The three scales of submarine groundwater flow and discharge across passive continental margins
John F. Bratton
2010, Journal of Geology (118) 565-575
Increased study of submarine groundwater systems in recent years has provided a wealth of new data and techniques, but some ambiguity has been introduced by insufficient distinguishing of the relevant spatial scales of the phenomena studied. Submarine groundwater flow and discharge on passive continental margins can be most productively studied...
Reproductive failure of the red shiner (Cyprinella lutrensis) after exposure to an exogenous estrogen
M.M. McGree, D.L. Winkelman, N.K.M. Vieira, A.M. Vajda
2010, Canadian Journal of Fisheries and Aquatic Sciences (67) 1730-1743
Endocrine disrupting chemicals (EDCs) have been detected in surface waters worldwide and can lead to developmental and reproductive disruption in exposed fishes. In the US Great Plains, EDCs are impacting streams and rivers and may be causing adverse reproductive effects. To examine how estrogenic EDCs might affect reproductive success of...
Neotectonics and paleoseismology of the Limón and pedro miguel faults in Panamá: earthquake hazard to the Panamá canal
Thomas Rockwell, Edon Gath, Tania Gonzalez, Chris Madden, Danielle Verdugo, Caitlin Lippincott, Tim Dawson, Lewis A. Owen, Markus Fuchs, Ana Cadena, Pat Williams, Elise Weldon, Pastora Franceschi
2010, Bulletin of the Seismological Society of America (100) 3097-3129
We present new geologic, tectonic geomorphic, and geochronologic data on the slip rate, timing, and size of past surface ruptures for the right-lateral Lim??n and Pedro Miguel faults in central Panam??. These faults are part of a system of conjugate faults that accommodate the internal deformation of Panam?? resulting from...
Hematocrit and plasma osmolality values of young-of-year shortnose sturgeon following acute exposures to combinations of salinity and temperature
J.R. Ziegeweid, M.C. Black
2010, Fish Physiology and Biochemistry (36) 963-968
Little is known about the physiological capabilities of young-of-year (YOY) shortnose sturgeon. In this study, plasma osmolality and hematocrit values were measured for YOY shortnose sturgeon following 48-h exposures to 12 different combinations of salinity and temperature. Hematocrit levels varied significantly with temperature and age, and plasma osmolalities varied significantly...
Detection probability of cliff-nesting raptors during helicopter and fixed-wing aircraft surveys in western Alaska
T.L. Booms, P.F. Schempf, B. J. McCaffery, M. S. Lindberg, M.R. Fuller
2010, Journal of Raptor Research (44) 175-187
We conducted repeated aerial surveys for breeding cliff-nesting raptors on the Yukon Delta National Wildlife Refuge (YDNWR) in western Alaska to estimate detection probabilities of Gyrfalcons (Falco rusticolus), Golden Eagles (Aquila chrysaetos), Rough-legged Hawks (Buteo lagopus), and also Common Ravens (Corvus corax). Using the program PRESENCE, we modeled detection histories...
Morning ambush attacks by black-footed ferrets on emerging prairie dogs
D.A. Eads, E. Biggins, D.S. Jachowski, T.M. Livieri, J.J. Millspaugh, M. Forsberg
2010, Ethology Ecology and Evolution (22) 345-352
Black-footed ferrets (Mustela nigripes) often hunt at night, attacking normally diurnal prairie dogs (Cynomys spp.) in underground burrow systems. While monitoring black-footed ferrets in South Dakota during morning daylight hours, we observed an adult female ferret ambush a black-tailed prairie dog (C. ludovicianus) emerging from a burrow. On a neighboring...
Effects of coalbed natural gas development on fish assemblages in tributary streams of the Powder and Tongue rivers
W.N. Davis, R.G. Bramblett, A.V. Zale
2010, Freshwater Biology (55) 2612-2625
1. Extraction of coalbed natural gas (CBNG) often results in disposal of large quantities of CBNG product water, which may affect aquatic ecosystems. We evaluated the effects of CBNG development on fish assemblages in tributary streams of the Powder and Tongue rivers. We used treatment and control, impact versus reference...
Optimized autonomous space in-situ sensor web for volcano monitoring
W.-Z. Song, B. Shirazi, R. Huang, M. Xu, N. Peterson, R. LaHusen, J. Pallister, D. Dzurisin, S. Moran, M. Lisowski, S. Kedar, S. Chien, F. Webb, A. Kiely, J. Doubleday, A. Davies, D. Pieri
2010, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (3) 541-546
In response to NASA's announced requirement for Earth hazard monitoring sensor-web technology, a multidisciplinary team involving sensor-network experts (Washington State University), space scientists (JPL), and Earth scientists (USGS Cascade Volcano Observatory (CVO)), have developed a prototype of dynamic and scalable hazard monitoring sensor-web and applied it to volcano monitoring. The...
Radiocarbon dating of small terrestrial gastropod shells in North America
J.S. Pigati, J.A. Rech, J.C. Nekola
2010, Quaternary Geochronology (5) 519-532
Fossil shells of small terrestrial gastropods are commonly preserved in wetland, alluvial, loess, and glacial deposits, as well as in sediments at many archeological sites. These shells are composed largely of aragonite (CaCO3) and potentially could be used for radiocarbon dating, but they must meet two criteria before their 14C...
Latitudinal variations in Titan's methane and haze from Cassini VIMS observations
P.F. Penteado, C.A. Griffith, M.G. Tomasko, S. Engel, C. See, L. Doose, K. H. Baines, R. H. Brown, B. J. Buratti, R. Clark, P. Nicholson, Christophe Sotin
2010, Icarus (206) 352-365
We analyze observations taken with Cassini's Visual and Infrared Mapping Spectrometer (VIMS), to determine the current methane and haze latitudinal distribution between 60??S and 40??N. The methane variation was measured primarily from its absorption band at 0.61 ??m, which is optically thin enough to be sensitive to the methane abundance...
Seismic performance assessment of base-isolated safety-related nuclear structures
Y.-N. Huang, A.S. Whittaker, N. Luco
2010, Earthquake Engineering and Structural Dynamics (39) 1421-1442
Seismic or base isolation is a proven technology for reducing the effects of earthquake shaking on buildings, bridges and infrastructure. The benefit of base isolation has been presented in terms of reduced accelerations and drifts on superstructure components but never quantified in terms of either a percentage reduction in seismic...
Rehabilitation for bilateral amputation of fingers
Martin A. Stapanian, Adrienne Stapanian, Keith E. Staley
2010, American Journal of Occupational Therapy (64) 923-928
We describe reconstructive surgeries, therapy, prostheses, and adaptations for a patient who experienced bilateral amputation of all five fingers of both hands through the proximal phalanges in January 1992. The patient made considerable progress in the use of his hands in the 10 mo after amputation, including nearly a 120%...
Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties
J.G. Solum, N.C. Davatzes, D.A. Lockner
2010, Journal of Structural Geology (32) 1899-1911
The presence of clays in fault rocks influences both the mechanical and hydrologic properties of clay-bearing faults, and therefore it is critical to understand the origin of clays in fault rocks and their distributions is of great importance for defining fundamental properties of faults in the shallow crust. Field mapping...
Yield responses of ruderal plants to sucrose in invasive-dominated sagebrush steppe of the northern Great Basin
Jessi Brunson, David A. Pyke, Steven S. Perakis
2010, Restoration Ecology (18) 304-312
Restoration of sagebrush-steppe plant communities dominated by the invasive ruderals Bromus tectorum (cheatgrass) and Taeniatherum caput-medusae (medusahead) can be facilitated by adding carbon (C) to the soil, stimulating microbes to immobilize nitrogen (N) and limit inorganic N availability. Our objectives were to determine responses in (1) cheatgrass and medusahead biomass...
Catchments by major river basins in the conterminous United States: 30-Year average daily minimum temperature, 1971-2000
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-31
This tabular data set represents thecatchment-average for the 30-year (1971-2000) average daily minimum temperature in Celsius multiplied by 100 compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The source data were the United States Average Monthly or Annual Minimum Temperature, 1971 - 2000...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Average Daily Maximum Temperature, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-28
This tabular data set represents the average daily maximum temperature in Celsius multiplied by 100 for 2002, compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The source data were the Near-Real-Time High-Resolution Monthly Average Maximum/Minimum Temperature for the Conterminous United States for 2002...
A protozoal-associated epizootic impacting marine wildlife: Mass-mortality of southern sea otters (Enhydra lutris nereis) due to Sarcocystis neurona infection
M.A. Miller, P.A. Conrad, M. Harris, B. Hatfield, G. Langlois, David A. Jessup, S.L. Magargal, A.E. Packham, S. Toy-Choutka, A.C. Melli, M.A. Murray, F.M. Gulland, M.E. Grigg
2010, Veterinary Parasitology (172) 183-194
During April 2004, 40 sick and dead southern sea otters (Enhydra lutris nereis) were recovered over 18 km of coastline near Morro Bay, California. This event represented the single largest monthly spike in mortality ever recorded during 30 years of southern sea otter stranding data collection. Because of the point-source...
Redox transformations and transport of cesium and iodine (-1, 0, +5) in oxidizing and reducing zones of a sand and gravel aquifer
Patricia M. Fox, Douglas B. Kent, James A. Davis
2010, Environmental Science & Technology (44) 1940-1946
Tracer tests were performed in distinct biogeochemical zones of a sand and gravel aquifer in Cape Cod, MA, to study the redox chemistry (I) and transport (Cs, I) of cesium and iodine in a field setting. Injection of iodide (I -) into an oxic zone of the aquifer resulted in...
Numerical simulation of a low-lying barrier island's morphological response to Hurricane Katrina
C.A. Lindemer, N.G. Plant, Jack A. Puleo, D.M. Thompson, T.V. Wamsley
2010, Coastal Engineering (57) 985-995
Tropical cyclones that enter or form in the Gulf of Mexico generate storm surge and large waves that impact low-lying coastlines along the Gulf Coast. The Chandeleur Islands, located 161. km east of New Orleans, Louisiana, have endured numerous hurricanes that have passed nearby. Hurricane Katrina (landfall near Waveland MS,...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Surficial Geology
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-25
This tabular data set represents the area of surficial geology types in square meters compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The source data set is the "Digital data set describing surficial geology in the conterminous US" (Clawges and Price, 1999).The MRB_E2RF1...
Differentiating aquatic plant communities in a eutrophic river using hyperspectral and multispectral remote sensing
Y.Q. Tian, Q. Yu, M.J. Zimmerman, S. Flint, M.C. Waldron
2010, Freshwater Biology (55) 1658-1673
This study evaluates the efficacy of remote sensing technology to monitor species composition, areal extent and density of aquatic plants (macrophytes and filamentous algae) in impoundments where their presence may violate water-quality standards. Multispectral satellite (IKONOS) images and more than 500 in situ hyperspectral samples were acquired to map aquatic...
Environmental controls on drainage behavior of an ephemeral stream
K.W. Blasch, T.P.A. Ferre, J.A. Vrugt
2010, Stochastic Environmental Research and Risk Assessment (24) 1077-1087
Streambed drainage was measured at the cessation of 26 ephemeral streamflow events in Rillito Creek, Tucson, Arizona from August 2000 to June 2002 using buried time domain reflectometry (TDR) probes. An unusual drainage response was identified, which was characterized by sharp drainage from saturation to near field capacity at each...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Nutrient Ecoregions, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-13
This tabular data set represents the area of each level 3 nutrient ecoregion in square meters compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data are from the 2002 version of the U.S. Environmental Protection Agency's (USEPA) Aggregations of Level III...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: NLCD 2001 Imperviousness
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-12
This tabular data set represents the mean percent impervious surface from the Imperviousness Layer of the National Land Cover Dataset 2001, (LaMotte and Wieczorek, 2010), compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The source data set represents imperviousness for the conterminous...
Who provided maize to Chaco Canyon after the mid-12th-century drought?
Larry V. Benson
2010, Journal of Archaeological Science (37) 621-629
Between A.D. 1181 and 1200, in the early part of a climatically wet period, corn was imported to Chaco Canyon from a region outside the Chaco Halo (defined in this paper as the region between the base of the Chuska Mountains and Raton Wells). Strontium-isotope (87Sr/86Sr) analyses of 12 corn...
