A likelihood framework for joint estimation of salmon abundance and migratory timing using telemetric mark-recapture
Jeffrey F. Bromaghin, Kenneth S. Gates, Douglas E. Palmer
2010, North American Journal of Fisheries Management (30) 1385-1394
Many fisheries for Pacific salmon Oncorhynchus spp. are actively managed to meet escapement goal objectives. In fisheries where the demand for surplus production is high, an extensive assessment program is needed to achieve the opposing objectives of allowing adequate escapement and fully exploiting the available surplus. Knowledge of abundance is a critical...
Juvenile salmonid survival, passage, and egress at McNary Dam during tests of temporary spillway weirs, 2008
N.S. Adams, T.L. Liedtke
2010, Report
n/a ...
Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer
Christopher T. Green, J.K. Bohlke, Barbara A. Bekins, Steven P. Phillips
2010, Water Resources Research (46)
Gradients in contaminant concentrations and isotopic compositions commonly are used to derive reaction parameters for natural attenuation in aquifers. Differences between field‐scale (apparent) estimated reaction rates and isotopic fractionations and local‐scale (intrinsic) effects are poorly understood for complex natural systems. For a heterogeneous alluvial fan aquifer, numerical models and field...
Effectiveness of a redesigned water diversion using rock vortex weirs to enhance longitudinal connectivity for small Salmonids
Kyle D. Martens, Patrick J. Connolly
2010, North American Journal of Fisheries Management 1544-1552
For nearly 100 years, water diversions have affected fish passage in Beaver Creek, a tributary of the lower Methow River in north-central Washington State. From 2000 to 2004, four dam-style water diversions were replaced with a series of rock vortex weirs (RVWs). The weirs were designed to allow fish passage...
Sexually transmitted bacteria affect female cloacal assemblages in a wild bird
Joel White, Pascal Mirleau, Etienne Danchin, Herve Mulard, Scott A. Hatch, Phillipp Heeb, Richard H. Wagner
2010, Ecology Letters (13) 1515-1524
Sexual transmission is an important mode of disease propagation, yet its mechanisms remain largely unknown in wild populations. Birds comprise an important model for studying sexually transmitted microbes because their cloaca provides a potential for both gastrointestinal pathogens and endosymbionts to become incorporated into ejaculates. We experimentally demonstrate in a...
Establishing a Multi-scale Stream Gaging Network in the Whitewater River Basin, Kansas, USA
J.A. Clayton, J. W. Kean
2010, Water Resources Management (24) 3641-3664
Investigating the routing of streamflow through a large drainage basin requires the determination of discharge at numerous locations in the channel network. Establishing a dense network of stream gages using conventional methods is both cost-prohibitive and functionally impractical for many research projects. We employ herein a previously tested, fluid-mechanically based...
Kinetics of selenium release in mine waste from the Meade Peak Phosphatic Shale, Phosphoria Formation, Wooley Valley, Idaho, USA
Lisa L. Stillings, Michael C. Amacher
2010, Chemical Geology (269) 113-123
Phosphorite from the Meade Peak Phosphatic Shale member of the Permian Phosphoria Formation has been mined in southeastern Idaho since 1906. Dumps of waste rock from mining operations contain high concentrations of Se which readily leach into nearby streams and wetlands. While the most common mineralogical residence of Se...
Predicting the probability and volume of postwildfire debris flows in the intermountain western United States
S.H. Cannon, J.E. Gartner, M.G. Rupert, J. A. Michael, A. H. Rea, C. Parrett
2010, Geological Society of America Bulletin (122) 127-144
Empirical models to estimate the probability of occurrence and volume of postwildfire debris flows can be quickly implemented in a geographic information system (GIS) to generate debris-flow hazard maps either before or immediately following wildfires. Models that can be used to calculate the probability of debris-flow production from individual drainage...
Measurement and modeling of polychlorinated biphenyl bioaccumulation from sediment for the marine polychaete neanthes arenaceodentata and response to sorbent amendment
E.M.-L. Janssen, Marie Noele Croteau, S. N. Luoma, R.G. Luthy
2010, Environmental Science & Technology (44) 2857-2863
Bioaccumulation rates of polychlorinated biphenyls (PCBs) for the marine polychaete Neanthes arenaceodentata were characterized, including PCB uptake rates from water and sediment, and the effect of sorbent amendment to the sediment on PCB bioavailability, organism growth, and lipid content. Physiological parameters were incorporated into a biodynamic model to predict contaminant...
Effects of topographic position and geology on shaking damage to residential wood-framed structures during the 2003 San Simeon earthquake, western San Luis obispo county, California
T.P. McCrink, C.J. Wills, C.R. Real, M.W. Manson
2010, Earthquake Spectra (26) 779-802
A statistical evaluation of shaking damage to wood-framed houses caused by the 2003 M6.5 San Simeon earthquake indicates that both the rate and severity of damage, independent of structure type, are significantly greater on hilltops compared to hill slopes when underlain by Cretaceous or Tertiary sedimentary rocks. This increase in...
Sapflow and water use of freshwater wetland trees exposed to saltwater incursion in a tidally influenced South Carolina watershed
K. W. Krauss, J.A. Duberstein
2010, Canadian Journal of Forest Research (40) 525-535
Sea-level rise and anthropogenic activity promote salinity incursion into many tidal freshwater forested wetlands. Interestingly, individual trees can persist for decades after salt impact. To understand why, we documented sapflow (Js), reduction in Js with sapwood depth, and water use (F) of baldcypress (Taxodium distichum (L.) Rich.) trees undergoing exposure...
Effects of prior detections on estimates of detection probability, abundance, and occupancy
Jason D. Riddle, Rua S. Mordecai, Kenneth H. Pollock, Theodore R. Simons
2010, The Auk (127) 94-99
Survey methods that account for detection probability often require repeated detections of individual birds or repeated visits to a site to conduct Counts or collect presence-absence data. Initial encounters with individual species or individuals of a species could influence detection probabilities for subsequent encounters. For example, observers may be more...
Development of a macrophyte-based index of biotic integrity for Minnesota lakes
M.W. Beck, L.K. Hatch, B. Vondracek, R.D. Valley
2010, Ecological Indicators (10) 968-979
Traditional approaches for managing aquatic resources have often failed to account for effects of anthropogenic disturbances on biota that are not directly reflected by chemical and physical proxies of environmental condition. The index of biotic integrity (IBI) is a potentially effective assessment method to integrate ecological, functional, and structural aspects...
Spectral assessment of new ASTER SWIR surface reflectance data products for spectroscopic mapping of rocks and minerals
J.C. Mars, L. C. Rowan
2010, Remote Sensing of Environment (114) 2011-2025
ASTER reflectance spectra from Cuprite, Nevada, and Mountain Pass, California, were compared to spectra of field samples and to ASTER-resampled AVIRIS reflectance data to determine spectral accuracy and spectroscopic mapping potential of two new ASTER SWIR reflectance datasets: RefL1b and AST_07XT. RefL1b is a new reflectance dataset produced for this...
Hematology of southern Beaufort Sea polar bears (2005-2007): Biomarker for an arctic ecosystem health sentinel
Cassandra M. Kirk, Steven C. Amstrup, Rhonda Swor, Darce Holcomb, T. M. O'Hara
2010, EcoHealth (7) 307-320
Declines in sea-ice habitats have resulted in declining stature, productivity, and survival of polar bears in some regions. With continuing sea-ice declines, negative population effects are projected to expand throughout the polar bear's range. Precise causes of diminished polar bear life history performance are unknown, however, climate and sea-ice condition...
Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf
J. Ciancio, D.A. Beauchamp, M. Pascual
2010, Limnology and Oceanography (55) 2181-2192
On the basis of stable isotope analysis, we estimated the marine diet of the most abundant anadromous salmonid species in Patagonian Atlantic basins. The results were coupled with bioenergetic and population models to estimate the consumption of food by salmonids and was compared with that by seabirds, the most abundant...
Incubation behavior of king eiders on the coastal plain of Northern Alaska
R.L. Bentzen, A.N. Powell, Laura M. Phillips, R.S. Suydam
2010, Polar Biology (33) 1075-1082
Incubating birds balance their energetic demands during incubation with the needs of the developing embryos. Incubation behavior is correlated with body size; larger birds can accumulate more endogenous reserves and maintain higher incubation constancy. King eiders (Somateria spectabilis) contend with variable and cold spring weather, little nesting cover, and low...
40Ar/39Ar geochronology and geochemical reconnaissance of the Eocene Lowland Creek volcanic field, west-central Montana
F.O. Dudas, V.O. Ispolatov, S. S. Harlan, L.W. Snee
2010, Journal of Geology (118) 295-304
We report geochronological and geochemical data for the calc-alkalic Lowland Creek volcanic field (LCVF) in westcentral Montana. 40Ar/ 39Ar age determinations show that the LCVF was active from 52.9 to 48.6 Ma, with tuff-forming eruptions at 52.9 ?? 0.14 and 51.8 ?? 0.14 Ma. These dates span the age range...
Environmental tolerance of an invasive riparian tree and its potential for continued spread in the southwestern US
L.V. Reynolds, D.J. Cooper
2010, Journal of Vegetation Science (21) 733-743
Questions: Exotic plant invasion may be aided by facilitation and broad tolerance of environmental conditions, yet these processes are poorly understood in species-rich ecosystems such as riparian zones. In the southwestern United States (US) two plant species have invaded riparian zones: tamarisk (Tamarix ramosissima, T. chinensis, and their hybrids) and...
Migration patterns and movements of sandhill cranes wintering in central and southwestern Louisiana
Sammy L. King, Aaron R. Pierce, Kent Hersey, Nicholas Winstead
Barry K. Hartup, editor(s)
2010, Conference Paper, Proceedings of the eleventh North American crane workshop
In this study we trapped wintering sandhill cranes (Grus canadensis) in Louisiana and fitted them with satellite transmitters to determine their migration routes. Four of the 6 sandhill cranes with validated locations and a terminus point used the Central Flyway for spring migration; 2 of these 4 (the only 2...
Physiological, molecular, and cellular mechanisms of impaired seawater tolerance following exposure of Atlantic salmon, Salmo salar, smolts to acid and aluminum
M.Y. Monette, T. Yada, V. Matey, S. D. McCormick
2010, Aquatic Toxicology (99) 17-32
We examined the physiological, molecular, and cellular mechanisms of impaired ion regulation in Atlantic salmon, Salmo salar, smolts following acute acid and aluminum (Al) exposure. Smolts were exposed to: control (pH 6.5, 3.4??gl-1 Al), acid and low Al (LAl: pH 5.4, 11??gl-1 Al), acid and moderate Al (MAl: pH 5.3,...
Post-collisional magmatism in the central East African Orogen: The Maevarano Suite of north Madagascar
K. M. Goodenough, Ronald J. Thomas, B. De Waele, R. M. Key, D. I. Schofield, W. Bauer, R. D. Tucker, J. M. Rafahatelo, M. Rabarimanana, A.V. Ralison, T. Randriamananjara
2010, LITHOS (116) 18-34
Late tectonic, post-collisional granite suites are a feature of many parts of the Late Neoproterozoic to Cambrian East African Orogen (EAO), where they are generally attributed to late extensional collapse of the orogen, accompanied by high heat flow and asthenospheric uprise. The Maevarano Suite comprises voluminous plutons which were emplaced...
SHRIMP U-Pb dating of recurrent Cryogenian and Late Cambrian-Early Ordovician alkalic magmatism in central Idaho: Implications for Rodinian rift tectonics
K. Lund, J. N. Aleinikoff, K. V. Evans, E. A. duBray, E.H. deWitt, D.M. Unruh
2010, Geological Society of America Bulletin (122) 430-453
Composite alkalic plutonic suites and tuffaceous diamictite, although discontinuously exposed across central Idaho in roof pendants and inliers within the Idaho batholith and Challis volcanic-plutonic complex, define the >200-km-long northwest-aligned Big Creek-Beaverhead belt. Sensitive highresolution ion microprobe (SHRIMP) U-Pb zircon dates on these igneous rocks provide direct evidence for the...
The Sudbury impact layer in the paleoproterozoiciron ranges of northern Michigan, USA
W.F. Cannon, K. J. Schulz, J. Wright Horton Jr., David A. King
2010, Geological Society of America Bulletin (122) 50-75
A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. Radiometric age constraints from events predating and postdating deposition of the breccia are ca. 1875 Ma and...
Global estimates of evapotranspiration and gross primary production based on MODIS and global meteorology data
W. Yuan, S. Liu, G. Yu, J.-M. Bonnefond, J. Chen, K. Davis, A.R. Desai, Allen H. Goldstein, D. Gianelle, F. Rossi, A.E. Suyker, S.B. Verma
2010, Remote Sensing of Environment (114) 1416-1431
The simulation of gross primary production (GPP) at various spatial and temporal scales remains a major challenge for quantifying the global carbon cycle. We developed a light use efficiency model, called EC-LUE, driven by only four variables: normalized difference vegetation index (NDVI), photosynthetically active radiation (PAR), air temperature, and...
