Responses of salt marsh ecosystems to mosquito control management practices along the Atlantic Coast (U.S.A.)
Mary-Jane James-Pirri, R. Michael Erwin, Diann J. Prosser, Janith D. Taylor
2012, Restoration Ecology (20) 395-404
Open marsh water management (OMWM) of salt marshes modifies grid-ditched marshes by creating permanent ponds and radial ditches in the high marsh that reduce mosquito production and enhance fish predation on mosquitoes. It is preferable to using pesticides to control salt marsh mosquito production and is commonly presented as a...
History of surface displacements at the Yellowstone Caldera, Wyoming, from leveling surveys and InSAR observations, 1923-2008
Daniel Dzurisin, Charles W. Wicks, Michael P. Poland
2012, Professional Paper 1788
Modern geodetic studies of the Yellowstone caldera, Wyoming, and its extraordinary tectonic, magmatic, and hydrothermal systems date from an initial leveling survey done throughout Yellowstone National Park in 1923 by the U.S. Coast and Geodetic Survey. A repeat park-wide survey by the U.S. Geological Survey (USGS) and the University of...
Approaches in highly parameterized inversion - GENIE, a general model-independent TCP/IP run manager
Christopher T. Muffels, Willem A. Schreuder, John E. Doherty, Marinko Karanovic, Matthew J. Tonkin, Randall J. Hunt, David E. Welter
2012, Techniques and Methods 7-C6
GENIE is a model-independent suite of programs that can be used to generally distribute, manage, and execute multiple model runs via the TCP/IP infrastructure. The suite consists of a file distribution interface, a run manage, a run executer, and a routine that can be compiled as part of a program...
Stability of infinite slopes under transient partially saturated seepage conditions
Jonathan W. Godt, Başak Şener-Kaya, Ning Lu, Rex L. Baum
2012, Water Resources Research (48) 1-14
Prediction of the location and timing of rainfall‐induced shallow landslides is desired by organizations responsible for hazard management and warnings. However, hydrologic and mechanical processes in the vadose zone complicate such predictions. Infiltrating rainfall must typically pass through an unsaturated layer before reaching the irregular and usually discontinuous shallow water...
Evidence for competition at sea between Norton Sound chum salmon and Asian hatchery chum salmon
Gregory T. Ruggerone, B.A. Agler, Jennifer L. Nielsen
2012, Environmental Biology of Fishes (94) 149-163
Increasing production of hatchery salmon over the past four decades has led to concerns about possible density-dependent effects on wild Pacific salmon populations in the North Pacific Ocean. The concern arises because salmon from distant regions overlap in the ocean, and wild salmon populations having low productivity may compete for...
Tsunami hazards to U.S. coasts from giant earthquakes in Alaska
Holly F. Ryan, Roland E. von Huene, Dave Scholl, Stephen Kirby
2012, Eos, Transactions, American Geophysical Union (93) 185-186
In the aftermath of Japan's devastating 11 March 2011Mw 9.0 Tohoku earthquake and tsunami, scientists are considering whether and how a similar tsunami could be generated along the Alaskan-Aleutian subduction zone (AASZ). A tsunami triggered by an earthquake along the AASZ would cross the Pacific Ocean and cause extensive damage...
Effects of river regulation on aeolian landscapes, Colorado River, southwestern USA
Amy E. Draut
2012, Journal of Geophysical Research F: Earth Surface (117)
Connectivity between fluvial and aeolian sedimentary systems plays an important role in the physical and biological environment of dryland regions. This study examines the coupling between fluvial sand deposits and aeolian dune fields in bedrock canyons of the arid to semiarid Colorado River corridor, southwestern USA. By quantifying significant differences...
Habitat persistence for sedentary organisms in managed rivers: the case for the federally endangered dwarf wedgemussel (Alasmidonta heterodon) in the Delaware River
Kelly O. Maloney, William A. Lellis, Randy M. Bennett, Terry J. Waddle
2012, Freshwater Biology (57) 1315-1327
1. To manage the environmental flow requirements of sedentary taxa, such as mussels and aquatic insects with fixed retreats, we need a measure of habitat availability over a variety of flows (i.e. a measure of persistent habitat). Habitat suitability measures in current environmental flow assessments are measured on a ‘flow by...
Preliminary investigation of the effects of sea-level rise on groundwater levels in New Haven, Connecticut
David M. Bjerklie, John R. Mullaney, Janet Radway Stone, Brian J. Skinner, Matthew A. Ramlow
2012, Open-File Report 2012-1025
Global sea level rose about 0.56 feet (ft) (170 millimeters (mm)) during the 20th century. Since the 1960s, sea level has risen at Bridgeport, Connecticut, about 0.38 ft (115 mm), at a rate of 0.008 ft (2.56 mm + or - 0.58 mm) per year. With regional subsidence, and with...
R-SWAT-FME user's guide
Yiping Wu, Shu-Guang Liu
2012, Open-File Report 2012-1071
R program language-Soil and Water Assessment Tool-Flexible Modeling Environment (R-SWAT-FME) (Wu and Liu, 2012) is a comprehensive modeling framework that adopts an R package, Flexible Modeling Environment (FME) (Soetaert and Petzoldt, 2010), for the Soil and Water Assessment Tool (SWAT) model (Arnold and others, 1998; Neitsch and others, 2005). This...
Tidal triggering of low frequency earthquakes near Parkfield, California: Implications for fault mechanics within the brittle-ductile transition
A.M. Thomas, R. Burgmann, David R. Shelly, Nicholas M. Beeler, M.L. Rudolph
2012, Journal of Geophysical Research B: Solid Earth (117) 1-24
Studies of nonvolcanic tremor (NVT) have established the significant impact of small stress perturbations on NVT generation. Here we analyze the influence of the solid earth and ocean tides on a catalog of ∼550,000 low frequency earthquakes (LFEs) distributed along a 150 km section of the San Andreas Fault centered...
Lineament analysis of mineral areas of interest in Afghanistan
Bernard E. Hubbard, Thomas J. Mack, Allyson L. Thompson
2012, Open-File Report 2012-1048
During a preliminary mineral resource assessment of Afghanistan (Peters and others, 2007), 24 mineralized areas of interest (AOIs) were highlighted as the focus for future economic development throughout various parts of the country. In addition to located mineral resources of value, development of a viable mining industry in Afghanistan will...
MERGANSER: an empirical model to predict fish and loon mercury in New England lakes
James B. Shanley, Richard Moore, Richard A. Smith, Eric K. Miller, Alison Simcox, Neil Kamman, Diane Nacci, Keith Robinson, John M. Johnston, Melissa M. Hughes, Craig Johnston, David Evers, Kate Williams, John Graham, Susannah King
2012, Environmental Science & Technology (46) 4641-4648
MERGANSER (MERcury Geo-spatial AssessmeNtS for the New England Region) is an empirical least-squares multiple regression model using mercury (Hg) deposition and readily obtainable lake and watershed features to predict fish (fillet) and common loon (blood) Hg in New England lakes. We modeled lakes larger than 8 ha (4404 lakes), using...
Characterization of the Highway 95 Fault in lower Fortymile Wash using electrical and electromagnetic methods, Nye County, Nevada
Jamie P. Macy, Levi Kryder, Jamieson Walker
2012, Scientific Investigations Report 2012-5060
The Highway 95 Fault is a buried, roughly east-west trending growth fault at the southern extent of Yucca Mountain and Southwestern Nevada Volcanic Field. Little is known about the role of this fault in the movement of groundwater from the Yucca Mountain area to downgradient groundwater users in Amargosa Valley....
Florida Bay salinity and Everglades wetlands hydrology circa 1900 CE: A compilation of paleoecology-based statistical modeling analyses
F.E. Marshall, G.L. Wingard
2012, Open-File Report 2012-1054
Throughout the 20th century, the Greater Everglades Ecosystem of south Florida was greatly altered by human activities. Construction of water-control structures and facilities altered the natural hydrologic patterns of the south Florida region and consequently impacted the coastal ecosystem. Restoration of the Greater Everglades Ecosystem is guided by the Comprehensive...
Projected climate and vegetation changes and potential biotic effects for Fort Benning, Georgia; Fort Hood, Texas; and Fort Irwin, California
S.L. Shafer, J. Atkins, B.A. Bancroft, P. J. Bartlein, J.J. Lawler, B. Smith, C.B. Wilsey
2012, Scientific Investigations Report 2011-5099
The responses of species and ecosystems to future climate changes will present challenges for conservation and natural resource managers attempting to maintain both species populations and essential habitat. This report describes projected future changes in climate and vegetation for three study areas surrounding the military installations of Fort Benning, Georgia,...
Escherichia coli bacteria density in relation to turbidity, streamflow characteristics, and season in the Chattahoochee River near Atlanta, Georgia, October 2000 through September 2008—Description, statistical analysis, and predictive modeling
Stephen J. Lawrence
2012, Scientific Investigations Report 2012-5037
Water-based recreation—such as rafting, canoeing, and fishing—is popular among visitors to the Chattahoochee River National Recreation Area (CRNRA) in north Georgia. The CRNRA is a 48-mile reach of the Chattahoochee River upstream from Atlanta, Georgia, managed by the National Park Service (NPS). Historically, high densities of fecal-indicator bacteria have been...
Transmissivity of the Upper Floridan aquifer in Florida and parts of Georgia, South Carolina, and Alabama
Eve L. Kuniansky, Jason C. Bellino, Joann F. Dixon
2012, Scientific Investigations Map 3204
The Floridan aquifer system (FAS) covers an area of approximately 100,000 square miles in Florida and parts of Georgia, South Carolina, Alabama, and Mississippi. Groundwater wells for water supply were first drilled in the late 1800s and by the year 2000, the FAS was the primary source of drinking water...
Effects of Iron Gate Dam discharge and other factors on the survival and migration of juvenile coho salmon in the lower Klamath River, northern California, 2006-09
John Beeman, Steven Juhnke, Greg Stutzer, Katrina Wright
2012, Open-File Report 2012-1067
Current management of the Klamath River includes prescribed minimum discharges intended partly to increase survival of juvenile coho salmon during their seaward migration in the spring. To determine if fish survival was related to river discharge, we estimated apparent survival and migration rates of yearling coho salmon in the Klamath...
Migration rates and formation injectivity to determine containment time scales of sequestered carbon dioxide
Lauri Burke
2012, Open-File Report 2012-1062
Supercritical carbon dioxide exhibits highly variable behavior over a range of reservoir pressure and temperature conditions. Because geologic sequestration of supercritical carbon dioxide is targeted for subsurface injection and containment at depths ranging from approximately 3,000 to 13,000 feet, the investigation into the physical properties of this fluid can be...
USGS Hydro-Climatic Data Network 2009 (HCDN-2009)
Harry F. Lins
2012, Fact Sheet 2012-3047
The U.S. Geological Survey's (USGS) Hydro-Climatic Data Network (HCDN) is a subset of all USGS streamgages for which the streamflow primarily reflects prevailing meteorological conditions for specified years. These stations were screened to exclude sites where human activities, such as artificial diversions, storage, and other activities in the drainage basin...
Site choice among Minnesota walleye anglers: The influence of resource conditions, regulations and catch orientation on Lake Preference
Caroline Carlin, Susan A. Schroeder, David C. Fulton
2012, North American Journal of Fisheries Management (32) 299-312
Understanding angler site choice preferences is important in the management of recreational fisheries to forecast angling demand and effort. This study investigated lake choice by recreational anglers fishing for walleye Sander vitreus in Minnesota and examined how choices were influenced by lake characteristics, angler demographics, and angler catch orientation. We collected data...
Bayesian analysis of multi-state data with individual covariates for estimating genetic effects on demography
Sarah J. Converse, J. Andrew Royle, Richard P. Urbanek
2012, Journal of Ornithology (152) 561-572
Inbreeding depression is frequently a concern of managers interested in restoring endangered species. Decisions to reduce the potential for inbreeding depression by balancing genotypic contributions to reintroduced populations may exact a cost on long-term demographic performance of the population if those decisions result in reduced numbers of animals released and/or...
Parameter-expanded data augmentation for Bayesian analysis of capture-recapture models
J. Andrew Royle, Robert M. Dorazio
2012, Journal of Ornithology (152) 521-537
Data augmentation (DA) is a flexible tool for analyzing closed and open population models of capture-recapture data, especially models which include sources of hetereogeneity among individuals. The essential concept underlying DA, as we use the term, is based on adding "observations" to create a dataset composed of a known number...
Immunity to fish rhabdoviruses
Maureen K. Purcell, Kerry J. Laing, James R. Winton
2012, Viruses (4) 140-166
Members of the family Rhabdoviridae are single-stranded RNA viruses and globally important pathogens of wild and cultured fish and thus relatively well studied in their respective hosts or other model systems. Here, we review the protective immune mechanisms that fish mount in response to rhabdovirus infections. Teleost fish possess the...
