Fishes and amphibians as laboratory model organisms for toxicological research
Sandeep Mukhi, Leticia Torres, Bibek Sharma, Madhavi Billam, Reynaldo Patino
Jitendra Kumar Sundaray, Rajeeb Kumar Mohanty, Munilkumar Sukham, Subhendu Kumar Otta, editor(s)
2014, Book chapter, Frontiers in aquaculture
No abstract available....
Geophysical interpretation of U, Th, and rare earth element mineralization of the Bokan Mountain peralkaline granite complex, Prince of Wales Island, southeast Alaska
Anne E. McCafferty, Douglas B. Stoeser, Bradley S. Van Gosen
2014, Interpretation (2) SJ47-SJ63
A prospectivity map for rare earth element (REE) mineralization at the Bokan Mountain peralkaline granite complex, Prince of Wales Island, southeastern Alaska, was calculated from high-resolution airborne gamma-ray data. The map displays areas with similar radioelement concentrations as those over the Dotson REE-vein-dike system, which is characterized by moderately high...
Space use and resource selection by foraging Indiana bats at the northern edge of their distribution
David S. Jachowski, Joshua B. Johnson, Christopher A. Dobony, John W. Edwards, W. Mark Ford
2014, Endangered Species Research (24) 149-157
Despite 4 decades of conservation concern, managing endangered Indiana bat (Myotis sodalis) populations remains a difficult wildlife resource issue facing natural resource managers in the eastern United States. After small signs of population recovery, the recent emergence of white-nose syndrome has led to concerns of local and/or regional extirpation of...
Key recovery factors for the August 24, 2014, South Napa Earthquake
Kenneth W. Hudnut, Thomas M. Brocher, Carol S. Prentice, John Boatwright, Benjamin A. Brooks, Brad T. Aagaard, J. Luke Blair, Jon Peter B. Fletcher, Jemile Erdem, Charles W. Wicks Jr., Jessica R. Murray, Fred F. Pollitz, John O. Langbein, Jerry L. Svarc, David P. Schwartz, Daniel J. Ponti, Suzanne Hecker, Stephen B. DeLong, Carla M. Rosa, Brenda Jones, Rynn M. Lamb, Anne M. Rosinski, Timothy P. McCrink, Timothy E. Dawson, Gordon G. Seitz, Craig Glennie, Darren Hauser, Todd Ericksen, Dan Mardock, Don F. Hoirup, Jonathan D. Bray, Ron S. Rubin
2014, Open-File Report 2014-1249
Through discussions between the Federal Emergency Management Agency (FEMA) and the U.S. Geological Survey (USGS) following the South Napa earthquake, it was determined that several key decision points would be faced by FEMA for which additional information should be sought and provided by USGS and its partners. This report addresses...
Trap configuration and spacing influences parameter estimates in spatial capture-recapture models
Catherine C. Sun, Angela K. Fuller, J. Andrew Royle
2014, PLoS ONE (9)
An increasing number of studies employ spatial capture-recapture models to estimate population size, but there has been limited research on how different spatial sampling designs and trap configurations influence parameter estimators. Spatial capture-recapture models provide an advantage over non-spatial models by explicitly accounting for heterogeneous detection probabilities among individuals that...
A century of studying effusive eruptions in Hawaii
Katherine V. Cashman, Margaret T. Mangan
Michael P. Poland, T. Jane Takahashi, Claire M. Landowski, editor(s)
2014, Professional Paper 1801-9
The Hawaiian Volcano Observatory (HVO) was established as a natural laboratory to study volcanic processes. Since the most frequent form of volcanic activity in Hawai‘i is effusive, a major contribution of the past century of research at HVO has been to describe and quantify lava flow emplacement processes. Lava flow...
Conserving migratory mule deer through the umbrella of sage-grouse
H. E. Copeland, H. Sawyer, K. L. Monteith, D.E. Naugle, Amy Pocewicz, N. Graf, Matthew Kauffman
2014, Ecosphere (5) 1-16
Conserving migratory ungulates in increasingly human-dominated landscapes presents a difficult challenge to land managers and conservation practitioners. Nevertheless, ungulates may receive ancillary benefits from conservation actions designed to protect species of greater conservation priority where their ranges are sympatric. Greater Sage-Grouse (Centrocerus urophasianus), for example, have been proposed as an...
Red-cockaded Woodpecker Picoides borealis Microhabitat Characteristics and Reproductive Success in a Loblolly-Shortleaf Pine Forest
Douglas R. Wood, L. Wesley Burger Jr., Francisco Vilella
2014, The Open Ornithology Journal (7) 49-54
We investigated the relationship between red-cockaded woodpecker (Picoides borealis) reproductive success and microhabitat characteristics in a southeastern loblolly (Pinus taeda) and shortleaf (P. echinata) pine forest. From 1997 to 1999, we recorded reproductive success parameters of 41 red-cockaded woodpecker groups at the Bienville National Forest, Mississippi. Microhabitat characteristics were measured...
Succeeding as a non-traditional graduate student: Building the right support network
Robin L. DeBruyne, Edward F. Roseman
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2014, Book chapter, Future of fisheries: Perspectives for the next generation of professionals
No abstract available....
Late winter and early spring home range and habitat use of the endangered Carolina northern flying squirrel in western North Carolina
W. Mark Ford, Christine A. Kelly, Jane L. Rodrigue, Richard H. Odom, Douglas Newcomb, L. Michelle Gilley, Corinne A. Diggins
2014, Endangered Species Research (23) 73-82
The Carolina northern flying squirrel Glaucomys sabrinus coloratus is an endangered subspecies that is restricted to high elevation forests in the southern Appalachian Mountains. Owing to rugged terrain and nocturnal habits, the subspecies’ natural history, home range characteristics and habitat preferences are poorly known. We radio-tracked 3 female and 2 male Carolina...
Feedback of land subsidence on the movement and conjunctive use of water resources
Wolfgang Schmid, Randall T. Hanson, Stanley A. Leake, Joseph D. Hughes, Richard G. Niswonger
2014, Environmental Modelling and Software (62) 253-270
The dependency of surface- or groundwater flows and aquifer hydraulic properties on dewatering-induced layer deformation is not available in the USGS's groundwater model MODFLOW. A new integrated hydrologic model, MODFLOW-OWHM, formulates this dependency by coupling mesh deformation with aquifer transmissivity and storage and by linking land subsidence/uplift with deformation-dependent flows...
The nation’s top 25 construction aggregates producers
Jason C. Willett
2014, Aggregates Manager
U.S. production of construction aggregates in 2012 was 2.18 billion short tons valued at $17.6 billion, free on board (f.o.b.) at plant. In 2012, construction aggregates production remained virtually unchanged from the levels of the last two years because of a very slight increase compared with that of 2011 in...
US Topo Maps 2014: Program updates and research
Kristin A. Fishburn
2014, Conference Paper
The U. S. Geological Survey (USGS) US Topo map program is now in year two of its second three-year update cycle. Since the program was launched in 2009, the product and the production system tools and processes have undergone enhancements that have made the US Topo maps a popular success...
Ongoing drought-induced uplift in the western United States.
Adrian Antal Borsa, Duncan Carr Agnew, Daniel R. Cayan
2014, Science (345) 1587-1590
The western United States has been experiencing severe drought since 2013. The solid earth response to the accompanying loss of surface and near-surface water mass should be a broad region of uplift. We use seasonally adjusted time series from continuously operating global positioning system stations to measure this uplift, which...
Mercury and methylmercury stream concentrations in a Coastal Plain watershed: A multi-scale simulation analysis
Christopher D. Knightes, Heather E. Golden, Celeste A. Journey, Gary M. Davis, Paul Conrads, Mark Marvin-DiPasquale, Mark E. Brigham, Paul M. Bradley
2014, Environmental Pollution (187) 182-192
Mercury is a ubiquitous global environmental toxicant responsible for most US fish advisories. Processes governing mercury concentrations in rivers and streams are not well understood, particularly at multiple spatial scales. We investigate how insights gained from reach-scale mercury data and model simulations can be applied at broader watershed scales using...
Rapidly spreading seagrass invades the Caribbean with unknown ecological consequences
Caroline S. Rogers, Demian A Willette, Jeff Miller
2014, Frontiers in Ecology and the Environment (12) 546-547
The non-native seagrass Halophila stipulacea has spread rapidly throughout the Caribbean Sea (Willette et al. 2014); without additional research, the ecological ramifications of this invasion are difficult to predict. Biodiversity, connectivity of marine ecosystems, and recovery of degraded coral reefs could all be affected. The invasive seagrass, native to the...
Mineral resource of the month: Strontium
Joyce A. Ober
2014, Earth (January 2015)
Strontium occurs commonly in nature, ranking as the 15th most abundant chemical element on Earth. Only two minerals contain sufficient strontium, however, to be used commercially to produce strontium compounds: Strontianite (strontium carbonate) has a higher strontium content, but celestite (strontium sulfate) is by far the most abundant strontium mineral....
Trouble in the aquatic world: How wildlife professionals are battling amphibian declines
Deanna H. Olson, Tara E. Chestnut
2014, The Wildlife Professional (8) 28-31
A parasitic fungus, similar to the one that caused the extinction of numerous tropical frog and toad species, is killing salamanders in Europe. Scientists first identified the fungus, Batrachochytrium salamandrivorans, in 2013 as the culprit behind the death of fire salamanders (Salamandra salamandra) in the Netherlands (Martel et al....
Aquatic invasive species: Lessons from cancer research
Adam J. Sepulveda, Andrew Ray, Robert K. Al-Chokhachy, Clint C. Muhlfeld, Robert E. Gresswell, Jackson A. Gross, Jeffrey L. Kershner
2014, American Scientist (100) 234-242
Aquatic invasive species are disrupting ecosystems with increasing frequency. Successful control of these invasions has been rare: Biologists and managers have few tools for fighting aquatic invaders. In contrast, the medical community has long worked to develop tools for preventing and fighting cancer. Its successes are marked by a coordinated...
Geomorphic evidence for enhanced Pliocene-Quaternary faulting in the northwestern Basin and Range
Magdalena A Ellis, Barnes Jason B, Joseph P. Colgan
2014, Lithosphere (7) 59-72
Mountains in the U.S. Basin and Range Province are similar in form, yet they have different histories of deformation and uplift. Unfortunately, chronicling fault slip with techniques like thermochronology and geodetics can still leave sizable, yet potentially important gaps at Pliocene–Quaternary (∼105–106 yr) time scales. Here, we combine existing geochronology...
A spatial analysis of population dynamics and climate change in Africa: potential vulnerability hot spots emerge where precipitation declines and demographic pressures coincide
David López-Carr, Narcisa G. Pricope, Juliann E. Aukema, Marta M. Jankowska, Christopher C. Funk, Gregory J. Husak, Joel C. Michaelsen
2014, Population and Environment (35) 323-339
We present an integrative measure of exposure and sensitivity components of vulnerability to climatic and demographic change for the African continent in order to identify “hot spots” of high potential population vulnerability. Getis-Ord Gi* spatial clustering analyses reveal statistically significant locations of spatio-temporal precipitation decline coinciding with high population density and...
Multiple plumage traits convey information about age and within-age-class qualities of a canopy-dwelling songbird, the Cerulean Warbler
Than J. Boves, David A. Buehler, Petra Bohall Wood, Amanda D. Rodewald, Jeffrey L. Larkin, Patrick D. Keyser, T. Ben Wigley
2014, The Auk (131) 20-31
Colorful plumage traits in birds may convey multiple, redundant, or unreliable messages about an individual. Plumage may reliably convey information about disparate qualities such as age, condition, and parental ability because discrete tracts of feathers may cause individuals to incur different intrinsic or extrinsic costs. Few studies have examined the...
Anadromous sea lampreys (Petromyzon marinus) are ecosystem engineers in a spawning tributary
Robert S. Hogg, Stephen M. Coghlan Jr., Joseph D. Zydlewski, Kevin S. Simon
2014, Freshwater Biology (59) 1294-1307
Sea lampreys (Petromyzon marinus) disturb the substratum during nest construction and alter the physical habitat, potentially affecting other stream organisms. We quantified differences in depth, velocity, fine-sediment coverage, embeddedness, intragravel permeability and benthic invertebrate assemblages (density and diversity) among nest mounds, nest pits and undisturbed reference locations...
A comparison of two sampling designs for fish assemblage assessment in a large river
Ian A. Kiraly, Stephen M. Coghlan Jr., Joseph D. Zydlewski, Daniel Hayes
2014, Transactions of the American Fisheries Society (143) 508-518
We compared the efficiency of stratified random and fixed-station sampling designs to characterize fish assemblages in anticipation of dam removal on the Penobscot River, the largest river in Maine. We used boat electrofishing methods in both sampling designs. Multiple 500-m transects were selected randomly and electrofished in each of nine...
Influence of habitat characteristics on shore-spawning kokanee
Steven L. Whitlock, Michael C. Quist, Andrew M. Dux
2014, Transactions of the American Fisheries Society (143) 1404-1418
Sockeye Salmon Oncorhynchus nerka and kokanee (lacustrine Sockeye Salmon) commonly spawn in both lentic and lotic environments; however, the habitat requirements of shore spawners are virtually unknown relative to those of stream spawners. A laboratory experiment and an in situ incubation study were conducted to better understand the influence of habitat characteristics...
