Comment on “Historical perspective on seismic hazard to Hispaniola and the northeast Caribbean region” by U. ten Brink et al.
Carol S. Prentice, Paul Mann, Luis R. Pena
2013, Journal of Geophysical Research B: Solid Earth (118) 1602-1605
The analysis of historical earthquakes in the northeastern Caribbean by ten Brink et al. [2011, hereafter TB11] addresses the occurrence of large and destructive historical earthquakes associated with the North American-Caribbean plate boundary. One conclusion presented in TB11 is that the recurrence interval for large earthquakes on the left-lateral, strike-slip...
Bathymetric map, area/capacity table, and sediment volume estimate for Millwood Lake near Ashdown, Arkansas, 2013
Joseph M. Richards, W. Reed Green
2013, Scientific Investigations Map 3282
Millwood Lake, in southwestern Arkansas, was constructed and is operated by the U.S. Army Corps of Engineers (USACE) for flood-risk reduction, water supply, and recreation. The lake was completed in 1966 and it is likely that with time sedimentation has resulted in the reduction of storage capacity of the lake....
Technical evaluation of a total maximum daily load model for Upper Klamath and Agency Lakes, Oregon
Tamara M. Wood, Susan A. Wherry, James L. Carter, James S. Kuwabara, Nancy S. Simon, Stewart A. Rounds
2013, Open-File Report 2013-1262
We reviewed a mass balance model developed in 2001 that guided establishment of the phosphorus total maximum daily load (TMDL) for Upper Klamath and Agency Lakes, Oregon. The purpose of the review was to evaluate the strengths and weaknesses of the model and to determine whether improvements could be made...
Wildlife mortality investigation and disease research: contributions of the USGS National Wildlife Health Center to endangered species management and recovery
Christopher J. Brand
2013, EcoHealth (10) 446-454
The U.S. Geological Survey—National Wildlife Health Center (NWHC) provides diagnostic services, technical assistance, applied research, and training to federal, state, territorial, and local government agencies and Native American tribes on wildlife diseases and wildlife health issues throughout the United States and its territories, commonwealth, and freely associated states. Since 1975,...
Experimental evidence for evolved tolerance to avian malaria in a wild population of low elevation Hawai`i `Amakihi (Hemignathus virens)
Carter T. Atkinson, Katerine S. Saili, Ruth B. Utzurrum, Susan I. Jarvi
2013, EcoHealth (10) 366-375
Introduced vector-borne diseases, particularly avian malaria (Plasmodium relictum) and avian pox virus (Avipoxvirus spp.), continue to play significant roles in the decline and extinction of native forest birds in the Hawaiian Islands. Hawaiian honeycreepers are particularly susceptible to avian malaria and have survived into this century largely because of persistence...
Real-time piscicide tracking using Rhodamine WT dye for support of application, transport, and deactivation strategies in riverine environments
Patrick Ryan Jackson, Jonathan D. Lageman
2013, Scientific Investigations Report 2013-5211
Piscicide applications in riverine environments are complicated by the advection and dispersion of the piscicide by the flowing water. Proper deactivation of the fish toxin is required outside of the treatment reach to ensure that there is minimal collateral damage to fisheries downstream or in connecting and adjacent water bodies....
Geologic assessment of undiscovered oil and gas resources: Oligocene Frio and Anahuac Formations, United States Gulf of Mexico coastal plain and State waters
Sharon M. Swanson, Alexander W. Karlsen, Brett J. Valentine
2013, Open-File Report 2013-1257
The Oligocene Frio and Anahuac Formations were assessed as part of the 2007 U.S. Geological Survey (USGS) assessment of Tertiary strata of the U.S. Gulf of Mexico Basin onshore and State waters. The Frio Formation, which consists of sand-rich fluvio-deltaic systems, has been one of the largest hydrocarbon producers from...
Stratigraphy and paleogeographic significance of the Pennsylvanian-Permian Bird Spring Formation in the Ship Mountains, southeastern California
Paul Stone, Calvin H. Stevens, Keith A. Howard, Thomas D. Hoisch
2013, Scientific Investigations Report 2013-5109
A thick sequence of limestone, dolomite, and minor sandstone assigned to the Pennsylvanian and lower Permian Bird Spring Formation is exposed in the Ship Mountains about 85 kilometers (km) southwest of Needles, California, in the eastern Mojave Desert. These strata provide a valuable reference section of the Bird Spring Formation...
Hurricane Isaac: observations and analysis of coastal change
Kristy K. Guy, Hilary F. Stockdon, Nathaniel G. Plant, Kara S. Doran, Karen L.M. Morgan
2013, Open-File Report 2013-1270
Understanding storm-induced coastal change and forecasting these changes require knowledge of the physical processes associated with a storm and the geomorphology of the impacted coastline. The primary physical process of interest is sediment transport that is driven by waves, currents, and storm surge associated with storms. Storm surge, which is...
Geologic map of Oldonyo Lengai (Oldoinyo Lengai) Volcano and surroundings, Arusha Region, United Republic of Tanzania
David R. Sherrod, Masota M. Magigita, Shimba Kwelwa
2013, Open-File Report 2013-1306
The geology of Oldonyo Lengai volcano and the southernmost Lake Natron basin, Tanzania, is presented on this geologic map at scale 1:50,000. The map sheet can be downloaded in pdf format for online viewing or ready to print (48 inches by 36 inches). A 65-page explanatory pamphlet describes the geologic history...
A spatial age-structured model for describing sea lamprey (Petromyzon marinus) population dynamics
Jason M. Robinson, Michael J. Wilberg, Jean V. Adams, Michael L. Jones
2013, Canadian Journal of Fisheries and Aquatic Sciences (70) 1709-1722
The control of invasive sea lampreys (Petromyzon marinus) presents large scale management challenges in the Laurentian Great Lakes. No modeling approach has been developed that describes spatial dynamics of lamprey populations. We developed and validated a spatial and age-structured model and applied it to a sea lamprey population...
Comparison of select hematology and serum chemistry analtyes between wild-caught and aquarium-housed lake sturgeon (Acipenser fulvescens)
Louis DiVincenti Jr., Heather Priest, Kyle J. Walker, Jeffrey D. Wyatt, Dawn Dittman
2013, Journal of Zoo and Wildlife Medicine (44) 957-964
Hematology and serum chemistry analytes were compared between wild-caught and aquarium-housed lake sturgeon (Acipenser fulvescens) to potentially improve understanding of medical issues in lake sturgeon. Blood samples were taken from 30 lake sturgeon exhibited in 11 institutions in the United States and from 23 experimentally stocked lake sturgeon caught in...
Effect of simulated tree canopy removal on a municipal wellfield in the Puget Sound aquifer system, Thurston County, Washington
Kenneth H. Johnson
2013, Open-File Report 2013-1291
Effects of tree canopy removal on a wellfield were simulated using a groundwater flow model characteristic of hydrogeologic settings in the Puget Sound aquifer system. Effects were estimated according to simulated changes in flow patterns that may result from tree canopy removal associated with varying degrees of residential development. The...
Correcting length-frequency distributions for imperfect detection
André R. Breton, John A. Hawkins, Dana L. Winkelman
2013, North American Journal of Fisheries Management (33) 1156-1165
Sampling gear selects for specific sizes of fish, which may bias length-frequency distributions that are commonly used to assess population size structure, recruitment patterns, growth, and survival. To properly correct for sampling biases caused by gear and other sources, length-frequency distributions need to be corrected for imperfect detection. We describe...
Triggered tremor sweet spots in Alaska
Joan Gomberg, Stephanie Prejean
2013, Journal of Geophysical Research B: Solid Earth (118) 6203-6218
To better understand what controls fault slip along plate boundaries, we have exploited the abundance of seismic and geodetic data available from the richly varied tectonic environments composing Alaska. A search for tremor triggered by 11 large earthquakes throughout all of seismically monitored Alaska reveals two tremor “sweet spots”—regions where...
Using occupancy models to investigate the prevalence of ectoparasitic vectors on hosts: an example with fleas on prairie dogs
David A. Eads, Dean E. Biggins, Paul F. Doherty Jr., Kenneth L. Gage, Kathryn P. Huyvaert, Dustin H. Long, Michael F. Antolin
2013, International Journal for Parasitology: Parasites and Wildlife (2) 246-256
Ectoparasites are often difficult to detect in the field. We developed a method that can be used with occupancy models to estimate the prevalence of ectoparasites on hosts, and to investigate factors that influence rates of ectoparasite occupancy while accounting for imperfect detection. We describe the approach using a study...
Relations between DNA- and RNA-based molecular methods for cyanobacteria and microcystin concentration at Maumee Bay State Park Lakeside Beach, Oregon, Ohio, 2012
Erin A. Stelzer, Keith A. Loftin, Pamela Struffolino
2013, Scientific Investigations Report 2013-5189
Water samples were collected from Maumee Bay State Park Lakeside Beach, Oregon, Ohio, during the 2012 recreational season and analyzed for selected cyanobacteria gene sequences by DNA-based quantitative polymerase chain reaction (qPCR) and RNA-based quantitative reverse-transcription polymerase chain reaction (qRT-PCR). Results from the four DNA assays (for quantifying total cyanobacteria,...
NGA-West 2 Equations for predicting PGA, PGV, and 5%-Damped PSA for shallow crustal earthquakes
David M. Boore, Jon P. Stewart, Emel Seyhan, Gail M. Atkinson
2013, Earthquake Spectra (30) 1057-1085
We provide ground-motion prediction equations for computing medians and standard deviations of average horizontal component intensity measures (IMs) for shallow crustal earthquakes in active tectonic regions. The equations were derived from a global database with M 3.0–7.9 events. We derived equations for the primary M- and distance-dependence of the IMs...
Environmental survey in the Tuul and Orkhon River basins of north-central Mongolia, 2010: Metals and other elements in streambed sediment and floodplain soil
William G. Brumbaugh, Donald E. Tillitt, Thomas W. May, Ch. Javzan, V. T. Komov
2013, Environmental Monitoring and Assessment (185) 8991-9008
Streambed sediment and subsurface floodplain soil were sampled for elemental analyses from 15 locations in river basins of north-central Mongolia during August 2010. Our primary objective was to conduct a reconnaissance-level assessment of potential inputs of toxicologically important metals and metalloids to Lake Baikal, Russia, that might originate from mining...
Lidar-revised geologic map of the Olalla 7.5' quadrangle, King, Kitsap, and Pierce Counties, Washington
Rowland W. Tabor, Ralph A. Haugerud, Derek B. Booth, Kathy Goetz Troost
2013, Scientific Investigations Map 3277
The Olalla 7.5' quadrangle, which lies almost in the center of the Puget Lowland, displays the broad range of geologic environments typical of the region. The upland plain is fluted by the passage of the great continental ice sheet that last covered the area about 17,000 (14,000 radiocarbon) years ago....
Hydrogeology and water quality in the Snake River alluvial aquifer at Jackson Hole Airport, Jackson, Wyoming, water years 2011 and 2012
Peter R. Wright
2013, Scientific Investigations Report 2013-5184
The hydrogeology and water quality of the Snake River alluvial aquifer at the Jackson Hole Airport in northwest Wyoming was studied by the U.S. Geological Survey, in cooperation with the Jackson Hole Airport Board, during water years 2011 and 2012 as part of a followup to a previous baseline study...
Fluvial rainbow trout contribute to the colonization of steelhead (Oncorhynchus mykiss) in a small stream
Dana E. Weigel, Patrick J. Connolly, Madison S. Powell
2013, Environmental Biology of Fishes (97) 1149-1159
Life history polymorphisms provide ecological and genetic diversity important to the long term persistence of species responding to stochastic environments. Oncorhynchus mykiss have complex and overlapping life history strategies that are also sympatric with hatchery populations. Passive integrated transponder (PIT) tags and parentage analysis were used to identify the life...
The effect of sampling rate and anti-aliasing filters on high-frequency response spectra
David M. Boore, Christine Goulet
2013, Bulletin of Earthquake Engineering (12) 203-216
The most commonly used intensity measure in ground-motion prediction equations is the pseudo-absolute response spectral acceleration (PSA), for response periods from 0.01 to 10 s (or frequencies from 0.1 to 100 Hz). PSAs are often derived from recorded ground motions, and these motions are usually filtered to remove high and...
Chronology of Eocene-Miocene sequences on the New Jersey shallow shelf: implications for regional, interregional, and global correlations
James V. Browning, Kenneth G. Miller, Peter J. Sugarman, John Barron, Francine M.G. McCarthy, Denise K. Kulhanek, Miriam E. Katz, Mark D. Feigenson
2013, Geosphere (9) 1434-1456
Integrated Ocean Drilling Program Expedition 313 continuously cored and logged latest Eocene to early-middle Miocene sequences at three sites (M27, M28, and M29) on the inner-middle continental shelf offshore New Jersey, providing an opportunity to evaluate the ages, global correlations, and significance of sequence boundaries. We provide a chronology for...
Using age of colonizing douglas-fir for the dating of young geomorphic surfaces: a case study
Thomas C. Pierson
2013, Book chapter, Dating torrential processes on fans and cones
Dating of many types of young (<500 year), dynamic, geomorphic landforms (e.g. mass-movement erosional tracks and deposits, alluvial terraces, flood plains, etc.) for purposes of hazard assessment and mitigation commonly requires greater dating precision than is available through radiocarbon dating or other methods. Ages of trees growing on landform surfaces...
