Estimating site occupancy rates for aquatic plants using spatial sub-sampling designs when detection probabilities are less than one
R. M. Nielson, B. R. Gray, L.L. McDonald, P.J. Heglund
2011, Aquatic Botany (95) 221-225
Estimation of site occupancy rates when detection probabilities are <1 is well established in wildlife science. Data from multiple visits to a sample of sites are used to estimate detection probabilities and the proportion of sites occupied by focal species. In this article we describe how site occupancy methods can...
Projected status of the Pacific walrus (Odobenus rosmarus divergens) in the twenty-first century
Chadwick V. Jay, Bruce G. Marcot, David C. Douglas
2011, Polar Biology (34) 1065-1084
Extensive and rapid losses of sea ice in the Arctic have raised conservation concerns for the Pacific walrus (Odobenus rosmarus divergens), a large pinniped inhabiting arctic and subarctic continental shelf waters of the Chukchi and Bering seas. We developed a Bayesian network model to integrate potential effects of...
An individual and a sex odor signature in kittiwakes? Study of the semiochemical composition of preen secretion and preen down feathers
Sarah Leclaire, Thomas Merkling, C. Raynaud, Geraldine Giacinti, J.-M. Bessiere, Scott A. Hatch, Etienne Danchin
2011, Naturwissenschaften (98) 615-624
The importance of olfaction in birds' social behavior has long been denied. Avian chemical signaling has thus been relatively unexplored. The black-legged kittiwake provides a particularly appropriate model for investigating this topic. Kittiwakes preferentially mate with genetically dissimilar individuals, but the cues used to assess genetic characteristics remain unknown. As...
Avian influenza shedding patterns in waterfowl: implications for surveillance, environmental transmission, and disease spread
Viviane Henaux, Michael D. Samuel
2011, Journal of Wildlife Diseases (47) 566-578
Despite the recognized importance of fecal/oral transmission of low pathogenic avian influenza (LPAI) via contaminated wetlands, little is known about the length, quantity, or route of AI virus shed by wild waterfowl. We used published laboratory challenge studies to evaluate the length and quantity of low pathogenic (LP) and highly...
Newer views of the Moon: Comparing spectra from Clementine and the Moon Mineralogy Mapper
Georgiana Y. Kramer, Sebastian Besse, Jeff Nettles, Jean-Philippe Combe, Roger N. Clark, Carle M. Pieters, Matthew Staid, Joseph Boardman, Robert Green, Thomas B. McCord, Erik Malaret, James W. Head III
2011, Journal of Geophysical Research (116) 1-11
The Moon Mineralogy Mapper (M3) provided the first global hyperspectral data of the lunar surface in 85 bands from 460 to 2980 nm. The Clementine mission provided the first global multispectral maps the lunar surface in 11 spectral bands across the ultraviolet-visible (UV-VIS) and near-infrared (NIR). In an effort to...
Isotopic tracing of perchlorate in the environment
Neil C. Sturchio, J.K. Bohlke, Baohua Gu, Paul B. Hatzinger, W. Andrew Jackson
Mark Baskaran, editor(s)
2011, Book chapter, Handbook of environmental isotope geochemistry
Isotopic measurements can be used for tracing the sources and behavior of environmental contaminants. Perchlorate (ClO 4 − ) has been detected widely in groundwater, soils, fertilizers, plants, milk, and human urine since 1997, when improved analytical methods for analyzing ClO 4 −concentration became available for routine use....
Loading of the San Andreas fault by flood-induced rupture of faults beneath the Salton Sea
Daniel S. Brothers, Debi Kilb, Karen Luttrell, Neal W. Driscoll, Graham Kent
2011, Nature Geoscience (4) 486-492
The southern San Andreas fault has not experienced a large earthquake for approximately 300 years, yet the previous five earthquakes occurred at ~180-year intervals. Large strike-slip faults are often segmented by lateral stepover zones. Movement on smaller faults within a stepover zone could perturb the main fault segments and potentially trigger...
Population genetic structure of clinical and environmental isolates of Blastomyces dermatitidis based on 27 polymorphic microsatellite markers
Jennifer K. Meece, Jennifer L. Anderson, Matthew C. Fisher, Daniel A. Henk, Brian L. Sloss, Kurt D. Reed
2011, Applied and Environmental Microbiology (77) 5123-5131
Blastomyces dermatitidis, a thermally dimorphic fungus, is the etiologic agent of North American blastomycosis. Clinical presentation is varied, ranging from silent infections to fulminant respiratory disease and dissemination to skin and other sites. Exploration of the population genetic structure of B. dermatitidis would improve our knowledge...
Interactions with other large herbivores: Chapter 9
Jonathan A. Jenks, David M. Leslie Jr.
2011, Book chapter, Biology and management of white-tailed deer
No abstract available....
A loess–paleosol record of climate and glacial history over the past two glacial–interglacial cycles (~ 150 ka), southern Jackson Hole, Wyoming
Kenneth L. Pierce, Daniel R. Muhs, Maynard A. Fosberg, Shannon A. Mahan, Joseph G. Rosenbaum, Joseph M. Licciardi, Milan J. Pavich
2011, Quaternary Research (76) 119-141
Loess accumulated on a Bull Lake outwash terrace of Marine Oxygen Isotope Stage 6 (MIS 6) age in southern Jackson Hole, Wyoming. The 9 m section displays eight intervals of loess deposition (Loess 1 to Loess 8, oldest), each followed by soil development. Our age-depth model is constrained by thermoluminescence,...
An evaluation of the science needs to inform decisions on Outer Continental Shelf energy development in the Chukchi and Beaufort Seas, Alaska
Leslie Holland-Bartels, Brenda Pierce
2011, Circular 1370
The U. S. Geological Survey (USGS) was asked to conduct an initial, independent evaluation of the science needs that would inform the Administration's consideration of the right places and the right ways in which to develop oil and gas resources in the Arctic Outer Continental Shelf (OCS), particularly focused on...
An evaluation of the science needs to inform decisions on Outer Continental Shelf energy development in the Chukchi and Beaufort Seas, Alaska
Leslie Holland-Bartels, Brenda Pierce
2011, Fact Sheet 2011-3048
On March 31, 2010, Secretary of the Interior Ken Salazar announced a national strategy for Outer Continental Shelf (OCS) oil and gas development. In that announcement, the Administration outlined a three-pronged approach (U.S. Department of the Interior, 2010a): Development: "...expand development and production throughout the Gulf of Mexico, including resource-rich...
Characterizing contaminant concentrations with depth by using the USGS well profiler in Oklahoma, 2003-9
S. Jerrod Smith, Carol Becker
2011, Fact Sheet 2011-3054
Since 2003, the U.S. Geological Survey (USGS) Oklahoma Water Science Center has been using the USGS well profiler to characterize changes in water contribution and contaminant concentrations with depth in pumping public-supply wells in selected aquifers. The tools and methods associated with the well profiler, which were first developed by...
USGS St. Petersburg Coastal and Marine Science Center--Research activities in the U.S. Virgin Islands
Matthew Cimitile
2011, Fact Sheet 2011-3071
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center in Florida investigates earth-science processes related to coastal and marine environments as well as to societal implications of natural hazards, resource sustainability, and environmental change. The Center is conducting ongoing research in and around the U.S. Virgin Islands...
Comparative health assessment of western Pacific leatherback turtles (Dermochelys coriacea) foraging off the coast of California, 2005-2007
Heather S. Harris, Scott R. Benson, Kirsten V. Gilardi, Robert H. Poppenga, Thierry M. Work, Peter H. Dutton, Jonna A.K. Mazet
2011, Journal of Wildlife Diseases (47) 321-337
Leatherback turtles (Dermochelys coriacea) are critically endangered, primarily threatened by the overharvesting of eggs, fisheries entanglement, and coastal development. The Pacific leatherback population has experienced a catastrophic decline over the past two decades. Leatherbacks foraging off the coast of California are part of a distinct Western Pacific breeding stock that...
Cold-induced mortality of invasive Burmese pythons in south Florida
Frank J. Mazzotti, Michael S. Cherkiss, Kristen M. Hart, Ray W. Snow, Michael R. Rochford, Michael E. Dorcas, Robert N. Reed
2011, Biological Invasions (13) 143-151
A recent record cold spell in southern Florida (2–11 January 2010) provided an opportunity to evaluate responses of an established population of Burmese pythons (Python molurus bivittatus) to a prolonged period of unusually cold weather. We observed behavior, characterized thermal biology, determined fate of radio-telemetered (n = 10)...
Structure and dynamics of an upland old- growth forest at Redwood National Park, California
Philip J. van Mantgem, John D. Stuart
2011, Conference Paper, Proceedings of the Coast Redwood Forests in a Changing California: a symposium for scientists and managers
Many current redwood forest management targets are based on old-growth conditions, so it is critical that we understand the variability and range of conditions that constitute these forests. Here we present information on the structure and dynamics from six one-hectare forest monitoring plots in an upland old-growth forest at Redwood...
Common Grackle breeding on bottomland forest restoration sites
Daniel J. Twedt
2011, Southeastern Naturalist (10) 1-10
Two of 36 forest restoration sites in the Mississippi Alluvial Valley surveyed from 2000-2002 harbored Quiscalus quiscula (Common Grackle). Occupied sites were in less-forested landscapes and had sparser understory vegetation due to flooding. Probability of daily nest survival (0.9077) of 169 Common Grackle nests was influenced by nest-placement, temporal, and...
Improved earthquake monitoring in the central and eastern United States in support of seismic assessments for critical facilities
William S. Leith, Harley M. Benz, Robert B. Herrmann
2011, Open-File Report 2011-1101
Evaluation of seismic monitoring capabilities in the central and eastern United States for critical facilities - including nuclear powerplants - focused on specific improvements to understand better the seismic hazards in the region. The report is not an assessment of seismic safety at nuclear plants. To accomplish the evaluation and...
Estimation of annual suspended-sediment fluxes, 1931-95, and evaluation of geomorphic changes, 1950-2010, in the Arkansas River near Tulsa, Oklahoma
Jason M. Lewis, S. Jerrod Smith, Stephanie D. Buck, Scott A. Strong
2011, Scientific Investigations Report 2011-5091
An understanding of fluvial sediment transport and changing channel morphology can assist planners in making responsible decisions with future riverine development or restoration projects. Sediment rating curves can serve as simple models and can provide predictive tools to estimate annual sediment fluxes. Sediment flux models can aid in the design...
Discharge and sediment concentration in the Bill Williams River and turbidity in Lake Havasu during and following high releases from Alamo Dam, Arizona, in March and April 2010
Stephen M. Wiele, Jamie P. Macy, Hugh L. Darling, Robert J. Hart, Andrew B. Hautzinger
2011, Open-File Report 2011-1129
Discharges higher than are typically released from Alamo Dam in west-central Arizona were planned and released in 2005, 2006, 2007, 2008 and 2010 to study the effects of these releases on the Bill Williams River. The Bill Williams River Wildlife Refuge is located above the mouth of the Bill Williams...
Watershed regressions for pesticides (WARP) for predicting atrazine concentration in Corn Belt streams
Wesley W. Stone, Robert J. Gilliom
2011, Open-File Report 2011-1141
Watershed Regressions for Pesticides (WARP) models, previously developed for atrazine at the national scale, can be improved for application to the U.S. Corn Belt region by developing region-specific models that include important watershed characteristics that are influential in predicting atrazine concentration statistics within the Corn Belt. WARP models for the...
Seasonal dynamics of CO2 profiles across a soil chronosequence, Santa Cruz, California
Marjorie S. Schulz, David A. Stonestrom, Guntram von Kiparski, Corey R. Lawrence, C.A. Masiello, Arthur F. White, John Fitzpatrick
2011, Applied Geochemistry (26) S132-S134
Concentrations of CO2 in soil atmosphere and CO2 efflux were measured across a marine terrace soil chronosequence near Santa Cruz, California. Soil development, specifically the formation of an argillic horizon, has created a two-tier soil gas profile in the older terrace soils. The soil above the...
Simulation of the effects of Devils Lake outlet alternatives on future lake levels and downstream water quality in the Sheyenne River and Red River of the North
Aldo V. Vecchia
2011, Scientific Investigations Report 2011-5050
Since 1992, Devils Lake in northeastern North Dakota has risen nearly 30 feet, destroying hundreds of homes, inundating thousands of acres of productive farmland, and costing more than $1 billion for road raises, levee construction, and other flood mitigation measures. In 2011, the lake level is expected to rise at...
Albuquerque Seismological Laboratory--50 years of global seismology
C. R. Hutt, Jon Peterson, Lind Gee, John Derr, Adam Ringler, David Wilson
2011, Fact Sheet 2011-3065
The U.S. Geological Survey Albuquerque Seismological Laboratory is about 15 miles southeast of Albuquerque on the Pueblo of Isleta, adjacent to Kirtland Air Force Base. The Albuquerque Seismological Laboratory supports the Global Seismographic Network Program and the Advanced National Seismic System through the installation, operation, and maintenance of seismic stations...
