Diel activity of Gulf of Mexico sturgeon in a northwest Florida bay
B.M. Wrege, M.S. Duncan, J. Jeffery Isely
2011, Journal of Applied Ichthyology (27) 322-326
In this paper, we assess patterns in activity of Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi over a 24-h period in the Pensacola bay system, Florida. Although seasonal migration of sturgeon is well documented, little information is available pertaining to daily variation in activity. We surgically implanted 58 Gulf sturgeon...
Mountain treelines: A roadmap for research orientation
George P. Malanson, Lynn M. Resler, Maaike Y. Bader, Fredrich-Karl Holtmeier, David R. Butler, Daniel J. Weiss, Lori D. Daniels, Daniel B. Fagre
2011, Arctic, Antarctic, and Alpine Research (43) 167-177
For over 100 years, mountain treelines have been the subject of varied research endeavors and remain a strong area of investigation. The purpose of this paper is to examine aspects of the epistemology of mountain treeline research-that is, to investigate how knowledge on treelines has been acquired and the changes...
Lithosphere-asthenosphere interaction beneath the western United States from the joint inversion of body-wave traveltimes and surface-wave phase velocities
M. Obrebski, R. M. Allen, F. Pollitz, S.-H. Hung
2011, Geophysical Journal International (185) 1003-1021
The relation between the complex geological history of the western margin of the North American plate and the processes in the mantle is still not fully documented and understood. Several pre-USArray local seismic studies showed how the characteristics of key geological features such as the Colorado Plateau and the Yellowstone...
Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009
H.-A. Wu, Y.-H. Zhang, X.-Y. Chen, T. Lu, J. Du, Z.-H. Sun, G.-T. Sun
2011, Chinese Journal of Geophysics (Acta Geophysica Sinica) (54) 673-680
DInSAR technique based on time series of SAR images has been very popular to monitor ground stow deformation in recent years such as permanent scatterers (PS) method small baseline subsets (SBAS) method and coherent targets (CT) method. By taking advantage of PS method and CT method in this paper small...
Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA
M.C. Campbell, T.G. Fisher, R.J. Goble
2011, Quaternary Research (75) 411-416
Optically stimulated luminescence dated sand dunes and Pleistocene beach ridges in northwest Ohio are used to reconstruct landscape modification more than 5000. yr after deglaciation. Four of the OSL ages (13.3-11.1. ka) cluster around the Younger Dryas cold event, five ages (10.8-8.2. ka) cluster around the Preboreal, one young age...
Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States
S. E. Hough, M. Page
2011, Journal of Geophysical Research B: Solid Earth (116)
At the heart of the conundrum of seismogenesis in the New Madrid Seismic Zone is the apparently substantial discrepancy between low strain rate and high recent seismic moment release. In this study we revisit the magnitudes of the four principal 1811–1812 earthquakes using intensity values determined from individual assessments from...
Effect of anaesthetics MS-222 and clove oil on blood biochemical parameters of juvenile Siberian sturgeon (Acipenser baerii)
G. Feng, P. Zhuang, L. Zhang, B. Kynard, X. Shi, M. Duan, J. Liu, X. Huang
2011, Journal of Applied Ichthyology (27) 595-599
The effects of MS-222 and clove oil on blood biochemical parameters of juvenile Siberian sturgeon (Acipenser baerii) were studied. MS-222 caused higher glucose (GLU) concentrations in anaesthetic test groups than for the control group. Triglyceride (TGL) concentrations of fish in the 140 and 160mgL-1 groups were also significantly higher than...
Comparison of Two Parametric Methods to Estimate Pesticide Mass Loads in California's Central Valley
D.K. Saleh, D. L. Lorenz, Joseph L. Domagalski
2011, Journal of the American Water Resources Association (47) 254-264
Mass loadings were calculated for four pesticides in two watersheds with different land uses in the Central Valley, California, by using two parametric models: (1) the Seasonal Wave model (SeaWave), in which a pulse signal is used to describe the annual cycle of pesticide occurrence in a stream, and (2)...
A comparison of recharge rates in aquifers of the United States based on groundwater-age data
P.B. McMahon, Niel Plummer, J.K. Böhlke, S.D. Shapiro, S.R. Hinkle
2011, Hydrogeology Journal (19) 779-800
An overview is presented of existing groundwater-age data and their implications for assessing rates and timescales of recharge in selected unconfined aquifer systems of the United States. Apparent age distributions in aquifers determined from chlorofluorocarbon, sulfur hexafluoride, tritium/helium-3, and radiocarbon measurements from 565 wells in 45 networks were used to...
What do we know about metal recycling rates?
T.E. Graedel, J. Allwood, J.-P. Birat, M. Buchert, C. Hageluken, B.K. Reck, S.F. Sibley, G. Sonnemann
2011, Journal of Industrial Ecology (15) 355-366
The recycling of metals is widely viewed as a fruitful sustainability strategy, but little information is available on the degree to which recycling is actually taking place. This article provides an overview on the current knowledge of recycling rates for 60 metals. We propose various recycling metrics, discuss relevant aspects...
Comparison of phenolic compounds and the effects of invasive and native species in East Asia: Support for the novel weapons hypothesis
Y.-O. Kim, E.J. Lee
2011, Ecological Research (26) 87-94
One prediction of the novel weapons hypothesis (NWH) for the dominance of exotic invasive plant species is that the allelopathic effects of successful invaders will, in general, be more biochemically inhibitory to native species and microbes in invaded regions than the native plants themselves. However, no study has compared biochemical...
Organic geochemical investigation and coal-bed methane characteristics of the Guasare coals (Paso Diablo mine, western Venezuela)
K. Quintero, M. Martinez, P. Hackley, G. Marquez, G. Garban, I. Esteves, M. Escobar
2011, Energy Sources, Part A: Recovery, Utilization and Environmental Effects (33) 959-971
The aim of this work was to carry out a geochemical study of channel samples collected from six coal beds in the Marcelina Formation (Zulia State, western Venezuela) and to determine experimentally the gas content of the coals from the Paso Diablo mine. Organic geochemical analyses by gas chromatography-mass spectrometry...
Analysis of passive surface-wave noise in surface microseismic data and its implications
F. Forghani-Arani, M. Willis, S. Haines, M. Batzle, M. Davidson
2011, SEG Technical Program Expanded Abstracts (30) 1493-1498
Tight gas reservoirs are projected to be a major portion of future energy resources. Because of their low permeability, hydraulic fracturing of these reservoirs is required to improve the permeability and reservoir productivity. Passive seismic monitoring is one of the few tools that can be used to characterize the changes...
Evidence for predatory control of the invasive round goby
C.P. Madenjian, M.A. Stapanian, L.D. Witzel, D.W. Einhouse, S.A. Pothoven, H.L. Whitford
2011, Biological Invasions (13) 987-1002
We coupled bioenergetics modeling with bottom trawl survey results to evaluate the capacity of piscivorous fish in eastern Lake Erie to exert predatory control of the invading population of round goby Neogobius melanostomus. In the offshore (>20 m deep) waters of eastern Lake Erie, burbot Lota lota is a native...
Rift Valley fever virus infection in African Buffalo (Syncerus caffer) herds in rural South Africa: Evidence of interepidemic transmission
A.D. LaBeaud, P.C. Cross, W.M. Getz, A. Glinka, C.H. King
2011, American Journal of Tropical Medicine and Hygiene (84) 641-646
Rift Valley fever virus (RVFV) is an emerging biodefense pathogen that poses significant threats to human and livestock health. To date, the interepidemic reservoirs of RVFV are not well defined. In a longitudinal survey of infectious diseases among African buffalo during 2000-2006, 550 buffalo were tested for antibodies against RVFV...
Lava tube shatter rings and their correlation with lava flux increases at Kīlauea Volcano, Hawai‘i
T.R. Orr
2011, Bulletin of Volcanology (73) 335-346
Shatter rings are circular to elliptical volcanic features, typically tens of meters in diameter, which form over active lava tubes. They are typified by an upraised rim of blocky rubble and a central depression. Prior to this study, shatter rings had not been observed forming, and, thus, were interpreted in...
Mg-spinel lithology: A new rock type on the lunar farside
C.M. Pieters, S. Besse, J. Boardman, B. Buratti, L. Cheek, R. N. Clark, J. #NAME? Combe, D. Dhingra, J.N. Goswami, R.O. Green, J.W. Head, P. Isaacson, R. Klima, G. Kramer, S. Lundeen, E. Malaret, T. McCord, J. Mustard, J. Nettles, N. Petro, C. Runyon, M. Staid, J. Sunshine, L.A. Taylor, K. Thaisen, S. Tompkins, J. Whitten
2011, Journal of Geophysical Research E: Planets (116)
High-resolution compositional data from Moon Mineralogy Mapper (M 3) for the Moscoviense region on the lunar farside reveal three unusual, but distinctive, rock types along the inner basin ring. These are designated "OOS" since they are dominated by high concentrations of orthopyroxene, olivine, and Mg-rich spinel, respectively. The OOS occur...
Classifying the hydrologic function of prairie potholes with remote sensing and GIS
Jennifer R. Rover, C.K. Wright, Ned H. Euliss Jr., David M. Mushet, Bruce K. Wylie
2011, Wetlands (31) 319-327
A sequence of Landsat TM/ETM+ scenes capturing the substantial surface water variations exhibited by prairie pothole wetlands over a drought to deluge period were analyzed in an attempt to determine the general hydrologic function of individual wetlands (recharge, flow-through, and discharge). Multipixel objects (water bodies) were clustered according to their...
Early Mesozoic paleogeography and tectonic evolution of the western United States: Insights from detrital zircon U-Pb geochronology, Blue Mountains Province, northeastern Oregon
Todd A. LaMaskin, J.D. Vervoort, R.J. Dorsey, J.E. Wright
2011, Geological Society of America Bulletin (123) 1939-1965
This study assesses early Mesozoic provenance linkages and paleogeographic-tectonic models for the western United States based on new petrographic and detrital zircon data from Triassic and Jurassic sandstones of the "Izee" and Olds Ferry terranes of the Blue Mountains Province, northeastern Oregon. Triassic sediments were likely derived from the Baker...
Factors driving spatial and temporal variation in production and production/biomass ratio of stream-resident brown trout (Salmo trutta) in Cantabrian streams
J. Lobon-Cervia, G. Gonzalez, P. Budy
2011, Freshwater Biology (56) 2272-2287
1.The objective was to identify the factors driving spatial and temporal variation in annual production (PA) and turnover (production/biomass) ratio (P/BA) of resident brown trout Salmo trutta in tributaries of the Rio Esva (Cantabrian Mountains, Asturias, north-western Spain). We examined annual production (total production of all age-classes over a year)...
High hunting pressure selects for earlier birth date: Wild boar as a case study
M. Gamelon, A. Besnard, J.-M. Gaillard, S. Servanty, E. Baubet, S. Brandt, O. Gimenez
2011, Evolution (65) 3100-3112
Exploitation by humans affects the size and structure of populations. This has evolutionary and demographic consequences that have typically being studied independent of one another. We here applied a framework recently developed applying quantitative tools from population ecology and selection gradient analysis to quantify the selection on a quantitative trait-birth...
Movements of wolves at the northern extreme of the species' range, including during four months of darkness
L.D. Mech, H.D. Cluff
2011, PLoS ONE (6)
Information about wolf (Canis lupus) movements anywhere near the northern extreme of the species' range in the High Arctic (<75??N latitude) are lacking. There, wolves prey primarily on muskoxen (Ovibos moschatus) and must survive 4 months of 24 hr/day winter darkness and temperatures reaching -53 C. The extent to which...
Factors affecting stream nutrient loads: A synthesis of regional SPARROW model results for the continental United States
Stephen D. Preston, Richard B. Alexander, Gregory E. Schwarz, Charles G. Crawford
2011, Journal of the American Water Resources Association (47) 891-915
We compared the results of 12 recently calibrated regional SPARROW (SPAtially Referenced Regressions On Watershed attributes) models covering most of the continental United States to evaluate the consistency and regional differences in factors affecting stream nutrient loads. The models – 6 for total nitrogen and 6 for total phosphorus –...
Remote sensing of soil moisture using airborne hyperspectral data
M. Finn, M. Lewis, D. Bosch, Mario Giraldo, K. Yamamoto, D. Sullivan, R. Kincaid, R. Luna, G. Allam, Craig Kvien, Murray Williams
2011, GIScience and Remote Sensing (48) 522-540
Landscape assessment of soil moisture is critical to understanding the hydrological cycle at the regional scale and in broad-scale studies of biophysical processes affected by global climate changes in temperature and precipitation. Traditional efforts to measure soil moisture have been principally restricted to in situ measurements, so remote sensing techniques...
Distribution and habitat utilization of the gopher tortoise tick (Amblyomma tuberculatum) in Southern Mississippi
J.R. Ennen, C.P. Qualls
2011, Journal of Parasitology (97) 202-206
The distribution of the gopher tortoise tick (Amblyomma tuberculatum) has been considered intrinsically linked to the distribution of its primary host, gopher tortoises (Gopherus polyphemus). However, the presence of G. polyphemus does not always equate to the presence of A. tuberculatum. There is a paucity of data on the...
