Territoriality of feral pigs in a highly persecuted population on Fort Benning, Georgia
B.D. Sparklin, M.S. Mitchell, L.B. Hanson, D.B. Jolley, S.S. Ditchkoff
2009, Journal of Wildlife Management (73) 497-502
We examined home range behavior of female feral pigs (Sus scrofa) in a heavily hunted population on Fort Benning Military Reservation in west-central Georgia, USA. We used Global Positioning System location data from 24 individuals representing 18 sounders (i.e., F social groups) combined with markrecapture and camera-trap data to evaluate...
Influence of seasonal, diel, lunar, and other environmental factors on upstream fish passage in the igarapava fish ladder, Brazil
P.M. Bizzotto, Alexandre L. Godinho, V. Vono, B. Kynard, Hugo P. Godinho
2009, Ecology of Freshwater Fish (18) 461-472
Upstream fish passage was evaluated during 12 months in the vertical-slot Igarapava Fish Ladder constructed around Igarapava Dam, in the heavily dammed Grande River, Southeast Brazil. A video monitoring system was used to observe 61,621 fish that passed the ladder, of which 93.5% were identified to 15 taxa. Among the...
Probabilistic tsunami hazard assessment at Seaside, Oregon, for near-and far-field seismic sources
F.I. Gonzalez, E.L. Geist, B. Jaffe, U. Kanoglu, H. Mofjeld, C.E. Synolakis, V.V. Titov, D. Areas, D. Bellomo, D. Carlton, T. Horning, J. Johnson, J. Newman, T. Parsons, R. Peters, C. Peterson, G. Priest, A. Venturato, J. Weber, F. Wong, A. Yalciner
2009, Journal of Geophysical Research C: Oceans (114)
The first probabilistic tsunami flooding maps have been developed. The methodology, called probabilistic tsunami hazard assessment (PTHA), integrates tsunami inundation modeling with methods of probabilistic seismic hazard assessment (PSHA). Application of the methodology to Seaside, Oregon, has yielded estimates of the spatial distribution of 100- and 500-year maximum tsunami amplitudes,...
Suggested notation conventions for rotational seismology
J.R. Evans
2009, Bulletin of the Seismological Society of America (99) 1073-1075
We note substantial inconsistency among authors discussing rotational motions observed with inertial seismic sensors (and much more so in the broader topic of rotational phenomena). Working from physics and other precedents, we propose standard terminology and a preferred reference frame for inertial sensors (Fig. 1) that may be consistently used...
Spring and winter records of the eastern pipistrelle (Perimyotis subflavus) in southeastern New Mexico
Ernest W. Valdez, Keith Geluso, Jennifer Foote, Gosia Allison-Kosior, David M. Roemer
2009, Western North American Naturalist (69) 396-398
Eastern pipistrelles (Perimyotis subflavus) were first documented from South Dakota, western Texas, and New Mexico during recent years, suggesting that the distribution of this species is expanding westward across central parts of North America. In New Mexico, only 2 records of P. subflavus previously were known—one from summer and one from autumn....
Effects of experimental water table and temperature manipulations on ecosystem CO2 fluxes in an Alaskan rich fen
M.R. Chivers, M.R. Turetsky, J. M. Waddington, J.W. Harden, A. D. McGuire
2009, Ecosystems (12) 1329-1342
Peatlands store 30% of the world's terrestrial soil carbon (C) and those located at northern latitudes are expected to experience rapid climate warming. We monitored growing season carbon dioxide (CO2) fluxes across a factorial design of in situ water table (control, drought, and flooded plots) and soil warming (control vs....
Geochemical characterisation of seepage and drainage water quality from two sulphide mine tailings impoundments: Acid mine drainage versus neutral mine drainage
P.M. Heikkinen, M.L. Raisanen, R.H. Johnson
2009, Mine Water and the Environment (28) 30-49
Seepage water and drainage water geochemistry (pH, EC, O2, redox, alkalinity, dissolved cations and trace metals, major anions, total element concentrations) were studied at two active sulphide mine tailings impoundments in Finland (the Hitura Ni mine and Luikonlahti Cu mine/talc processing plant). The data were used to assess the factors...
Surveillance for transmissible spongiform encephalopathy in scavengers of white-tailed deer carcasses in the chronic wasting disease area of wisconsin
C.S. Jennelle, M.D. Samuel, C.A. Nolden, D.P. Keane, D.J. Barr, Chad Johnson, J.P. Vanderloo, Judd M. Aiken, A.N. Hamir, E.A. Hoover
2009, Journal of Toxicology and Environmental Health, Part A (72) 1018-1024
Chronic wasting disease (CWD), a class of neurodegenerative transmissible spongiform encephalopathies (TSE) occurring in cervids, is found in a number of states and provinces across North America. Misfolded prions, the infectious agents of CWD, are deposited in the environment via carcass remains and excreta, and pose a threat of cross-species...
Seasonal shifts in shelter and microhabitat use of drymarchon couperi (eastern indigo snake) in Georgia
N.L. Hyslop, R.J. Cooper, J.M. Meyers
2009, Copeia (2009) 458-464
Drymarchon couperi (Eastern Indigo Snake), a threatened species of the southeastern Coastal Plain of the United States, has experienced population declines because of extensive habitat loss and degradation across its range. In Georgia and northern Florida, the species is associated with longleaf pine habitats that support Gopherus polyphemus (Gopher Tortoise)...
Impacts of experimentally increased foraging effort on the family: offspring sex matters
Ann Harding, Alexander S. Kitaysky, Keith C. Hamer, Margaret E. Hall, Jorg Welcker, Sandra L. Talbot, Nina J. Karnovsky, Geir W. Gabrielsen, David Gremillet
2009, Animal Behaviour (78) 321-328
We examined how short-term impacts of experimentally increased foraging effort by one parent reverberate around the family in a monomorphic seabird (little auk, Alle alle), and whether these effects depend on offspring sex. In many species, more effort is required to rear sons successfully than daughters. However, undernourishment may have...
Characterizing the oxygen isotopic composition of phosphate sources to aquatic ecosystems
M.B. Young, K. McLaughlin, C. Kendall, W. Stringfellow, M. Rollog, K. Elsbury, E. Donald, A. Paytan
2009, Environmental Science & Technology (43) 5190-5196
The oxygen isotopic composition of dissolved inorganic phosphate (δ18Op) in many aquatic ecosystems is not in isotopic equilibrium with ambient water and, therefore, may reflect the source δ18Op. Identification of phosphate sources to water bodies is critical for designing best management practices for phosphate load reduction to control eutrophication. In...
Prevalence of West Nile virus in migratory birds during spring and fall migration
Robert J. Dusek, R. G. McLean, L.D. Kramer, S. R. Ubico, A.P. Dupuis II, G.D. Ebel, S.C. Guptill
2009, American Journal of Tropical Medicine and Hygiene (81) 1151-1158
To investigate the role of migratory birds in the dissemination of West Nile virus (WNV), we measured the prevalence of infectious WNV and specific WNV neutralizing antibodies in birds, principally Passeriformes, during spring and fall migrations in the Atlantic and Mississippi flyways from 2001-2003. Blood samples were obtained from 13,403...
Comment on "Evaluating interactions between groundwater and vadose zone using the HYDRUS-based flow package for MODFLOW" by Navin Kumar C. Twarakavi, Jirka Šimůnek and Sophia Seo
R.G. Niswonger, David E. Prudic
2009, Vadose Zone Journal (8) 818-819
Twarakavi et al (2008) compared four packages that can be used to estimate recharge for regional-scale groundwater flow simulations using MODFLOW (Harbaugh, 2005). This comment is focused on the comparisons made between two of these packages, namely, UZF1 (Niswonger et al., 2006) and a derivative of HYDRUS referred to herein...
PAHs underfoot: Contaminated dust from coal-tar sealcoated pavement is widespread in the United States
P. C. Van Metre, B.J. Mahler, J.T. Wilson
2009, Environmental Science & Technology (43) 20-25
We reported in 2005 that runoff from parking lots treated with coal-tar-based sealcoat was a major source of polycyclic aromatic hydrocarbons (PAHs) to streams in Austin, Texas. Here we present new data from nine U. S. cities that show nationwide patterns in concentrations of PAHs associated with sealcoat Dust was...
Effects of variation in streamflow and channel structure on smallmouth bass habitat in an alluvial stream
Remshardt W. Jason, W.L. Fisher
2009, River Research and Applications (25) 661-674
We evaluated the effects of streamflow-related changes in channel shape and morphology on the quality, quantity, availability and spatial distribution of young-of-year and adult smallmouth bass Micropterus dolomieu habitat in an alluvial stream, the Baron Fork of the Illinois River, Oklahoma. We developed Habitat Suitability Criteria (HSC) for young-of-year and...
Consistency between hydrological models and field observations: Linking processes at the hillslope scale to hydrological responses at the watershed scale
M.P. Clark, D.E. Rupp, R.A. Woods, Meerveld H. J. Tromp-van H. J., N.E. Peters, J.E. Freer
2009, Hydrological Processes (23) 311-319
The purpose of this paper is to identify simple connections between observations of hydrological processes at the hillslope scale and observations of the response of watersheds following rainfall, with a view to building a parsimonious model of catchment processes. The focus is on the well-studied Panola Mountain Research Watershed (PMRW),...
Microbial abundance in the deep subsurface of the Chesapeake Bay impact crater: Relationship to lithology and impact processes
Charles S. Cockell, Aaron L. Gronstal, Mary A. Voytek, Julie D. Kirshtein, Kai Finster, Ward E. Sanford, Mihaela Glamoclija, Gregroy S. Gohn, David S. Powars, J. Wright Horton Jr.
2009, GSA Special Papers (458) 941-950
Asteroid and comet impact events are known to cause profound disruption to surface ecosystems. The aseptic collection of samples throughout a 1.76-km-deep set of cores recovered from the deep subsurface of the Chesapeake Bay impact structure has allowed the study of the subsurface biosphere in a region disrupted by an...
Joint spatiotemporal variability of global sea surface temperatures and global Palmer drought severity index values
S. Apipattanavis, G.J. McCabe, B. Rajagopalan, S. Gangopadhyay
2009, Journal of Climate (22) 6251-6267
Dominant modes of individual and joint variability in global sea surface temperatures (SST) and global Palmer drought severity index (PDSI) values for the twentieth century are identified through a multivariate frequency domain singular value decomposition. This analysis indicates that a secular trend and variability related to the El Niño–Southern Oscillation...
Migratory behaviour and survival rates of wild northern Atlantic salmon Salmo salar post-smolts: Effects of environmental factors
J. G. Davidsen, A.H. Rikardsen, E. Halttunen, E.B. Thorstad, F. Okland, B. H. Letcher, J. Skarhamar, T. F. Naesje
2009, Journal of Fish Biology (75) 1700-1718
To study smolt behaviour and survival of a northern Atlantic salmon Salmo salar population during river descent, sea entry and fjord migration, 120 wild S. salar were tagged with acoustic tags and registered at four automatic listening station arrays in the mouth of the north Norwegian River Alta and throughout...
Reservoir uncertainty, Precambrian topography, and carbon sequestration in the Mt. Simon Sandstone, Illinois Basin
H.E. Leetaru, J.H. McBride
2009, Environmental Geosciences (16) 235-243
Sequestration sites are evaluated by studying the local geological structure and confirming the presence of both a reservoir facies and an impermeable seal not breached by significant faulting. The Cambrian Mt. Simon Sandstone is a blanket sandstone that underlies large parts of Midwest United States and is this region's most...
On the reported magnetic precursor of the 1993 guam earthquake
J.N. Thomas, J.J. Love, M.J.S. Johnston, K. Yumoto
2009, Geophysical Research Letters (36)
Using 1-second magnetometer data recorded 67 km from the epicenter of the 1993 Mw 7.7 Guam earthquake, Hayakawa et al. (1996) and Miyahara et al. (1999) identify anomalous precursory changes in ultra-low frequency magnetic polarization (the ratio of vertical to horizontal field components). In a check of their results, we...
Effects of sediment transport and seepage direction on hydraulic properties at the sediment-water interface of hyporheic settings
D.O. Rosenberry, J. Pitlick
2009, Journal of Hydrology (373) 377-391
Relations between seepage flux and hydraulic properties are difficult to quantify in fluvial settings because of the difficulty in measuring these variables in situ. Tests conducted in a 1.5-m diameter by 1.5-m tall sediment-filled tank indicate that hydraulic gradient increased and hydraulic conductivity (K) decreased following the onset of downward...
Evaluation of procedures for prediction of unconventional gas in the presence of geologic trends
E. D. Attanasi, T.C. Coburn
2009, Natural Resources Research (18) 153-171
This study extends the application of local spatial nonparametric prediction models to the estimation of recoverable gas volumes in continuous-type gas plays to regimes where there is a single geologic trend. A transformation is presented, originally proposed by Tomczak, that offsets the distortions caused by the trend. This article reports...
Gender difference in walleye PCB concentrations persists following remedial dredging
Charles P. Madenjian, David J. Jude, Richard R. Rediske, James P. O'Keefe, George E. Noguchi
2009, Journal of Great Lakes Research (35) 347-352
Eleven male walleyes (Sander vitreus) and 10 female walleyes from the Saginaw Bay (Lake Huron) population were caught during the spawning run at Dow Dam (Midland, Michigan) in the Tittabawassee River during April 1996, and individual whole-fish polychlorinated biphenyl (PCB) determinations were made. Total PCB concentrations averaged 7.95 and 3.17??mg/kg...
Uniform California earthquake rupture forecast, version 2 (UCERF 2)
E. H. Field, T. E. Dawson, K.R. Felzer, A.D. Frankel, V. Gupta, T.H. Jordan, T. Parsons, M.D. Petersen, R.S. Stein, R. J. Weldon, C.J. Wills
2009, Bulletin of the Seismological Society of America (99) 2053-2107
The 2007 Working Group on California Earthquake Probabilities (WGCEP, 2007) presents the Uniform California Earthquake Rupture Forecast, Version 2 (UCERF 2). This model comprises a time-independent (Poisson-process) earthquake rate model, developed jointly with the National Seismic Hazard Mapping Program and a time-dependent earthquake-probability model, based on recent earthquake rates and...
