Traversing a boreal forest landscape: Summer movements of Tule Greater White-fronted Geese
Craig R. Ely, K.S. Bollinger, Jerry W. Hupp, D.V. Derksen, J. Terenzi, John Y. Takekawa, D.L. Orthmeyer, T.C. Rothe, M.J. Petrula, D.R. Yparraguirre
2006, Waterbirds (29) 43-55
We monitored the movement, distribution and site affinities of radio-marked Tule Greater White-fronted Geese (Anser albifrons elgasi) during spring and summer in Alaska, 1994-1997 and 2004. Our assessment of summer movements was comprehensive, as locations were obtained during prenesting, nesting, and molt for over 90% of geese with active radios...
Foraging destinations and marine habitat use of short-tailed albatrosses: A multi-scale approach using first-passage time analysis
R.M. Suryan, F. Sato, G.R. Balogh, Hyrenbach K. David, P.R. Sievert, K. Ozaki
2006, Deep-Sea Research Part II: Topical Studies in Oceanography (53) 370-386
We used satellite telemetry, remotely sensed data (bathymetry, chlorophyll a (chl a), sea-surface temperature (SST), wind speed) and first-passage time (FPT) analysis to determine the distribution, movement patterns, and habitat associations of short-tailed albatrosses (Phoebastria albatrus) during the non-breeding season, 2002 and 2003. Satellite transmitters were deployed on birds immediately...
Abundance and distribution of selected elements in soils, stream sediments, and selected forage plants from desert tortoise habitats in the Mojave and Colorado deserts, USA
M.A. Chaffee, K.H. Berry
2006, Journal of Arid Environments (67) 35-87
A baseline and background chemical survey was conducted in southeastern California, USA, to identify potential sources of toxicants in natural and anthropogenically-altered habitats of the threatened desert tortoise (Gopherus agassizii). Soil, stream sediment, and plant samples were collected from six tortoise habitat study areas in the Mojave and Colorado deserts...
Sedimentary deposits of the 26 December 2004 tsunami on the northwest coast of Aceh, Indonesia
A. Moore, Y. Nishimura, G. Gelfenbaum, T. Kamataki, R. Triyono
2006, Earth, Planets and Space (58) 253-258
The 2004 Sumatra-Andaman tsunami flooded coastal northern Sumatra to a depth of over 20 m, deposited a discontinuous sheet of sand up to 80 cm thick, and left mud up to 5 km inland. In most places the sand sheet is normally graded, and in some it contains complex internal...
A Bayesian random effects discrete-choice model for resource selection: Population-level selection inference
D.L. Thomas, D. Johnson, B. Griffith
2006, Journal of Wildlife Management (70) 404-412
Modeling the probability of use of land units characterized by discrete and continuous measures, we present a Bayesian random-effects model to assess resource selection. This model provides simultaneous estimation of both individual- and population-level selection. Deviance information criterion (DIC), a Bayesian alternative to AIC that is sample-size specific, is used...
Great earthquakes of variable magnitude at the Cascadia subduction zone
A.R. Nelson, H.M. Kelsey, Robert C. Witter
2006, Quaternary Research (65) 354-365
Comparison of histories of great earthquakes and accompanying tsunamis at eight coastal sites suggests plate-boundary ruptures of varying length, implying great earthquakes of variable magnitude at the Cascadia subduction zone. Inference of rupture length relies on degree of overlap on radiocarbon age ranges for earthquakes and tsunamis, and relative amounts...
Perchlorate in pleistocene and holocene groundwater in North-Central New Mexico
Niel Plummer, J.K. Böhlke, M. W. Doughten
2006, Environmental Science & Technology (40) 1757-1763
Groundwater from remote parts of the Middle Rio Grande Basin in north-central New Mexico has perchlorate (ClO4-) concentrations of 0.12−1.8 μg/L. Because the water samples are mostly preanthropogenic in age (0−28 000 years) and there are no industrial sources in the study area, a natural source of the...
Determination of coalbed methane potential and gas adsorption capacity in Western Kentucky coals
S.M. Mardon, K.G. Takacs, J.C. Hower, C.F. Eble, Maria Mastalerz
2006, Conference Paper, 23rd Annual International Pittsburgh Coal Conference, PCC - Coal-Energy, Environment and Sustainable Development
The Illinois Basin has not been developed for Coalbed Methane (CBM) production. It is imperative to determine both gas content and other parameters for the Kentucky portion of the Illinois Basin if exploration is to progress and production is to occur in this area. This research is part of a...
Estimation of temporary emigration in male toads
E. Muths, R. D. Scherer, P.S. Corn, B.A. Lambert
2006, Ecology (87) 1048-1056
Male boreal toads (Bufo boreas) are thought to return to the breeding site every year but, if absent in a particular year, will be more likely to return the following year. Using Pollock's robust design we estimated temporary emigration (the probability a male toad is absent from a breeding site...
Deep magma transport at Kilauea volcano, Hawaii
T. L. Wright, F. W. Klein
2006, LITHOS (87) 50-79
The shallow part of Kilauea's magma system is conceptually well-understood. Long-period and short-period (brittle-failure) earthquake swarms outline a near-vertical magma transport path beneath Kilauea's summit to 20 km depth. A gravity high centered above the magma transport path demonstrates that Kilauea's shallow magma system, established early in the volcano's history,...
Acoustic stratigraphy of Bear Lake, Utah-Idaho: late Quaternary sedimentation patterns in a simple half-graben
Steven M. Colman
2006, Sedimentary Geology (185) 113-125
A 277-km network of high-resolution seismic-reflection profiles, supplemented with a sidescan-sonar mosaic of the lake floor, was collected in Bear Lake, Utah–Idaho, in order to explore the sedimentary framework of the lake's paleoclimate record. The acoustic stratigraphy is tied to a 120 m deep, continuously cored drill hole in the...
Industrial diamond
D.W. Olson
2006, Mining Engineering (58) 36-37
In 2005, estimated world production of natural and synthetic industrial diamond was 630 million carats. Natural industrial diamond deposits were found in more than 35 countries. Synthetic industrial diamond is produced in at least 15 countries. More than 81% of the combined natural and synthetic global output was produced in...
Nitrogen
D.A. Kramer
2006, Mining Engineering (58) 45-46
In 2005, ammonia was produced by 15 companies at 26 plants in 16 states in the United States. Of the total ammonia production capacity, 55% was centered in Louisiana, Oklahoma and Texas because of their large reserves of natural gas. US producers operated at 66% of their rated capacity. In...
Geochemical constraints on the genesis of the Scheelite dome intrusion-related gold deposit, Tombstone gold belt, Yukon, Canada
J.L. Mair, R.J. Goldfarb, C. A. Johnson, C.J.R. Hart, E.E. Marsh
2006, Economic Geology (101) 523-553
The Scheelite dome intrusion-related gold deposit, western Selwyn basin, Yukon, is hosted in hornfelsed metasedimentary strata that lie adjacent to the exposed apices of a monzogranite to quartz monzonite plutonic complex of the mid-Cretaceous Tombstone-Tungsten magmatic belt, Tintina gold province, Alaska and Yukon. A variety of mineralization styles occur throughout...
Glacial Lake Musselshell: Late Wisconsin slackwater on the Laurentide ice margin in central Montana, USA
N.K. Davis, W. W. Locke III, K. L. Pierce, R.C. Finkel
2006, Geomorphology (75) 330-345
Cosmogenic surface exposure ages of glacial boulders deposited in ice-marginal Lake Musselshell suggest that the lake existed between 20 and 11.5 ka during the Late Wisconsin glacial stage (MIS 2), rather than during the Late Illinoian stage (MIS 6) as traditionally thought. The altitude of the highest ice-rafted boulders and...
Beyond the obvious limits of ore deposits: The use of mineralogical, geochemical, and biological features for the remote detection of mineralization
D. L. Kelley, K.D. Kelley, W.B. Coker, B. Caughlin, M.E. Doherty
2006, Economic Geology (101) 729-752
Far field features of ore deposits include mineralogical, geochemical, or biological attributes that can be recognized beyond the obvious limits of the deposits. They can be primary, if formed in association with mineralization or alteration processes, or secondary, if formed from the interaction of ore deposits with the hydrosphere and...
Late Pleistocene outburst flooding from pluvial Lake Alvord into the Owyhee River, Oregon
D.T. Carter, L.L. Ely, J. E. O’Connor, C.R. Fenton
2006, Geomorphology (75) 346-367
At least one large, late Pleistocene flood traveled into the Owyhee River as a result of a rise and subsequent outburst from pluvial Lake Alvord in southeastern Oregon. Lake Alvord breached Big Sand Gap in its eastern rim after reaching an elevation of 1292 m, releasing 11.3 km3 of water...
Tidal saltmarsh fragmentation and persistence of San Pablo Song Sparrows (Melospiza melodia samuelis): Assessing benefits of wetland restoration in San Francisco Bay
John Y. Takekawa, B.N. Sacks, I. Woo, M.L. Johnson, G.D. Wylie
Greenberg R.Maldonado J.E.Droege S.McDonald M.V., editor(s)
2006, Studies in Avian Biology 238-246
The San Pablo Song Sparrow (Melospiza melodia samuelis) is one of three morphologically distinct Song Sparrow subspecies in tidal marshes of the San Francisco Bay estuary. These subspecies are rare, because as the human population has grown, diking and development have resulted in loss of 79% of the historic tidal...
Early Cretaceous terrestrial ecosystems in East Asia based on food-web and energy-flow models
M. Matsukawa, K. Saiki, M. Ito, I. Obata, D. J. Nichols, M.G. Lockley, R. Kukihara, K. Shibata
2006, Cretaceous Research (27) 285-307
In recent years, there has been global interest in the environments and ecosystems around the world. It is helpful to reconstruct past environments and ecosystems to help understand them in the present and the future. The present environments and ecosystems are an evolving continuum with those of the past and...
Carbon isotopic fractionation of CH4 and CO2 during canister desorption of coal
D. Strapoc, A. Schimmelmann, Maria Mastalerz
2006, Organic Geochemistry (37) 152-164
Canister desorption of coal gas from freshly sampled coal is commonly used for exploratory assessment of the coalbed methane (CBM) potential of a basin or prospect, as well as for the sampling of gas for isotopic determination of the gas origin. Compositional and ??13C isotopic time-series of desorbing CBM and...
Increases in desert shrub productivity under elevated carbon dioxide vary with water availability
D.C. Housman, E. Naumburg, T. E. Huxman, T.N. Charlet, R.S. Nowak, S.D. Smith
2006, Ecosystems (9) 374-385
Productivity of aridland plants is predicted to increase substantially with rising atmospheric carbon dioxide (CO2) concentrations due to enhancement in plant water-use efficiency (WUE). However, to date, there are few detailed analyses of how intact desert vegetation responds to elevated CO2. From 1998 to 2001, we examined aboveground production, photosynthesis,...
Population structure, persistence, and seasonality of autochthonous Escherichia coli in temperate, coastal forest soil from a Great Lakes watershed
M.N. Byappanahalli, R.L. Whitman, D.A. Shively, M.J. Sadowsky, S. Ishii
2006, Environmental Microbiology (8) 504-513
The common occurrence of Escherichia coli in temperate soils has previously been reported, however, there are few studies to date to characterize its source, distribution, persistent capability and genetic diversity. In this study, undisturbed, forest soils within six randomly selected 0.5 m2 exclosure plots (covered by netting of 2.3 mm2...
Fish community structure in freshwater karstic water bodies of the Sian Ka'an Reserve in the Yucatan peninsula, Mexico
L. Zambrano, E. Vazquez-Dominguez, D. Garcia-Bedoya, W.F. Loftus, J.C. Trexler
2006, Ichthyological Exploration of Freshwaters (17) 193-206
We evaluated the relationship between limnetic characteristics and fish community structure (based on species richness, abundance and individual size) in contrasting but interconnected inland aquatic habitats of freshwater karstic wetlands in the Yucatan peninsula, Mexico. In the western hemisphere, freshwater karstic wetlands are found in south-eastern Mexico, northern Belize, western...
An annotated list of aquatic insects of Fort Sill, Oklahoma, excluding diptera with notes on several new state records
R.E. Zuellig, B.C. Kondratieff, J.P. Schmidt, R.S. Durfee, D.E. Ruiter, I.E. Prather
2006, Journal of the Kansas Entomological Society (79) 34-54
Qualitative collections of aquatic insects were made at Fort Sill, Lawton, Oklahoma, between 2002 and 2004. Ephemeroptera, Plecoptera, Trichoptera, Odonata, Coleoptera, aquatic Heteroptera, Neuroptera, and Megaloptera were targeted. Additional records are included from a survey that took place in 1999. More than 11,000 specimens from more than 290 collections were...
Atmospheric deposition of current-use and historic-use pesticides in snow at National Parks in the Western United States
K.J. Hageman, S.L. Simonich, K. Campbell, G.R. Wilson, D.H. Landers
2006, Environmental Science & Technology (40) 3174-3180
The United States (U.S.) National Park Service has initiated research on the atmospheric deposition and fate of semi-volatile organic compounds in its alpine, sub-Arctic, and Arctic ecosystems in the Western U.S. Results for the analysis of pesticides in seasonal snowpack samples collected in spring 2003 from seven national parks are...
