Florida Keys
Barbara H Lidz
2011, Book chapter, Encyclopedia of modern coral reefs: Structure, form and process
No abstract available....
Valuation of rangeland ecosystem services
W.R. Gascoigne
2011, Conference Paper, California Rangelands Policy and Research Dialogue
Economic valuation lends itself well to the anthropocentric orientation of ecosystem services. An economic perspective on ecosystems portrays them as natural assets providing a flow of goods and services valuable to individuals and society collectively. A few examples include the purification of drinking water, reduced risk from flooding and other...
Landsat imagery: a unique resource
H. Miller, N. Sexton, L. Koontz
2011, Report
Landsat satellites provide high-quality, multi-spectral imagery of the surface of the Earth. These moderate-resolution, remotely sensed images are not just pictures, but contain many layers of data collected at different points along the visible and invisible light spectrum. These data can be manipulated to reveal what the Earth’s surface looks...
Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models
Dale M. Robertson, David A. Saad
2011, Journal of the American Water Resources Association (47) 1011-1033
Nutrient input to the Laurentian Great Lakes continues to cause problems with eutrophication. To reduce the extent and severity of these problems, target nutrient loads were established and Total Maximum Daily Loads are being developed for many tributaries. Without detailed loading information it is difficult to determine if the targets...
Chapter 1: Study area description
Mary M. Rowland, Matthias Leu
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
The boundary for the Wyoming Basins Ecoregional Assessment (WBEA) was largely determined by the co-occurrence of some of the largest tracts of intact sagebrush (Artemisia spp.) remaining in the western United States with areas of increasing resource extraction. The WBEA area includes two ecoregions in their entirety, Wyoming Basins and...
Chapter 2: Sagebrush-associated species of conservation concern
Mary M. Rowland, Lowell H. Suring, Matthias Leu, Steven T. Knick, Michael J. Wisdom
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Selection of species of concern is a critical early step in conducting broad-scale ecological assessments for conservation planning and management. Many criteria can be used to guide this selection, such as conservation status, existing knowledge base, and association with plant communities of interest. In conducting the Wyoming Basins Ecoregional Assessment...
Identifying biogeochemical processes beneath stormwater infiltration ponds in support of a new best management practice for groundwater protection
Andrew M. O’Reilly, Ni-Bin Chang, Martin P. Wanielista, Zhemin Xuan
Mario Schirmer, Eduard Hoehn, Tobias Vogt, editor(s)
2011, Conference Paper, GQ10 : Groundwater quality management in a rapidly changing world : proceedings of the seventh International groundwater quality conference held in Zurich, Switzerland, 13-18 June 2010
When applying a stormwater infiltration pond best management practice (BMP) for protecting the quality of underlying groundwater, a common constituent of concern is nitrate. Two stormwater infiltration ponds, the SO and HT ponds, in central Florida, USA, were monitored. A temporal succession of biogeochemical processes was identified beneath the SO...
2011 statistical abstract of the United States
Joseph M. Krisanda
2011, Report
<p>The <i>Statistical Abstract of the United States</i>, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States.</p> <br/> <p>Use the Abstract as a convenient volume for statistical reference, and as a guide to sources of more information both...
Diet composition and feeding patterns of adult shovelnose sturgeon (Scaphirhynchus platorynchus) in the lower Platte River, Nebraska, USA
T. Rapp, D. A. Shuman, B. D. S. Graeb, S. R. Chipps, E. J. Peters
2011, Journal of Applied Ichthyology (27) 351-355
Two-hundred and seven adult shovelnose sturgeon ranging from 450 to 718 mm in length were sampled from June to October 2001 and May to July 2002 to determine diet composition and feeding patterns in the lower Platte River. Shovelnose sturgeon fed primarily upon aquatic insect larvae and nymphs (>99% composition by...
Episodic growth of a Late Cretaceous and Paleogene intrusive complex of pegmatitic leucogranite, Ruby Mountains core complex, Nevada, USA
Keith A. Howard, J. L. Wooden, C. G. Barnes, W. R. Premo, A.W. Snoke, S.-Y. Lee
2011, Geosphere (7) 1220-1248
Gneissic pegmatitic leucogranite forms a dominant component (>600 km3) of the midcrustal infrastructure of the Ruby Mountains–East Humboldt Range core complex (Nevada, USA), and was assembled and modified episodically into a batholithic volume by myriad small intrusions from ca. 92 to 29 Ma. This injection complex consists of deformed sheets...
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1WS
J. W. Brakebill, S.E. Terziotti
2011, Report
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions correspond with the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program Major River Basin (MRB) study units 2, 3, 4, 5, and 7 (Preston...
Isolation of microsatellite loci from the lesser long-nosed bat (Leptonycteris yerbuenae)
Judith Ramirez, A. Munguia-Vega, Melanie Culver
2011, Conservation Genetics Resources (3) 327-329
Leptonycteris yerbabuenae is a nectarivore (subfamily: Glossophaginae, family: Phyllostomidae), is found from southern Arizona/southwestern New Mexico to southern Mexico including the Baja California peninsula (Ceballos et al.1997; Cockrum 1991).Leptonycteris yerbabuenae is listed as endangered in the United States (Shull 1988) and threatened in Mexico (SEMARNAT 2002). They migrate up to...
Methodology for prediction of rip currents using a three-dimensional numerical, coupled, wave current model
George Voulgaris, Nirnimesh Kumar, John C. Warner
Stephen Leatherman, John Fletemeyer, editor(s)
2011, Conference Paper, Rip currents: Beach safety, physical oceanography, and wave modeling
Rip current currents constitute one of the most common hazards in the nearshore that threaten the lives of the unaware public that makes recreational use of the coastal zone. Society responds to this danger through a number of measures that include: (a) the deployment of trained lifeguards; (b) public education...
Genetic methods for biodiversity assessment
Melanie Culver, Robert R. Fitak, Hans-Werner Herrmann
2011, Book chapter
No abstract available....
Elevated gas hydrate saturation within silt and silty clay sediments in the Shenhu area, South China Sea
Xiujuan Wang, Deborah R. Hutchinson, Shiguo Wu, Shengxiong Yang, Yiqun Guo
2011, Journal of Geophysical Research B: Solid Earth (116)
Gas hydrate saturations were estimated using five different methods in silt and silty clay foraminiferous sediments from drill hole SH2 in the South China Sea. Gas hydrate saturations derived from observed pore water chloride values in core samples range from 10 to 45% of the pore space at 190–221 m...
Assessing water quality suitability for shortnose sturgeon in the Roanoke River, North Carolina, USA with an in situ bioassay approach
W.G. Cope, F.M. Holliman, T.J. Kwak, N.C. Oakley, P.R. Lazaro, D. Shea, T. Augspurger, J.M. Law, J.P. Henne, K.M. Ware
2011, Journal of Applied Ichthyology (27) 1-12
The aim of this study was to determine the suitability of water quality in the Roanoke River of North Carolina for supporting shortnose sturgeon Acipenser brevirostrum, an endangered species in the United States. Fathead minnows Pimephales promelas were also evaluated alongside the sturgeon as a comparative species to measure potential...
Mapping the distribution of materials in hyperspectral data using the USGS Material Identification and Characterization Algorithm (MICA)
Raymond F. Kokaly, T. V. V. King, Todd M. Hoefen
2011, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Identifying materials by measuring and analyzing their reflectance spectra has been an important method in analytical chemistry for decades. Airborne and space-based imaging spectrometers allow scientists to detect materials and map their distributions across the landscape. With new satellite-borne hyperspectral sensors planned for the future, for example, HYSPIRI (HYPerspectral InfraRed...
The application of prototype point processes for the summary and description of California wildfires
K. Nichols, F.P. Schoenberg, Jon E. Keeley, A. Bray, D. Diez
2011, Journal of Time Series Analysis (32) 420-429
A method for summarizing repeated realizations of a space‐time marked point process, known as prototyping, is discussed and applied to catalogues of wildfires in California. Prototype summaries are constructed for varying time intervals using California wildfire data from 1990 to 2006. Previous work on prototypes for temporal and space‐time point...
No correlation between Anderson Reservoir stage level and underlying Calaveras fault seismicity despite calculated differential stress increases
T. Parsons
2011, Lithosphere (3) 261-264
Concerns have been raised that stresses from reservoir impoundment may trigger damaging earthquakes because rate changes have been associated with reservoir impoundment or stage-level changes globally. Here, the idea is tested blindly using Anderson Reservoir, which lies atop the seismically active Calaveras fault. The only knowledge held by the author...
Modeling the spatial-temporal dynamics of net primary production in Yangtze River Basin using IBIS model
Z. Zhang, H. Jiang, J. Liu, Q. Zhu, X. Wei, Z. Jiang, G. Zhou, X. Zhang, J. Han
2011, Conference Paper, Proceedings - 2011 19th international conference on geoinformatics, Geoinformatics 2011
The climate change has significantly affected the carbon cycling in Yangtze River Basin. To better understand the alternation pattern for the relationship between carbon cycling and climate change, the net primary production (NPP) were simulated in the study area from 1956 to 2006 by using the Integrated Biosphere Simulator (IBIS)....
Seismic and geodetic signatures of fault slip at the Slumgullion Landslide Natural Laboratory
J. Gomberg, W. Schulz, P. Bodin, J. Kean
2011, Journal of Geophysical Research B: Solid Earth (116)
We tested the hypothesis that the Slumgullion landslide is a useful natural laboratory for observing fault slip, specifically that slip along its basal surface and side-bounding strike-slip faults occurs with comparable richness of aseismic and seismic modes as along crustal- and plate-scale boundaries. Our study provides new constraints on models...
Scale-dependent factors affecting North American river otter distribution in the midwest
Mackenzie R. Jeffress, Craig P. Paukert, Joanna B. Whittier, B. K. Sandercock, P. S. Gipson
2011, American Midland Naturalist (166) 177-193
The North American river otter (Lontra canadensis) is recovering from near extirpation throughout much of its range. Although reintroductions, trapping regulations and habitat improvements have led to the reestablishment of river otters in the Midwest, little is known about how their distribution is influenced by local- and landscape-scale habitat....
Globally Gridded Satellite observations for climate studies
K.R. Knapp, S. Ansari, C.L. Bain, M.A. Bourassa, M.J. Dickinson, Chris Funk, C.N. Helms, C.C. Hennon, C.D. Holmes, G. J. Huffman, J.P. Kossin, H.-T. Lee, A. Loew, G. Magnusdottir
2011, Bulletin of the American Meteorological Society (92) 893-907
Geostationary satellites have provided routine, high temporal resolution Earth observations since the 1970s. Despite the long period of record, use of these data in climate studies has been limited for numerous reasons, among them that no central archive of geostationary data for all international satellites exists, full temporal and spatial...
An empirical model of the quiet daily geomagnetic field variation
Y. Yamazaki, K. Yumoto, M.G. Cardinal, B.J. Fraser, P. Hattori, Y. Kakinami, J.Y. Liu, K.J.W. Lynn, R. Marshall, D. McNamara, T. Nagatsuma, V.M. Nikiforov, R.E. Otadoy, M. Ruhimat, B.M. Shevtsov, K. Shiokawa, S. Abe, T. Uozumi, A. Yoshikawa
2011, Journal of Geophysical Research A: Space Physics (116)
An empirical model of the quiet daily geomagnetic field variation has been constructed based on geomagnetic data obtained from 21 stations along the 210 Magnetic Meridian of the Circum‐pan Pacific Magnetometer Network (CPMN) from 1996 to 2007. Using the least squares fitting method for geomagnetically quiet days (Kp ≤ 2+),...
The 2007 Nazko, British Columbia, earthquake sequence: Injection of magma deep in the crust beneath the Anahim volcanic belt
J.F. Cassidy, N. Balfour, C. Hickson, H. Kao, Rickie White, J. Caplan-Auerbach, S. Mazzotti, Gary C. Rogers, I. Al-Khoubbi, A.L. Bird, L. Esteban, M. Kelman, J. Hutchinson, D. McCormack
2011, Bulletin of the Seismological Society of America (101) 1732-1741
On 9 October 2007, an unusual sequence of earthquakes began in central British Columbia about 20 km west of the Nazko cone, the most recent (circa 7200 yr) volcanic center in the Anahim volcanic belt. Within 25 hr, eight earthquakes of magnitude 2.3-2.9 occurred in a region where no earthquakes...
