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Page 1730, results 43226 - 43250

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Bayesian adaptive survey protocols for resource management
Brian J. Halstead, Glenn D. Wylie, Peter S. Coates, Michael L. Casazza
2011, Journal of Wildlife Management (75) 450-457
Transparency in resource management decisions requires a proper accounting of uncertainty at multiple stages of the decision‐making process. As information becomes available, periodic review and updating of resource management protocols reduces uncertainty and improves management decisions. One of the most basic steps to mitigating anthropogenic effects on populations is determining...
Groundwater quality in the Chemung River Basin, New York, 2008
Amy J. Risen, James E. Reddy
2011, Open-File Report 2011-1112
The second groundwater quality study of the Chemung River Basin in south-central New York was conducted as part of the U.S. Geological Survey 305(b) water-quality-monitoring program. Water samples were collected from five production wells and five private residential wells from October through December 2008. The samples were analyzed to characterize...
A comparison of effects from prescribed fires and wildfires managed for resource objectives in Sequoia and Kings Canyon National Parks
Jonathan C. B. Nesmith, Anthony C. Caprio, Anne H. Pfaff, Thomas W. McGinnis, Jon E. Keeley
2011, Forest Ecology and Management (261) 1275-1282
Current goals for prescription burning are focused on measures of fuel consumption and changes in forest density. These benchmarks, however, do not address the extent to which prescription burning meets perceived ecosystem needs of heterogeneity in burning, both for overstory trees and understory herbs and shrubs. There are still questions...
A field test of attractant traps for invasive Burmese pythons (Python molurus bivittatus) in southern Florida
Robert N. Reed, Kristen M. Hart, Gordon H. Rodda, Frank J. Mazzotti, Ray W. Snow, Michael Cherkiss, Rondald Rozar, Scott Goetz
2011, Wildlife Research (38) 114-121
Context: Invasive Burmese pythons (Python molurus bivittatus) are established over thousands of square kilometres of southern Florida, USA, and consume a wide range of native vertebrates. Few tools are available to control the python population, and none of the available tools have been validated in the field to assess capture...
Geology highlights, Ride the Rockies 2011
Janet L. Slate
2011, General Information Product 128
The author provides a brief description of the geology along the route for each day of the ride, from June 12 through June 17, 2011. Ride the Rockies begins in Crested Butte, Colorado, with stops in Buena Vista, Edwards, Steamboat Springs, Granby, and Georgetown. A small, generalized geologic map also...
Ride the Rockies 2011, postcard
Janet L. Slate
2011, General Information Product 127
2011 Ride The Rockies route on shaded-relief mosaic of USGS Landsat 7 satellite images, north-central Colorado....
Geospatial characteristics of Florida's coastal and offshore environments: Coastal habitats, artificial reefs, wrecks, dumping grounds, harbor obstructions and offshore sand resources
Amanda W.J. Demopoulos, Ann M. Foster, Michal L. Jones, Daniel J. Gualtieri
2011, Scientific Investigations Map 3167
The Geospatial Characteristics GeoPDF of Florida's Coastal and Offshore Environments is a comprehensive collection of geospatial data describing the political boundaries and natural resources of Florida. This interactive map provides spatial information on bathymetry, sand resources, coastal habitats, artificial reefs, shipwrecks, dumping grounds, and harbor obstructions. The map should be...
Magnitude and frequency of floods for rural streams in Florida, 2006
Richard J. Verdi, Joann F. Dixon
2011, Scientific Investigations Report 2011-5034
Methods for estimating the magnitude of floods for selected percent chance exceedance probabilities are presented for ungaged streams in Florida that are not sub stantially affected by regulation, channelization, or urban development. Flood-frequency flows also are presented for 275 Florida streamgages used in the regional regression analysis. Regression relations used...
Three‐dimensional model for the crust and upper mantle in the Barents Sea region
H. Bangum, O. Ritzmann, N. Maercklin, J.I. Faleide, Walter D. Mooney, Shane T. Detweiler
2011, Eos, Earth and Space Science News (86) 160-161
The Barents Sea and its surroundings is an epicontinental region which previously has been difficult to access, partly because of its remote Arctic location (Figure 1) and partly because the region has been politically sensitive. Now, however, this region, and in particular its western parts, has been very well surveyed...
Small explosion from new vent at Kilauea’s summit
David C. Wilson, Tamar Elias, Tim R. Orr, Matthew R. Patrick, Jeff Sutton, Don Swanson
2011, Eos, Transactions, American Geophysical Union (89) 203-203
At 0258 Hawaii‐Aleutian Standard Time (HST) on 19 March 2008, a small explosion scattered altered and fresh lithic debris across a 40‐hectare area at the summit of Kilauea volcano. This explosion, the first recorded there since 1924, issued from a vent about 35 meters wide along the east wall of...
Mars atmospheric surface interactions and the CO2 cycle
Timothy N. Titus, Anthony Colaprete
2011, Eos, Transactions, American Geophysical Union (86)
Mars' northern and southern seasonal polar caps are formed during their respective autumn and winter seasons both by condensation of atmospheric carbon dioxide (CO2) directly onto the surface, and through atmospheric precipitation in the form of CO2 snow. During the polar spring and summer, the seasonal ice sublimes, returning CO2 to the...
Geospatial characteristics of Florida's coastal and offshore environments: Distribution of important habitats for coastal and offshore biological resources and offshore sand resources
Amanda W.J. Demopoulos, Ann M. Foster, Michal L. Jones, Daniel J. Gualtieri
2011, Scientific Investigations Map 3166
The Geospatial Characteristics GeoPDF of Florida's Coastal and Offshore Environments is a comprehensive collection of geospatial data describing the political boundaries and natural resources of Florida. This interactive map provides spatial information on bathymetry, sand resources, and locations of important habitats (for example, Essential Fish Habitats (EFH), nesting areas, strandings)...
Spatially pooled depth-dependent reservoir storage, elevation, and water-quality data for selected reservoirs in Texas, January 1965-January 2010
Thomas E. Burley, William H. Asquith, Donald L. Brooks
2011, Data Series 594
The U.S. Geological Survey (USGS), in cooperation with Texas Tech University, constructed a dataset of selected reservoir storage (daily and instantaneous values), reservoir elevation (daily and instantaneous values), and water-quality data from 59 reservoirs throughout Texas. The period of record for the data is as large as January 1965-January 2010....
Suspended sediment and organic contaminants in the San Lorenzo River, California, water years 2009-2010
Amy E. Draut, Christopher H. Conaway, Kathy R. Echols, Curt D. Storlazzi, Andrew Ritchie
2011, Open-File Report 2011-1120
This report presents analyses of suspended sediment and organic contaminants measured during a two-year study of the San Lorenzo River, central California, which discharges into the Pacific Ocean within the Monterey Bay National Marine Sanctuary. Most suspended-sediment transport occurred during flooding caused by winter storms; 55 percent of the sediment...
Principal facts for gravity stations collected in 2010 from White Pine and Lincoln Counties, east-central Nevada
Edward A. Mankinen, Edwin H. McKee
2011, Open-File Report 2011-1084
Increasing demands on the Colorado River system within the arid Southwestern United States have focused attention on finding new, alternative sources of water. Particular attention is being paid to the eastern Great Basin, where important ground-water systems occur within a regionally extensive sequence of Paleozoic carbonate rocks and in the...
Soil data from different-age Picea mariana stands near Delta Junction, Alaska
Kristen L. Manies, Jennifer W. Harden
2011, Open-File Report 2011-1061
One objective of the U.S. Geological Survey\'s Fate of Carbon in Alaskan Landscapes (FOCAL) project is to study the effects of fire and soil drainage on soil carbon storage in boreal forests. For this purpose, the project has measured the soil carbon content in several chronosequences (time since disturbance) of...
Land area change in coastal Louisiana from 1932 to 2010
Brady R. Couvillion, John A. Barras, Gregory D. Steyer, William Sleavin, Michelle Fischer, Holly Beck, Nadine Trahan, Brad Griffin, David Heckman
2011, Scientific Investigations Map 3164
Coastal Louisiana wetlands make up the seventh largest delta on Earth, contain about 37 percent of the estuarine herbaceous marshes in the conterminous United States, and support the largest commercial fishery in the lower 48 States. These wetlands are in peril because Louisiana currently undergoes about 90 percent of the...
Characterization of geomorphic units in the alluvial valleys and channels of Gulf Coastal Plain rivers in Texas, with examples from the Brazos, Sabine, and Trinity Rivers, 2010
David K. Coffman, Greg Malstaff, Franklin T. Heitmuller
2011, Scientific Investigations Report 2011-5067
The U.S. Geological Survey, in cooperation with the Texas Water Development Board, described and characterized examples of geomorphic units within the channels and alluvial valleys of Texas Gulf Coastal Plain rivers using a geomorphic unit classification scale that differentiates geomorphic units on the basis of their location either outside or...
Prevalence of Mycoplasma ovipneumoniae in desert bighorn sheep in Arizona
Anne E. Justice-Allen, Clint J. Luedtke, Matthew Overstreet, James W. Cain III, Thomas R. Stephenson
2011, Book, Desert Bighorn Council Transactions 2011
To assess the potential for an epizootic of pneumonia to result from either natural immigration or translocation, we compared the seroprevalence to Mycoplasma ovipneumoniae in several populations of desert bighorn sheep in Arizona. We collected blood samples and nasal or oropharyngeal swabs from 124 desert bighorn sheep (Ovis canadensis nelsoni)...
A habitat overlap analysis derived from maxent for tamarisk and the south-western willow flycatcher
Patricia York, Paul Evangelista, Sunil Kumar, James Graham, Curtis Flather, Thomas Stohlgren
2011, Frontiers of Earth Science (5) 120-129
Biologic control of the introduced and invasive, woody plant tamarisk (Tamarix spp, saltcedar) in south-western states is controversial because it affects habitat of the federally endangered South-western Willow Flycatcher (Empidonax traillii extimus). These songbirds sometimes nest in tamarisk where floodplain-level invasion replaces native habitats. Biologic control, with the saltcedar leaf beetle...