The tidally averaged momentum balance in a partially and periodically stratified estuary
M.T. Stacey, Matthew L. Brennan, Jon R. Burau, Stephen G. Monismith
2010, Journal of Physical Oceanography (40) 2418-2434
Observations of turbulent stresses and mean velocities over an entire spring–neap cycle are used to evaluate the dynamics of tidally averaged flows in a partially stratified estuarine channel. In a depth-averaged sense, the net flow in this channel is up estuary due to interaction of tidal forcing with the geometry...
Ground-motion modeling of Hayward fault scenario earthquakes, part I: Construction of the suite of scenarios
Brad T. Aagaard, Robert W. Graves, David P. Schwartz, David A. Ponce, Russell W. Graymer
2010, Bulletin of the Seismological Society of America (100) 2927-2944
We construct kinematic earthquake rupture models for a suite of 39 Mw 6.6-7.2 scenario earthquakes involving the Hayward, Calaveras, and Rodgers Creek faults. We use these rupture models in 3D ground-motion simulations as discussed in Part II (Aagaard et al., 2010) to provide detailed estimates of the shaking for each...
Population dynamics of spotted owls in the Sierra Nevada, California
J.A. Blakesley, M.E. Seamans, M.M. Conner, A.B. Franklin, Gary C. White, R. J. Gutierrez, J.E. Hines, J.D. Nichols, T.E. Munton, D.W.H. Shaw, J.J. Keane, G.N. Steger, T. L. McDonald
2010, Wildlife Monographs 1-36
The California spotted owl (Strix occidentalis occidentalis) is the only spotted owl subspecies not listed as threatened or endangered under the United States Endangered Species Act despite petitions to list it as threatened. We conducted a meta-analysis of population data for 4 populations in the southern Cascades and Sierra Nevada,...
Persistence of canine distemper virus in the Greater Yellowstone Ecosystem's carnivore community
Emily S. Almberg, Paul C. Cross, D.W. Smith
2010, Ecological Applications (20) 2058-2074
Canine distemper virus (CDV) is an acute, highly immunizing pathogen that should require high densities and large populations of hosts for long-term persistence, yet CDV persists among terrestrial carnivores with small, patchily distributed groups. We used CDV in the Greater Yellowstone ecosystem's (GYE) wolves (Canis lupus) and coyotes (Canis latrans)...
Late Hesperian plains formation and degradation in a low sedimentation zone of the northern lowlands of Mars
J.A.P. Rodriguez, K. L. Tanaka, D.C. Berman, J.S. Kargel
2010, Icarus (210) 116-134
The plains materials that form the martian northern lowlands suggest large-scale sedimentation in this part of the planet. The general view is that these sedimentary materials were transported from zones of highland erosion via outflow channels and other fluvial systems. The study region, the northern circum-polar plains south of Gemini...
Sage-grouse habitat selection during winter in Alberta
Jennifer L. Carpenter, Cameron L. Aldridge, Mark S. Boyce
2010, Journal of Wildlife Management (74) 1806-1814
Greater sage-grouse (Centrocercus urophasianus) are dependent on sagebrush (Artemisia spp.) for food and shelter during winter, yet few studies have assessed winter habitat selection, particularly at scales applicable to conservation planning. Small changes to availability of winter habitats have caused drastic reductions in some sage-grouse populations. We modeled winter habitat...
Estimating the empirical probability of submarine landslide occurrence
Eric L. Geist, Thomas E. Parsons
David C. Mosher, Craig Shipp, Lorena Moscardelli, Jason D. Chaytor, Christopher D. P. Baxter, Homa J. Lee, Roger Urgeles, editor(s)
2010, Book chapter, Submarine mass movements and their consequences
The empirical probability for the occurrence of submarine landslides at a given location can be estimated from age dates of past landslides. In this study, tools developed to estimate earthquake probability from paleoseismic horizons are adapted to estimate submarine landslide probability. In both types of estimates, one has to account...
Holocene aggradation of the Dry Tortugas coral reef ecosystem
J. C. Brock, M. Palaseanu-Lovejoy, R.Z. Poore, A. Nayegandhi, C. W. Wright
2010, Coral Reefs (29) 857-868
Radiometric age dating of reef cores acquired at the Dry Tortugas coral reef ecosystem (DTCRE) was merged with lidar topographic mapping to examine Holocene reef development linked to spatial variation in growth and erosion under the control of sea level. Analysis of variance of lidar topography confirmed the presence of...
An evaluation of the influence of substrate on the response of juvenile freshwater mussels (fatmucket, Lampsilis siliquoidea) in acute water exposures to ammonia
J. Miao, M.C. Barnhart, Eric L. Brunson, Douglas K. Hardesty, Christopher G. Ingersoll, Ning Wang
2010, Environmental Toxicology and Chemistry (29) 2112-2116
Acute 96-h ammonia toxicity to three-month-old juvenile mussels (Lampsilis siliquoidea) was evaluated in four treatments (water-only, water-only with feeding, water and soil, and water and sand) using an exposure unit designed to maintain consistent pH and ammonia concentrations in overlying water and in pore water surrounding the substrates. Median effect...
Quantifying data worth toward reducing predictive uncertainty
A.M. Dausman, J. Doherty, C.D. Langevin, M.C. Sukop
2010, Ground Water (48) 729-740
The present study demonstrates a methodology for optimization of environmental data acquisition. Based on the premise that the worth of data increases in proportion to its ability to reduce the uncertainty of key model predictions, the methodology can be used to compare the worth of different data types, gathered at...
Rice production systems and avian influenza: Interactions between mixed-farming systems, poultry and wild birds
S.B. Muzaffar, John Y. Takekawa, D.J. Prosser, S. H. Newman, X. Xiao
2010, Waterbirds (33) 219-230
Wild waterfowl are the reservoir for avian influenza viruses (AIVs), a family of RNA viruses that may cause mild sickness in waterbirds. Emergence of H5N1, a highly pathogenic avian influenza (HPAI) strain, causing severe disease and mortality in wild birds, poultry and humans, had raised concerns about the role of...
Comment on "analysis of pumping test data for determining unconfined-aquifer parameters: Composite analysis or not?": Paper published in Hydrogeology Journal (2009) 17:1133-1147, by Hund-Der Yeh and Yen-Chen Huang
Allen F. Moench
2010, Hydrogeology Journal (18) 1975-1977
No abstract available....
Surface-wave potential for triggering tectonic (nonvolcanic) tremor
D.P. Hill
2010, Bulletin of the Seismological Society of America (100) 1859-1878
Source processes commonly posed to explain instances of remote dynamic triggering of tectonic (nonvolcanic) tremor by surface waves include frictional failure and various modes of fluid activation. The relative potential for Love- and Rayleigh-wave dynamic stresses to trigger tectonic tremor through failure on critically stressed thrust and vertical strike-slip faults...
Debris flows resulting from glacial-lake outburst floods in tibet, China
P. Cui, C. Dang, Z. Cheng, K. Scott
2010, Physical Geography (31) 508-527
During the last 70 years of general climatic amelioration, 18 glacial-lake outburst floods (GLOFs) and related debris flows have occurred from 15 moraine-dammed lakes in Tibet, China. Catastrophic loss of life and property has occurred because of the following factors: the large volumes of water discharged, the steep gradients of...
Precise estimation of repeating earthquake moment: Example from parkfield, california
J.L. Rubinstein, W.L. Ellsworth
2010, Bulletin of the Seismological Society of America (100) 1952-1961
We offer a new method for estimating the relative size of repeating earthquakes using the singular value decomposition (SVD). This method takes advantage of the highly coherent waveforms of repeating earthquakes and arrives at far more precise and accurate descriptions of earthquake size than standard catalog techniques allow. We demonstrate...
Prey use by Swainson's Hawks in the lesser prairie-chicken range of the southern high plains of Texas
A.C. Behney, C. W. Boal, Heather A. Whitlaw, D.R. Lucia
2010, Journal of Raptor Research (44) 317-322
[No abstract available]...
Direct and indirect responses of tallgrass prairie butterflies to prescribed burning
Jennifer A. Vogel, Rolf R. Koford, Diane M. Debinski
2010, Journal of Insect Conservation (14) 663-677
Fire is an important tool in the conservation and restoration of tallgrass prairie ecosystems. We investigated how both the vegetation composition and butterfly community of tallgrass prairie remnants changed in relation to the elapsed time (in months) since prescribed fire. Butterfly richness and butterfly abundance were positively correlated with the...
Estimating aboveground biomass for broadleaf woody plants and young conifers in Sierra Nevada, California, forests
T.W. McGinnis, C.D. Shook, Jon E. Keeley
2010, Western Journal of Applied Forestry (25) 203-209
Quantification of biomass is fundamental to a wide range of research and natural resource management goals. An accurate estimation of plant biomass is essential to predict potential fire behavior, calculate carbon sequestration for global climate change research, assess critical wildlife habitat, and so forth. Reliable allometric equations from simple field...
A fresh look at road salt: Aquatic toxicity and water-quality impacts on local, regional, and national scales
S.R. Corsi, D.J. Graczyk, S.W. Geis, N.L. Booth, K.D. Richards
2010, Environmental Science & Technology (44) 7376-7382
A new perspective on the severity of aquatic toxicity impact of road salt was gained by a focused research effort directed at winter runoff periods. Dramatic impacts were observed on local, regional, and national scales. Locally, samples from 7 of 13 Milwaukee, Wisconsin area streams exhibited toxicity in Ceriodaphnia dubia...
A comprehensive multilocus phylogeny for the wood-warblers and a revised classification of the Parulidae (Aves)
I.J. Lovette, J. L. Perez-Eman, J.P. Sullivan, Richard C. Banks, I. Fiorentino, S. Cordoba-Cordoba, M. Echeverry-Galvis, F.K. Barker, K.J. Burns, J. Klicka, Scott M. Lanyon, E. Bermingham
2010, Molecular Phylogenetics and Evolution (57) 753-770
The birds in the family Parulidae-commonly termed the New World warblers or wood-warblers-are a classic model radiation for studies of ecological and behavioral differentiation. Although the monophyly of a 'core' wood-warbler clade is well established, no phylogenetic hypothesis for this group has included a full sampling of wood-warbler species diversity....
The use of historical charts and photographs in ecosystem restoration: Examples from the Everglades Historical Air Photo Project
Thomas J. Smith III, Ginger Tiling-Range, John Jones, Paul Nelson, Ann Foster, Karen Balentine
David C. Cowley, Matthew J. Abicht, Robin A. Standring, editor(s)
2010, Book chapter, Landscapes through the lens: Aerial photographs and historic environment
No abstract available....
An analysis of the carbon balance of the Arctic Basin from 1997 to 2006
A. D. McGuire, D.J. Hayes, D. W. Kicklighter, M. Manizza, Q. Zhuang, M. Chen, M.J. Follows, K.R. Gurney, J.W. McClelland, J. M. Melillo, B. J. Peterson, R.G. Prinn
2010, Tellus, Series B: Chemical and Physical Meteorology (62) 455-474
This study used several model-based tools to analyse the dynamics of the Arctic Basin between 1997 and 2006 as a linked system of land-ocean-atmosphere C exchange. The analysis estimates that terrestrial areas of the Arctic Basin lost 62.9 Tg C yr-1 and that the Arctic Ocean gained 94.1 Tg C...
Using multiple chemical indicators to characterize and determine the age of groundwater from selected vents of the silver springs group, Central Florida, USA
L. Knowles Jr., B. G. Katz, D. J. Toth
2010, Hydrogeology Journal (18) 1825-1838
The Silver Springs Group, Florida (USA), forms the headwaters of the Silver River and supports a diverse ecosystem. The 30 headwater springs divide into five subgroups based on chemistry. Five selected spring vents were sampled in 2007 to better understand the contaminant sources and groundwater flow system. Elevated nitrate-N concentrations...
Algal blooms and "Marine snow": Mechanisms that enhance preservation of organic carbon in ancient fine-grained sediments
Joe H.S. Macquaker, Margaret A. Keller, Sarah J. Davies
2010, Journal of Sedimentary Research (80) 934-942
Combined petrographic and geochemical methods are used to investigate the microfabrics present in thin sections prepared from representative organic carbon-rich mudstones collected from three successions (the Kimmeridge Clay Formation, the Jet Rock Member of the Whitby Mudstone Formation, and the pebble shale and Hue Shale). This study was initiated...
Reference condition approach to restoration planning
J.M. Nestler, C.H. Theiling, S.J. Lubinski, D.L. Smith
2010, River Research and Applications (26) 1199-1219
Ecosystem restoration planning requires quantitative rigor to evaluate alternatives, define end states, report progress and perform environmental benefits analysis (EBA). Unfortunately, existing planning frameworks are, at best, semi-quantitative. In this paper, we: (1) describe a quantitative restoration planning approach based on a comprehensive, but simple mathematical framework that can be...
