Upper Klamath Basin Landsat Image for July 25, 2006: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-5 images of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for October 16, 2004: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Risk assessment for adult butterflies exposed to the mosquito control pesticide naled
Timothy A. Bargar
2012, Environmental Toxicology and Chemistry (31) 885-891
A prospective risk assessment was conducted for adult butterflies potentially exposed to the mosquito control insecticide naled. Published acute mortality data, exposure data collected during field studies, and morphometric data (total surface area and fresh body weight) for adult butterflies were combined in a probabilistic estimate of the likelihood that...
Climate variability during the Medieval Climate Anomaly and Little Ice Age based on ostracod faunas and shell geochemistry from Biscayne Bay, Florida
Thomas M. Cronin, G. Lynn Wingard, Gary S. Dwyer, Peter K. Swart, Debra A. Willard, Jessica Albietz
2012, Book chapter, Ostracoda as proxies for quaternary climate change
An 800-year-long environmental history of Biscayne Bay, Florida, is reconstructed from ostracod faunal and shell geochemical (oxygen, carbon isotopes, Mg/Ca ratios) studies of sediment cores from three mudbanks in the central and southern parts of the bay. Using calibrations derived from analyses of modern Biscayne and Florida Bay ostracods, palaeosalinity...
Microsatellite genetic diversity and differentiation of native and introduced grass carp populations in three continents
Duane Chapman, Q. Chen, Chenghui Wang, Jinlian Zhao, Guoqing Lu, Jeney Zsigmond, Si-Fa Li
2012, Genetica (140) 115-123
Grass carp (Ctenopharyngodon idella), a freshwater species native to China, has been introduced to about 100 countries/regions and poses both biological and environmental challenges to the receiving ecosystems. In this study, we analyzed genetic variation in grass carp from three introduced river systems (Mississippi River Basin in US,...
Upper Klamath Basin Landsat Image for May 6, 2006: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-5 images of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for July 9, 2006: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-5 images of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Dissolved organic matter enhances microbial mercury methylation under sulfidic conditions
Andrew M. Graham, George R. Aiken, Cynthia Gilmour
2012, Environmental Science & Technology (46) 2715-2723
Dissolved organic matter (DOM) is generally thought to lower metal bioavailability in aquatic systems due to the formation of metal–DOM complexes that reduce free metal ion concentrations. However, this model may not be pertinent for metal nanoparticles, which are now understood to be ubiquitous, sometimes dominant, metal species in the...
Do environmental changes or juvenile competition act as mechanisms of species displacement in crayfishes?
Jacob T. Westhoff, R.J. DiStefano, Daniel D. Magoulick
2012, Hydrobiologia (683) 43-51
The Big Creek Crayfish, Orconectes peruncus, is native to the St. Francis River drainage in Missouri, USA and is often absent where the introduced Woodland Crayfish, Orconectes hylas, has established. We performed a field experiment to determine whether effects of current abiotic conditions and interspecific competition with O. hylas were responsible for displacement of O....
Relationships between Δ14C and the molecular quality of dissolved organic carbon in rivers draining to the coast from the conterminous United States
David Butman, Peter A. Raymond, Kenna D. Butler, George R. Aiken
2012, Global Biogeochemical Cycles (26)
Dissolved organic carbon (DOC) in natural waters possesses chemical and molecular qualities indicative of its source and age. The apportionment of DOC by age into millennial and decadal pools is necessary to understand the temporal connection between terrestrial and aquatic ecosystems in the global carbon cycle. We measured Δ14C-DOC and...
Upper Klamath Basin Landsat Image for September 30, 2004: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for October 7, 2004: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-5 images of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Panarchy
Ahjond S. Garmestani, Craig R. Allen
Abdel H. El-Shaarawi, Walter W. Piegorsch, editor(s)
2012, Book chapter, Encyclopedia of environmetrics
Panarchy is the term coined to describe hierarchical systems where control is not only top down, as typically considered, but also bottom up. A panarchy is composed of adaptive cycles, and an adaptive cycle describes the processes of development and decay in a system. Complex systems self-organize into hierarchies because...
Significance of a 3D Elevation Program to wetland mapping
Gregory I. Snyder, Megan Lang
2012, National Wetlands Newsletter (34) 11-15
The recent National Enhanced Assessment conducted by the U.S. Geology Survey identified billions of dollars in potential annual benefits if a national-scale enhanced elevation data program was implemented. Given the importance of topography to wetlands, wetland mapping could benefit significantly from improved elevation data. ...
Morphometric-based sexual determination of Bananaquits (Coereba flaveola)
Brent D. Bibles, Clint W. Boal
2012, Ornitologia Neotropical (23) 507-515
The Bananaquit (Coereba flaveola) is a common passerine throughout the tropics and has been a convenient species for ecological studies. This species has sexually monomorphic plumage and cannot be reliably sexed unless in breeding condition. This is problematic for demographic and comparative studies, which are contingent upon accurately aging and...
Science summary in support of Manatee Protection Area (MPA) design in Puerto Rico
C. Ashton Drew, Louise B. Alexander-Vaughn, Jaime A. Collazo
2012, Cooperator Science Series FWS/CSS-101-2012
The Antillean manatee (Trichechus manatus manatus), a subspecies of the West Indian manatee, is listed as endangered by the US Department of Interior. In accordance with its listing, the U.S. Fish and Wildlife Service’s Caribbean Field Office (USFWS) is mandated to create one or more Manatee Protection Areas (MPAs) for...
Near‐surface void detection using a seismic landstreamer and horizontal velocity and attenuation tomography
Sean F. Buckley, John W. Lane Jr.
2012, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2012
The detection and characterization of subsurface voids plays an important role in the study of karst formations and clandestine tunnels. Horizontal velocity and attenuation tomography (HVAT) using offset‐fan shooting and a towed seismic land streamer is a simple, rapid, minimally invasive method that shows promise for detecting near‐surface voids and...
The leatherbacks of Grande Riviere Trinidad and Tobago
Raymond R. Carthy
2012, Florida Environmental Outreach (3) 1, 10-13
No abstract available....
Progress report geologic map of the Grouse Creek 30' x 60' quadrangle, and Utah part of the Jackpot 30' x 60' quadrangle, Box Elder County, Utah, and Cassia County, Idaho (Year 3 of 4);
David M. Miller, Donald L. Clark, Michael L. Wells, Charles G. Oviatt, Tracey J. Felger, Victoria R. Todd
2012, Utah Geological Survey Open-File Report 598
No abstract available....
Laboratory investigations of the effects of nitrification-induced acidification on Cr cycling in vadose zone material partially derived from ultramafic rocks
Christopher T. Mills, Martin B. Goldhaber
2012, Science of the Total Environment (435-436) 363-373
Sacramento Valley (California, USA) soils and sediments have high concentrations of Cr(III) because they are partially derived from ultramafic material. Some Cr(III) is oxidized to more toxic and mobile Cr(VI) by soil Mn oxides. Valley soils typically have neutral to alkaline pH at which Cr(III) is highly immobile. Much of...
The origins of Late Quaternary debris avalanche and debris flow deposits from Cofre de Perote volcano, México
Rodolfo Diaz-Castellon, Bernard E. Hubbard, Gerardo Carrasco-Nunez, Jose Luis Rodriguez-Vargas
2012, Geosphere (8) 950-971
Cofre de Perote volcano is a compound, shield-like volcano located in the northeastern Trans-Mexican volcanic belt. Large debris avalanche and lahar deposits are associated with the evolution of Cofre. The two best preserved of these debris-avalanche and debris-flow deposits are the ∼42 ka “Los Pescados debris flow” deposit and...
Magnetostratigraphy of the Neogene Chaka basin and its implications for mountain building processes in the north-eastern Tibetan Plateau
H.-P. Zhang, W.H. Craddock, Richard O. Lease, W.-T. Wang, D.-Y. Yuan, P.-Z. Zhang, P. Molnar, D.-W. Zheng, W.-J. Zheng
2012, Basin Research (24) 31-50
Magnetostratigraphy of sedimentary rock deposited in the Chaka basin (north‐eastern Tibetan Plateau) indicates a late Miocene onset of basin formation and subsequent development of the adjacent Qinghai Nan Shan. Sedimentation in the basin initiated at ∼11 Ma. In the lower part of the basin fill, a coarsening‐upward sequence starting at ∼9 Ma,...
Metadata requirements and templates
Karl Heidemann
Michael S. Renslow, editor(s)
2012, Book chapter, Manual of airborne topographic lidar
Cambrian-lower Middle Ordovician passive carbonate margin, southern Appalachians
J. Fred Read, John E. Repetski
2012, Book chapter, The great American carbonate bank: The geology and economic resources of the Cambrian-Ordovician Sauk megasequence of Laurentia
The southern Appalachian part of the Cambrian–Ordovician passive margin succession of the great American carbonate bank extends from the Lower Cambrian to the lower Middle Ordovician, is as much as 3.5 km (2.2 mi) thick, and has long-term subsidence rates exceeding 5 cm (2 in.)/k.y. Subsiding depocenters separated by arches...
Sirenian pathology and mortality assessment
Robert K. Bonde, Antonio A. Mignucci-Ginannoni, Gregory D. Bossart
Ellen Marie Hines, John Elliot Reynolds, Lemnuel V. Aragones V., Antonio A. Mignucci-Ginannoni, Miriam Marmontel, editor(s)
2012, Book chapter, Sirenian conservation issues and strategies in developing countries
