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...
Preliminary isostatic residual gravity anomaly map of Paso Robles 30 x 60 minute quadrangle, California
D.K. McPhee, V.E. Langenheim, J. T. Watt
2011, Open-File Report 2011-1104
This isostatic residual gravity map is part of an effort to map the three-dimensional distribution of rocks in the central California Coast Ranges and will serve as a basis for modeling the shape of basins and for determining the location and geometry of faults within the Paso Robles quadrangle. Local...
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)...
Distribution of total mercury (THg) in California sea lions (Zalophus californianus) and their parasitic fauna
A.K. McGrew, T. M. O'Hara, F. Gulland, W. Van Bonn, Craig A. Stricker, L.R. Ballweber
2011, Conference Paper, The 86th Annual Meeting of the American Society of Parasitologists
No abstract available....
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...
A comparison of turtle sampling methods in a small lake in Standing Stone State Park, Overton County, Tennessee
A. Weber, James B. Layzer
2011, Journal of the Tennessee Academy of Science (86) 45-52
We used basking traps and hoop nets to sample turtles in Standing Stone Lake at 2-week intervals from May to November 2006. In alternate weeks, we conducted visual basking surveys. We collected and observed four species of turtles: spiny softshell (Apalone spinifera), northern map turtle (Graptemys geographica), pond slider (Trachernys...
Secretive marsh aird species co-eccurrences and habitat associations across the midwest, USA
Jason R. Bolenbaugh, David G. Krementz, Sarah E. Lehnen
2011, Journal of Fish and Wildlife Management (2) 49-60
Because secretive marsh birds are difficult to detect, population status and habitat use for these birds are not well known. We conducted repeated surveys for secretive marsh birds across 264 sites in the Upper Mississippi River and Great Lakes Joint Venture region to estimate abundance, occupancy, and detection probabilities during...
Federated or cached searches: providing expected performance from multiple invasive species databases
Jim Graham, Catherine S. Jarnevich, Annie Simpson, Gregory J. Newman, Thomas J. Stohlgren
2011, Frontiers of Earth Science (5) 111-119
Invasive species are a universal global problem, but the information to identify them, manage them, and prevent invasions is stored around the globe in a variety of formats. The Global Invasive Species Information Network is a consortium of organizations working toward providing seamless access to these disparate databases via the...
A model for assessing, quantifying, and correcting for index element mobility in weathering studies
Carleton R. Bern, Arthur F. White
2011, Applied Geochemistry (26) S9-S11
Evidence shows that high field strength (HFS) elements commonly used to index chemical weathering are variably mobile. This mobility may be linked to redistribution of suspended solids. A mass-balance model is presented that can quantify such redistribution without assuming immobility for any single element. Two tropical weathering profiles on quartz...
Adaptive fishway design: A framework and rationale for effective evaluations.
Theodore R. Castro-Santos
2011, Book chapter, Monitoring, Funktionskontrollen und Qualitätssicherung an Fischaufstiegsanlagen
No abstract available....
Comparative mitochondrial genetics of North American and Eurasian mergansers with an emphasis on the endangered scaly-sided merganser (Mergus squamatus)
Diana V. Solovyeva, John M. Pearce
2011, Conservation Genetics (12) 839-844
The scaly-sided merganser, Mergus squamatus, is considered one of the most threatened sea duck species in the Palearctic with limited breeding and wintering distribution in China and Russia. To provide information for future conservation efforts, we sequenced a portion of the mitochondrial (mt) DNA control region in four species...
Using stable isotopes to understand hydrochemical processes in and around a Prairie Pothole wetland in the Northern Great Plains, USA
Christopher T. Mills, Martin B. Goldhaber, Craig A. Stricker, JoAnn M. Holloway, Jean M. Morrison, Karl J. Ellefsen, Donald O. Rosenberry, Roland S. Thurston
2011, Applied Geochemistry (26) S97-S100
Millions of internally drained wetland systems in the Prairie Potholes region of the northern Great Plains (USA and Canada) provide indispensable habitat for waterfowl and a host of other ecosystem services. The hydrochemistry of these systems is complex and a crucial control on wetland function, flora and fauna. Wetland waters...
Preliminary geologic map of the Bowen Mountain quadrangle, Grand and Jackson Counties, Colorado
J. C. Cole, William A. Braddock, Theodore R. Brandt
2011, Open-File Report 2011-1111
The map shows the geology of an alpine region in the southern Never Summer Mountains, including parts of the Never Summer Wilderness Area, the Bowen Gulch Protection Area, and the Arapaho National Forest. The area includes Proterozoic crystalline rocks in fault contact with folded and overturned Paleozoic and Mesozoic sedimentary...
Demographics and run timing of adult Lost River (Deltistes luxatus) and short nose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, 2009
David A. Hewitt, Brian S. Hayes, Eric C. Janney, Alta C. Harris, Justin P. Koller, Mark A. Johnson
2011, Open-File Report 2011-1088
Data from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their...
Process-based model predictions of hurricane induced morphodynamic change on low-lying barrier islands
Nathaniel G. Plant, David M. Thompson, Edwin Elias
Ping Wang, Julie D. Rosati, Tiffany M. Roberts, editor(s)
2011, Conference Paper, Proceedings of the Coastal Sediments 2011
Using Delft3D, a Chandeleur Island model was constructed to examine the sediment-transport patterns and morphodynamic change caused by Hurricane Katrina and similar storm events. The model setup included a coarse Gulf of Mexico domain and a nested finer-resolution Chandeleur Island domain. The finer-resolution domain resolved morphodynamic processes driven by storms...
Feeding ecology and energetics
Steven R. Chipps, Brian D. S. Graeb
Bruce A. Barton, editor(s)
2011, Book chapter, Biology, management, and culture of walleye and sauger
Successful management of walleye and sauger populations often requires a detailed knowledge of prey resources. As with many fishes, diets of juvenile Sander spp. are often different than those of adult fish and can have important implications for growth and survival. Similarly, spatial and temporal variation in diet composition can contribute to...
The role of critical zone processes in the evolution of the Prairie Pothole Region wetlands
Martin B. Goldhaber, Christopher T. Mills, Craig A. Stricker, Jean M. Morrison
2011, Applied Geochemistry (26) S32-S35
The Prairie Pothole Region, which occupies 900,000 km2 of the north central USA and south central Canada, is one of the most important ecosystems in North America. It is characterized by millions of small wetlands whose chemistry is highly variable over short distances. The study involved the geochemistry of surface...
The Haleakala Argentine ant project: A synthesis of past research and prospects for the future
Paul Krushelnycky, William Haines, Lloyd Loope, Ellen Van Gelder
2011, Technical Report 173
1. The Haleakala Argentine Ant Project is an ongoing effort to study the ecology of the invasive Argentine ant in the park, and if possible to develop a strategy to control this destructive species. 2. Past research has demonstrated that the Argentine ant causes very significant impacts on native arthropods...
Misidentification of freshwater mussel species (Bivalvia:Unionidae): Contributing factors, management implications, and potential solutions
Colin P. Shea, James T. Peterson, Jason M. Wisniewski, Nathan A. Johnson
2011, Journal of the North American Benthological Society (30) 446-458
Surveys of freshwater mussel populations are used frequently to inform conservation decisions by providing information about the status and distribution of species. It is generally accepted that not all mussels or species are collected during surveys, and incomplete detection of individuals and species can bias data and can affect inferences....
The distribution and abundance ofa nuisance native alga, Didymosphenia geminata,in streams of Glacier National Park: Climate drivers and management implications
Clint C. Muhlfeld, Leslie A. Jones, E. William Schweiger, Isabel W. Ashton, Loren L. Bahls
2011, Park Science (28) 88-91
Didymosphenia geminata (didymo) is a freshwater alga native to North America, including Glacier National Park, Montana. It has long been considered a cold-water species, but has recently spread to lower latitudes and warmer waters, and increasingly forms large blooms that cover streambeds. We used a comprehensive monitoring data set from...
Interactions of raptors and Lesser Prairie-Chickens at leks in the Texas Southern High Plains
Adam C. Behney, Clint W. Boal, Heather A. Whitlaw, Duane R. Lucia
2011, Wilson Journal of Ornithology (123) 332-338
We examined behavioral interactions of raptors, Chihuahuan Ravens (Corvus cryptoleucus), and Lesser Prairie-Chickens (Tympanuchus pallidicinctus) at leks in the Texas Southern High Plains. Northern Harriers (Circus cyaneus) and Swainson's Hawks (Buteo swainsoni) were the most common raptors observed at leks. Only 15 of 61 (25%) raptor encounters at leks (0.09/hr)...
