Transformation through time: How wildlife disease became a focus of conservation
Milton Friend
2012, The Wildlife Professional (6) 24-27
When I began my career as an assistant waterfowl biologist in 1956, wildlife disease was not a major concern for conservation agencies. Some states— such as California, Michigan, New York, Wyoming, and Colorado— had small internal wildlife disease programs to investigate wildlife mortality events, and the U.S. Fish and Wildlife...
Threshold effects of flood duration on the vegetation and soils of the Upper Mississippi River floodplain, USA
Nathan R. De Jager, Meredith Thomsen, Yao Yin
2012, Forest Ecology and Management (270) 135-146
Most large rivers have experienced major changes in hydrology and land use over the past century, with concomitant effects on sedimentation, nutrient cycling and biodiversity. To restore and/or enhance these ecosystems, managers need to know where their efforts are most likely to succeed under current hydrologic regimes as well as...
Spatially explicit land-use and land-cover scenarios for the Great Plains of the United States
Terry L. Sohl, Benjamin M. Sleeter, Kristi Sayler, Michelle A. Bouchard, Ryan R. Reker, Stacie L. Bennett, Rachel R. Sleeter, Ronald L. Kanengieter, Zhi-Liang Zhu
2012, Agriculture, Ecosystems and Environment (153) 1-15
The Great Plains of the United States has undergone extensive land-use and land-cover change in the past 150 years, with much of the once vast native grasslands and wetlands converted to agricultural crops, and much of the unbroken prairie now heavily grazed. Future land-use change in the region could have...
Linking urbanization to the Biological Condition Gradient (BCG) for stream ecosystems in the Northeastern United States using a Bayesian network approach
Roxolana Kashuba, Gerard McMahon, Thomas F. Cuffney, Song Qian, Kenneth Reckhow, Jeroen Gerritsen, Susan Davies
2012, Scientific Investigations Report 2012-5030
Urban development alters important physical, chemical, and biological processes that define urban stream ecosystems. An approach was developed for quantifying the effects of these processes on aquatic biota, and then linking those effects to endpoints that can be used for environmental management. These complex, interacting systems are challenging to model...
Resistance to plague among black-tailed prairie dog populations
Tonie E. Rocke, Judy Williamson, Kacy R. Cobble, Joseph D. Busch, Michael F. Antolin, David M. Wagner
2012, Vector-Borne and Zoonotic Diseases (12) 111-116
In some rodent species frequently exposed to plague outbreaks caused by Yersinia pestis, resistance to the disease has evolved as a population trait. As a first step in determining if plague resistance has developed in black-tailed prairie dogs (Cynomys ludovicianus), animals captured from colonies in a plague-free region (South Dakota)...
Time series geophysical monitoring of permanganate injections and in situ chemical oxidation of PCE, OU1 area, Savage Superfund Site, Milford, NH, USA
Philip T. Harte, Thor E. Smith, John Williams, James R. Degnan
2012, Journal of Contaminant Hydrology (132) 58-74
In situ chemical oxidation (ISCO) treatment with sodium permanganate, an electrically conductive oxidant, provides a strong electrical signal for tracking of injectate transport using time series geophysical surveys including direct current (DC) resistivity and electromagnetic (EM) methods. Effective remediation is dependent upon placing the oxidant in close contact with the...
Modeling transport and deposition of the Mekong River sediment
Zuo Xue, Ruoying He, J. Paul Liu, John C. Warner
2012, Continental Shelf Research (37) 66-78
A Coupled Wave–Ocean–SedimentTransport Model was used to hindcast coastal circulation and fine sedimenttransport on the Mekong shelf in southeastern Asian in 2005. Comparisons with limited observations showed that the model simulation captured the regional patterns and temporal variability of surface wave, sea level, and suspended sediment concentration reasonably well. Significant...
Archive of single beam and swath bathymetry data collected nearshore of the Gulf Islands National Seashore, Mississippi, from West Ship Island, Mississippi, to Dauphin Island, Alabama: Methods and data report for USGS Cruises 08CCT01 and 08CCT02, July 2008, and 09CCT03 and 09CCT04, June 2009
Nancy T. DeWitt, James G. Flocks, Elizabeth A. Pendleton, Mark E. Hansen, B.J. Reynolds, Kyle W. Kelso, Dana S. Wiese, Charles R. Worley
2012, Data Series 675
During the summers of 2008 and 2009 the USGS conducted bathymetric surveys from West Ship Island, Miss., to Dauphin Island, Ala., as part of the Northern Gulf of Mexico (NGOM) Ecosystem Change and Hazard Susceptibility project. The survey area extended from the shoreline out to approximately 2 kilometers and...
Simulation of streamflows and basin-wide hydrologic variables over several climate-change scenarios, Methow River basin, Washington
Frank D. Voss, Mark C. Mastin
2012, Scientific Investigations Report 2012-5031
The purpose of this project was to demonstrate the capabilities of an existing watershed model and downscaling procedures to provide simulated hydrological data over various greenhouse gas emission scenarios for use in the Methow River framework prototype. An existing watershed model was used to simulate daily time series of streamflow...
Geologic framework for the national assessment of carbon dioxide storage resources: Bighorn Basin, Wyoming and Montana: Chapter A in Geologic framework for the national assessment of carbon dioxide storage resources
Jacob A. Covault, Mark L. Buursink, William H. Craddock, Matthew D. Merrill, Madalyn S. Blondes, Mayur A. Gosai, P.A. Freeman
Peter D. Warwick, M.D. Corum, editor(s)
2012, Open-File Report 2012-1024-A
The 2007 Energy Independence and Security Act (Public Law 110–140) directs the U.S. Geological Survey (USGS) to conduct a national assessment of potential geologic storage resources for carbon dioxide (CO2). The methodology used for the national CO2 assessment follows that of previous USGS work. The methodology is non-economic and intended...
Determination of the δ13C of dissolved inorganic carbon in water; RSIL lab code 1710
Glenda L. Singleton, Kinga Revesz, Tyler B. Coplen
2012, Techniques and Methods 10-c18
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 1710 is to present a method to determine the δ13C of dissolved inorganic carbon (DIC) of water. The DIC of water is precipitated using ammoniacal strontium chloride (SrCl2) solution to form strontium carbonate (SrCO3). The δ13C is analyzed by...
VARBOOT: A spatial bootstrap program for semivariogram uncertainty assessment
Eulogio Pardo-Iguzquiza, Ricardo A. Olea
2012, Computers & Geosciences (41) 188-198
In applied geostatistics, the semivariogram is commonly estimated from experimental data, producing an empirical semivariogram for a specified number of discrete lags. In a second stage, a model defined by a few parameters is fitted to the empirical semivariogram. As the experimental data are usually few and sparsely located, there...
Response to comments on "Productivity is a poor predictor of plant species richness"
James B. Grace, Peter B. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia R. O’Halloran, T. Michael Anderson, Jonathan D. Bakker, Cynthia S. Brown, Yvonne M. Buckley, Scott L. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia L. Jin, Kevin P. Kirkman, Johannes M.H. Knops, Kimberly J. La Pierre, John G. Lambrinos, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Suzanne M. Prover, Carly J. Stevens, Peter D. Wragg, Louie H. Yang
2012, Science (335) 1441-1441
Pan et al. claim that our results actually support a strong linear positive relationship between productivity and richness, whereas Fridley et al. contend that the data support a strong humped relationship. These responses illustrate how preoccupation with bivariate patterns distracts from a deeper understanding of the multivariate mechanisms that control...
Refining the model of barrier island formation along a paraglacial coast in the Gulf of Maine
Christopher J. Hein, Duncan M. FitzGerald, Emily A. Carruthers, Byron D. Stone, Walter A. Barnhardt, Allen M. Gontz
2012, Marine Geology (307-310) 40-57
Details of the internal architecture and local geochronology of Plum Island, the longest barrier in the Gulf of Maine, have refined our understanding of barrier island formation in paraglacial settings. Ground-penetrating radar and shallow-seismic profiles coupled with sediment cores and radiocarbon dates provide an 8000-year evolutionary history of this barrier...
A vegetation management plan for Fort Union Trading Post National Historic Site: Final report for interagency agreement number F154910005
Amy J. Symstad
2012, Report
Summary: This report provides Fort Union Trading Post National Historic Site, a small NPS unit on the border of Montana and North Dakota, a framework and reasonable tools for future vegetation management at the site in the context of probable historic, current, and desired future vegetation....
Looking skyward to study ecosystem carbon dynamics
Dennis G. Dye
2012, Eos, Transactions, American Geophysical Union (93) 141-143
Between May and October 2011 the U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) program, conducted a field campaign at the ARM Southern Great Plains site in north central Oklahoma to evaluate a new instrument for quantitative image-based monitoring of sky conditions...
All solution processed organic thin film transistor-backplane with printing technology for electrophoretic display
Myung W. Lee, C.K. Song
2012, Journal of Nanoscience and Nanotechnology (12) 3268-3271
In this study, solution processes were developed for backplane using an organic thin film transistor (OTFT) as a driving device for an electrophoretic display (EPD) panel. The processes covered not only the key device of OTFTs but also interlayer and pixel electrodes. The various materials and printing processes were adopted...
Estimating survival rates with time series of standing age‐structure data
Mark S. Udevitz, Peter J. Gogan
2012, Ecology (93) 726-732
It has long been recognized that age‐structure data contain useful information for assessing the status and dynamics of wildlife populations. For example, age‐specific survival rates can be estimated with just a single sample from the age distribution of a stable, stationary population. For a population that is...
Estimating shorebird populations during spring stopover in rice fields of the Louisiana and Texas Gulf Coastal Plain
Wayne Norling, Clinton W. Jeske, Tyler F. Thigpen, Paul C. Chadwick
2012, Waterbirds (35) 361-370
Migrating shorebird populations using approximately 2% of Louisiana and Texas Gulf Coastal rice fields were surveyed during spring migration (March–May of 1997 and 1998) using biweekly stratified random surveys conducted at 50 roadside survey points and approximately 30,000 shorebirds were observed. Shorebird counts were extrapolated and almost 1.4 million birds...
Changes in shallow groundwater quality beneath recently urbanized areas in the Memphis, Tennessee area
Jeannie R. B. Barlow, James A. Kingsbury, Richard H. Coupe
2012, Journal of the American Water Resources Association (48) 336-354
Memphis, the largest city in the state of Tennessee, and its surrounding suburbs depend on a confined aquifer, the Memphis aquifer, for drinking water. Concern over the potential for downward movement of water from an overlying shallow aquifer to the underlying Memphis aquifer provided impetus for monitoring groundwater quality within...
Identification of metapopulation dynamics among Northern Goshawks of the Alexander Archipelago, Alaska, and Coastal British Columbia
Sarah A. Sonsthagen, Erica L. McClaren, Frank I. Doyle, K. Titus, George K. Sage, Robert E. Wilson, Judy R. Gust, Sandra L. Talbot
2012, Conservation Genetics (13) 1045-1057
Northern Goshawks occupying the Alexander Archipelago, Alaska, and coastal British Columbia nest primarily in old-growth and mature forest, which results in spatial heterogeneity in the distribution of individuals across the landscape. We used microsatellite and mitochondrial data to infer genetic structure, gene flow, and fluctuations in population demography through evolutionary...
Quaternary geologic map of the Havre 1° x 2° quadrangle
David S. Compilations by Fullerton, Roger B. Colton, Charles A. Bush
2012, Open-File Report 2012-1028
The Havre quadrangle encompasses approximately 16,084 km2 (6,210 mi2). The northern boundary is the Montana/Saskatchewan (U.S./Canada) boundary. The quadrangle is in the Northern Plains physiographic province and it includes parts of the Bearpaw Mountains, the Little Rocky Mountains, and the Boundary Plateau. The primary river is the Milk River. The...
Quantity, structure, and habitat selection of natural spawning reefs by walleyes in a north temperate lake: A multiscale analysis
Joshua K. Raabe, Michael A. Bozek
2012, Transactions of the American Fisheries Society (141) 1097-1108
Spawning habitat, the cornerstone of self-sustaining, naturally reproducing walleyeSander vitreus populations, has received limited quantitative research. Our goal was to quantitatively describe the structure and quantity of natural walleye spawning habitat and evaluate potential selection of habitat in Big Crooked Lake, Wisconsin. In 2004 and 2005, we located and delineated walleye...
Progressive failure of sheeted rock slopes: the 2009–2010 Rhombus Wall rock falls in Yosemite Valley, California, USA
Greg M. Stock, Stephen J. Martel, Brian D. Collins, Edwin L. Harp
2012, Earth Surface Processes and Landforms (37) 546-561
Progressive rock-fall failures in natural rock slopes are common in many environments, but often elude detailed quantitative documentation and analysis. Here we present high-resolution photography, video, and laser scanning data that document spatial and temporal patterns of a 15-month-long sequence of at least 14 rock falls from the Rhombus Wall,...
Urbanization eases water crisis in China
Yiping Wu, Shu-Guang Liu, Chen Ji
2012, Environmental Development (2) 142-144
Socioeconomic development in China has resulted in rapid urbanization, which includes a large amount of people making the transition from rural areas to cities. Many have speculated that this mass migration may have worsened the water crisis in many parts of the country. However, this study shows that the water...
