Determinants of reproductive costs in the long-lived Black-legged Kittiwake: A multiyear experiment
Gregory H. Golet, Joel A. Schmutz, David B. Irons, James A. Estes
2004, Ecological Monographs (74) 353-372
We studied reproductive costs of Black-legged Kittiwakes (Rissa tridactyla) in Prince William Sound, Alaska (USA) by removing entire clutches from randomly selected nests over four successive years, and then contrasting survival and fecundity of adults from manipulated and unmanipulated nests in each subsequent year. To elucidate mechanisms that lead...
Herbicide concentrations in the Mississippi River basin: The importance of chloroacetanilide herbicide degradates
R.A. Rebich, R.H. Coupe, E.M. Thurman
2004, Science of the Total Environment (321) 189-199
The proportion of chloroacetanilide herbicide degradates, specifically the ethane sulfonic (ESA) and oxanilic (OA) acids, averaged 70% of the total herbicide concentration in samples from the Upper Mississippi River. In samples from the Missouri River and the Ohio River, the proportion of chloroacetanilide degradates...
Testing density-dependent groundwater models: Two-dimensional steady state unstable convection in infinite, finite and inclined porous layers
D. Weatherill, C.T. Simmons, C.I. Voss, N.I. Robinson
2004, Advances in Water Resources (27) 547-562
This study proposes the use of several problems of unstable steady state convection with variable fluid density in a porous layer of infinite horizontal extent as two-dimensional (2-D) test cases for density-dependent groundwater flow and solute transport simulators. Unlike existing density-dependent model benchmarks, these...
Atmospherically transported elements and deposition in the Southeastern United States: Local or transoceanic?
C. W. Holmes, R. Miller
2004, Conference Paper, Applied Geochemistry
Saharan dust is persistently transported and deposited in ecosystems of the western Atlantic Ocean. This dust is an aggregate of clay and quartz particles cemented with Fe oxides. Samples collected and analyzed from Mali (central Africa), the Azores, the Caribbean and the Eastern United States document the levels of minor...
Bi-parentally inherited species-specific markers identify hybridization between rainbow trout and cutthroat trout subspecies
C.O. Ostberg, R. J. Rodriguez
2004, Molecular Ecology Notes (4) 26-29
Eight polymerase chain reaction primer sets amplifying bi-parentally inherited species-specific markers were developed that differentiate between rainbow trout (Oncorhynchus mykiss) and various cutthroat trout (O. clarki) subspecies. The primers were tested within known F1 and first generation hybrid backcrosses and were shown to amplify codominantly within hybrids. Heterozygous individuals also...
Stable metal isotopes reveal copper accumulation and loss dynamics in the freshwater bivalve Corbucula
M.-N. Croteau, S. N. Luoma, B.R. Topping, C.B. Lopez
2004, Environmental Science & Technology (38) 5002-5009
Characterization of uptake and loss dynamics is critical to understanding risks associated with contaminant exposure in aquatic animals. Dynamics are especially important in addressing questions such as why coexisting species in nature accumulate different levels of a contaminant. Here we manipulated copper (Cu) stable isotopic ratios (as...
Population ecology and shell chemistry of a phytal ostracode species (Loxoconcha matagordensis) in the Chesapeake Bay watershed
C.D. Vann, T. M. Cronin, Gary S. Dwyer
2004, Marine Micropaleontology (53) 261-277
Population ecology and shell chemistry were studied in the phytal ostracode Loxoconcha matagordensis (Swain 1955) collected from Zostera marina seagrass beds in the Chesapeake Bay to provide seasonal constraints on shell secretion time for paleothermometry. Population density and age structure were defined by two main breeding cycles that occurred between...
Evidence for landscape-level, pollen-mediated gene flow from genetically modified creeping bentgrass with CP4 EPSPS as a marker
L.S. Watrud, E.H. Lee, A. Fairbrother, C. Burdick, J.R. Reichman, M. Bollman, M. Storm, G. King, Peter K. Van De Water
2004, Proceedings of the National Academy of Sciences of the United States of America (101) 14533-14538
Sampling methods and results of a gene flow study are described that will be of interest to plant scientists, evolutionary biologists, ecologists, and stakeholders assessing the environmental safety of transgenic crops. This study documents gene flow on a landscape level from creeping bentgrass (Agrostis stolonifera L.), one of the first...
Airflows and turbulent flux measurements in mountainous terrain: Part 2: Mesoscale effects
A.A. Turnipseed, D.E. Anderson, S. Burns, P.D. Blanken, Russell K. Monson
2004, Agricultural and Forest Meteorology (125) 187-205
The location of the Niwot Ridge Ameriflux site within the rocky mountains subjects it to airflows which are common in mountainous terrain. In this study, we examine the effects of some of these mesoscale features on local turbulent flux measurements; most notably, the formation of valley/mountain flows and mountain lee-side...
Timing of Precambrian melt depletion and Phanerozoic refertilization events in the lithospheric mantle of the Wyoming Craton and adjacent Central Plains Orogen
R. W. Carlson, A.J. Irving, D.J. Schulze, B. C. Hearn Jr.
2004, LITHOS (77) 453-472
Garnet peridotite xenoliths from the Sloan kimberlite (Colorado) are variably depleted in their major magmaphile (Ca, Al) element compositions with whole rock Re-depletion model ages generally consistent with this depletion occurring in the mid-Proterozoic. Unlike many lithospheric peridotites, the Sloan samples are also depleted in incompatible trace elements, as shown...
Human alterations of riparian ecosystems
J. Stromberg, M. Briggs, C. Gourley, M. Scott, P. Shafroth, L. Stevens
M. B. Baker, P. F. Ffolliott, L. F. DeBano, D. G. Neary, editor(s)
2004, Book chapter, Riparian areas of the southwestern United States: Hydrology, ecology, and management
No abstract available....
Gene expression fingerprints of largemouth bass (Micropterus salmoides) exposed to pulp and paper mill effluents
N. D. Denslow, J. Kocerha, M. S. Sepulveda, Timothy Gross, S. E. Holm
2004, Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis (552) 19-34
Effluents from pulp and paper mills that historically have used elemental chlorine in the bleaching process have been implicated in inhibiting reproduction in fish. Compounds with estrogenic and androgenic binding affinities have been found in these effluents, suggesting that the impairment of reproduction is through an endocrine-related mode of action....
Using lidar and effective LAI data to evaluate IKONOS and Landsat 7 ETM+ vegetation cover estimates in a ponderosa pine forest
X. Chen, Lee Vierling, E. Rowell, Tom DeFelice
2004, Remote Sensing of Environment (91) 14-26
Structural and functional analyses of ecosystems benefit when high accuracy vegetation coverages can be derived over large areas. In this study, we utilize IKONOS, Landsat 7 ETM+, and airborne scanning light detection and ranging (lidar) to quantify coniferous forest and understory grass coverages in a ponderosa pine (Pinus ponderosa) dominated...
The origin and mechanisms of salinization of the Lower Jordan River
E. Farber, A. Vengosh, I. Gavrieli, Amarisa Marie, T.D. Bullen, B. Mayer, R. Holtzman, M. Segal, U. Shavit
2004, Geochimica et Cosmochimica Acta (68) 1989-2006
The chemical and isotopic (87Sr/86Sr, ??11B, ??34Ssulfate, ??18Owater, ??15Nnitrate) compositions of water from the Lower Jordan River and its major tributaries between the Sea of Galilee and the Dead Sea were determined in order to reveal the origin of the salinity of the Jordan River. We identified three separate hydrological...
Scientific objectives and selection of targets for the SMART-1 Infrared Spectrometer (SIR)
A.T. Basilevsky, H.U. Keller, A. Nathues, U. Mall, H. Hiesinger, M. Rosiek
2004, Planetary and Space Science (52) 1261-1285
The European SMART-1 mission to the Moon, primarily a testbed for innovative technologies, was launched in September 2003 and will reach the Moon in 2005. On board are several scientific instruments, including the point-spectrometer SMART-1 Infrared Spectrometer (SIR). Taking into account the capabilities of the SMART-1 mission and the SIR...
Inorganic N and P dynamics of Antarctic glacial meltwater streams as controlled by hyporheic exchange and benthic autotrophic communities
Diane M. McKnight, R.L. Runkel, C. M. Tate, J.H. Duff, D.L. Moorhead
2004, Journal of the North American Benthological Society (23) 171-188
The McMurdo Dry Valleys of South Victoria Land, Antarctica, contain numerous glacial meltwater streams that drain into lakes on the valley floors. Many of the streams have abundant perennial mats of filamentous cyanobacteria. The algal mats grow during streamflow in the austral summer and are in a dormant...
Climate change in southern Illinois, USA, based on the age and δ13C of organic matter in cave sediments
Samuel V. Panno, B. Brandon Curry, Hongfang Wang, Keith C. Hackley, Chao-Li Liu, Craig Lundstrom, Juanzuo Zhou
2004, Quaternary Research (61) 301-313
Matrix-supported diamicton and uniform to laminated, silty, fine-grained sediment deposited from about 42,500 to 27,600 cal yr B.P. under slackwater conditions nearly filled two caves in southwestern Illinois. At some point, most of the sediment was flushed from the caves and from about 22,700 to 4000 cal yr B.P., floods...
Historical trends in occurrence and atmospheric inputs of halogenated volatile organic compounds in untreated ground water used as a source of drinking water
S.D. Shapiro, E. Busenberg, M. J. Focazio, Niel Plummer
2004, Science of the Total Environment (321) 201-217
Analyses of samples of untreated ground water from 413 community-, non-community- (such as restaurants), and domestic-supply wells throughout the US were used to determine the frequency of detection of halogenated volatile organic compounds (VOCs) in drinking-water sources. The VOC data were compiled from archived...
Mining review
L. McCartan, D.E. Morse, P.A. Plunkert, S.F. Sibley
2004, Mining Engineering (56) 15-24
The average annual growth rate of real gross domestic product (GDP) from the third quarter of 2001 through the second quarter of 2003 in the United States was about 2.6 percent. GDP growth rates in the third and fourth quarters of 2003 were about 8 percent and 4 percent, respectively....
Community preparedness for lava flows from Mauna Loa and Hualālai volcanoes, Kona, Hawai'i
Chris E. Gregg, Bruce F. Houghton, Douglas Paton, Donald A. Swanson, David M. Johnston
2004, Bulletin of Volcanology (66) 531-540
Lava flows from Mauna Loa and Hualālai volcanoes are a major volcanic hazard that could impact the western portion of the island of Hawai'i (e.g., Kona). The most recent eruptions of these two volcanoes to affect Kona occurred in A.D. 1950 and ca. 1800, respectively. In contrast, in eastern Hawai'i,...
Hydrogeologic processes of large-scale tectonomagmatic complexes in Mongolia-southern Siberia and on Mars
G. Komatsu, J. M. Dohm, T.M. Hare
2004, Geology (32) 325-328
Large-scale tectonomagmatic complexes are common on Earth and Mars. Many of these complexes are created or at least influenced by mantle processes, including a wide array of plume types ranging from superplumes to mantle plumes. Among the most prominent complexes, the Mongolian plateau on Earth and the Tharsis bulge on...
Evaluation of coalbed gas potential of the Seelyville Coal Member, Indiana, USA
A. Drobniak, Maria Mastalerz, J. Rupp, N. Eaton
2004, International Journal of Coal Geology (57) 265-282
The Seelyville Coal Member of the Linton Formation in Indiana potentially contains 0.03 trillion m3 (1.1 TCF) of coalbed gas. The gas content determined by canister desorption technique ranges from 0.5 to 5.7 cm3/g on dry ash free basis (15.4 to 182.2 scf/ton). The controls on gas content distribution are...
Rare earth element partitioning between hydrous ferric oxides and acid mine water during iron oxidation
P. L. Verplanck, D. Kirk Nordstrom, Howard E. Taylor, B. A. Kimball
2004, Applied Geochemistry (19) 1339-1354
Ferrous iron rapidly oxidizes to Fe (III) and precipitates as hydrous Fe (III) oxides in acid mine waters. This study examines the effect of Fe precipitation on the rare earth element(REE) geochemistry of acid mine waters to determine the pH range over which REEs behave conservatively and the range...
Effects of trichloroethylene and perchloroethylene on wild rodents at Edwards Air Force Base, California, USA
Sarah E. Spring, A. Keith Miles, Michael J. Anderson
2004, Environmental Toxicology and Chemistry (23) 2162-2169
Effects of inhalation of volatilized trichloroethylene (TCE) or perchloroethylene (PCE) were assessed based on the health and population size of wild, burrowing mammals at Edwards Air Force Base (CA, USA). Organic soil-vapor concentrations were measured at three sites with aquifer contamination of TCE or PCE of 5.5 to 77 mg/L...
Moment-tensor solutions estimated using optimal filter theory: Global seismicity, 2002
S.A. Sipkin, M.D. Zirbes
2004, Physics of the Earth and Planetary Interiors (145) 203-217
Moment-tensor solutions, estimated using optimal filter theory, are listed for 306 moderate-to-large size earthquakes that occurred during 2002. ?? 2004 Published by Elsevier B.V....
