Responses of benthic macroinvertebrates to environmental changes associated with urbanization in nine metropolitan areas
Thomas F. Cuffney, Robin A. Brightbill, Jason T. May, Ian R. Waite
2010, Ecological Applications (20) 1384-1401
Responses of benthic macroinvertebrates along gradients of urban intensity were investigated in nine metropolitan areas across the United States. Invertebrate assemblages in metropolitan areas where forests or shrublands were being converted to urban land were strongly related to urban intensity. In metropolitan areas where agriculture and grazing lands were being...
New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
Steven V. Fend, David R. Lenat
2010, Zootaxa (2554) 1-22
The first verified records of Rhynchelmis from the southeastern Nearctic represent two new species. Both belong to R. (Rhynchelmoides) (Hrabě) n. comb., which is defined here. Rhynchelmis bolinensis n. sp. resembles other R. (Rhynchelmoides) species with elongate spermathecae, but differs in details of the reproductive structures. Rhynchelmis croatanensis n. sp....
Alaska’s changing fire regime - Implications for the vulnerability of its boreal forests
Eric S. Kasischke, David L. Verbyla, T. Scott Rupp, A. David McGuire, Karen A. Murphy, Randi Jandt, Jennifer L. Barnes, E. Hoy, Paul A. Duffy, Monika Calef, Merritt R. Turetsky
2010, Canadian Journal of Forest Research (40) 1313-1324
A synthesis was carried out to examine Alaska’s boreal forest fire regime. During the 2000s, an average of 767 000 ha·year–1 burned, 50% higher than in any previous decade since the 1940s. Over the past 60 years, there was a decrease in the number of lightning-ignited fires, an increase in extreme...
Resilience of Alaska’s boreal forest to climatic change
F.S. Chapin, A. David McGuire, Roger W. Ruess, Teresa N. Hollingsworth, M.C. Mack, J.F. Johnstone, E.S. Kasischke, E.S. Euskirchen, Jack B. Jones, M.T. Jorgenson, K. Kielland, G. Kofinas, M.R. Turetsky, J. Yarie, A.H. Lloyd, D.L. Taylor
2010, Canadian Journal of Forest Research (40) 1360-1370
This paper assesses the resilience of Alaska’s boreal forest system to rapid climatic change. Recent warming is associated with reduced growth of dominant tree species, plant disease and insect outbreaks, warming and thawing of permafrost, drying of lakes, increased wildfire extent, increased postfire recruitment of deciduous trees, and reduced safety...
Occurrence of herbicides and pharmaceutical and personal care products in surface water and groundwater around Liberty Bay, Puget Sound, Washington
Jennifer A. Dougherty, Peter W. Swarzenski, Richard S. Dinicola, Martin Reinhard
2010, Journal of Environmental Quality (39) 1173-1180
Organic contaminants, such as pharmaceuticals and personal care products (PPCPs), pose a risk to water quality and the health of ecosystems. This study was designed to determine if a coastal community lacking point sources, such as waste water treatment plant effluent, could release PPCPs, herbicides, and plasticizers at detectable levels...
Pharmaceutical formulation facilities as sources of opioids and other pharmaceuticals to wastewater treatment plant effluents
Patrick J. Phillips, Steven G. Smith, Dana W. Kolpin, Brooke W. Stinson, Steven D. Zaugg, Herbert T. Buxton, Edward T. Furlong, Kathleen Esposito
2010, Environmental Science & Technology (44) 4910-4916
Facilities involved in the manufacture of pharmaceutical products are an under-investigated source of pharmaceuticals to the environment. Between 2004 and 2009, 35 to 38 effluent samples were collected from each of three wastewater treatment plants (WWTPs) in New York and analyzed for seven pharmaceuticals including opioids and muscle relaxants. Two...
Effects of climate change on saltwater intrusion at Hilton Head Island, SC. U.S.A.
Dorothy F. Payne
2010, Conference Paper, Proceedings of the 21st Salt Water Intrusion Meeting, Azores, Portugal, 2010
Sea‐level rise and changes in precipitation patterns may contribute to the occurrence and affect the rate of saltwater contamination in the Hilton Head Island, South Carolina area. To address the effects of climate change on saltwater intrusion, a threedimensional, finite‐element, variable‐density, solute‐transport model was developed to simulate different rates of...
Feedbacks between community assembly and habitat selection shape variation in local colonization
J.M. Kraus, J.R. Vonesh
2010, Journal of Animal Ecology (79) 795-802
1. Non-consumptive effects of predators are increasingly recognized as important drivers of community assembly and structure. Specifically, habitat selection responses to top predators during colonization and oviposition can lead to large differences in aquatic community structure, composition and diversity. 2. These differences among communities due to predators may develop as...
Antibiotic fate and transport in three effluent-dominated Ozark streams
Leslie B. Massey, Brian E. Haggard, Joel M. Galloway, Keith A. Loftin, Michael T. Meyer, W. Reed Green
2010, Ecological Engineering (36) 930-938
Antibiotic transport downstream from a wastewater treatment plant effluent discharge was evaluated along stream reaches on Mud Creek, Spring Creek, and Decatur Branch in northwestern Arkansas, USA. Water and streambed samples were collected during August and September 2006 and analyzed for multiple antibiotics representing five classes (beta-lactams, macrolides, quinolones, sulfonamides, and tetracyclines). Antibiotics within the classes...
Identification of a novel arsenite oxidase gene, arxA, in the haloalkaliphilic, arsenite-oxidizing bacterium alkalilimnicola ehrlichii strain MLHE-1
Kamrun Zargar, Shelley E. Hoeft, Ronald S. Oremland, Chad W. Saltikov
2010, Journal of Bacteriology (192) 3755-3762
Although arsenic is highly toxic to most organisms, certain prokaryotes are known to grow on and respire toxic metalloids of arsenic (i.e., arsenate and arsenite). Two enzymes are known to be required for this arsenic-based metabolism: (i) the arsenate respiratory reductase (ArrA) and (ii) arsenite oxidase...
Reply to Comment on “Detrital U–Pb zircon dating of lower Ordovician syn-arc–continent collision conglomerates in the Irish Caledonides” by Peter D. Clift, Andrew Carter, Amy E. Draut, Hoang Van Long, David M. Chew, Hans A. Schouten, Tectonophysics 479 (2009), 165–174 (doi:10.1016/j.tecto.2008.07.018)
Peter D. Clift, Andrew Carter, Amy E. Draut, Hoang Van Long, Hans Schouten
2010, Tectonophysics (490) 138-139
No abstract available....
Channel geomorphic responses to disturbances assessed using streamgage information
Kyle E. Juracek, Mark W. Bowen
2010, Conference Paper, Proceedings of the 2nd Joint Federal Interagency Conference on Sedimentation and Hydrologic Modeling
No abstract available....
Visible and near-infrared multispectral analysis of geochemically measured rock fragments at the Opportunity landing site in Meridiani Planum
Catherine M. Weitz, William H. Farrand, Jeffrey R. Johnson, Iris Fleischer, Christian Schroder, Aileen Yingst, Bradley L. Jolliff, Ralf Gellert, Jim Bell, Kenneth E. Herkenhoff, G. Klingelhoefer, Barbara Cohen, Wendy M. Calvin, Malcolm Rutherford, James W. Ashley
2010, Journal of Geophysical Research E: Planets (115)
We have used visible and near‐infrared Panoramic Camera (Pancam) spectral data acquired by the Opportunity rover to analyze 15 rock fragments at the Meridiani Planum landing site. These spectral results were then compared to geochemistry measurements made by the in situ instruments Mössbauer (MB) and Alpha Particle X‐ray Spectrometer (APXS)...
Properties and distribution of paired candidate stony meteorites at Meridiani Planum
Christian Schroder, Kenneth E. Herkenhoff, William H. Farrand, John E. Chappelow, Wei Wang, L.R. Nittler, James W. Ashley, Iris Fleischer, Ralf Gellert, Matthew P. Golombek, Jeffrey R. Johnson, G. Klingelhoefer, Ron Li, Richard V. Morris, Steven W. Squyres
2010, Journal of Geophysical Research E: Planets (115)
The Mars Exploration Rover Opportunity investigated four rocks, informally dubbed Barberton, Santa Catarina, Santorini, and Kasos, that are possible stony meteorites. Their chemical and mineralogical composition is similar to the howardite, eucrite, and diogenite group but with additional metal, similar to mesosiderite silicate clasts. Because of their virtually identical composition...
Appendix A: Selected case studies of ecosystem contamination by selenium
Terry F. Young, Keith Finley, William J. Adams, John M. Besser, William A. Hopkins, Dianne Jolley, Eugenia McNaughton, Theresa S. Presser, D. Patrick Shaw, J. M. Unrine
Peter M. Chapman, William J. Adams, Marjorie L. Brooks, Charles G. Delos, Samuel N. Luoma, William A. Maher, Harry M. Ohlendorf, Theresa S. Presser, D. Patrick Shaw, editor(s)
2010, Book chapter, Ecological assessment of selenium in the aquatic environment
No abstract available....
Extending and testing Graizer-Kalkan ground motion attenuation model based on atlas database of shallow crustal events
Vladimir Graizer, Erol Kalkan, Kuo-Wan Lin
2010, Conference Paper, Proceedings of the 9th U.S. National and 10th Canadian Conference on Earthquake Engineering
No abstract available....
Regional and grain size influences on the geochemistry of soil at Gusev Crater
Suniti Karunatillake, Scott M. McLennan, Kenneth E. Herkenhoff
2010, Journal of Geophysical Research E: Planets (115)
Congruous with earlier work, Martian soil along the Spirit Rover's traverse at Gusev crater can be divided into three broad groups by size: fines (<150 μm), sand, and a mix of various grain sizes. The key chemical observation is greater homogeneity in fines relative to the other two, consistent with regional‐...
Gone with the wind: Eolian erasure of the Mars Rover tracks
Paul E. Geissler, R. Sullivan, M. Golombek, J. R. Johnson, Kenneth E. Herkenhoff, N. Bridges, Amy Vaughan, J. Maki, T. Parker, J. Bell
2010, Journal of Geophysical Research E: Planets (115)
The wheel tracks left by the Mars Exploration Rovers Spirit and Opportunity are unique artificial markings on the surface of Mars. The tracks stretch several kilometers across diverse terrain in two widely separated regions of the planet. The initial appearance and characteristics of the tracks were well documented by the...
Spirit Mars Rover Mission: Overview and selected results from the northern Home Plate Winter Haven to the side of Scamander crater
R. E. Arvidson, J.F. Bell III, P. Bellutta, N.A. Cabrol, J.G. Catalano, J. Cohen, L.S. Crumpler, D. J. Des Marais, T.A. Estlin, W.H. Farrand, R. Gellert, J. A. Grant, Rebecca N Greenberger, E.A. Guinness, Kenneth E. Herkenhoff, J.A. Herman, K.D. Iagnemma, J. R. Johnson, G. Klingelhoefer, K.A. Lichtenberg, S.A. Maxwell, D. W. Ming, R.V. Morris, M.S. Rice, S. W. Ruff, A. Shaw, Kirsten L. Siebach, Paulo A. de Souza Jr., A.W. Stroupe, S. W. Squyres, R.J. Sullivan, K.P. Talley, J.A. Townsend, A. Wang, J.R. Wright, A. S. Yen
2010, Journal of Geophysical Research E: Planets (115)
This paper summarizes Spirit Rover operations in the Columbia Hills, Gusev crater, from sol 1410 (start of the third winter campaign) to sol 2169 (when extrication attempts from Troy stopped to winterize the vehicle) and provides an overview of key scientific results. The third winter campaign took advantage of parking...
Mineralogy and chemistry of cobbles at Meridiani Planum, Mars, investigated by the Mars Exploration Rover Opportunity
I. Fleischer, J. Bruckner, C. Schroder, W. Farrand, E. Treguier, R.V. Morris, G. Klingelhoefer, Kenneth E. Herkenhoff, David W. Mittlefehldt, J. Ashley, M. Golombek, J. R. Johnson, B. Jolliff, Steve W. Squyres, C. Weitz, R. Gellert, Paulo A. de Souza Jr., B. A. Cohen
2010, Journal of Geophysical Research E: Planets (155)
Numerous loose rocks with dimensions of a few centimeters to tens of centimeters and with no obvious physical relationship to outcrop rocks have been observed along the traverse of the Mars Exploration Rover Opportunity. To date, about a dozen of these rocks have been analyzed with Opportunity's contact instruments, providing...
Climate change and climate systems influence and control the atmospheric dispersion of desert dust: implications for human health
Dale W. Griffin
Richard C. Ragaini, editor(s)
2010, Conference Paper, International Seminar on Nuclear War and Planetary Emergencies 42nd session
The global dispersion of desert dust through Earth’s atmosphere is greatly influenced by temperature. Temporal analyses of ice core data have demonstrated that enhanced dust dispersion occurs during glacial events. This is due to an increase in ice cover, which results in an increase in drier terrestrial cover. A shorter...
A hybrid finite-difference and analytic element groundwater model
Henk M. Haitjema, Daniel T. Feinstein, Randall J. Hunt, Maksym Gusyev
2010, Groundwater (48) 538-548
Regional finite-difference models tend to have large cell sizes, often on the order of 1–2 km on a side. Although the regional flow patterns in deeper formations may be adequately represented by such a model, the intricate surface water and groundwater interactions in the shallower layers are not. Several stream...
Discriminating silt-and-clay from suspended-sand in rivers using side-looking acoustic profilers
Scott Wright, David J. Topping, Cory A. Williams
2010, Conference Paper, Proceedings of the Joint Federal Interagency Conference 2010: Hydrology and sedimentation for a changing future: Existing and emerging issues
The ability to accurately monitor suspended-sediment flux in rivers is needed to support many types of studies, because the sediment that typically travels in suspension affects geomorphology and aquatic habitat in a variety of ways (e.g. bank and floodplain deposition, bar morphology, light penetration and primary productivity, tidal wetland deposition...
Grain-size evolution in suspended sediment and deposits from the 2004 and 2008 controlled-flood experiments in Marble and Grand Canyons, Arizona
Amy E. Draut, David J. Topping, David M. Rubin, Scott Wright, John C. Schmidt
2010, Conference Paper, Proceedings of the Joint Federal Interagency Conference 2010: Hydrology and sedimentation for a changing future: Existing and emerging issues
Since the closure of Glen Canyon Dam in 1963, the hydrology, sediment supply, and distribution and size of modern alluvial deposits in the Colorado River through Grand Canyon have changed substantially (e.g., Howard and Dolan, 1981; Johnson and Carothers, 1987; Webb et al., 1999; Rubin et al., 2002; Topping et...
Potential mitigation approach to minimize salinity intrusion in the Lower Savannah River Estuary due to reduced controlled releases from Lake Thurmond
Paul Conrads, James M. Greenfield
2010, Conference Paper, Proceedings of the Joint Federal Interagency Conference 2010: Hydrology and sedimentation for a changing future: existing and emerging issues
The Savannah River originates at the confluence of the Seneca and Tugaloo Rivers, near Hartwell, Ga. and forms the State boundary between South Carolina and Georgia. The J. Strom Thurmond Dam and Lake, located 187 miles upstream from the coast, is responsible for most of the flow regulation that affects...
