Impacts of precipitation seasonality and ecosystem types on evapotranspiration in the Yukon River Basin, Alaska
W. Yuan, S. Liu, H. Liu, J. T. Randerson, G. Yu, L.L. Tieszen
2010, Water Resources Research (46) 1-16
Evapotranspiration (ET) is the largest component of water loss from terrestrial ecosystems; however, large uncertainties exist when estimating the temporal and spatial variations of ET because of concurrent shifts in the magnitude and seasonal distribution of precipitation as well as differences in the response of ecosystem ET to environmental variabilities....
Quality of the log-geometric distribution extrapolation for smaller undiscovered oil and gas pool size
L. Chenglin, Ronald R. Charpentier
2010, Natural Resources Research (19) 11-21
The U.S. Geological Survey procedure for the estimation of the general form of the parent distribution requires that the parameters of the log-geometric distribution be calculated and analyzed for the sensitivity of these parameters to different conditions. In this study, we derive the shape factor of a log-geometric distribution from...
Yearling greater sage-grouse response to energy development in Wyoming
M.J. Holloran, R.C. Kaiser, W.A. Hubert
2010, Journal of Wildlife Management (74) 65-72
Sagebrush (Artemisia spp.)-dominated habitats in the western United States have experienced extensive, rapid changes due to development of natural-gas fields, resulting in localized declines of greater sage-grouse (Centrocercus urophasianus) populations. It is unclear whether population declines in natural-gas fields are caused by avoidance or demographic impacts, or the age classes...
Potential economic benefits of adapting agricultural production systems to future climate change
Daniel B. Fagre, Gregory Pederson, Lindsey E. Bengtson, Tony Prato, Zeyuan Qui, Jimmie R. Williams
2010, Environmental Management (45) 577-589
Potential economic impacts of future climate change on crop enterprise net returns and annual net farm income (NFI) are evaluated for small and large representative farms in Flathead Valley in Northwest Montana. Crop enterprise net returns and NFI in an historical climate period (1960–2005) and future climate period (2006–2050) are...
First Results of the Regional Earthquake Likelihood Models Experiment
D. Schorlemmer, J.D. Zechar, M.J. Werner, E. H. Field, D.D. Jackson, T.H. Jordan
2010, Pure and Applied Geophysics (167) 859-876
The ability to successfully predict the future behavior of a system is a strong indication that the system is well understood. Certainly many details of the earthquake system remain obscure, but several hypotheses related to earthquake occurrence and seismic hazard have been proffered, and predicting earthquake behavior is a worthy...
Nodeomics: Pathogen detection in vertebrate lymph nodes using meta-transcriptomics
Nicola E. Wittekindt, Abinash Padhi, Stephan C. Schuster, Ji Qi, Fangqing Zhao, Lynn P. Tomsho, Lindsay R. Kasson, Michael Packard, Paul C. Cross, Mary Poss
2010, PLoS (5) 1-10
The ongoing emergence of human infections originating from wildlife highlights the need for better knowledge of the microbial community in wildlife species where traditional diagnostic approaches are limited. Here we evaluate the microbial biota in healthy mule deer (Odocoileus hemionus) by analyses of lymph node meta-transcriptomes. cDNA libraries from five...
A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models
L.H. Spangler, L.M. Dobeck, K.S. Repasky, A.R. Nehrir, S.D. Humphries, C.J. Keith, J.A. Shaw, J.H. Rouse, A.B. Cunningham, S.M. Benson, C.M. Oldenburg, J.L. Lewicki, A.W. Wells, J.R. Diehl, B.R. Strazisar, J.E. Fessenden, T.A. Rahn, J.E. Amonette, J.L. Barr, W.L. Pickles, J.D. Jacobson, E. A. Silver, E.J. Male, H.W. Rauch, K.S. Gullickson, R. Trautz, Yousif K. Kharaka, J. Birkholzer, L. Wielopolski
2010, Environmental Earth Sciences (60) 227-239
A controlled field pilot has been developed in Bozeman, Montana, USA, to study near surface CO2 transport and detection technologies. A slotted horizontal well divided into six zones was installed in the shallow subsurface. The scale and CO2 release rates were chosen to be relevant to developing monitoring strategies for...
Food habits of stunted and non-stunted white perch (Morone americana)
N.J.C. Gosch, J.R. Stittie, K.L. Pope
2010, Journal of Freshwater Ecology (25) 31-39
We studied food habits of white perch (Morone americana) from two populations with different stable states (stunted [Branched Oak Lake, Nebraska] and non-stunted [Pawnee Lake, Nebraska]) to determine if change in food habits of white perch is likely to occur in situations where a stunted white perch population is altered...
Conserving migratory land birds in the New World: Do we know enough?
John Faaborg, Richard T. Holmes, A.D. Anders, K.L. Bildstein, K.M. Dugger, S.A. Gauthreaux Jr., P. Heglund, K.A. Hobson, A.E. Jahn, Douglas H. Johnson, S.C. Latta, D.J. Levey, P.P. Marra, C.L. Merkord, E. Nol, S.I. Rothstein, T.W. Sherry, Sillett T. Scott, F. R. Thompson III, N. Warnock
2010, Ecological Applications (20) 398-418
Migratory bird needs must be met during four phases of the year: breeding season, fall migration, wintering, and spring migration; thus, management may be needed during all four phases. The bulk of research and management has focused on the breeding season, although several issues remain unsettled, including the spatial extent...
Calibration and use of continuous heat-type automated seepage meters for submarine groundwater discharge measurements
B.M. Mwashote, W. C. Burnett, J. Chanton, I.R. Santos, N. Dimova, P.W. Swarzenski
2010, Estuarine, Coastal and Shelf Science (87) 1-10
Submarine groundwater discharge (SGD) assessments were conducted both in the laboratory and at a field site in the northeastern Gulf of Mexico, using a continuous heat-type automated seepage meter (seepmeter). The functioning of the seepmeter is based on measurements of a temperature gradient in the water between downstream and upstream...
Methane hydrate synthesis from ice: Influence of pressurization and ethanol on optimizing formation rates and hydrate yield
Po-Chun. Chen, Wuu-Liang Huang, Laura A. Stern
2010, Energy and Fuels (24) 2390-2403
Polycrystalline methane gas hydrate (MGH) was synthesized using an ice-seeding method to investigate the influence of pressurization and ethanol on the hydrate formation rate and gas yield of the resulting samples. When the reactor is pressurized with CH4 gas without external heating, methane hydrate can be formed from ice grains...
Effects of simulated moose Alces alces browsing on the morphology of rowan Sorbus aucuparia
N.R.D. Jager, J. Pastor
2010, Wildlife Biology (16) 301-307
In much of northern Sweden moose Alces alces browse rowan Sorbus aucuparia heavily and commonly revisit previously browsed plants. Repeated browsing of rowan by moose has created some concern for its long-term survival in heavily browsed areas. We therefore measured how four years of simulated moose browsing at four population...
Hydrodynamic modeling of juvenile mussel dispersal in a large river: The potential effects of bed shear stress and other parameters
J.A. Daraio, L.J. Weber, T.J. Newton
2010, Conference Paper, Journal of the North American Benthological Society
Because unionid mussels have a parasitic larval stage, they are able to disperse upstream and downstream as larvae while attached to their host fish and with flow as juveniles after excystment from the host. Understanding unionid population ecology requires knowledge of the processes that affect juvenile dispersal prior to establishment....
Effects of egg order on organic and inorganic element concentrations and egg characteristics in tree swallows, tachycineta bicolor
Christine M. Custer, Brian R. Gray, Thomas W. Custer
2010, Environmental Toxicology and Chemistry (29) 909-921
The laying order of tree swallow eggs was identified from the Housatonic River, Berkshire County, Massachusetts, USA, and eggs were chemically analyzed individually to document possible effects of laying order on organic contaminant and inorganic element concentrations. Effects of laying order on other parameters such as egg weight, size, and...
Current lineages of the epithelioma papulosum cyprini (EPC) cell line are contaminated with fathead minnow, Pimephales promelas, cells
J. Winton, W. Batts, P. DeKinkelin, M. LeBerre, M. Bremont, N. Fijan
2010, Journal of Fish Diseases (33) 701-704
Initially established from proliferative skin lesions of the common carp, Cyprinus carpio L., the epithelioma papulosum cyprini (EPC) cell line (Fijan, Sulimanovic, Bearzotti, Muzinic, Zwillenberg, Chilmonczyk, Vautherot & de Kinkelin 1983) has become one of the most widely used tools for research on fish viruses and the diagnosis of fish...
Modeling the relations between flow regime components, species traits, and spawning success of fishes in warmwater streams
S.W. Craven, J.T. Peterson, Mary C. Freeman, T.J. Kwak, E. Irwin
2010, Environmental Management (46) 181-194
Modifications to stream hydrologic regimes can have a profound influence on the dynamics of their fish populations. Using hierarchical linear models, we examined the relations between flow regime and young-of-year fish density using fish sampling and discharge data from three different warmwater streams in Illinois, Alabama, and Georgia. We used...
Response of benthic macroinvertebrate communities to highway construction in an Appalachian watershed
Lara B. Hedrick, S.A. Welsh, James T. Anderson, L.-S. Lin, Y. Chen, X. Wei
2010, Hydrobiologia (641) 115-131
Highway construction in mountainous areas can result in sedimentation of streams, negatively impacting stream habitat, water quality, and biotic communities. We assessed the impacts of construction of a segment of Corridor H, a four-lane highway, in the Lost River watershed, West Virginia, by monitoring benthic macroinvertebrate communities and water quality,...
The release of dissolved nutrients and metals from coastal sediments due to resuspension
Linda H. Kalnejais, William R. Martin, Michael H. Bothner
2010, Marine Chemistry (121) 224-235
Coastal sediments in many regions are impacted by high levels of contaminants. Due to a combination of shallow water depths, waves, and currents, these sediments are subject to regular episodes of sediment resuspension. However, the influence of such disturbances on sediment chemistry and the release of solutes is poorly understood....
Sources of suspended-sediment flux in streams of the chesapeake bay watershed: A regional application of the sparrow model
J. W. Brakebill, S.W. Ator, G. E. Schwarz
2010, Journal of the American Water Resources Association (46) 757-776
We describe the sources and transport of fluvial suspended sediment in nontidal streams of the Chesapeake Bay watershed and vicinity. We applied SPAtially Referenced Regressions on Watershed attributes, which spatially correlates estimated mean annual flux of suspended sediment in nontidal streams with sources of suspended sediment and transport factors. According...
Polychlorinated biphenyls, dioxins, furans, and organochlorine pesticides in spotted sandpiper eggs from the upper Hudson River basin, New York
Thomas W. Custer, Christine M. Custer, Brian R. Gray
2010, Ecotoxicology (19) 391-404
In 2004, spotted sandpipers (Actitis macularia) were studied on the Hudson River near Fort Edward south to New Baltimore, NY and on two river drainages that flow into the Hudson River. Concentrations of 28 organochlorine pesticides, 160 polychlorinated biphenyl (PCB) congeners, and 17 dioxin and furan (PCDD-F) congeners...
Effects of spatial habitat heterogeneity on habitat selection and annual fecundity for a migratory forest songbird
K.L. Cornell, T.M. Donovan
2010, Landscape Ecology (25) 109-122
Understanding how spatial habitat patterns influence abundance and dynamics of animal populations is a primary goal in landscape ecology. We used an information-theoretic approach to investigate the association between habitat patterns at multiple spatial scales and demographic patterns for black-throated blue warblers (Dendroica caerulescens) at 20 study sites in west-central...
Microbial arsenic metabolism: New twists on an old poison
J.F. Stolz, P. Basu, Ronald S. Oremland
2010, Microbe (5) 53-59
Phylogenetically diverse microorganisms metabolize arsenic despite its toxicity and are part of its robust iogeochemical cycle. Respiratory arsenate reductase is a reversible enzyme, functioning in some microbes as an arsenate reductase but in others as an arsenite oxidase. As(III) can serve as an electron donor for anoxygenic photolithoautotrophy and chemolithoautotrophy....
Emplacement of the youngest flood lava on Mars: A short, turbulent story
Windy L. Jaeger, Laszlo P. Keszthelyi, James A. Skinner, Moses P. Milazzo, Alfred S. McEwen, Timothy N. Titus, Mark R. Rosiek, Donna M. Galuszka, Elpitha Howington-Kraus, Randolph L. Kirk, the HiRISE TEam
2010, Icarus (205) 230-243
Recently acquired data from the High Resolution Imaging Science Experiment (HiRISE), Context (CTX) imager, and Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) onboard the Mars Reconnaissance Orbiter (MRO) spacecraft were used to investigate the emplacement of the youngest flood-lava flow on Mars. Careful mapping finds that...
Prescribed fires as ecological surrogates for wildfires: A stream and riparian perspective
R.S. Arkle, D. S. Pilliod
2010, Forest Ecology and Management (259) 893-903
Forest managers use prescribed fire to reduce wildfire risk and to provide resource benefits, yet little information is available on whether prescribed fires can function as ecological surrogates for wildfire in fire-prone landscapes. Information on impacts and benefits of this management tool on stream and riparian ecosystems is particularly lacking....
The green alga, Cladophora, promotes Escherichia coli growth and contamination of recreational waters in Lake Michigan
A.V. Heuvel, C. McDermott, R. Pillsbury, T. Sandrin, J. Kinzelman, J. Ferguson, M. Sadowsky, M. Byappanahalli, R. Whitman, G.T. Kleinheinz
2010, Journal of Environmental Quality (39) 333-344
A linkage between Cladophora mats and exceedances of recreational water quality criteria has been suggested, but not directly studied. Th is study investigates the spatial and temporal association between Escherichia coli concentrations within and near Cladophora mats at two northwestern Lake Michigan beaches in Door County, Wisconsin. Escherichia coli concentrations...
