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Page 1447, results 36151 - 36175

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Not all publications have extents, not all extents are completely accurate
Space use and movements of moose in Massachusetts: implications for conservation of large mammals in a fragmented environment
David W. Wattles, Stephen DeStefano
2013, Alces (49) 65-81
Moose (Alces alces) have recently re-occupied a portion of their range in the temperate deciduous forest of the northeastern United States after a >200 year absence. In southern New England, moose encounter different forest types, more human development, and higher temperatures than in other parts of their geographic range in...
Use of fragile geologic structures as indicators of unexceeded ground motions and direct constraints on probabilistic seismic hazard analysis
J. W. Baker, John W. Whitney, Thomas C. Hanks, Norman A. Abramson, Mark P. Board
2013, BSSA (103) 1898-1911
We present a quantitative procedure for constraining probabilistic seismic hazard analysis results at a given site, based on the existence of fragile geologic structures at that site. We illustrate this procedure by analyzing precarious rocks and undamaged lithophysae at Yucca Mountain, Nevada. The key metric is the probability that the...
Extremely arsenic-rich, pH-neutral waters from the Giant Mine, Canada
D. Kirk Nordstrom
2013, Conference Paper
Roasting arsenopyrite-bearing gold ore for more than fifty years has resulted in nearly 300,000 tons of arsenic trioxide waste at the Giant mine near Yellowknife, NWT, Canada. Most of this has been stored in underground chambers sealed with concrete bulkheads. Seepages from underground drillholes and fractures contain up to 4,000...
Brant (Branta bernicla)
T.L. Lewis, David H. Ward, James S. Sedinger, Austin Reed, Dirk V. Derksen
2013, The Birds of North America
No abstract available...
4D petroleum system model of the Mississippian System in the Anadarko Basin Province, Oklahoma, Kansas, Texas, and Colorado, U.S.A.
Debra K. Higley
2013, Mountain Geologist (50) 81-98
The Upper Devonian and Lower Mississippian Woodford Shale is an important petroleum source rock for Mississippian reservoirs in the Anadarko Basin Province of Oklahoma, Kansas, Texas, and Colorado, based on results from a 4D petroleum system model of the basin. The Woodford Shale underlies Mississippian strata over most of the...
Re‐estimated effects of deep episodic slip on the occurrence and probability of great earthquakes in Cascadia
Nicholas M. Beeler, Evelyn A. Roeloffs, Wendy McCausland
2013, Bulletin of the Seismological Society of America (104) 128-144
Mazzotti and Adams (2004) estimated that rapid deep slip during typically two week long episodes beneath northern Washington and southern British Columbia increases the probability of a great Cascadia earthquake by 30–100 times relative to the probability during the ∼58 weeks between slip events. Because the...
Black bear density in Glacier National Park, Montana
Jeff B. Stetz, Katherine C. Kendall, Amy C. Macleod
2013, Wildlife Society Bulletin (38) 60-70
We report the first abundance and density estimates for American black bears (Ursus americanus) in Glacier National Park (NP),Montana, USA.We used data from 2 independent and concurrent noninvasive genetic sampling methods—hair traps and bear rubs—collected during 2004 to generate individual black bear encounter histories for use in closed population mark–recapture...
Magmatism, ash-flow tuffs, and calderas of the ignimbrite flareup in the western Nevada volcanic field, Great Basin, USA
Christopher D. Henry, David A. John
2013, Geosphere (9) 951-1008
The western Nevada volcanic field is the western third of a belt of calderas through Nevada and western Utah. Twenty-three calderas and their caldera-forming tuffs are reasonably well identified in the western Nevada volcanic field, and the presence of at least another 14 areally extensive, apparently voluminous ash-flow tuffs...
Stable stress‐drop measurements and their variability: Implications for ground‐motion prediction
Thomas C. Hanks, Annemarie S. Baltay Sundstrom, Gregory C. Beroza
2013, BSSA (103) 211-222
We estimate the arms‐stress drop, Graphic, (Hanks, 1979) using acceleration time records of 59 earthquakes from two earthquake sequences in eastern Honshu, Japan. These acceleration‐based static stress drops compare well to stress drops calculated for the same events by Baltay et al. (2011) using an empirical Green’s function (eGf) approach....
Thermal tolerance of meltwater stonefly Lednia tumana nymphs from an alpine stream in Waterton–Glacier International Peace Park, Montana, USA
Hilary G. Billman, J. Joseph Giersch, K.M. Kappenman, Clint C. Muhlfeld, Molly A. H. Webb
2013, Freshwater Science (32) 597-605
Global climate change threatens to affect negatively the structure, function, and diversity of aquatic ecosystems worldwide. In alpine systems, the thermal tolerances of stream invertebrates can be assessed to understand better the potential effects of rising ambient temperatures and continued loss of glaciers and snowpack on alpine stream ecosystems. We...
Introduction to a special section: Ecology, culture, and management of Burbot
Martin A. Stapanian, Charles P. Madenjian
2013, Transactions of the American Fisheries Society (142) 1659-1661
The Burbot Lota lota is the only truly freshwater member of the cod family (Gadidae) and one of only two species of freshwater fish that have a circumpolar range (McPhail and Lindsey 1970; McPhail and Paragamian 2000). Two subspecies of Lota lota have been documented: Lota lota maculosa, which is...
Moose habitat in Massachusetts: Assessing use at the southern edge of the range
David W. Wattles, Stephen DeStefano
2013, Alces (49) 133-147
Moose (Alces alces) have recently re-occupied a portion of their range in the temperate deciduous forest of the northeastern United States after a more than 200 year absence. In southern New England, moose are exposed to a variety of forest types, increasing development, and higher ambient temperatures as compared to...
Rapid chemical evolution of tropospheric volcanic emissions from Redoubt Volcano, Alaska, based on observations of ozone and halogen-containing gases
Cynthia A. Werner, Peter J. Kelly, Christoph Kern, T.J. Roberts, A. Aluppe
2013, Journal of Volcanology and Geothermal Research (259) 317-333
We report results from an observational and modeling study of reactive chemistry in the tropospheric plume emitted by Redoubt Volcano, Alaska. Our measurements include the first observations of Br and I degassing from an Alaskan volcano, the first study of O3 evolution in a volcanic plume, as well as the first...
Localized extinction of an arboreal desert lizard caused by habitat fragmentation
Adrian Munguia-Vega, Ricardo Rodriguez-Estrella, William W. Shaw, Melanie Culver
2013, Biological Conservation (157) 11-20
We adopted a species’ perspective for predicting extinction risk in a small, endemic, and strictly scansorial lizard (Urosaurus nigricaudus), in an old (∼60 year) and highly fragmented (8% habitat remaining) agricultural landscape from the Sonoran Desert, Mexico. We genotyped 10 microsatellite loci in 280 individuals from 11 populations in fragmented and continuous...
Chronological history of zebra and quagga mussels (Dreissenidae) in North America, 1988-2010
Amy J. Benson
2013, Book chapter, Quagga and zebra mussels: biology, impacts, and control
An unprecedented invasion began in North America in the mid-/late-1980s when two Eurasian mussel species, Dreissena polymorpha (zebra mussel) and Dreissena rostriformis bugensis (quagga mussel), became established in Laurentian Great Lakes. It is believed that Lake Erie was the initial location of establishment for both species, and within 3 years,...
Surveillance theory applied to virus detection: a case for targeted discovery
Tiffany L. Bogich, Simon J. Anthony, James D. Nichols
2013, Future Virology (8) 1201-1206
Virus detection and mathematical modeling have gone through rapid developments in the past decade. Both offer new insights into the epidemiology of infectious disease and characterization of future risk; however, modeling has not yet been applied to designing the best surveillance strategies for viral and pathogen discovery. We review recent...
Conflation and aggregation of spatial data improve predictive models for species with limited habitats: a case of the threatened yellow-billed cuckoo in Arizona, USA
Miguel L. Villarreal, Charles van Riper III, Roy E. Petrakis
2013, Applied Geography (47) 57-69
Riparian vegetation provides important wildlife habitat in the Southwestern United States, but limited distributions and spatial complexity often leads to inaccurate representation in maps used to guide conservation. We test the use of data conflation and aggregation on multiple vegetation/land-cover maps to improve the accuracy of habitat models for the...
Advances and applications of occupancy models
Larissa Bailey, Darry I. MacKenzie, James D. Nichols
2013, Methods in Ecology and Evolution (5) 1269-1279
Summary: The past decade has seen an explosion in the development and application of models aimed at estimating species occurrence and occupancy dynamics while accounting for possible non-detection or species misidentification. We discuss some recent occupancy estimation methods and the biological systems that motivated their development. Collectively, these models offer...
Descriptive and geoenvironmental model for Co-Cu-Au deposits in metasedimentary rocks
John F. Slack, Craig A. Johnson, J. Douglas Causey, Karen Lund, Klaus J. Schulz, John E. Gray, Robert G. Eppinger
John F. Slack, editor(s)
2013, Scientific Investigations Report 2010-5070-G
IntroductionThis report is a revised model for a specific type of cobalt-copper-gold (Co-Cu-Au) deposit that will be evaluated in the next U.S. Geological Survey (USGS) assessment of undiscovered mineral resources in the United States (see Ferrero and others, 2012). Emphasis is on providing an up-to-date deposit model that includes both...
Water-quality data of lakes and wetlands in the Yukon Flats, Alaska, 2007–2009
Douglas R. Halm, Nikki Guldager
2013, Open-File Report 2012-1208
Over a three-year period (2007–2009), in-situ measurements were taken and water-quality samples were collected from 111 lakes and wetlands located in the Yukon Flats, Alaska, during a U.S. Fish and Wildlife Service wetlands inventory. The U.S. Geological Survey performed the chemical analyses on the retrieved water-quality samples. Results from the...
Water column and bed-sediment core samples collected from Brownlee Reservoir near Oxbow, Oregon, 2012
Ryan L. Fosness, Jesse Naymik, Candice B. Hopkins, John F. DeWild
2013, Data Series 809
The U.S. Geological Survey, in cooperation with Idaho Power Company, collected water-column and bed-sediment core samples from eight sites in Brownlee Reservoir near Oxbow, Oregon, during May 5–7, 2012. Water-column and bed-sediment core samples were collected at each of the eight sites and analyzed for total mercury and methylmercury. Additional...
Early responses to zebra mussels in the Great Lakes: a journey from information vacuum to policy and regulation
Ronald W. Griffiths, Don W. Schloesser, William P. Kovalak
2013, Book chapter, Quagga and zebra mussels: biology, impacts, and control
Invasive species such as zebra mussels pose a threat to the economies and environments of coastal and fresh-water habitats around the world. Consequently, it is important that government policies and programs be adequate to protect these waters from invaders. This chapter documents key events that took place in the early...
Digital-image processing and image analysis of glacier ice
Joan J. Fitzpatrick
2013, Techniques and Methods 7-D1
This document provides a methodology for extracting grain statistics from 8-bit color and grayscale images of thin sections of glacier ice—a subset of physical properties measurements typically performed on ice cores. This type of analysis is most commonly used to characterize the evolution of ice-crystal size, shape, and intercrystalline spatial...
Quagga and zebra mussels: biology, impacts, and control
Thomas F. Nalepa, Donald W. Schloesser, editor(s)
2013, Book
Quagga and Zebra Mussels: Biology, Impacts, and Control, Second Edition provides a broad view of the zebra/quagga mussel issue, offering a historic perspective and up-to-date information on mussel research. Comprising 48 chapters, this second edition includes reviews of mussel morphology, physiology, and behavior. It details mussel distribution and spread in...
Sediment quality assessment in tidal salt marshes in northern California, USA: An evaluation of multiple lines of evidence approach
Hyun-Min Hwang, Robert S. Carr, Gary N. Cherr, Peter G. Green, Edwin G. Grosholz, Linda Judah, Steven G. Morgan, Scott Ogle, Vanessa K. Rashbrook, Wendy L. Rose, Swee J. Teh, Carol A. Vines, Susan L. Anderson
2013, Science of the Total Environment (454-455) 189-198
The objective of this study was to evaluate the efficacy of integrating a traditional sediment quality triad approach with selected sublethal chronic indicators in resident species in assessing sediment quality in four salt marshes in northern California, USA. These included the highly contaminated (Stege Marsh) and relatively clean (China Camp)...