Mitigating amphibian disease: strategies to maintain wild populations and control chytridiomycosis
Douglas C. Woodhams, Jaime Bosch, Cheryl J. Briggs, Scott Cashins, Leyla R. Davis, Antje Lauer, Erin L. Muths, Robert Puschendorf, Benedikt R. Schmidt, Brandon Sheafor, Jamie Voyles
2011, Frontiers in Zoology (8)
Background Rescuing amphibian diversity is an achievable conservation challenge. Disease mitigation is one essential component of population management. Here we assess existing disease mitigation strategies, some in early experimental stages, which focus on the globally emerging chytrid fungus Batrachochytrium dendrobatidis. We discuss the precedent for each strategy...
Estimated loads of suspended sediment and selected trace elements transported through the Clark Fork basin, Montana, in selected periods before and after the breach of Milltown Dam (water years 1985-2009)
Steven K. Sando, John H. Lambing
2011, Scientific Investigations Report 2011-5030
Milltown Reservoir is a National Priorities List Superfund site in the upper Clark Fork basin of western Montana where sediments enriched in trace elements from historical mining and ore processing have been deposited since the completion of Milltown Dam in 1908. Milltown Dam was breached on March 28, 2008, as...
Groundwater conditions and studies in Georgia, 2008-2009
Michael F. Peck, David C. Leeth, Jaime A. Painter
2011, Scientific Investigations Report 2011-5048
The U.S. Geological Survey collects groundwater data and conducts studies to monitor hydrologic conditions, better define groundwater resources, and address problems related to water supply, water use, and water quality. In Georgia, water levels were monitored continuously at 179 wells during 2008 and 181 wells during 2009. Because of missing...
EAARL Coastal Topography-Cape Hatteras National Seashore, North Carolina, Post-Nor'Ida, 2009: Bare Earth
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. C. Brock, C. W. Wright, D.B. Nagle, Sara Stevens
2011, Data Series 578
These remotely sensed, geographically referenced elevation measurements of lidar-derived bare-earth (BE) topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI. This project provides highly detailed...
Time-domain electromagnetic soundings collected in Dawson County, Nebraska, 2007-09
Jason Payne, Andrew Teeple
2011, Data Series 581
Between April 2007 and November 2009, the U.S. Geological Survey, in cooperation with the Central Platte Natural Resources District, collected time-domain electro-magnetic (TDEM) soundings at 14 locations in Dawson County, Nebraska. The TDEM soundings provide information pertaining to the hydrogeology at each of 23 sites at the 14 locations; 30...
Vegetation communities at Big Muddy National Fish and Wildlife Refuge, Missouri
Matthew A. Struckhoff, Keith W. Grabner, Esther D. Stroh
2011, Open-File Report 2011-1038
New and existing data were used to describe and map vegetation communities at Big Muddy National Fish and Wildlife Refuge. Existing data had been gathered during the growing seasons of 2002, 2003, and 2004. New data were collected in 2007 to describe previously unsampled communities and communities within which insufficient...
River-aquifer exchanges in the Yakima River basin, Washington
J. J. Vaccaro
2011, Scientific Investigations Report 2011-5026
Five categories of data are analyzed to enhance understanding of river-aquifer exchanges-the processes by which water moves between stream channels and the adjacent groundwater system-in the Yakima River basin. The five datasets include (1) results of chemical analyses of water for tritium (3H, a radioactive isotope of hydrogen) and the...
The chronology for the d18O record from Devils Hole, Nevada, extended into the Mid-Holocene
J.M. Landwehr, W.D. Sharp, T.B. Coplen, K.R. Ludwig, I.J. Winograd
2011, Open-File Report 2011-1082
This report presents the numeric values for the chronology of the paleoclimatically relevant mid-to-late Pleistocene record of the ratios of stable oxygen isotope (delta18O) in vein calcite from Devils Hole, Nev., which recently had been extended into the mid-Holocene. Dating was obtained using 230Th-234U-238U thermal ionization mass spectrometry. Devils Hole is...
Magnitude and Frequency of Floods for Urban and Small Rural Streams in Georgia, 2008
Anthony J. Gotvald, Andrew E. Knaak
2011, Scientific Investigations Report 2011-5042
A study was conducted that updated methods for estimating the magnitude and frequency of floods in ungaged urban basins in Georgia that are not substantially affected by regulation or tidal fluctuations. Annual peak-flow data for urban streams from September 2008 were analyzed for 50 streamgaging stations (streamgages) in Georgia and...
Natural gas production and anomalous geothermal gradients of the deep Tuscaloosa Formation
Lauri Burke
2011, Open-File Report 2011-1086
For the largest producing natural gas fields in the onshore Gulf of Mexico Basin, the relation between temperature versus depth was investigated. Prolific natural gas reservoirs with the highest temperatures were found in the Upper Cretaceous downdip Tuscaloosa trend in Louisiana. Temperature and production trends from the deepest field, Judge...
Conceptual ecological models to support detection of ecological change on Alaska National Wildlife Refuges
Andrea Woodward, Erik A. Beever
2011, Open-File Report 2011-1085
More than 31 million hectares of land are protected and managed in 16 refuges by the U.S. Fish and Wildlife Service (USFWS) in Alaska. The vastness and isolation of Alaskan refuges give rise to relatively intact and complete ecosystems. The potential for these lands to provide habitat for trust species...
Condition of streams in Independence, Missouri: What is being done to protect stream health and how citizens can help
Shelley L. Niesen, Dorris L. Bender, Richard H. Champion Jr., Eric D. Christensen, Thomas E. Harris
2011, Fact Sheet 2011-3033
No abstract available....
Sea-floor geology and topography offshore in Eastern Long Island Sound
L.J. Poppe, K.Y. McMullen, S.D. Ackerman, D.S. Blackwood, J.D. Schaer, M.R. Forrest, A.J. Ostapenko, E. F. Doran
2011, Open-File Report 2010-1150
A gridded multibeam bathymetric dataset covers approximately 133.7 square kilometers of sea floor offshore in eastern Long Island Sound. Although originally collected for charting purposes during National Oceanic and Atmospheric Administration hydrographic survey H11997, these acoustic data, and the sea-floor sampling and photography stations subsequently occupied to verify them during...
Surficial geology of the sea floor in Long Island Sound offshore of Orient Point, New York
K.Y. McMullen, L.J. Poppe, W. W. Danforth, D.S. Blackwood, J.D. Schaer, M.R. Guberski, D.A. Wood, E. F. Doran
2011, Open-File Report 2010-1100
The U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection (CT DEP) are working cooperatively to map and interpret features of the sea floor along the northeastern coast of the United States. This report presents multibeam bathymetry and sidescan-sonar data obtained...
WTAQ version 2-A computer program for analysis of aquifer tests in confined and water-table aquifers with alternative representations of drainage from the unsaturated zone
Paul M. Barlow, Allen F. Moench
2011, Techniques and Methods 3-B9
The computer program WTAQ simulates axial-symmetric flow to a well pumping from a confined or unconfined (water-table) aquifer. WTAQ calculates dimensionless or dimensional drawdowns that can be used with measured drawdown data from aquifer tests to estimate aquifer hydraulic properties. Version 2 of the program, which is described in this...
Analysis of long-term trends in flow from a large spring complex in northern Florida
Jack W. Grubbs
Eve L. Kuniansky, editor(s)
2011, Conference Paper, U.S. Geological Survey Karst Interest Group proceedings
Nonparametric regression analysis of historic flow and rainfall data was used to estimate declining flows in a river draining a large spring complex in northern Florida, USA. The analysis indicated that flow declined by an estimated 23 percent from 1900 to 2009. The rate of decline appeared to increase over...
Water Science Programs in Kansas
Andy Ziegler
2011, General Information Product 121
The USGS has collected hydrologic information in Kansas since 1895 with the first USGS Cooperative Water Program funding agreement for 6 streamflow gages with the Kansas Water Board. USGS collects streamflow and gage-height data; reservoir content; water-quality and water-quantity data; suspended-sediment data; and groundwater levels. Hydrologic studies are conducted on...
Stream profile analyses using a step-backwater model for selected reaches in the Chippewa Creek Basin in Medina, Wayne, and Summit Counties, Ohio
David E. Straub, Andrew D. Ebner
2011, Scientific Investigations Report 2011-5024
The USGS, in cooperation with the Chippewa Subdistrict of the Muskingum Watershed Conservancy District, performed hydrologic and hydraulic analyses for selected reaches of three streams in Medina, Wayne, Stark, and Summit Counties in northeast Ohio: Chippewa Creek, Little Chippewa Creek, and River Styx. This study was done to facilitate assessment...
2008 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory
Christina A. Neal, Robert G. McGimsey, James P. Dixon, Cheryl E. Cameron, Anton A. Nuzhdaev, Marina Chibisova
2011, Scientific Investigations Report 2010-5243
The Alaska Volcano Observatory (AVO) responded to eruptions, possible eruptions, and volcanic unrest or suspected unrest at seven separate volcanic centers in Alaska during 2008. Significant explosive eruptions at Okmok and Kasatochi Volcanoes in July and August dominated Observatory operations in the summer and autumn. AVO maintained 24-hour staffing at...
Hurricane impact and recovery shoreline change analysis of the Chandeleur Islands, Louisiana, USA: 1855 to 2005
Sarah M. Fearnley, Michael Miner, John Brock
2011, Fact Sheet 2011-3039
Results from historical (1855-2005) shoreline change analysis of the Chandeleur Islands, Louisiana, demonstrate that tropical cyclone frequency dominates the long-term evolution of this barrier-island arc. The detailed results of this study were published in December 2009 as part of a special issue of Geo-Marine Letters that documents early results from...
Mysid and fish zooplanktivory in Lake Ontario: quantification of direct and indirect effects
Gideon Gal, Lars G. Rudstam, Edward L. Mills, Jana R. Lantry, Ora E. Johannsson, C. Greene
2011, Canadian Journal of Fisheries and Aquatic Sciences (63) 2734-2747
Mysis relicta and planktivorous fish feed on zooplankton in Lake Ontario and form a trophic triangle that includes intraguild predation by fish on mysids. Thus, fish affect zooplankton both directly and indirectly. To evaluate the importance of alewife (Alosa pseudoharengus), rainbow smelt (Osmerus mordax), and mysids as zooplanktivores in Lake...
Ontology patterns for complex topographic feature types
Dalia E. Varanka
2011, Cartography and Geographic Information Science (38) 126-136
Complex feature types are defined as integrated relations between basic features for a shared meaning or concept. The shared semantic concept is difficult to define in commonly used geographic information systems (GIS) and remote sensing technologies. The role of spatial relations between complex feature parts was recognized in early GIS...
Predicting community responses to perturbations in the face of imperfect knowledge and network complexity
Mark Novak, J. Timothy Wootton, Daniel F. Doak, Mark Emmerson, James A. Estes, M. Timothy Tinker
2011, Ecology (92) 836-846
How best to predict the effects of perturbations to ecological communities has been a long-standing goal for both applied and basic ecology. This quest has recently been revived by new empirical data, new analysis methods, and increased computing speed, with the promise that ecologically important insights may be obtainable from...
Magnetostratigraphy and tectonic rotation of the Miocene Spanish Canyon Formation at Alvord Mountain, California
John W. Hillhouse, David M. Miller
Robert E. Reynolds, editor(s)
2011, Conference Paper, The incredible shrinking Pliocene
No abstract available....
Microhabitat use and seasonal movements of hatchery-reared and wild shortnose sturgeon in the Savannah River, South Carolina--Georgia
D.G. Trested, K.M. Ware, R. Bakal, J. Jeffery Isely
2011, Journal of Applied Ichthyology (27) 454-461
Radio and acoustic telemetry were used to monitor the seasonal movement of hatchery-reared and wild shortnose sturgeon (622-927 mm total length) in the Savannah River. Diploid, and sterile hatchery-reared shortnose sturgeon, and wild shortnose sturgeon showed apparent similar seasonal patterns of movement within the river. We were unable to detect...
