Geologic characteristics and movement of the Meadow Creek landslide, part of the Coal Hill landslide complex, western Kane County, Utah
Francis X. Ashland, Greg N. McDonald
Stephanie M. Carney, David E. Tabet, Cari L. Johnson, editor(s)
2010, Utah Geological Association Publication 39: Geology of South-Central Utah 38-60
The Meadow Creek landslide, part of the Coal Hill landslide complex in western Kane County, Utah, is about 1.7 miles (2.7 km) wide and 1.3 miles (2.1 km) long and contains six smaller historical slides. The upper part of the Meadow Creek landslide is gently sloping and consists of...
Testing mixing models of old and young groundwater in a tropical lowland rain forest with environmental tracers
D. Kip Solomon, David P. Genereux, Niel Plummer, Eurybiades Busenberg
2010, Water Resources Research (46)
We tested three models of mixing between old interbasin groundwater flow (IGF) and young, locally derived groundwater in a lowland rain forest in Costa Rica using a large suite of environmental tracers. We focus on the young fraction of water using the transient tracers CFC‐11, CFC‐12, CFC‐113, SF6, 3H, and bomb 14C....
Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA
Peter B. McMahon, C. P. Carney, E. P. Poeter, Steven M. Peterson
2010, PNAS (25) 910-922
A prolonged drought in the High Plains of Nebraska prompted the use of groundwater for cooling at the largest coal-fired power plant in the State. Prior to the drought, groundwater was used primarily for irrigation and the power plant relied exclusively on surface water stored in a nearby reservoir for...
An experimental vaccine against Aeromonas hydrophila can induce protection in rainbow trout, Oncorhynchus mykiss (Walbaum)
S. E. LaPatra, K.P. Plant, S. Alcorn, V. Ostland, J. Winton
2010, Journal of Fish Diseases (33) 143-151
A candidate vaccine against Aeromonas hydrophila in rainbow trout, Oncorhynchus mykiss, was developed using a bacterial lysate. To test the strength of protection, A. hydrophila challenge models were compared using injection into both the intraperitoneal (IP) cavity and the dorsal sinus (DS) with selected doses of live bacteria washed in...
Improving inferences from fisheries capture-recapture studies through remote detection of PIT tags
David A. Hewitt, Eric C. Janney, Brian S. Hayes, Rip S. Shively
2010, Fisheries (35) 217-231
Models for capture-recapture data are commonly used in analyses of the dynamics of fish and wildlife populations, especially for estimating vital parameters such as survival. Capture-recapture methods provide more reliable inferences than other methods commonly used in fisheries studies. However, for rare or elusive fish species, parameter estimation is often...
Model-based evaluation of highly and low pathogenic avian influenza dynamics in wild birds
Viviane Hénaux, Michael D. Samuel, Christine M. Bunck
2010, PLoS ONE (5)
There is growing interest in avian influenza (AI) epidemiology to predict disease risk in wild and domestic birds, and prevent transmission to humans. However, understanding the epidemic dynamics of highly pathogenic (HPAI) viruses remains challenging because they have rarely been detected in wild birds. We used modeling to integrate available...
Amplification and transport of an endemic fish disease by an introduced species
Paul Hershberger, Bjorn Leeuw, Gregg Jacob, Courtney Grady, Kenneth Lujan, Susan Gutenberger, Maureen K. Purcell, James Woodson, James Winton, Michael Parsley
2010, Biological Invasions (12) 3665-3675
The introduction of American shad from the Atlantic to the Pacific coast of North America in the late 1800’s and the subsequent population expansion in the 1980’s resulted in the amplification of Ichthyophonus sp., a Mesomycetozoean parasite of wild marine fishes. Sequence analysis of the ribosomal DNA gene complex (small...
New software methods in radar ornithology using WSR-88D weather data and potential application to monitoring effects of climate change on bird migration
Reginald Mead, John Paxton, Richard S. Sojda
David A. Swayne, Wanhong Yang, A.A. Voinov, A. Rizzoli, T. Filatova, editor(s)
2010, Conference Paper, 2010 International Congress on Environmental Modelling and Software; Modelling for Environment's Sake, Fifth Biennial Meeting, Ottawa, Canada
Radar ornithology has provided tools for studying the movement of birds, especially related to migration. Researchers have presented qualitative evidence suggesting that birds, or at least migration events, can be identified using large broad scale radars such as the WSR-88D used in the NEXRAD weather surveillance system. This is potentially...
Influence of hummocks and emergent vegetation on hydraulic performance in a surface flow wastewater treatment wetland
Steffanie H. Keefe, Joan S. Daniels, Robert L. Runkel, Roland D. Wass, Eric A. Stiles, Larry B. Barber
2010, Water Resources Research (46)
A series of tracer experiments were conducted biannually at the start and end of the vegetation growing season in a surface flow wastewater treatment wetland located near Phoenix, AZ. Tracer experiments were conducted prior to and following reconfiguration and replanting of a 1.2 ha treatment wetland from its original design...
A procedure for radiometric recalibration of Landsat 5 TM reflective-band data
G. Chander, M.O. Haque, E. Micijevic, J. A. Barsi
2010, IEEE Transactions on Geoscience and Remote Sensing (48) 556-574
From the Landsat program's inception in 1972 to the present, the Earth science user community has been benefiting from a historical record of remotely sensed data. The multispectral data from the Landsat 5 (L5) Thematic Mapper (TM) sensor provide the backbone for this extensive archive. Historically, the radiometric calibration procedure...
Predicting future changes in Muskegon River Watershed game fish distributions under future land cover alteration and climate change scenarios
Paul J. Steen, Michael J. Wiley, Jeffrey S. Schaeffer
2010, Transactions of the American Fisheries Society (139) 396-412
Future alterations in land cover and climate are likely to cause substantial changes in the ranges of fish species. Predictive distribution models are an important tool for assessing the probability that these changes will cause increases or decreases in or the extirpation of species. Classification tree models that predict the...
A self-trained classification technique for producing 30 m percent-water maps from Landsat data
Jennifer R. Rover, Bruce K. Wylie, Lei Ji
2010, International Journal of Remote Sensing (31) 2197-2203
Small bodies of water can be mapped with moderate-resolution satellite data using methods where water is mapped as subpixel fractions using field measurements or high-resolution images as training datasets. A new method, developed from a regression-tree technique, uses a 30 m Landsat image for training the regression tree that, in...
A proposed lexicon of terms and concepts for human-bear management in North America
John B. Hopkins III, Stephen Herrero, Richard T. Shideler, Kerry A. Gunther, Charles C. Schwartz, Steven T. Kalinowski
2010, Ursus (21) 154-168
We believe that communication within and among agency personnel in the United States and Canada about the successes and failures of their human–bear (Ursidae) management programs will increase the effectiveness of these programs and of bear research. To communicate more effectively, we suggest agencies clearly define terms and concepts used...
Effect of clay content and mineralogy on frictional sliding behavior of simulated gouges: binary and ternary mixtures of quartz, illite, and montmorillonite
Sheryl Tembe, David A. Lockner, Teng-Fong Wong
2010, Journal of Geophysical Research B: Solid Earth (115)
We investigated the frictional sliding behavior of simulated quartz-clay gouges under stress conditions relevant to seismogenic depths. Conventional triaxial compression tests were conducted at 40 MPa effective normal stress on saturated saw cut samples containing binary and ternary mixtures of quartz, montmorillonite, and illite. In all cases, frictional strengths of...
Estimating the timing and location of shallow rainfall-induced landslides using a model for transient, unsaturated infiltration
Rex L. Baum, Jonathan W. Godt, William Z. Savage
2010, Journal of Geophysical Research F: Earth Surface (115)
Shallow rainfall-induced landslides commonly occur under conditions of transient infiltration into initially unsaturated soils. In an effort to predict the timing and location of such landslides, we developed a model of the infiltration process using a two-layer system that consists of an unsaturated zone above a saturated zone and implemented...
Identification, characterization and genetic mapping of TLR7, TLR8a1 and TLR8a2 genes in rainbow trout (Oncorhynchus mykiss)
Yniv Palti, Scott A. Gahr, Maureen K. Purcell, Sima Hadidi, Caird E. Rexroad III, Gregory A. Wiens
2010, Developmental and Comparative Immunology (34) 219-233
Induction of the innate immune pathways is critical for early anti-viral defense but there is limited understanding of how teleost fish recognize viral molecules and activate these pathways. In mammals, Toll-like receptors (TLR) 7 and 8 bind single-stranded RNA of viral origin and are activated by synthetic anti-viral imidazoquinoline compounds....
Functional linear models to test for differences in prairie wetland hydraulic gradients
Mark C. Greenwood, Richard S. Sojda, Todd M. Preston
David A. Swayne, Wanhong Yang, A.A. Voinov, A. Rizzoli, T. Filatova, editor(s)
2010, Conference Paper, 2010 International Congress on Environmental Modelling and Software; Modelling for Environment's Sake, Fifth Biennial Meeting, Ottawa, Canada
Functional data analysis provides a framework for analyzing multiple time series measured frequently in time, treating each series as a continuous function of time. Functional linear models are used to test for effects on hydraulic gradient functional responses collected from three types of land use in Northeastern Montana at fourteen...
Rupture directivity of moderate earthquakes in northern California
Linda C. Seekins, John Boatwright
2010, Bulletin of the Seismological Society of America (100) 1107-1119
We invert peak ground velocity and acceleration (PGV and PGA) to estimate rupture direction and rupture velocity for 47 moderate earthquakes (3.5≥M≥5.4) in northern California. We correct sets of PGAs and PGVs recorded at stations less than 55–125 km, depending on source depth, for site amplification and source–receiver distance, then...
Introduction to special section on phenomenology, underlying processes, and hazard implications of aseismic slip and nonvolcanic tremor
Joan Gomberg
2010, Journal of Geophysical Research (115)
This paper introduces the special section on the "phenomenology, underlying processes, and hazard implications of aseismic slip and nonvolcanic tremor" by highlighting key results of the studies published in it. Many of the results indicate that seismic and aseismic manifestations of slow slip reflect transient shear displacements on the plate...
Aftershocks are well aligned with the background stress field, contradicting the hypothesis of highly-heterogeneous crustal stress
Jeanne L. Hardebeck
2010, Journal of Geophysical Research B: Solid Earth (115)
It has been proposed that the crustal stress field contains small-length-scale heterogeneity of much larger amplitude than the uniform background stress. This model predicts that earthquake focal mechanisms should reflect the loading stress rather than the uniform background stress. So, if the heterogeneous stress hypothesis is correct, focal mechanisms before...
Genetic diversity of lake whitefish in lakes Michigan and Huron: sampling, standardization, and research priorities
Wendylee Stott, Justin A. VanDeHey, Brian L. Sloss
2010, Journal of Great Lakes Research (36) 59-65
We combined data from two laboratories to increase the spatial extent of a genetic data set for lake whitefish Coregonus clupeaformis from lakes Huron and Michigan and saw that genetic diversity was greatest between lakes, but that there was also structuring within lakes. Low diversity among stocks may be a...
Inelastic off-fault response and three-dimensional dynamics of earthquake rupture on a strike-slip fault
D.J. Andrews, Shuo Ma
2010, Journal of Geophysical Research B: Solid Earth (115) B04304
Large dynamic stress off the fault incurs an inelastic response and energy loss, which contributes to the fracture energy, limiting the rupture and slip velocity. Using an explicit finite element method, we model three-dimensional dynamic ruptures on a vertical strike-slip fault in a homogeneous half-space. The material is subjected to...
Mechanisms for chemostatic behavior in catchments: implications for CO2 consumption by mineral weathering
David W. Clow, M. Alisa Mast
2010, Chemical Geology (269) 40-51
Concentrations of weathering products in streams often show relatively little variation compared to changes in discharge, both at event and annual scales. In this study, several hypothesized mechanisms for this “chemostatic behavior” were evaluated, and the potential for those mechanisms to influence relations between climate, weathering fluxes, and CO2 consumption...
Linking non-culturable (qPCR) and culturable enterococci densities with hydrometeorological conditions
Muruleedhara N. Byappanahalli, Richard L. Whitman, Dawn A. Shively, Meredith B. Nevers
2010, Science of the Total Environment (408) 3096-3101
Quantitative polymerase chain reaction (qPCR) measurement of enterococci has been proposed as a rapid technique for assessment of beach water quality, but the response of qPCR results to environmental conditions has not been fully explored. Culture-based E. coli and enterococci have been used in empirical predictive models to characterize their...
Georeferencing the Large-Scale Aerial Photographs of a Great Lakes Coastal Wetland: A Modified Photogrammetric Method
Kurt P. Kowalski, Joel L. Grapentine
2010, Wetlands (30) 369-374
The geocontrol template method was developed to georeference multiple, overlapping analog aerial photographs without reliance upon conventionally obtained horizontal ground control. The method was tested as part of a long-term wetland habitat restoration project at a Lake Erie coastal wetland complex in the U.S. Fish and Wildlife Service Ottawa National...
