clarity is a reliable indicator of lake productivity and an ideal metric of regional water quality. Clarity is an indicator of other water quality variables including chlorophyll-a, total phosphorus and trophic status; however, unlike these metrics, clarity can be accurately and efficiently estimated remotely on a regional scale. Remote...
Forward
Thomas M. Cronin
2012, Book chapter, Reconstructing Earth's climate history
No abstract available....
Alaska Geochemical Database - Mineral Exploration Tool for the 21st Century - PDF of presentation
Matthew Granitto, Jeanine M. Schmidt, Keith A. Labay, Nora B. Shew, Bruce M. Gamble
2012, Open-File Report 2012-1060
The U.S. Geological Survey has created a geochemical database of geologic material samples collected in Alaska. This database is readily accessible to anyone with access to the Internet. Designed as a tool for mineral or environmental assessment, land management, or mineral exploration, the initial version of the Alaska Geochemical Database...
US nonfuel mineral exploration: Selected findings for 1995-2009 from the USGS
David R. Wilburn, Donald I. Bleiwas
2012, Mining Engineering
The U.S. Geological Survey (USGS) has been systematically monitoring global nonfuel mineral exploration activities to anticipate the location and quantity of future nonfuel minerals supply for about 100 commodities, with an emphasis on precious and base metals. Since 1995, the USGS has developed an annual list of 100 noteworthy...
Approximating tasseled cap values to evaluate brightness, greenness, and wetness for the Advanced Land Imager (ALI)
Kristina H. Yamamoto, Michael P. Finn
2012, Scientific Investigations Report 2012-5057
The Tasseled Cap transformation is a method of image band conversion to enhance spectral information. It primarily is used to detect vegetation using the derived brightness, greenness, and wetness bands. An approximation of Tasseled Cap values for the Advanced Land Imager was investigated and compared to the Landsat Thematic Mapper...
Assessment of undiscovered oil and gas resources of four East Africa Geologic Provinces
Michael E. Brownfield, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Troy A. Cook, Richard M. Pollastro, Marilyn E. Tennyson
2012, Fact Sheet 2012-3039
Four geologic provinces along the east coast of Africa recently were assessed for undiscovered, technically recoverable oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 27.6 billion...
Assessment of undiscovered oil and gas resources of the South Africa Coastal Province, Africa
Michael E. Brownfield, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Troy A. Cook, Richard M. Pollastro
2012, Fact Sheet 2012-3030
The South Africa Coastal Province along the South Africa coast recently was assessed for undiscovered, technically recoverable oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 2.13...
Groundwater quality in the Upper Susquehanna River Basin, New York, 2009
James E. Reddy, Amy J. Risen
2012, Open-File Report 2012-1045
Water samples were collected from 16 production wells and 14 private residential wells in the Upper Susquehanna River Basin from August through December 2009 and were analyzed to characterize the groundwater quality in the basin. Wells at 16 of the sites were completed in sand and gravel aquifers, and 14...
Water quality and the composition of fish and macroinvertebrate communities in the Devils and Pecos Rivers within and upstream from the Amistad National Recreation Area, Texas, 2005-7
J. Bruce Moring
2012, Scientific Investigations Report 2012-5038
To gain a better understanding of the water quality and status of fish and macroinvertebrate communities, the U.S. Geological Survey, in cooperation with the National Park Service and Amistad National Recreation Area, completed a reconnaissance-level survey of the water quality and fish and macroinvertebrate communities in the Devils and Pecos...
Evaluation of fault-normal/fault-parallel directions rotated ground motions for response history analysis of an instrumented six-story building
Erol Kalkan, Neal S. Kwong
2012, Open-File Report 2012-1058
According to regulatory building codes in United States (for example, 2010 California Building Code), at least two horizontal ground-motion components are required for three-dimensional (3D) response history analysis (RHA) of buildings. For sites within 5 km of an active fault, these records should be rotated to fault-normal/fault-parallel (FN/FP) directions, and...
Shifts in identity and activity of methanotrophs in arctic lake sediments in response to temperature changes
Ruo He, Matthew J. Wooller, John W. Pohlman, John Quensen, James M. Tiedje, Mary Beth Leigh
2012, Applied and Environmental Microbiology (78) 4715-4723
Methane (CH4) flux to the atmosphere is mitigated via microbial CH4 oxidation in sediments and water. As arctic temperatures increase, understanding the effects of temperature on the activity and identity of methanotrophs in arctic lake sediments is important to predicting future CH4 emissions. We used DNA-based stable-isotope probing (SIP), quantitative PCR (Q-PCR),...
Status and understanding of groundwater quality in the Tahoe-Martis, Central Sierra, and Southern Sierra study units, 2006-2007--California GAMA Priority Basin Project
Miranda S. Fram, Kenneth Belitz
2012, Scientific Investigations Report 2011-5216
Groundwater quality in the Tahoe-Martis, Central Sierra, and Southern Sierra study units was investigated as part of the Priority Basin Project of the California Groundwater Ambient Monitoring and Assessment (GAMA) Program. The three study units are located in the Sierra Nevada region of California in parts of Nevada, Placer, El...
Groundwater quality in the Southern Sierra Nevada, California
Miranda S. Fram, Kenneth Belitz
2012, Fact Sheet 2012-3011
Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to...
Groundwater quality in the Tahoe and Martis Basins, California
Miranda S. Fram, Kenneth Belitz
2012, Fact Sheet 2011-3143
Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to...
Groundwater quality in the Central Sierra Nevada, California
Miranda S. Fram, Kenneth Belitz
2012, Fact Sheet 2012-3010
Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to...
