A field assessment of long-term laboratory sediment toxicity tests with the amphipod Hyalella azteca
Christopher G. Ingersoll, Ning Wang, Jeannie M. R. Hayward, John R. Jones, Susan B. Jones, D. Scott Ireland
2005, Environmental Toxicology and Chemistry (24) 2853-2870
Response of the amphipod Hyalella azteca exposed to contaminated sediments for 10 to 42 d in laboratory toxicity tests was compared to responses observed in controlled three-month invertebrate colonization exposures conducted in a pond. Sediments evaluated included a sediment spiked with dichlorodiphenyldichloroethane (DDD) or dilutions of a field sediment collected...
A PCR-based diagnostic assay for the detection of Roseovarius crassostreae in Crassostrea virginica affected by juvenile oyster disease (JOD)
A.P. Maloy, B.J. Barber, K.J. Boettcher
2005, Diseases of Aquatic Organisms (67) 155-162
We have developed a PCR-assay for the diagnosis of juvenile oyster disease (JOD) based on the detection of Roseovarius crassostreae directly from affected oysters. Species-specific primers are used to amplify the 16S-23S rDNA internal transcribed spacer (ITS) of R. crassostreae, and confirmation of product identity is accomplished by restriction enzyme...
Sensitive ecological areas and species inventory of Actun Chapat Cave, Vaca Plateau, Belize
J.J. Wynne, W. Pleytez
2005, Journal of Cave and Karst Studies (67) 148-157
Cave ecosystems are considered one of the most poorly studied and fragile systems on Earth. Belize caves are no exception. This paper represents the first effort to synthesize information on both invertebrate and vertebrate observations from a Belize cave. Based on limited field research and a review of literature, we...
The evolution of fledging age in songbirds
D.A. Roff, V. Remes, T. E. Martin
2005, Journal of Evolutionary Biology (18) 1425-1433
In birds with altricial young an important stage in the life history is the age at fledging. In this paper we use an approach proven successful in the prediction of the optimal age at maturity in fish and reptiles to predict the optimal age of fledging in passerines. Integrating the...
Tracing water and suspended matter in Raritan and Lower New York Bays using dissolved and particulate elemental concentrations
A.J. Paulson
2005, Marine Chemistry (97) 60-77
Geochemical tracers were used to examine the mixing of water and particles in Lower New York and Raritan Bays in August 1999 during low-flow conditions. Four brackish water masses (20 ≤ S ≤ 28) originating in the Raritan and Shrewsbury Rivers, Arthur Kill, and Upper New York Bay were characterized by their dissolved...
Interior channels in Martian valleys: Constraints on fluvial erosion by measurements of the Mars Express High Resolution Stereo Camera
R. Jaumann, D. Reiss, S. Frei, G. Neukum, F. Scholten, K. Gwinner, T. Roatsch, K.-D. Matz, V. Mertens, E. Hauber, H. Hoffmann, U. Kohler, J.W. Head, H. Hiesinger, M. H. Carr
2005, Geophysical Research Letters (32) 1-4
In High Resolution Stereo Camera (HRSC) images of the Mars Express Mission a 130 km long interior channel is identified within a 400 km long valley network system located in the Lybia Montes. Ages of the valley floor and the surroundings as derived from crater counts define a period of...
Analysis of DNA-vaccinated fish reveals viral antigen in muscle, kidney, and thymus, and transient histopathologic changes
K.A. Garver, C. M. Conway, D.G. Elliott, Gael Kurath
2005, Marine Biotechnology (7) 540-553
A highly efficacious DNA vaccine against a fish rhabdovirus, infectious hematopoietic necrosis virus (IHNV), was used in a systematic study to analyze vaccine tissue distribution, persistence, expression patterns, and histopathologic effects. Vaccine plasmid pIHNw-G, containing the gene for the viral glycoprotein, was detected immediately after intramuscular injection in all tissues...
Effect of ferric oxyhydroxide grain coatings on the transport of bacteriophage PRD1 and Cryptosporidium parvum oocysts in saturated porous media
R.A. Abudalo, Y.G. Bogatsu, J. N. Ryan, R.W. Harvey, D.W. Metge, M. Elimelech
2005, Environmental Science & Technology (39) 6412-6419
To test the effect of geochemical heterogeneity on microorganism transport in saturated porous media, we measured the removal of two microorganisms, the bacteriophage PRD1 and oocysts of the protozoan parasite Cryptosporidium parvum, in flow-through columns of quartz sand coated by different amounts of a ferric oxyhydroxide. The experiments...
Volcán Popocatépetl, Mexico. Petrology, magma mixing, and immediate sources of volatiles for the 1994- Present eruption
J.B. Witter, V.C. Kress, C. G. Newhall
2005, Journal of Petrology (46) 2337-2366
Volcán Popocatépetl has been the site of voluminous degassing accompanied by minor eruptive activity from late 1994 until the time of writing (August 2002). This contribution presents petrological investigations of magma erupted in 1997 and 1998, including major-element and volatile (S, Cl, F, and H2O) data from glass inclusions and...
The implications of low-affinity AhR for TCDD insensitivity in frogs
A.A. Elskus
2005, Toxicological Sciences (88) 1-3
[No abstract available]...
Hydratools, a MATLAB® based data processing package for Sontek Hydra data
M. Martini, F. L. Lightsom, C. R. Sherwood, J. Xu, J.R. Lacy, A. Ramsey, R. Horwitz
2005, Conference Paper, Proceedings of the IEEE Working Conference on Current Measurement Technology
The U.S. Geological Survey (USGS) has developed a set of MATLAB tools to process and convert data collected by Sontek Hydra instruments to netCDF, which is a format used by the USGS to process and archive oceanographic time-series data. The USGS makes high-resolution current measurements within 1.5 meters of the...
Differential parental care by adult Mountain Plovers, Charadrius montanus
Stephen J. Dinsmore, Fritz L. Knopf
2005, Canadian Field-Naturalist (119) 532-536
We studied chick survival of the Mountain Plover (Charadrius montanus) in Montana and found that chicks tended by females had higher survival rates than chicks tended by males, and that chick survival generally increased during the nesting season. Differences in chick survival were most pronounced early in the nesting season,...
Controlling for anthropogenically induced atmospheric variation in stable carbon isotope studies
E.S. Long, R.A. Sweitzer, Duane R. Diefenbach, M. Ben-David
2005, Oecologia (146) 148-156
Increased use of stable isotope analysis to examine food-web dynamics, migration, transfer of nutrients, and behavior will likely result in expansion of stable isotope studies investigating human-induced global changes. Recent elevation of atmospheric CO2 concentration, related primarily to fossil fuel combustion, has reduced atmospheric CO2 ??13C (13C/12C), and this change...
Anatahan, Northern Mariana Islands: Reconnaissance geological observations during and after the volcanic crisis of spring 1990, and monitoring prior to the May 2003 eruption
S.K. Rowland, J. P. Lockwood, F. A. Trusdell, R. B. Moore, M. K. Sako, R. Y. Koyanagi, G. Kojima
2005, Journal of Volcanology and Geothermal Research (146) 26-59
Anatahan island is 9.5 km east–west by 3.5 km north–south and truncated by an elongate caldera 5 km east–west by 2.5 km north–south. A steep-walled pit crater ∼1 km across and ∼200 m deep occupies the eastern part of the caldera. The island is the summit region of a mostly...
Incorporating uncertainty in watershed management decision-making: A mercury TMDL case study
W. Labiosa, J. Leckie, R. Shachter, D. Freyberg, J. Rytuba
Moglen G.E., editor(s)
2005, Conference Paper, Proceedings of the 2005 Watershed Management Conference - Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges
Water quality impairment due to high mercury fish tissue concentrations and high mercury aqueous concentrations is a widespread problem in several sub-watersheds that are major sources of mercury to the San Francisco Bay. Several mercury Total Maximum Daily Load regulations are currently being developed to address this problem. Decisions about...
Volcano surveillance by ACR silver fox
M.C.L. Patterson, A. Mulligair, J. Douglas, J. Robinson, J.S. Pallister
2005, Conference Paper, Collection of Technical Papers - InfoTech at Aerospace: Advancing Contemporary Aerospace Technologies and Their Integration
Recent growth in the business of unmanned air vehicles (UAVs) both in the US and abroad has improved their overall capability, resulting in a reduction in cost, greater reliability and adoption into areas where they had previously not been considered. Uses in coastal and border patrol, forestry and agriculture have...
Fish assemblage structure in an Oklahoma Ozark stream before and after rainbow trout introduction
M. G. Walsh, D.L. Winkelman
2005, American Fisheries Society Symposium (2005) 417-430
Rainbow trout Oncorhynchus mykiss have been widely stocked throughout the United States as a popular sport fish. Our study was initiated to evaluate potential effects of rainbow trout introduction on native fishes to inform future decisions about trout stocking in northeastern Oklahoma streams. We sampled fish assemblages in pools, glides,...
Modeling and model validation of wind-driven circulation in Upper Klamath Lake, Oregon
R. T. Cheng, J. W. Gartner, T. Wood
2005, Conference Paper, World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress
The hydrodynamics in the Upper Klamath Lake (UKL) plays a significant role in the water quality conditions of the lake. In order to provide a quantitative evaluation of the impacts of hydrodynamics on water quality in UKL, a detailed hydrodynamic model was implemented using an unstructured grid 3-D hydrodynamic model...
Steam injection pilot study in a contaminated fractured limestone (Maine, USA): Modeling and analysis of borehole radar reflection data
C. Gregoire, J.W. Lane Jr., P. K. Joesten
2005, Conference Paper, Proceedings of the 3rd International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2005
Steam-enhanced remediation (SER) has been successfully used to remove DNAPL and LNAPL contaminants in porous media. Between August and November 2002, SER was tested in fractured limestone at the former Loring Air Force Base, in Maine, USA. During the SER investigation, the U.S. Geological Survey conducted a series of borehole...
Reddish Egret extends its breeding range along the North American Atlantic coast into South Carolina
L.M. Ferguson, P.G.R. Jodice, W. Post, F.I. Sanders
2005, Waterbirds (28) 525-526
We report the northernmost breeding record of the Reddish Egret (Egretta rufescens) along the North American Atlantic Coast. Nesting activity was first seen in late May 2004, and on 6 July 2004 a nest was discovered with two young chicks on Marsh Island, a barrier island located within Cape Romain...
Impacts of petroleum production on ground and surface waters: Results from the Osage-Skiatook Petroleum Environmental Research A site, Osage County Oklahoma
Y.K. Kharaka, J.J. Thordsen, E. Kakouros, W.N. Herkelrath
2005, Environmental Geosciences (12) 127-138
Kharaka has been a research hydrogeochemist with the U.S. Geological Survey since1975. His current research covers the fields of water-rock-gas interactions, CO2 sequestration, contamination from agricultural drainage and petroleum produced water, and fluid-fault interactions. Kharaka has authored more than 100 scientific papers and book chapters and has delivered about...
A simple and effective radiometric correction method to improve landscape change detection across sensors and across time
X. Chen, Lee Vierling, D. Deering
2005, Remote Sensing of Environment (98) 63-79
Satellite data offer unrivaled utility in monitoring and quantifying large scale land cover change over time. Radiometric consistency among collocated multi-temporal imagery is difficult to maintain, however, due to variations in sensor characteristics, atmospheric conditions, solar angle, and sensor view angle that can obscure surface change detection. To detect accurate...
Sexually dimorphic patterns of space use throughout ontogeny in the spotted hyena (Crocuta crocuta)
E. E. Boydston, K.M. Kapheim, R. C. Van Horn, L. Smale, K.E. Holekamp
2005, Journal of Zoology (267) 271-281
Observational and telemetry data were used in a geographic information system database to document the ontogenetic development of sexually dimorphic patterns of space use among free-living spotted hyenas Crocuta crocuta in Kenya. No measures of space use were sexually dimorphic among den-dwelling cubs, nor were sex differences apparent among hyenas...
Aquifer sensitivity to pesticide leaching: Testing a soils and hydrogeologic index method
E. Mehnert, D.A. Keefer, W.S. Dey, H.A. Wehrmann, S.D. Wilson, C. Ray
2005, Ground Water Monitoring and Remediation (25) 60-67
For years, researchers have sought index and other methods to predict aquifer sensitivity and vulnerability to nonpoint pesticide contamination. In 1995, an index method and map were developed to define aquifer sensitivity to pesticide leaching based on a combination of soil and hydrogeologic factors. The soil factor incorporated three soil...
The effects of earthquake measurement concepts and magnitude anchoring on individuals' perceptions of earthquake risk
R. Celsi, M. Wolfinbarger, D. Wald
2005, Earthquake Spectra (21) 987-1008
The purpose of this research is to explore earthquake risk perceptions in California. Specifically, we examine the risk beliefs, feelings, and experiences of lay, professional, and expert individuals to explore how risk is perceived and how risk perceptions are formed relative to earthquakes. Our results indicate that individuals tend to...
