Simulating sterilization, vaccination, and test-and-remove as brucellosis control measures in bison
M. Ebinger, Paul C. Cross, Rick Wallen, P.J. White, John Treanor
2011, Ecological Applications (21) 2944-2959
Brucella abortus, the causative agent of bovine brucellosis, infects wildlife, cattle, and humans worldwide, but management of the disease is often hindered by the logistics of controlling its prevalence in wildlife reservoirs. We used an individually based epidemiological model to assess the relative efficacies of three management interventions (sterilization, vaccination,...
A mass-balance model to separate and quantify colloidal and solute redistributions in soil
C.R. Bern, O.A. Chadwick, A.S. Hartshorn, L.M. Khomo, J. Chorover
2011, Chemical Geology (282) 113-119
Studies of weathering and pedogenesis have long used calculations based upon low solubility index elements to determine mass gains and losses in open systems. One of the questions currently unanswered in these settings is the degree to which mass is transferred in solution (solutes) versus suspension (colloids). Here we show...
Nest success of snowy plovers (Charadrius nivosus) in the Southern high plains of Texas
S.T. Saalfeld, Warren C. Conway, D.A. Haukos, W.P. Johnson
2011, Waterbirds (34) 389-399
Snowy Plovers (Charadrius nivosus) nesting on edges of saline lakes within the Southern High Plains (SHP) of Texas are threatened by habitat degradation due to reduced artesian spring flow, making many saline lakes unsuitable for nesting and migrating shorebirds. Factors influencing nest success were evaluated, current nest success estimates in...
On the powerful use of simulations in the quake-catcher network to efficiently position low-cost earthquake sensors
K. Benson, T. Estrada, M. Taufer, J. Lawrence, E. Cochran
2011, Conference Paper, Proceedings - 2011 7th IEEE International Conference on eScience, eScience 2011
The Quake-Catcher Network (QCN) uses low-cost sensors connected to volunteer computers across the world to monitor seismic events. The location and density of these sensors' placement can impact the accuracy of the event detection. Because testing different special arrangements of new sensors could disrupt the currently active project, this would...
Self-potential investigations of a gravel bar in a restored river corridor
N. Linde, J. Doetsch, D. Jougnot, O. Genoni, Y. Durst, B. J. Minsley, T. Vogt, N. Pasquale, J. Luster
2011, Hydrology and Earth System Sciences (15) 729-742
Self-potentials (SP) are sensitive to water fluxes and concentration gradients in both saturated and unsaturated geological media, but quantitative interpretations of SP field data may often be hindered by the superposition of different source contributions and time-varying electrode potentials. Self-potential mapping and close to two months of SP monitoring on...
Hydrothermal hexahydrite spherules erupted during the 2008-2010 summit eruption of Kīlauea Volcano, Hawai`i'
Ken Hon, Tim R. Orr
2011, Bulletin of Volcanology (73) 1369-1375
Small (1-3 mm), hollow spherules of hexahydrite have been collected falling out of the magmatic gas plume downwind of Kīlauea’s summit vent. The spherules were observed on eight separate occasions during 2009-2010 when a lake of actively spattering lava was present ~150-200 m below the rim of the vent. The...
Soil erosion risks following the 2005 Southern Nevada Fire Complex: Chapter 8
John R. Matchett, Matthew L. Brooks
2011, Report, Southern Nevada Complex emergency stabilization and rehabilitation final report
No abstract available....
Developing an operational rangeland water requirement satisfaction index
Gabriel B. Senay, James P. Verdin, James Rowland
2011, International Journal of Remote Sensing (32) 6047-6053
Developing an operational water requirement satisfaction index (WRSI) for rangeland monitoring is an important goal of the famine early warning systems network. An operational WRSI has been developed for crop monitoring, but until recently a comparable WRSI for rangeland was not successful because of the extremely poor performance of the...
The Sculptured Hills of the Taurus Highlands: Implications for the relative age of Serenitatis, basin chronologies and the cratering history of the Moon
P. D. Spudis, D.E. Wilhelms, M.S. Robinson
2011, Journal of Geophysical Research E: Planets (116)
New images from the Lunar Reconnaissance Orbiter Camera show the distribution and geological relations of the Sculptured Hills, a geological unit widespread in the highlands between the Serenitatis and Crisium basins. The Sculptured Hills shows knobby, undulating, radially textured, and plains-like morphologies and in many places is indistinguishable from the...
Habitat selection by a focal predator (Canis lupus) in a multiprey ecosystem of the northern Rockies
B. Milakovic, K.L. Parker, D.D. Gustine, R.J. Lay, A.B.D. Walker, M.P. Gillingham
2011, Journal of Mammalogy (92) 568-582
Large predators respond to land cover and physiography that maximize the likelihood of encountering prey. Using locations from global positioning system-collared wolves (Canis lupus), we examined whether land cover, vegetation productivity or change, or habitat-selection value for ungulate prey species themselves most influenced patterns of selection by wolves in a...
Significant genetic differentiation between native and introduced silver carp (Hypophthalmichthys molitrix) inferred from mtDNA analysis
S.-F. Li, J.-W. Xu, Q.-L. Yang, C.H. Wang, D.C. Chapman, G. Lu
2011, Environmental Biology of Fishes (92) 503-511
Silver carp Hypophthalmichthys molitrix (Cyprinidae) is native to China and has been introduced to over 80 countries. The extent of genetic diversity in introduced silver carp and the genetic divergence between introduced and native populations remain largely unknown. In this study, 241 silver carp sampled from three major native rivers...
Geology and mammalian paleontology of the Horned Toad Hills, Mojave Desert, California, USA
S.R. May, M.O. Woodburne, E.H. Lindsay, L.B. Albright, A. Sarna-Wojcicki, E. Wan, D.B. Wahl
2011, Palaeontologia Electronica (14) 13
The Horned Toad Formation includes five lithostratigraphic members that record alluvial fan, fluvial, lake margin, and lacustrine deposition within a relatively small basin just south of the active Garlock fault during the late Miocene to early Pliocene. These sediments experienced northwest-southeast contractional deformation during the Pliocene-Pleistocene associated with basement-involved reverse...
The 16 May 1909 northern Great Plains earthquake
W. H. Bakun, M. C. Stickney, Gary C. Rogers
2011, Bulletin of the Seismological Society of America (101) 3065-3071
The largest historical earthquake in the northern Great Plains occurred on 16 May 1909. Our analysis of intensity assignments places the earthquake location (48.81° N, 105.38° W) close to the Montana–Saskatchewan border with an intensity magnitude MI of 5.3–5.4. Observations from two seismic observatories in Europe give an average Ms...
Diet and population metrics of the introduced blue catfish population in the Altamaha, River, GA
Timothy F. Bonvechio, Cecil A. Jennings
2011, Conference Paper, Proceedings of the Southeastern Association of Fish and Wildlife Agencies
Blue catfish (Ictalurus furcatus) were first detected in the Altamaha River, Georgia, during an access creel survey in 2005 and subsequently in 2006 during annual ictalurid sampling. Introduction of this species in the Altamaha River is believed to have occurred via escape from normal upstream reservoir releases from Lake Sinclair...
Soil-geomorphic significance of land surface characteristics in an arid mountain range, Mojave Desert, USA
D.R. Hirmas, R.C. Graham, K.J. Kendrick
2011, Catena (87) 408-420
Mountains comprise an extensive and visually prominent portion of the landscape in the Mojave Desert, California. Landform surface properties influence the role these mountains have in geomorphic processes such as dust flux and surface hydrology across the region. The primary goal of this study was to describe and quantify land...
Scattered P'P' waves observed at short distances
Paul S. Earle, Sebastian Rost, Peter M. Shearer, Christine Thomas
2011, Bulletin of the Seismological Society of America (101) 2843-2854
We detect previously unreported 1 Hz scattered waves at epicentral distances between 30° and 50° and at times between 2300 and 2450 s after the earthquake origin. These waves likely result from off-azimuth scattering of PKPbc to PKPbc in the upper mantle and crust and provide a new tool for...
Evaluating cost-efficiency and accuracy of hunter harvest survey designs
P.M. Lukacs, J.A. Gude, R.E. Russell, B.B. Ackerman
2011, Wildlife Society Bulletin (35) 430-437
Effective management of harvested wildlife often requires accurate estimates of the number of animals harvested annually by hunters. A variety of techniques exist to obtain harvest data, such as hunter surveys, check stations, mandatory reporting requirements, and voluntary reporting of harvest. Agencies responsible for managing harvested wildlife such as deer...
Vegetation trends following the 2005 Southern Nevada Complex Fire: Chapter 6
Robert C. Klinger, Matthew L. Brooks, Neil Frakes, John R. Matchett, Randy McKinley
2011, Report, Southern Nevada Complex emergency stabilization and rehabilitation final report
No abstract available....
Inventory and suitability of facilities within the Mid-Columbia Basin for the artificial propagation of Pacific lampreys
M.G. Mesa, H.E. Christiansen
2011, Report
No abstract available ...
Hydrogeology of the Hawaiian islands
Stephen B. Gingerich, Delwyn S. Oki
Maria del Carmen Cabrera, Luis Javier Lamban, Margarida Valverde, editor(s)
2011, Book chapter, Cuatro décadas de investigación y formación en aguas subterráneas: Libro homenaje al profesor Emilio Custodio
Volcanic-rock aquifers are the most extensive and productive aquifers in the Hawaiian Islands. These aquifers contain different types of groundwater systems depending on the geologic setting in which they occur. The most common groundwater systems include coastal freshwater-lens systems in the dike-free flanks of the volcanoes and dike-impounded systems within...
Chapter 39 The Edwardsburg Formation and related rocks, Windermere Supergroup, central Idaho, USA
Karen Lund, Karl V. Evans, John N. Alienikoff
2011, Memoir of the Geological Society of America (36) 437-448
In central Idaho, Neoproterozoic stratified rocks are engulfed by the Late Cretaceous Idaho batholith and by Eocene volcanic and plutonic rocks of the Challis event. Studied sections in the Gospel Peaks and Big Creek areas of west-central Idaho are in roof pendants of the Idaho batholith. A drill core section...
Linking biomarkers to reproductive success of caged fathead minnows in streams with increasing urbanization
J. Crago, Steven R. Corsi, D. Weber, R. Bannerman, R. Klaper
2011, Chemosphere (82) 1669-1674
Reproductive and oxidative stress biomarkers have been recommended as tools to assess the health of aquatic organisms. Though validated in the laboratory, there are few studies that tie a change in gene expression to adverse reproductive or population outcomes in the field. This paper looked at 17 streams with varying...
Growth of plutons by incremental emplacement of sheets in crystal-rich host: Evidence from Miocene intrusions of the Colorado River region, Nevada, USA
C. F. Miller, D.J. Furbish, B.A. Walker, L.L. Claiborne, G.C. Koteas, H.A. Bleick, J.S. Miller
2011, Tectonophysics (500) 65-77
Growing evidence supports the notion that plutons are constructed incrementally, commonly over long periods of time, yet field evidence for the multiple injections that seem to be required is commonly sparse or absent. Timescales of up to several million years, among other arguments, indicate that the dominant volume does...
Glacial influence on the geochemistry of riverine iron fluxes to the Gulf of Alaska and effects of deglaciation
A.W. Schroth, John Crusius, F. Chever, B.C. Bostick, O.J. Rouxel
2011, Geophysical Research Letters (38)
Riverine iron (Fe) derived from glacial weathering is a critical micronutrient source to ecosystems of the Gulf of Alaska (GoA). Here we demonstrate that the source and chemical nature of riverine Fe input to the GoA could change dramatically due to the widespread watershed deglaciation that is underway. We examine...
Fire frequency, area burned, and severity: A quantitative approach to defining a normal fire year
J.A. Lutz, Carl H. Key, C.A. Kolden, J.T. Kane, Jan W. Van Wagtendonk
2011, Fire Ecology (7) 51-65
Fire frequency, area burned, and fire severity are important attributes of a fire regime, but few studies have quantified the interrelationships among them in evaluating a fire year. Although area burned is often used to summarize a fire season, burned area may not be well correlated with either the number...
