Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184606 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1923, results 48051 - 48075

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Effects of an exotic prey species on a native specialist: Example of the snail kite
Christopher E. Cattau, J. Martin, Wiley M. Kitchens
2010, Biological Conservation (143) 513-520
Despite acknowledging that exotic species can exhibit tremendous influence over native populations, few case studies have clearly demonstrated the effects of exotic prey species on native predators. We examined the effects of the recently introduced island apple snail (Pomacea insularum) on...
Persistent organic pollutants in fish tissue in the mid-continental great rivers of the United States
Karen A. Blacksom, David M. Walters, Terri M. Jicha, James M. Lazorchak, Theodore R. Angradi, David W. Bolgrien
2010, Science of the Total Environment (408) 1180-1189
Great rivers of the central United States (Upper Mississippi, Missouri, and Ohio rivers) are valuable economic and cultural resources, yet until recently their ecological condition has not been well quantified. In 2004–2005, as part of the Environmental Monitoring and Assessment Program for Great River Ecosystems (EMAP-GRE), we measured legacy organochlorines...
Rheologic and structural controls on the deformation of Okmok volcano, Alaska: FEMs, InSAR, and ambient noise tomography
Timothy Masterlark, Matthew M. Haney, Haylee Dickinson, Cheryl Searcy, T. Fournier
2010, Journal of Geophysical Research B: Solid Earth (115)
Interferometric synthetic aperture radar (InSAR) data indicate that the caldera of Okmok volcano, Alaska, subsided more than a meter during its eruption in 1997. The large deformation suggests a relatively shallow magma reservoir beneath Okmok. Seismic tomography using ambient ocean noise reveals two low‐velocity zones (LVZs). The shallow LVZ corresponds...
Consumption of baits containing raccoon pox-based plague vaccines protects black-tailed prairie dogs (Cynomys ludovicianus)
Tonie E. Rocke, Nicola Pussini, Susan Smith, Judy L. Williamson, Bradford Powell, Jorge E. Osorio
2010, Vector-Borne and Zoonotic Diseases (10) 51-58
Baits containing recombinant raccoon poxvirus (RCN) expressing plague antigens (fraction 1 [F1] and a truncated form of the V protein-V307) were offered for voluntary consumption several times over the course of several months to a group of 16 black-tailed prairie dogs (Cynomys ludovicianus). For comparison, another group of prairie dogs...
Hydraulic modeling of mussel habitat at a bridge-replacement site, Allegheny River, Pennsylvania, USA
John W. Fulton, Chad R. Wagner, Megan E. Rogers, Gregory F. Zimmerman
2010, Ecological Modelling (221) 540-554
The Allegheny River in Pennsylvania supports a large and diverse freshwater-mussel community, including two federally listed endangered species, Pleurobema clava(Clubshell) and Epioblasma torulosa rangiana (Northern Riffleshell). It is recognized that river hydraulics and morphology play important roles in mussel distribution. To assess the hydraulic influences of bridge replacement on mussel habitat, metrics...
Localized damage associated with topographic amplification during the 12 January 2010 M 7.0 Haiti earthquake
Susan E. Hough, Jean Robert Altidor, Dieuseul Anglade, Douglas D. Given, Doug Given, M. Guillard Janvier, J. Zebulon Maharrey, Mark E. Meremonte, B. S.-L. Mildor, Claude Prepetit, Alan K. Yong
2010, Nature Geoscience (3) 778-782
Local geological conditions, including both near-surface sedimentary layers<a id="ref-link-section-d4102e437" title="Singh, S. K. et al. Some aspects of source characteristics of the 19 September 1985 Michoacan earthquake and ground motion amplification in and near Mexico City from strong motion data. Bull. Seismol. Soc. Am. 78, 451–477 (1988)." href="https://www.nature.com/articles/ngeo988#ref-CR1" data-track="click" data-track-action="reference anchor"...
Invasion and production of New Zealand mud snails in the Colorado River, Glen Canyon
Wyatt F. Cross, E.J. Rosi-Marshall, Katherine E. Behn, Theodore A. Kennedy, Robert O Hall, A. Elizabeth Fuller, C. V. Baxter
2010, Biological Invasions (12) 3033-3043
Species invasions are often associated with large-scale human alteration of ecosystems. One classic example is the increasing dominance of non-native taxa below and above dams on large rivers. These dams substantially alter the physical template of river ecosystems, and exotic taxa often proliferate with potentially large impacts on coexisting taxa...
Geophysical Data Collected off the South Shore of Martha's Vineyard, Massachusetts
J. F. Denny, W. W. Danforth, D.S. Foster, C. R. Sherwood
2010, Open-File Report 2008-1288
The U.S. Geological Survey Woods Hole Science Center conducted a nearshore geophysical survey offshore of the southern coast of Martha's Vineyard, in the vicinity of the Martha's Vineyard Coastal Observatory in 2007. This mapping program was part of a larger research effort supporting the Office of Naval Research Ripples Directed-Research...
Drilling a Deep Geologic Test Well at Fort Pulaski National Monument, Georgia
Arthur P. Schultz, Ellen Seefelt
2010, Fact Sheet 2009-3112
The U.S. Geological Survey, in cooperation with the National Park Service, is drilling a deep geologic test well at Fort Pulaski National Monument, Georgia. The operation is scheduled to run between mid-February and mid-April 2010. When completed, the well will be about 1,500 feet deep. The purpose of this test...
Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut
Martha L. Jagucki, Craig J. Brown, J. Jeffrey Starn, Sandra M. Eberts
2010, Fact Sheet 2010-3002
This fact sheet highlights findings from the vulnerability study of a public-supply well in Woodbury, Connecticut. The well typically produces water at the rate of 72 gallons per minute from the glacial aquifer system in the Pomperaug River Basin. Water samples were collected at the public-supply well and at monitoring...
Preliminary use of uric acid as a biomarker for wading birds on Everglades Tree Islands, Florida, United States
Anne L. Bates, William H. Orem, Susan Newman, Dale E. Gawlik, Harry E. Lerch, M.D. Corum, Monica Van Winkle
2010, Open-File Report 2009-1203
Concentrations of organic biomarkers and concentrations of phosphorus in soil cores can potentially be used as proxies for historic population densities of wading birds on tree islands in the Florida Everglades. This report focuses on establishing a link between the organic biomarker uric acid found in wading bird guano and...
USGS-WHOI-DPRI Coulomb Stress-Transfer Model for the January 12, 2010, MW=7.0 Haiti Earthquake
Jian Lin, Ross S. Stein, Volkan Sevilgen, Shinji Toda
2010, Open-File Report 2010-1019
Using calculated stress changes to faults surrounding the January 12, 2010, rupture on the Enriquillo Fault, and the current (January 12 to 26, 2010) aftershock productivity, scientists from the U.S. Geological Survey (USGS), Woods Hole Oceanographic Institution (WHOI), and Disaster Prevention Research Institute, Kyoto University (DPRI) have made rough estimates...
Groundwater flow systems at the Nevada Test Site, Nevada: A synthesis of potentiometric contours, hydrostratigraphy, and geologic structures
Joseph M. Fenelon, Donald S. Sweetkind, Randell J. Laczniak
2010, Professional Paper 1771
Contaminants introduced into the subsurface of the Nevada Test Site by underground nuclear testing are of concern to the U.S. Department of Energy and regulators responsible for protecting human health and safety. The potential for contaminant movement away from the underground test areas and into the accessible environment is greatest...
Landsat Thematic Mapper Image Mosaic of Colorado
Christopher J. Cole, Suzanne M. Noble, Steven L. Blauer, Beverly A. Friesen, Mark A. Bauer
2010, Scientific Investigations Map 3101
The U.S. Geological Survey (USGS) Rocky Mountain Geographic Science Center (RMGSC) produced a seamless, cloud-minimized remotely-sensed image spanning the State of Colorado. Multiple orthorectified Landsat 5 Thematic Mapper (TM) scenes collected during 2006-2008 were spectrally normalized via reflectance transformation and linear regression based upon pseudo-invariant features (PIFS) following the removal...
An overview of historical channel adjustment and selected hydraulic values in the Lower Sabine and Lower Brazos River Basins, Texas and Louisiana
Franklin T. Heitmuller, Lauren E. Greene, John D. John D. Gordon
2010, Fact Sheet 2010-3005
The Sabine and Brazos are alluvial rivers; alluvial rivers are dynamic systems that adjust their geometry in response to changes in streamflow (discharge) and sediment load. In fluvial geomorphology, the term 'channel adjustment' refers to river channel changes in three geometric dimensions: (1) channel slope (profile); (2) the outline or...
Neoproterozoic through Silurian metallogenesis and tectonics of northeast Asia, Chapter 5 in Metallogenesis and tectonics of northeast Asia
Nikolai A. Berzin, Elimir G. Distanov, Onongyn Tomurtogoo, Vladimir F. Timofeev, Andrei V. Prokopiev, Warren J. Nokleberg
2010, Professional Paper 1765-5
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Late Carboniferous through early Jurassic metallogenesis and tectonics of northeast Asia, Chapter 7 in Metallogenesis and tectonics of northeast Asia
Sergey Dril, Alexander I. Khanchuk, Alexander A. Obolenskiy, Masatsugu Ogasawara, Sergey M. Rodionov, Vitaly I. Sotnikov, Alexander M. Spiridonov, Zhan V. Seminsky, Vladimir F. Timofeev, Andrei V. Prokopiev, Warren J. Nokleberg
2010, Professional Paper 1765-7
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Introduction, Chapter 1 in Metallogenesis and tectonics of northeast Asia
Leonid M. Parfenov, Gombosuren Badarch, Nikolai A. Berzin, Duk-Hwan Hwang, Alexander I. Khanchuk, Mikhail I. Kuzmin, Warren J. Nokleberg, Alexander A. Obolenskiy, Masatsugu Ogasawara, Andrei V. Prokopiev, Sergey M. Rodionov, Alexander P. Smelov, Hongquan Yan
2010, Professional Paper 1765-1
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Appendix A: Description of the Northeast Asia Project and Associated Products
Warren J. Nokleberg, Leonid M. Parfenov, Alexander I. Khanchuk, Mikhail I. Kuzmin, Alexander A. Obolenskiy, Andrei V. Prokopiev, Sergey M. Rodionov, Alexander P. Smelov, Gombosuren Badarch, Hongquan Yan, Duk-Hwan Hwang, Masatsugu Ogasawara
2010, Professional Paper 1765-A
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Appendix C: Summary of Major Metallogenic Belts in Northeast Asia (the Russian Far East, Yakutia, Siberia, Transbaikalia, Northern China, Mongolia, South Korea, and Japan)
Sergey M. Rodionov, Alexander A. Obolenskiy, Elimir G. Distanov, Gombosuren Badarch, Gunchin Dejidmaa, Duk-Hwan Hwang, Alexander I. Khanchuk, Masatsugu Ogasawara, Warren J. Nokleberg, Leonid M. Parfenov, Andrei V. Prokopiev, Zhan V. Seminskiy, Alexander P. Smelov, Hongquan Yan, Yuriy Davydov, Valeriy Yu. Fridovskiy, Gennandiy N. Gamyanin, Ochir Gerel, Alexei V. Kostin, Sergey A. Letunov, Xujun Li, Valeriy M. Nikitin, Vladimir V. Ratkin, Vladimir I. Shpikerman, Sadahisa Sudo, Vitaly I. Sotnikov, Alexander V. Spiridonov, Vitaly A. Stepanov, Fengyue Sun, Jiapeng Sun, Weizhi Sun, Valeriy M. Supletsov, Vladimir F. Timofeev, Oleg A. Tyan, Valeriy G. Vetluzhskikh, Koji Wakita, Yakov V. Yakovlev, Lydia M. Zorina
2010, Professional Paper 1765-C
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Metallogenesis and Tectonics of Northeast Asia
Warren J. Nokleberg, editor(s)
2010, Professional Paper 1765
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...