Book review: Seismic acquisition from yesterday to tomorrow
Seth S. Haines
2012, The Leading Edge (January 2012) 102-102
In this 236-page volume, Julien Meunier presents a thorough description of P-wave seismic data acquisition. The treatment includes historical aspects along with some discussion of trends for the future, but the main focus is on present-day approaches and their theoretical underpinnings. Although it was written as the text for the...
Genetic diversity of a newly established population of golden eagles on the Channel Islands, California
Sarah A. Sonsthagen, Timothy J. Coonan, Brian C. Latta, George K. Sage, Sandra L. Talbot
2012, Biological Conservation (146) 116-122
Gene flow can have profound effects on the genetic diversity of a founding population depending on the number and relationship among colonizers and the duration of the colonization event. Here we used data from nuclear microsatellite and mitochondrial DNA control region loci to assess genetic diversity in golden eagles of...
Multi-scale remote sensing sagebrush characterization with regression trees over Wyoming, USA: laying a foundation for monitoring
Collin G. Homer, Cameron L. Aldridge, Debra K. Meyer, Spencer J. Schell
2012, International Journal of Applied Earth Observation and Geoinformation (14) 233-244
agebrush ecosystems in North America have experienced extensive degradation since European settlement. Further degradation continues from exotic invasive plants, altered fire frequency, intensive grazing practices, oil and gas development, and climate change – adding urgency to the need for ecosystem-wide understanding. Remote sensing is often identified as a key information...
Inflation rates, rifts, and bands in a pāhoehoe sheet flow
Richard P. Hoblitt, Tim R. Orr, Christina Heliker, Roger Denlinger, Ken Hon, Peter F. Cervelli
2012, Geosphere (8) 179-195
The margins of sheet flows—pāhoehoe lavas emplaced on surfaces sloping <2°—are typically delineated by structures that form to accommodate vertical flow inflation. We refer to these structures as inflation rifts. The surfaces of inflation rifts almost always exhibit bands of varying color and texture. Various explanations for the bands have...
Microanatomy of passerine hard-cornified tissues: Beak and claw structure of the black-capped chickadee (Poecile atricapillus)
Caroline R. Van Hemert, Colleen M. Handel, John E. Blake, Rhonda Swor, Todd M. O'Hara
2012, Journal of Morphology (273) 226-240
The microanatomy of healthy beaks and claws in passerine birds has not been well described in the literature, despite the importance of these structures in avian life. Histological processing of hard‐cornified tissues is notoriously challenging and only a few reports on effective techniques have been published. An emerging epizootic of...
Selection indicates preference in diverse habitats: A ground-nesting bird (Charadrius melodus) using reservoir shoreline
Michael J. Anteau, Mark H. Sherfy, Mark T. Wiltermuth
2012, PLoS ONE (7) e30347
Animals use proximate cues to select resources that maximize individual fitness. When animals have a diverse array of available habitats, those selected could give insights into true habitat preferences. Since the construction of the Garrison Dam on the Missouri River in North Dakota, Lake Sakakawea (SAK) has become an important...
Accounts of damage from historical earthquakes in the northeastern Caribbean to aid in the determination of their location and intensity magnitudes
Claudia H. Flores, Uri S. ten Brink, William H. Bakun
2012, Open-File Report 2011-1133
Earthquakes have been documented in the northeastern Caribbean since the arrival of Columbus to the Americas; written accounts of these felt earthquakes exist in various parts of the world. To better understand the earthquake cycle in the Caribbean, the records of earthquakes in earlier catalogs and historical documents from various...
Autumn migration of of Mississippi Flyway mallards as determined by satellite telemetry
David G. Krementz, Kwasi Asante, Luke W. Naylor
2012, Journal of Fish and Wildlife Management (3) 238-251
We used satellite telemetry to study autumn migration timing, routes, stopover duration, and final destinations of mallardsAnas platyrhynchos captured the previous spring in Arkansas from 2004 to 2007. Of those mallards that still had functioning transmitters on September 15 (n = 55), the average date when autumn migration began was October 23...
Effect of low-head lock and dam structures on migration and spawning of American shad and striped bass in the Cape Fear River, North Carolina
Joseph A. Smith, Joseph E. Hightower
2012, Transactions of the American Fisheries Society (141) 402-413
Anadromous fish populations within the Cape Fear River, North Carolina, have declined substantially since the late 1800s. Three low-head lock-and-dam (LD) structures on the river (LD-1–3) contributed to this decline by limiting access to upstream spawning habitat. We used egg sampling and sonic telemetry to examine the effects of the...
Trolling may intensify exploitation in crappie fisheries
K. O. Meals, A. W. Dunn, Leandro E. Miranda
2012, North American Journal of Fisheries Management (32) 325-332
In some parts of the USA, anglers targeting crappies Pomoxis spp. are transitioning from mostly stationary angling with a single pole around submerged structures to using multiple poles while drifting with the wind or under power. This shift in fishing methods could result in a change in catch efficiency, possibly increasing exploitation...
Long-term creep rates on the Hayward Fault: Evidence for controls on the size and frequency of large earthquakes
James J. Lienkaemper, Forrest S. McFarland, Robert W. Simpson, Roger G. Bilham, David A. Ponce, John Boatwright, S. John Caskey
2012, Bulletin of the Seismological Society of America (102) 31-41
The Hayward fault (HF) in California exhibits large (Mw 6.5–7.1) earthquakes with short recurrence times (161±65 yr), probably kept short by a 26%–78% aseismic release rate (including postseismic). Its interseismic release rate varies locally over time, as we infer from many decades of surface creep data. Earliest estimates of creep...
Using micro-seismicity and seismic velocities to map subsurface geologic and hydrologic structure within the Coso geothermal field, California
Joern Ole Kaven, Stephen H. Hickman, Nicholas C. Davatzes
2012, Conference Paper, Proceedings, Thirty-Seventh Workshop on Geothermal Reservoir Engineering
Geothermal reservoirs derive their capacity for fluid and heat transport in large part from faults and fractures. Micro-seismicity generated on such faults and fractures can be used to map larger fault structures as well as secondary fractures that add access to hot rock, fluid storage and recharge capacity necessary to...
Using assemblage data in ecological indicators: A comparison and evaluation of commonly available statistical tools
Joseph M. Smith, Martha E. Mather
2012, Ecological Indicators (13) 253-262
Ecological indicators are science-based tools used to assess how human activities have impacted environmental resources. For monitoring and environmental assessment, existing species assemblage data can be used to make these comparisons through time or across sites. An impediment to using assemblage data, however, is that these data are complex and...
Miocene magmatism in the Bodie Hills volcanic field, California and Nevada: A long-lived eruptive center in the southern segment of the ancestral Cascades arc
David A. John, Edward A. du Bray, Richard J. Blakely, Robert J. Fleck, Peter G. Vikre, Stephen E. Box, Barry C. Moring
2012, Geosphere (8) 44-97
The Middle to Late Miocene Bodie Hills volcanic field is a >700 km2, long-lived (∼9 Ma) but episodic eruptive center in the southern segment of the ancestral Cascades arc north of Mono Lake (California, U.S.). It consists of ∼20 major eruptive units, including 4 trachyandesite stratovolcanoes emplaced along the...
Spatial distribution of landslides triggered from the 2007 Niigata Chuetsu–Oki Japan Earthquake
Brian D. Collins, Robert E. Kayen, Yasuo Tanaka
2012, Engineering Geology (127) 14-26
Understanding the spatial distribution of earthquake-induced landslides from specific earthquakes provides an opportunity to recognize what to expect from future events. The July 16, 2007 Mw 6.6 (MJMA 6.8) Niigata Chuetsu–Oki Japan earthquake triggered hundreds of landslides in the area surrounding the coastal city of Kashiwazaki and provides one such opportunity to...
Factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley
Leandro E. Miranda, Daniel J. Dembkowski
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...
Effects of watershed densities of animal feeding operations on nutrient concentrations and estrogenic activity in agricultural streams
Serena Ciparis, Luke R. Iwanowicz, J. Reese Voshell
2012, Science of the Total Environment (414) 268-276
Application of manures from animal feeding operations (AFOs) as fertilizer on agricultural land can introduce nutrients and hormones (e.g. estrogens) to streams. A landscape-scale study was conducted in the Shenandoah River watershed (Virginia, USA) in order to assess the relationship between densities of AFOs in watersheds of agricultural streams and...
Utilizing multichannel electrical resistivity methods to examine the dynamics of the fresh water–seawater interface in two Hawaiian groundwater systems
Natasha T. Dimova, Peter W. Swarzenski, Henrieta Dulaiova, Craig R. Glenn
2012, Journal of Geophysical Research C: Oceans (117)
Multichannel electrical resistivity (ER) measurements were conducted at two contrasting coastal sites in Hawaii to obtain new information on the spatial scales and dynamics of the fresh water–seawater interface and rates of coastal groundwater exchange. At Kiholo Bay (located on the dry, Kona side of the Big Island) and at...
Effects of biotic disturbances on forest carbon cycling in the United States and Canada
James E. Vogelmann, Craig D. Allen, Jeffrey A. Hicke, Ankur R. Desai, Michael C. Dietze, Ronald J. Hall, Edward H. (Ted) Hogg
2012, Global Change Biology (18) 7-34
Forest insects and pathogens are major disturbance agents that have affected millions of hectares in North America in recent decades, implying significant impacts to the carbon (C) cycle. Here, we review and synthesize published studies of the effects of biotic disturbances on forest C cycling in the United States and...
In situ quantification of spatial and temporal variability of hyporheic exchange in static and mobile gravel-bed rivers
Donald O. Rosenberry, P. Zion Klos, Andrew Neal
2012, Hydrological Processes (26) 604-612
Seepage meters modified for use in flowing water were used to directly measure rates of exchange between surface and subsurface water in a gravel‐ and cobble bed river in western Pennsylvania, USA (Allegheny River, Qmean = 190 m3/s) and a sand‐ and gravel‐bed river in Colorado, USA (South Platte River,...
Influence of a thin veneer of low-hydraulic-conductivity sediment on modelled exchange between river water and groundwater in response to induced infiltration
Donald O. Rosenberry, Richard W. Healy
2012, Hydrological Processes (26) 544-557
A thin layer of fine‐grained sediment commonly is deposited at the sediment–water interface of streams and rivers during low‐flow conditions, and may hinder exchange at the sediment–water interface similar to that observed at many riverbank‐filtration (RBF) sites. Results from a numerical groundwater‐flow model indicate that a low‐permeability veneer reduces the...
Survey of hydrologic models and hydrologic data needs for tracking flow in the Rio Grande, north-central New Mexico, 2010
Anne Tillery, Jack R. Eggleston
2012, Scientific Investigations Report 2011-5207
The six Middle Rio Grande Pueblos have prior and paramount rights to deliveries of water from the Rio Grande for their use. When the pueblos or the Bureau of Indian Affairs Designated Engineer identifies a need for additional flow on the Rio Grande, the Designated Engineer is tasked with deciding...
Preliminary analysis of the hydrologic effects of temporary shutdowns of the Rondout-West Branch Water Tunnel on the groundwater-flow system in Wawarsing, New York
Frederick Stumm, Anthony Chu, Michael D. Como, Michael L. Noll
2012, Scientific Investigations Report 2012-5015
Flooding of streets and residential basements, and bacterial contamination of private-supply wells with Escherichia coli (E. coli) are recurring problems in the Rondout Valley near the Town of Wawarsing, Ulster County, New York. Leakage from the Rondout-West Branch (RWB) Water Tunnel and above-normal precipitation have been suspected of causing elevated...
Mineral Commodity Summaries 2012
2012, Mineral Commodity Summaries 2012
Each chapter of the 2012 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production and resources. The...
A caveat regarding diatom-inferred nitrogen concentrations in oligotrophic lakes
Heather A. Arnett, Jasmine E. Saros, M. Alisa Mast
2012, Journal of Paleolimnology (47) 277-291
Atmospheric deposition of reactive nitrogen (Nr) has enriched oligotrophic lakes with nitrogen (N) in many regions of the world and elicited dramatic changes in diatom community structure. The lakewater concentrations of nitrate that cause these community changes remain unclear, raising interest in the development of diatom-based transfer functions to infer...
