Upper Klamath Basin Landsat Image for April 28, 2006: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-7 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-7 satellite is part of an ongoing...
Upper Klamath Basin Landsat Image for May 30, 2006: Path 45 Rows 30 and 31
Daniel T. Snyder
2012, Report
This image is a mosaic of Landsat-7 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-7 satellite is part of an ongoing...
Hydrogen isotope investigation of amphibole and biotite phenocrysts in silicic magmas erupted at Lassen Volcanic Center, California
S.J. Underwood, T.C. Feeley, M.A. Clynne
2012, Journal of Volcanology and Geothermal Research (227-228) 32-49
Hydrogen isotope ratio, water content and Fe3 +/Fe2 + in coexisting amphibole and biotite phenocrysts in volcanic rocks can provide insight into shallow pre- and syn-eruptive magmatic processes such as vesiculation, and lava drainback with mixing into less devolatilized magma that erupts later in a volcanic sequence. We studied four...
Comparison of electrical conductivity calculation methods for natural waters
R. Blaine McCleskey, D. Kirk Nordstrom, Joseph N. Ryan
2012, Limnology and Oceanography: Methods (10) 952-967
The capability of eleven methods to calculate the electrical conductivity of a wide range of natural waters from their chemical composition was investigated. A brief summary of each method is presented including equations to calculate the conductivities of individual ions, the ions incorporated, and the method's limitations. The ability of...
Sex difference in polybrominated diphenyl ether concentrations of walleyes
Charles P. Madenjian, Autumn W. Trombka, Richard R. Rediske, David J. Jude, James P. O'Keefe
2012, Journal of Great Lakes Research (38) 167-175
Polybrominated diphenyl ether (PBDE) concentrations were determined for mature male and mature female walleyes (Sander vitreus) sampled from the Saginaw Bay population during 2007. PBDE concentrations in prey fish caught in the Saginaw River, the primary tributary to Saginaw Bay, and in Saginaw Bay during 2005 and 2007 also were...
The Quaternary thrust system of the northern Alaska Range
Sean P. Bemis, Gary A. Carver, Richard D. Koehler
2012, Geosphere (8) 196-205
The framework of Quaternary faults in Alaska remains poorly constrained. Recent studies in the Alaska Range north of the Denali fault add significantly to the recognition of Quaternary deformation in this active orogen. Faults and folds active during the Quaternary occur over a length of ∼500 km along the...
Mississippi Sound
Lawrence R. Handley, Kathryn A. Spear, Ali Leggett, Cindy A. Thatcher
2012, Report, Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
The Mississippi Sound is the primary body of water off the Mississippi Coast, extending from Lake Borgne, La. in the west to Mobile Bay, Ala. in the east and bordered by the barrier islands--Cat, Ship, Horn, Petit Bois, and Dauphin Islands--of Gulf Islands National Seashore to the south (Figure 1)....
Population fragmentation and inter-ecosystem movements of grizzly bears in Western Canada and the Northern United States
M.F. Proctor, David Paetkau, B. N. McLellan, G.B. Stenhouse, K.C. Kendall, R.D. Mace, W.F. Kasworm, C. Servheen, C.L. Lausen, M.L. Gibeau, W.L. Wakkinen, M.A. Haroldson, G. Mowat, C.D. Apps, L.M. Ciarniello, R.M.R. Barclay, M.S. Boyce, C.C. Schwartz, C. Strobeck
2012, Wildlife Monographs 1-46
Population fragmentation compromises population viability, reduces a species ability to respond to climate change, and ultimately may reduce biodiversity. We studied the current state and potential causes of fragmentation in grizzly bears over approximately 1,000,000 km 2 of western Canada, the northern United States (US), and southeast Alaska. We...
Hierarchy in factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley
D.J. Dembkowski, L.E. Miranda
2012, Environmental Biology of Fishes (93) 357-368
River-floodplain ecosystems offer some of the most diverse and dynamic environments in the world. Accordingly, floodplain habitats harbor diverse fish assemblages. Fish biodiversity in floodplain lakes may be influenced by multiple variables operating on disparate scales, and these variables may exhibit a hierarchical organization depending on whether one variable governs...
Wolf population dynamics in the U.S. Northern Rocky Mountains are affected by recruitment and human-caused mortality
J.A. Gude, M.S. Mitchell, Robin E. Russell, C.A. Sime, E.E. Bangs, L.D. Mech, R.R. Ream
2012, Journal of Wildlife Management (76) 108-118
Reliable analyses can help wildlife managers make good decisions, which are particularly critical for controversial decisions such as wolf (Canis lupus) harvest. Creel and Rotella (2010) recently predicted substantial population declines in Montana wolf populations due to harvest, in contrast to predictions made by Montana Fish, Wildlife and Parks (MFWP)....
Roles of saltcedar (Tamarix spp.) and capillary rise in salinizing a non-flooding terrace on a flow-regulated desert river
E. P. Glenn, K. Morino, Pamela L. Nagler, R. S. Murray, S. Pearlstein, K. R. Hultine
2012, Journal of Arid Environments (79) 56-65
Tamarix spp. (saltcedar) secretes salts and has been considered to be a major factor contributing to the salinization of river terraces in western US riparian zones. However, salinization can also occur from the capillary rise of salts from the aquifer into the vadose zone. We investigated the roles of saltcedar and...
Determination of sediment provenance by unmixing the mineralogy of source-area sediments: The "SedUnMix" program
John T. Andrews, D. D. Eberl
2012, Marine Geology (291-294) 24-33
Along the margins of areas such as Greenland and Baffin Bay, sediment composition reflects a complex mixture of sources associated with the transport of sediment in sea ice, icebergs, melt-water and turbidite plumes. Similar situations arise in many contexts associated with sediment transport and with the mixing of sediments from...
Water utilization of the Cretaceous Mussentuchit Member local vertebrate fauna, Cedar Mountain Formation, Utah, USA: Using oxygen isotopic composition of phosphate
C.A. Suarez, Luis A. Gonzalez, G.A. Ludvigson, R.L. Cifelli, E. Tremain
2012, Palaeogeography, Palaeoclimatology, Palaeoecology (313-314) 78-92
While the oxygen isotopic composition of pedogenic carbonate has successfully been used to address the effects of global climate change on the hydrologic cycle, detailed regional paleohydrologic studies are lacking. Since the hydrologic cycle can vary extensively on local or regional scales due to events such as such as...
Evaluating the demographic buffering hypothesis with vital rates estimated for Weddell seals from 30years of mark-recapture data
J.J. Rotella, William A. Link, T. Chambert, G.E. Stauffer, R.A. Garrott
2012, Journal of Animal Ecology (81) 162-173
1. Life‐history theory predicts that those vital rates that make larger contributions to population growth rate ought to be more strongly buffered against environmental variability than are those that are less important. Despite the importance of the theory for predicting demographic responses to changes in the environment, it is not yet...
Evidence for earthquake triggering of large landslides in coastal Oregon, USA
W.H. Schulz, S.L. Galloway, J.D. Higgins
2012, Geomorphology (141-142) 88-98
Landslides are ubiquitous along the Oregon coast. Many are large, deep slides in sedimentary rock and are dormant or active only during the rainy season. Morphology, observed movement rates, and total movement suggest that many are at least several hundreds of years old. The offshore Cascadia subduction zone produces great...
Rapid microsatellite identification from illumina paired-end genomic sequencing in two birds and a snake
T.A. Castoe, A.W. Poole, A. P. J. de Koning, K.L. Jones, D.F. Tomback, Sara J. Oyler-McCance, Jennifer A. Fike, S.L. Lance, J.W. Streicher, E.N. Smith, D.D. Pollock
2012, PLoS ONE (7)
Identification of microsatellites, or simple sequence repeats (SSRs), can be a time-consuming and costly investment requiring enrichment, cloning, and sequencing of candidate loci. Recently, however, high throughput sequencing (with or without prior enrichment for specific SSR loci) has been utilized to identify SSR loci. The direct “Seq-to-SSR” approach has an...
Tidally driven export of dissolved organic carbon, total mercury, and methylmercury from a mangrove-dominated estuary
Brian A. Bergamaschi, D. P. Krabbenhoft, George Aiken, Eduardo Patino, D.G. Rumbold, William H. Orem
2012, Environmental Science & Technology (46) 1371-1378
The flux of dissolved organic carbon (DOC) from mangrove swamps accounts for 10% of the global terrestrial flux of DOC to coastal oceans. Recent findings of high concentrations of mercury (Hg) and methylmercury (MeHg) in mangroves, in conjunction with the common co-occurrence of DOC and Hg species, have raised concerns...
Monitoring biodegradation of ethene and bioremediation of chlorinated ethenes at a contaminated site using compound-specific isotope analysis (CSIA)
S.O.C. Mundle, T. Johnson, G. Lacrampe-Couloume, A. Perez-De-Mora, M. Duhamel, E.A. Edwards, M.L. McMaster, E. Cox, K. Revesz, B. Sherwood Lollar
2012, Environmental Science & Technology (46) 1731-1738
Chlorinated ethenes are commonly found in contaminated groundwater. Remediation strategies focus on transformation processes that will ultimately lead to nontoxic products. A major concern with these strategies is the possibility of incomplete dechlorination and accumulation of toxic daughter products (cis-1,2-dichloroethene (cDCE), vinyl chloride (VC)). Ethene mass balance can be used...
The FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies
Joachim Schoenfeld, Elisabeth Alve, Emmanuelle Geslin, Frans Jorissen, Sergei Korsun, Silva Spezzaferri, Sigal Abramovich, Ahuva Almogi-Labin, Eric Armynot du Chatelet, Christine Barras, Luisa Bergamin, Erica Bicchi, Vincent Bouchet, Alejandro Cearreta, Letizia Di Bella, Noortje Dijkstra, Sibelle Trevisan Disaro, Luciana Ferraro, Fabrizio Frontalini, Giordana Gennari, Elena Golikova, Kristin Haynert, Silvia Hess, Katrine Husum, Virginia Martins, Mary McGann, Shai Oron, Elena Romano, Silvia Mello Sousa, Akira Tsujimoto
2012, Marine Micropaleontology (94-95) 1-13
The European Community Marine Strategy Framework Directive (MSFD) was established to provide guidelines for monitoring the quality of marine ecosystems. Monitoring the status of marine environments is traditionally based on macrofauna surveys, for which standardised methods have been established. Benthic foraminifera are also good indicators of environmental status because of...
Induction of anti-viral genes during acute infection with Viral hemorrhagic septicemia virus (VHSV) genogroup IVa in Pacific herring (Clupea pallasii)
John D. Hansen, James C. Woodson, Paul K. Hershberger, Courtney Grady, Jacob L. Gregg, Maureen K. Purcell
2012, Fish and Shellfish Immunology (32) 259-267
Infection with the aquatic rhabdovirus Viral hemorrhagic septicemia virus (VHSV) genogroup IVa results in high mortality in Pacific herring (Clupea pallasii) and is hypothesized to be a potential limiting factor for herring recovery. To investigate anti-viral immunity in the Pacific herring, four immune response genes were identified: the myxovirus resistance (Clpa-Mx), a...
Photodissolution of soil organic matter
L.M. Mayer, K.R. Thornton, L.L. Schick, J.D. Jastrow, Jennifer W. Harden
2012, Geoderma (170) 314-321
Sunlight has been shown to enhance loss of organic matter from aquatic sediments and terrestrial plant litter, so we tested for similar reactions in mineral soil horizons. Losses of up to a third of particulate organic carbon occurred after continuous exposure to full-strength sunlight for dozens of hours, with similar...
Application of a weighted-averaging method for determining paleosalinity: a tool for restoration of south Florida's estuaries
G.L. Wingard, J.W. Hudley
2012, Estuaries and Coasts (35) 262-280
A molluscan analogue dataset is presented in conjunction with a weighted-averaging technique as a tool for estimating past salinity patterns in south Florida’s estuaries and developing targets for restoration based on these reconstructions. The method, here referred to as cumulative weighted percent (CWP), was tested using modern surficial samples collected...
Mineral parageneses, regional architecture, and tectonic evolution of Franciscan metagraywackes, Cape Mendocino-Garberville-Covelo 30' x 60' quadrangles, northwest California
W. G. Ernst, Robert J. McLaughlin
2012, Tectonics (31)
The Franciscan Complex is a classic subduction-zone assemblage. In northwest California, it comprises a stack of west vergent thrust sheets: westernmost Eastern Belt outliers; Central Belt mélange; Coastal Belt Yager terrane; Coastal Belt Coastal terrane; Coastal Belt King Range/False Cape terranes. We collected samples and determined P-T conditions of recrystallization...
Spatial interpolation schemes of daily precipitation for hydrologic modeling
Y. Hwang, M.R. Clark, B. Rajagopalan, George H. Leavesley
2012, Stochastic Environmental Research and Risk Assessment (26) 295-320
Distributed hydrologic models typically require spatial estimates of precipitation interpolated from sparsely located observational points to the specific grid points. We compare and contrast the performance of regression-based statistical methods for the spatial estimation of precipitation in two hydrologically different basins and confirmed that widely used regression-based estimation schemes fail...
Assessing freshwater habitat of adult anadromous alewives using multiple approaches
Martha E. Mather, Holly J. Frank, Joseph M. Smith, Roxann D. Cormier, Robert M. Muth, John T. Finn
2012, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science (4) 188-200
After centuries of disturbance, environmental professionals now recognize the need to restore coastal watersheds for native fish and protect the larger ecosystems on which fish and other aquatic biota depend. Anadromous fish species are an important component of coastal ecosystems that are often adversely affected by human activities. Restoring native...
