Responses of pond-breeding amphibians to wildfire: Short-term patterns in occupancy and colonization
B. R. Hossack, P.S. Corn
2007, Ecological Applications (17) 1403-1410
Wildland fires are expected to become more frequent and severe in many ecosystems, potentially posing a threat to many sensitive species. We evaluated the effects of a large, stand-replacement wildfire on three species of pond-breeding amphibians by estimating changes in occupancy of breeding sites during the three years before and...
Recent results on the spatiotemporal modelling and comparative analysis of Black Death and bubonic plague epidemics
G. Christakos, Ricardo A. Olea, H.-L. Yu
2007, Public Health (121) 700-720
Background: This work demonstrates the importance of spatiotemporal stochastic modelling in constructing maps of major epidemics from fragmentary information, assessing population impacts, searching for possible etiologies, and performing comparative analysis of epidemics. Methods: Based on the theory previously published by the authors and incorporating new knowledge bases, informative maps of...
Amphibians and disease: Implications for conservation in the Greater Yellowstone Ecosystem
Paul Stephen Corn
2007, Yellowstone Science (15) 11-16
The decline of amphibian populations is a world-wide phenomenon that has received increasing attention since about 1990. In 2004, the World Conservation Union’s global amphibian assessment concluded that 48% of the world’s 5,743 described amphibian species were in decline, with 32% considered threatened (Stuart et al. 2004). Amphibian declines are...
Assessment of gaseous CO2 and AQUI-S as anesthetics when surgically implanting radio transmitters into cutthroat trout
T.B. Sanderson, W.A. Hubert
2007, North American Journal of Fisheries Management (27) 1053-1057
Tricaine methanesulfonate (MS-222) and CO2 are anesthetics that can be legally used in fisheries work in the United States, but they are limited in their field applications. A mandatory 21-d withdrawal period is required for fish exposed to MS-222. Carbon dioxide is not approved by the U.S. Food and Drug...
A project for monitoring trends in burn severity
Jeffery C. Eidenshink, Brian Schwind, Ken Brewer, Zhu-Liang Zhu, Brad Quayle, Stephen M. Howard
2007, Fire Ecology (3) 3-21
Jeff Eidenshink, Brian Schwind, Ken Brewer, Zhi-Liang Zhu, Brad Quayle, and Elected officials and leaders of environmental agencies need information about the effects of large wildfires in order to set policy and make management decisions. Recently, the Wildland Fire Leadership Council (WFLC), which implements and coordinates the National Fire Plan...
Chesapeake Inundation Prediction System (CIPS): A regional prototype for a national problem
B. Stamey, W. Smith, K. Carey, D. Garbin, F. Klein, Hongfang Wang, J. Shen, W. Gong, J. Cho, D. Forrest, C. Friedrichs, W. Boicourt, M. Li, M. Koterba, D. King, J. Titlow, E. Smith, A. Siebers, J. Billet, J. Lee, Douglas R. Manning, G. Szatkowski, D. Wilson, P. Ahnert, J. Ostrowski
2007, Conference Paper, Oceans Conference Record (IEEE)
Recent Hurricanes Katrina and Isabel, among others, not only demonstrated their immense destructive power, but also revealed the obvious, crucial need for improved storm surge forecasting and information delivery to save lives and property in future storms. Current operational methods and the storm surge and inundation products do not adequately...
Aeromagnetic mapping of the structure of Pine Canyon caldera and Chisos Mountains intrusion, Big Bend National Park, Texas
B. J. Drenth, C. A. Finn
2007, Geological Society of America Bulletin (119) 1521-1534
Analysis of aeromagnetic and gravity data reveals new details of the structure, igneous geology, and temporal evolution of the prominent, enigmatic ca.32 Ma Pine Canyon caldera and the Chisos Mountains (Big Bend National Park, Texas). The main caldera-filling Pine Canyon Rhyolite, the oldest member of the South Rim Formation, is...
Canadian and U.S. Cooperation for the development of standards and specifications for emerging mapping technologies
A. Habib, A. Jarvis, M. M. Al-Durgham, J. Lay, P. Quackenbush, G. Stensaas, D. Moe
2007, Conference Paper, 28th Canadian Symposium on Remote Sensing and ASPRS Fall Specialty Conference 2007
The mapping community is witnessing significant advances in available sensors, such as medium format digital cameras (MFDC) and Light Detection and Ranging (LiDAR) systems. In this regard, the Digital Photogrammetry Research Group (DPRG) of the Department of Geomatics Engineering at the University of Calgary has been actively involved in the...
Survival of wood duck ducklings and broods in Mississippi and Alabama
J. B. Davis, R. R. Cox Jr., R.M. Kaminski, B.D. Leopold
2007, Journal of Wildlife Management (71) 507-517
Although North American wood ducks (Aix sponsa) are well-studied throughout their range, researchers know little about demographic and environmental factors influencing survival of ducklings and broods, which is necessary information for population management. We studied radiomarked female and duckling wood ducks that used nest boxes and palustrine wetlands at Noxubee...
Sulfur species behavior in soil organic matter during decomposition
A.W. Schroth, B.C. Bostick, M. Graham, J.M. Kaste, M.J. Mitchell, A. J. Friedland
2007, Journal of Geophysical Research G: Biogeosciences (112)
Soil organic matter (SOM) is a primary re??servoir of terrestrial sulfur (S), but its role in the global S cycle remains poorly understood. We examine S speciation by X-ray absorption near-edge structure (XANES) spectroscopy to describe S species behavior during SOM decomposition. Sulfur species in SOM were best represented by...
Identifying biotic integrity and water chemistry relations in nonwadeable rivers of Wisconsin: Toward the development of nutrient criteria
B.M. Weigel, Dale M. Robertson
2007, Environmental Management (40) 691-708
We sampled 41 sites on 34 nonwadeable rivers that represent the types of rivers in Wisconsin, and the kinds and intensities of nutrient and other anthropogenic stressors upon each river type. Sites covered much of United States Environmental Protection Agency national nutrient ecoregions VII-Mostly Glaciated Dairy Region, and VIII-Nutrient Poor,...
Suspended sediment and sediment-associated contaminants in San Francisco Bay
D. H. Schoellhamer, T.E. Mumley, J.E. Leatherbarrow
2007, Environmental Research (105) 119-131
Water-quality managers desire information on the temporal and spatial variability of contaminant concentrations and the magnitudes of watershed and bed-sediment loads in San Francisco Bay. To help provide this information, the Regional Monitoring Program for Trace Substances in the San Francisco Estuary (RMP) takes advantage of the association of many contaminants with sediment particles...
Fate and identification of oil-brine contamination in different hydrogeologic settings
Donald O. Whittemore
2007, Applied Geochemistry (22) 2099-2114
Past disposal of oil-field brine at the surface has caused substantial contamination of water resources in Kansas. Natural saline water occurs in and discharges from Permian bedrock in parts of the state, and other anthropogenic sources of saline water exist, requiring clear identification of different sources. Time-series analysis of Cl-...
Use of avoidance response by rainbow trout to carbon dioxide for fish self-transfer between tanks
J. Clingerman, J. Bebak, P. M. Mazik, S.T. Summerfelt
2007, Aquacultural Engineering (37) 234-251
Convenient, economical, and reduced labor fish harvest and transfer systems are required to realize operating cost savings that can be achieved with the use of much larger and deeper circular culture tanks. To achieve these goals, we developed a new technology for transferring fish based on their avoidance behavior to...
Local annual survival and seasonal residency rates of Semipalmated Sandpipers (Calidris pusilla) in Puerto Rico
S.M. Rice, J.A. Collazo, M.W. Alldredge, B. A. Harrington, A.R. Lewis
2007, The Auk (124) 1397-1406
We report seasonal residency and local annual survival rates of migratory Semipalmated Sandpipers (Calidris pusilla) at the Cabo Rojo salt flats, Puerto Rico. Residency rate (daily probability of remaining on the flats) was 0.991 ± 0.001 (x̄ ± SE), yielding a mean length of stay of 110 days. This finding...
Oil and gas geochemistry and petroleum systems of the Fort Worth Basin
R.J. Hill, D.M. Jarvie, J. Zumberge, M. Henry, R. M. Pollastro
2007, American Association of Petroleum Geologists Bulletin (91) 445-473
Detailed biomarker and light hydrocarbon geochemistry confirm that the marine Mississippian Barnett Shale is the primary source rock for petroleum in the Fort Worth Basin, north-central Texas, although contributions from other sources are possible. Biomarker data indicate that the main oil-generating Barnett Shale facies is marine and was deposited under...
Scales of equilibrium and disequilibrium during cleavage formation in chlorite and biotite-grade phyllites, SE Vermont
C. K. McWilliams, R. P. Wintsch, Michael J. Kunk
2007, Journal of Metamorphic Geology (25) 895-913
Detailed electron microprobe analyses of phyllosilicates in crenulated phyllites from south-eastern Vermont show that grain-scale zoning is common, and sympathetic zoning in adjacent minerals is nearly universal. We interpret this to reflect a pressure-solution mechanism for cleavage development, where precipitation from a very small fluid reservoir fractionated that fluid. Multiple...
Seasonal movements and environmental conditions experienced by Pacific halibut in the Bering Sea, examined by pop-up satellite tags
Andrew C. Seitz, Timothy Loher, Jennifer L. Nielsen
2007, Scientific Report of the International Pacific Halibut Commission 84
Currently, Pacific halibut are managed as one population extending from California to the Bering Sea. However, we hypothesize that a spawning subpopulation of Pacific halibut exists in the Bering Sea. In this study, we examined the seasonal migration and depth-specific behavior of Pacific halibut in the Bering Sea, which serve...
Reproductive responses of male fathead minnows exposed to wastewater treatment plant effluent, effluent treated with XAD8 resin, and an environmentally relevant mixture of alkylphenol compounds
Larry B. Barber, Kathy Lee, Deborah L. Swackhamer, Heiko L. Schoenfuss
2007, Aquatic Toxicology (82) 36-46
On-site, continuous-flow experiments were conducted during August and October 2002 at a major metropolitan wastewater treatment plant (WWTP) to determine if effluent exposure induced endocrine disruption as manifested in the reproductive competence of sexually mature male fathead minnows (Pimephales promelas). The fathead minnows were exposed in parallel experiments to WWTP...
Evidence for and implications of sedimentary diapirism and mud volcanism in the southern Utopia highland-lowland boundary plain, Mars
James A. Skinner, Kenneth L. Tanaka
2007, Icarus (186) 41-59
Several types of spatially associated landforms in the southern Utopia Planitia highland–lowland boundary (HLB) plain appear to have resulted from localized geologic activity, including (1) fractured rises, (2) elliptical mounds, (3) pitted cones with emanating lobate materials, and (4) isolated and coalesced cavi (depressions). Stratigraphic analysis indicates these features are Hesperian or...
Assessment of current use and productivity of fish in the lower White Salmon River prior to the removal of Condit Dam - 2006 Progess Report
B. Allen, P. Connolly
2007, Report
No abstract available ...
Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars
B. C. Clark III, R. E. Arvidson, Ralf Gellert, R.V. Morris, D. W. Ming, L. Richter, S. W. Ruff, J.R. Michalski, W. H. Farrand, A. S. Yen, Kenneth E. Herkenhoff, R. Li, S. W. Squyres, C. Schroder, G. Klingelhofer, J.F. Bell III
2007, Journal of Geophysical Research E: Planets (112)
During its exploration of the Columbia Hills, the Mars Exploration Rover "Spirit" encountered several similar samples that are distinctly different from Martian meteorites and known Gusev crater soils, rocks, and sediments. Occurring in a variety of contexts and locations, these "Independence class" samples are rough-textured, iron-poor (equivalent FeO ??? 4...
Distribution of ground-nesting marine birds along shorelines in Glacier Bay, southeastern Alaska: An assessment related to potential disturbance by back-country users
Mayumi L. Arimitsu, John F. Piatt, Marc D. Romano
2007, Scientific Investigations Report 2007-5278
With the exception of a few large colonies, the distribution of ground-nesting marine birds in Glacier Bay National Park in southeastern Alaska is largely unknown. As visitor use increases in back-country areas of the park, there is growing concern over the potential impact of human activities on breeding birds. During...
Holocene slip rate and revised characteristic earthquake parameters for the western segment of the Castle Mountain fault, Alaska
Julie B. Willis, Peter J. Haeussler, Ronald L. Bruhn, Grant C. Willis
2007, Bulletin of the Seismological Society of America (97) 1019-1024
The western segment of the Castle Mountain fault poses a significant seismic hazard to the most populated region of south-central Alaska. We identify a previously unrecognized margin of a postglacial outwash channel that is offset right laterally 36 ± 4 m across the western segment of the Castle Mountain fault....
Distribution and habitat associations of radio-tagged adult Lost River sucker and shortnose sucker in Upper Klamath Lake, Oregon, 2005-2006
N.P. Banish, B.J. Adams, R.S. Shively
2007, Report
No abstract available ...
