Geologic framework, structure, and hydrogeologic characteristics of the Knippa Gap area in eastern Uvalde and western Medina Counties, Texas
Allan K. Clark, Diana E. Pedraza, Robert R. Morris
2013, Scientific Investigations Report 2013-5149
The Edwards aquifer is the primary source of potable water for the San Antonio area in south-central Texas. The Knippa Gap was postulated to channel or restrict flow in the Edwards aquifer in eastern Uvalde County, and its existence was based on a series of numerical simulations of groundwater flow...
Host range, host ecology, and distribution of more than 11800 fish parasite species
Giovanni Strona, Maria Lourdes D. Palomares, Nicholas Bailly, Paolo Galli, Kevin D. Lafferty
2013, Ecology (94) 544
Our data set includes 38 008 fish parasite records (for Acanthocephala, Cestoda, Monogenea, Nematoda, Trematoda) compiled from the scientific literature, Internet databases, and museum collections paired to the corresponding host ecological, biogeographical, and phylogenetic traits (maximum length, growth rate, life span, age at maturity, trophic level, habitat preference, geographical range size,...
Predicting what helminth parasites a fish species should have using Parasite Co-occurrence Modeler (PaCo)
Giovanni Strona, Kevin D. Lafferty
2013, Journal of Parasitology (99) 6-10
Fish pathologists are often interested in which parasites would likely be present in a particular host. Parasite Co-occurrence Modeler (PaCo) is a tool for identifying a list of parasites known from fish species that are similar ecologically, phylogenetically, and geographically to the host of interest. PaCo uses data from FishBase...
Semiautomated tremor detection using a combined cross-correlation and neural network approach
Tobias Horstmann, Rebecca M. Harrington, Elizabeth S. Cochran
2013, Journal of Geophysical Research B: Solid Earth (118) 4827-4846
Despite observations of tectonic tremor in many locations around the globe, the emergent phase arrivals, low‒amplitude waveforms, and variable event durations make automatic detection a nontrivial task. In this study, we employ a new method to identify tremor in large data sets using a semiautomated technique. The method first reduces...
The 3D Elevation Program: summary for Alaska
William J. Carswell Jr.
2013, Fact Sheet 2013-3083
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Alaska, elevation data are critical for aviation navigation and safety, natural resources conservation, oil and gas resources, flood risk management, geologic resource...
Mapping invasive Phragmites australis in the coastal Great Lakes with ALOS PALSAR satellite imagery for decision support
Laura L. Bourgeau-Chavez, Kurt P. Kowalski, Martha L. Carlson Mazur, Kirk A. Scarbrough, Richard B. Powell, Colin N. Brooks, Brian Huberty, Liza K. Jenkins, Elizabeth C. Banda, David M. Galbraith, Zachary M. Laubach, Kevin Riordan
2013, Journal of Great Lakes Research (39) 65-77
The invasive variety of Phragmites australis (common reed) forms dense stands that can cause negative impacts on coastal Great Lakes wetlands including habitat degradation and reduced biological diversity. Early treatment is key to controlling Phragmites, therefore a map of the current distribution is needed. ALOS PALSAR imagery was used to...
Tectonic map of the Circum-Pacific region, Pacific basin sheet
E. Scheibner, G. W. Moore, K. J. Drummond, Corvalan Q.J. Dalziel, T. Moritani, Y. Teraoka, T. Sato, C. Craddock
2013, Circum-Pacific Map 52
Circum-Pacific Map Project: The Circum-Pacific Map Project was a cooperative international effort designed to show the relationship of known energy and mineral resources to the major geologic features of the Pacific basin and surrounding continental areas. Available geologic, mineral, and energy-resource data are being complemented by new, project-developed data...
Potential increases in natural disturbance rates could offset forest management impacts on ecosystem carbon stocks
John B. Bradford, Nicholas R. Jensen, Grant M. Domke, Anthony W. D’Amato
2013, Forest Ecology and Management (308) 178-187
Forested ecosystems contain the majority of the world’s terrestrial carbon, and forest management has implications for regional and global carbon cycling. Carbon stored in forests changes with stand age and is affected by natural disturbance and timber harvesting. We examined how harvesting and disturbance interact to influence forest carbon stocks...
Geodatabase compilation of hydrogeologic, remote sensing, and water-budget-component data for the High Plains aquifer, 2011
Natalie A. Houston, Sophia L. Gonzales-Bradford, Amanda T. Flynn, Sharon L. Qi, Steven M. Peterson, Jennifer S. Stanton, Derek W. Ryter, Terry L. Sohl, Gabriel B. Senay
2013, Data Series 777
The High Plains aquifer underlies almost 112 million acres in the central United States. It is one of the largest aquifers in the Nation in terms of annual groundwater withdrawals and provides drinking water for 2.3 million people. The High Plains aquifer has gained national and international attention as a...
Hydrographs showing groundwater levels for selected wells in the Puyallup River watershed and vicinity, Pierce and King Counties, Washington
R. C. Lane, R. J. Julich, G. B. Justin
2013, Data Series 791
Hydrographs of groundwater levels for selected wells in and adjacent to the Puyallup River watershed in Pierce and King Counties, Washington, are presented using an interactive Web-based map of the study area to illustrate changes in groundwater levels on a monthly and seasonal basis. The interactive map displays well locations...
Lithofacies, age, depositional setting, and geochemistry of the Otuk Formation in the Red Dog District, northwestern Alaska
Julie A. Dumoulin, Robert A. Burruss, Charles D. Blome
2013, Professional Paper 1795-B
Complete penetration of the Otuk Formation in a continuous drill core (diamond-drill hole, DDH 927) from the Red Dog District illuminates the facies, age, depositional environment, source rock potential, and isotope stratigraphy of this unit in northwestern Alaska. The section, in the Wolverine Creek plate of the Endicott Mountains Allochthon...
The δ2H and δ18O of tap water from 349 sites in the United States and selected territories
Tyler B. Coplen, Jurate M. Landwehr, Haiping Qi, Jennifer M. Lorenz
2013, Data Series 703
Because the stable isotopic compositions of hydrogen (δ2H) and oxygen (δ18O) of animal (including human) tissues, such as hair, nail, and urine, reflect the δ2H and δ18O of water and food ingested by an animal or a human and because the δ2H and δ18O of environmental waters vary geographically, δ2H...
Linking river management to species conservation using dynamic landscape scale models
Mary Freeman, Gary R. Buell, Lauren E. Hay, W. Brian Hughes, Robert B. Jacobson, John W. Jones, S.A. Jones, Jacob H. LaFontaine, Kenneth R. Odom, James T. Peterson, Jeffrey W. Riley, J. Stephen Schindler, C. Shea, J.D. Weaver
2013, River Research and Applications (29) 906-918
Efforts to conserve stream and river biota could benefit from tools that allow managers to evaluate landscape-scale changes in species distributions in response to water management decisions. We present a framework and methods for integrating hydrology, geographic context and metapopulation processes to simulate effects of changes in streamflow on fish...
Comparison of bird community indices for riparian restoration planning and monitoring
Jock S. Young, Elisabeth M. Ammon, Peter J. Weisburg, Thomas E. Dilts, Wesley E. Newton, Diane C. Wong-Kone, Lisa G. Heki
2013, Ecological Indicators (34) 159-167
The use of a bird community index that characterizes ecosystem integrity is very attractive to conservation planners and habitat managers, particularly in the absence of any single focal species. In riparian areas of the western USA, several attempts at arriving at a community index signifying a functioning riparian bird community...
Surface mineral maps of Afghanistan derived from HyMap imaging spectrometer data, version 2
Raymond F. Kokaly, Trude King, Todd M. Hoefen
2013, Data Series 787
This report presents a new version of surface mineral maps derived from HyMap imaging spectrometer data collected over Afghanistan in the fall of 2007. This report also describes the processing steps applied to the imaging spectrometer data. The 218 individual flight lines composing the Afghanistan dataset, covering more than 438,000...
Sediment distribution and hydrologic conditions of the Potomac aquifer in Virginia and parts of Maryland and North Carolina
Randolph E. McFarland
2013, Scientific Investigations Report 2013-5116
Sediments of the heavily used Potomac aquifer broadly contrast across major structural features of the Atlantic Coastal Plain Physiographic Province in eastern Virginia and adjacent parts of Maryland and North Carolina. Thicknesses and relative dominance of the highly interbedded fluvial sediments vary regionally. Vertical intervals in boreholes of coarse-grained sediment...
Submergence Vulnerability Index development and application to Coastwide Reference Monitoring System Sites and Coastal Wetlands Planning, Protection and Restoration Act projects
Camille L. Stagg, Leigh A. Sharp, Thomas E. McGinnis, Gregg A. Snedden
2013, Open-File Report 2013-1163
Since its implementation in 2003, the Coastwide Reference Monitoring System (CRMS) in Louisiana has facilitated the creation of a comprehensive dataset that includes, but is not limited to, vegetation, hydrologic, and soil metrics on a coastwide scale. The primary impetus for this data collection is to assess land management activities,...
Is there room for all of us? Renewable energy and Xerospermophilus mohavensis
Richard D. Inman, Todd C. Esque, Kenneth E. Nussear, Philip Leitner, Marjorie D. Matocq, Peter J. Weisberg, Tomas E. Dilts, Amy G. Vandergast
2013, Endangered Species Research (20) 1-18
Mohave ground squirrels Xerospermophilus mohavensis Merriam are small ground-dwelling rodents that have a highly restricted range in the northwest Mojave Desert, California, USA. Their small natural range is further reduced by habitat loss from agriculture, urban development, military training and recreational activities. Development of wind and solar resources for renewable...
A network extension of species occupancy models in a patchy environment applied to the Yosemite toad (Anaxyrus canorus)
Eric L. Berlow, Roland A. Knapp, Steven M. Ostoja, Richard J. Williams, Heather McKenny, John R. Matchett, Qinghau Guo, Gary M. Fellers, Patrick Kleeman, Matthew L. Brooks, Lucas Joppa
2013, PLoS ONE (8)
A central challenge of conservation biology is using limited data to predict rare species occurrence and identify conservation areas that play a disproportionate role in regional persistence. Where species occupy discrete patches in a landscape, such predictions require data about environmental quality of individual patches and the connectivity among high...
Landscape-scale effects of fire severity on mixed-conifer and red fir forest structure in Yosemite National Park
Van R. Kane, James A. Lutz, Susan L. Roberts, Douglas F. Smith, Robert J. McGaughey, Nicholas A. Povak, Matthew L. Brooks
2013, Forest Ecology and Management (287) 17-31
While fire shapes the structure of forests and acts as a keystone process, the details of how fire modifies forest structure have been difficult to evaluate because of the complexity of interactions between fires and forests. We studied this relationship across 69.2 km2 of Yosemite National Park, USA, that was...
Distribution of indoor radon concentrations in Pennsylvania, 1990-2007
Eliza L. Gross
2013, Scientific Investigations Report 2013-5143
Results from 548,507 indoor radon tests from a database compiled by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, Radon Division, are evaluated in this report in an effort to determine areas where concentrations of radon are highest. Indoor radon concentrations were aggregated according to geologic unit and...
Analytical properties of some commercially available nitrate reductase enzymes evaluated as replacements for cadmium in automated, semiautomated, and manual colorimetric methods for determination of nitrate plus nitrite in water
Charles J. Patton, Jennifer R. Kryskalla
2013, Scientific Investigations Report 2013-5033
A multiyear research effort at the U.S. Geological Survey (USGS) National Water Quality Laboratory (NWQL) evaluated several commercially available nitrate reductase (NaR) enzymes as replacements for toxic cadmium in longstanding automated colorimetric air-segmented continuous-flow analyzer (CFA) methods for determining nitrate plus nitrite (NOx) in water. This research culminated in USGS...
Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through September 30, 2012
Joseph E. Beman
2013, Data Series 790
The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25–40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompasses the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the basin were...
A comprehensive evaluation of two MODIS evapotranspiration products over the conterminous United States: using point and gridded FLUXNET and water balance ET
Naga M. Velpuri, Gabriel B. Senay, Ramesh K. Singh, Stefanie Bohms, James P. Verdin
2013, Remote Sensing of Environment (139) 35-49
Remote sensing datasets are increasingly being used to provide spatially explicit large scale evapotranspiration (ET) estimates. Extensive evaluation of such large scale estimates is necessary before they can be used in various applications. In this study, two monthly MODIS 1 km ET products, MODIS global ET (MOD16) and Operational Simplified...
Massachusetts shoreline change project: a GIS compilation of vector shorelines and associated shoreline change data for the 2013 update
Theresa L. Smith, Emily A. Himmelstoss, E. Robert Thieler
2013, Open-File Report 2012-1183
Identifying the rates and trends associated with the position of the shoreline through time presents vital information on potential impacts these changes may have on coastal populations and infrastructure, and supports informed coastal management decisions. This report publishes the historical shoreline data used to assess the scale and timing of...
