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Page 1943, results 48551 - 48575

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Not all publications have extents, not all extents are completely accurate
Trends and drivers of marine debris on the Atlantic coast of the United States 1997-2007
C. A. Ribic, S.B. Sheavly, D.J. Rugg, Eric S. Erdmann
2010, Marine Pollution Bulletin (60) 1231-1242
For the first time, we documented regional differences in amounts and long-term trends of marine debris along the US Atlantic coast. The Southeast Atlantic had low land-based and general-source debris loads as well as no increases despite a 19% increase in coastal population. The Northeast (8% population increase) also had...
Life history and demographics of the endangered birdwing pearlymussel (Lemiox rimosus) (Bivalvia: Unionidae)
Jess W. Jones, Richard J. Neves, Steven A. Ahlstedt, Don Hubbs, Matthew Johnson, Hua Dan, Brett J.K. Ostby
2010, American Midland Naturalist (163) 335-350
The life history and population demography of the endangered birdwing pearlymussel (Lemiox rimosus) were studied in the Clinch and Duck rivers, Tennessee. Reproducing populations of L. rimosus now occur only in the Clinch, Duck and Powell rivers, as the species is considered extirpated from the remaining portions of its...
Assessment of multiple sources of anthropogenic and natural chemical inputs to a morphologically complex basin, Lake Mead, USA
Michael R. Rosen, P. C. Van Metre
2010, Palaeogeography, Palaeoclimatology, Palaeoecology (294) 30-43
Lakes with complex morphologies and with different geologic and land-use characteristics in their sub-watersheds could have large differences in natural and anthropogenic chemical inputs to sub-basins in the lake. Lake Mead in southern Nevada and northern Arizona, USA, is one such lake. To assess variations in chemical histories from 1935...
Recruitment in a Colorado population of big brown bats: Breeding probabilities, litter size, and first-year survival
T. J. O'Shea, L.E. Ellison, D.J. Neubaum, M.A. Neubaum, C.A. Reynolds, R. A. Bowen
2010, Journal of Mammalogy (91) 418-428
We used markrecapture estimation techniques and radiography to test hypotheses about 3 important aspects of recruitment in big brown bats (Eptesicus fuscus) in Fort Collins, Colorado: adult breeding probabilities, litter size, and 1st-year survival of young. We marked 2,968 females with passive integrated transponder (PIT) tags at multiple sites during...
Effect of concentration of dispersed organic matter on optical maturity parameters: Interlaboratory results of the organic matter concentration working group of the ICCP.
J.G. Mendonca Filho, C.V. Araujo, A.G. Borrego, A. Cook, D. Flores, P. Hackley, J.C. Hower, M.L. Kern, K. Kommeren, J. Kus, Maria Mastalerz, J.O. Mendonca, T.R. Menezes, J. Newman, P. Ranasinghe, I.V.A.F. Souza, I. Suarez-Ruiz, Y. Ujiie
2010, International Journal of Coal Geology (84) 154-165
The main objective of this work was to study the effect of the kerogen isolation procedures on maturity parameters of organic matter using optical microscopes. This work represents the results of the Organic Matter Concentration Working Group (OMCWG) of the International Committee for Coal and Organic Petrology (ICCP) during the...
Pathological and immunological responses associated with differential survival of Chinook salmon following Renibacterium salmoninarum challenge
David C. Metzger, Diane G. Elliott, Andrew Wargo, Linda K. Park, Maureen K. Purcell
2010, Diseases of Aquatic Organisms (90) 31-41
Chinook salmon Oncorhynchus tshawytscha are highly susceptible to Renibacterium salmoninarum, the causative agent of bacterial kidney disease (BKD). Previously we demonstrated that introduced Chinook salmon from Lake Michigan, Wisconsin (WI), USA, have higher survival following R. salmoninarum challenge relative to the progenitor stock from Green River, Washington, USA. In the...
Computer algorithm for analyzing and processing borehole strainmeter data
John O. Langbein
2010, Computers & Geosciences (36) 611-619
The newly installed Plate Boundary Observatory (PBO) strainmeters record signals from tectonic activity, Earth tides, and atmospheric pressure. Important information about tectonic processes may occur at amplitudes at and below tidal strains and pressure loading. If incorrect assumptions are made regarding the background noise in the strain data, then the...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Ecoregions
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-09
This tabular data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set is Level III Ecoregions of the Continental United States (U.S. Environmental...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: STATSGO Soil Characteristics
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-26
This tabular data set represents estimated soil variables compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). The variables included are cation exchange capacity, percent calcium carbonate, slope, water-table depth, soil thickness, hydrologic soil group, soil erodibility (k-factor), permeability, average water capacity, bulk density,...
Attributes for MRB_E2RF1 Catchments by Major Rivers Basins in the Conterminous United States: Total Precipitation, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-20
This tabular data set represents the catchment-average total precipitation in millimeters 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 Monthly High-Resolution Precipitation Climate Data Set for the Conterminous United States (2002) raster...
Reptilian prey of the sonora mud turtle (Kinosternon sonoriense) with comments on saurophagy and ophiophagy in North American Turtles
J. Lovich, C. Drost, A.J. Monatesti, D. Casper, D.A. Wood, M. Girard
2010, Southwestern Naturalist (55) 135-138
We detected evidence of predation by the Sonora mud turtle (Kinosternon sonoriense) on the Arizona alligator lizard (Elgaria kingii nobilis) and the ground snake (Sonora semiannulata) at Montezuma Well, Yavapai County, Arizona. Lizards have not been reported in the diet of K. sonoriense, and saurophagy is rare in turtles of...
Mid-Piacensian mean annual sea surface temperature: an analysis for data-model comparisons
Harry J. Dowsett, Marci M. Robinson, Kevin M. Foley, Danielle K. Stoll
2010, Stratigraphy (7) 189-198
Numerical models of the global climate system are the primary tools used to understand and project climate disruptions in the form of future global warming. The Pliocene has been identified as the closest, albeit imperfect, analog to climate conditions expected for the end of this century, making an independent data...
Geologie study off gravels of the Agua Fria River, Phoenix, AZ
W. H. Langer, E. Dewitt, D.T. Adams, T. O’Briens
2010, Mining Engineering (62) 27-31
The annual consumption of sand and gravel aggregate in 2006 in the Phoenix, AZ metropolitan area was about 76 Mt (84 million st) (USGS, 2009), or about 18 t (20 st) per capita. Quaternary alluvial deposits in the modern stream channel of the Agua Fria River west of Phoenix are...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Normalized Atmospheric Deposition for 2002, Total Inorganic Nitrogen
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-27
This tabular data set represents the average normalized atmospheric (wet) deposition, in kilograms per square kilometer multiplied by 100, of Total Inorganic Nitrogen for the year 2002 compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). Estimates of Total Inorganic Nitrogen deposition are based...
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: Normalized Atmospheric Deposition for 2002, Ammonium (NH4)
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-14
This tabular data set represents the average normalized (wet) deposition, in kilograms per square kilometer multiplied by 100, of ammonium (NH4) for the year 2002 compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). Estimates of NH4 deposition are based on National Atmospheric Deposition...
Using spatial, seasonal, and diel drift patterns of larval Lost River suckers Deltistes luxatus (Cypriniformes: Catostomidae) and shortnose suckers Chasmistes brevirostris (Cypriniformes: Catostomidae) to help identify a site for a water withdrawal structure on the Williamson River, Oregon
Craig M. Ellsworth, Torrey J. Tyler, Scott P. VanderKooi
2010, Environmental Biology of Fishes (89) 47-57
A small irrigation diversion dam near Chiloquin, Oregon, was removed and replaced with a pump station to improve fish passage for Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) entering the Sprague River on their spawning migrations. During the developmental phase of the pump station, a need was...
Silica in a Mars analog environment: Ka u Desert, Kilauea Volcano, Hawaii
K.D. Seelos, R. E. Arvidson, B.L. Jolliff, S.M. Chemtob, R.V. Morris, D. W. Ming, G.A. Swayze
2010, Journal of Geophysical Research E: Planets (115)
Airborne Visible/Near-Infrared Imaging Spectrometer (AVIRIS) data acquired over the Ka u Desert are atmospherically corrected to ground reflectance and used to identify the mineralogic components of relatively young basaltic materials, including 250-700 and 200-400 year old lava flows, 1971 and 1974 flows, ash deposits, and solfatara incrustations. To provide context,...
The effect of channelization on floodplain sediment deposition and subsidence along the Pocomoke River, Maryland
D.E. Kroes, C.R. Hupp
2010, Journal of the American Water Resources Association (46) 686-699
The nontidal Pocomoke River was intensively ditched and channelized by the mid-1900s. In response to channelization; channel incision, head-cut erosion, and spoil bank perforation have occurred in this previously nonalluvial system. Six sites were selected for study of floodplain sediment dynamics in relation to channel condition. Short- and long-term sediment...
On the resolution of shallow mantle viscosity structure using post-earthquake relaxation data: Application to the 1999 Hector Mine, California, earthquake
Fred F. Pollitz, Wayne R. Thatcher
2010, Journal of Geophysical Research B: Solid Earth
Most models of lower crust/mantle viscosity inferred from postearthquake relaxation assume one or two uniform-viscosity layers. A few existing models possess apparently significant radially variable viscosity structure in the shallow mantle (e.g., the upper 200 km), but the resolution of such variations is not clear. We use a geophysical inverse...
A practitioner's tool for assessing glide crack activity
Jordy Hendrikx, Erich H. Peitzsch, Daniel B. Fagre
2010, Conference Paper, Proceedings, 2010 International Snow Science Workshop
Glide cracks can result in full-depth glide avalanche release. Avalanches from glide cracks are notoriously difficult to forecast, but are a reoccurring problem in a number of different avalanche forecasting programs across a range of snow climates. Despite this, there is no consensus for how to best manage, mitigate, or...
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...
D is for diamond
W. H. Langer
2010, Aggregates Manager (15) 40-40
Real diamonds are a girl's best friend, but synthetic ones opened up a whole new world for granite....