Scientific results from the Mallik 2002 gas hydrate production research well program, Mackenzie Delta, northwest territories, Canada: Preface
S.R. Dallimore, T. S. Collett, A.E. Taylor, T. Uchida, M. Weber, A. Chandra, T.H. Mroz, E.M. Caddel, T. Inoue
2005, Bulletin of the Geological Survey of Canada
[No abstract available]...
An exploratory assessment of Cuban Treefrog (Osteopilus septentrionalis) tadpoles as predators of native and nonindigenous tadpoles in Florida
Kimberly G. Smith
2005, Amphibia-Reptilia (26) 571-575
[No abstract available]...
Outgassing models for Landsat-4 thematic mapper short wave infrared bands
E. Micijevic, D. L. Helder
Butler J.J., editor(s)
2005, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
Detector responses to the Internal Calibrator (IC) pulses in the Landsat-4 Thematic Mapper (TM) have been observed to follow an oscillatory behavior. This phenomenon is present only in the Short Wave Infrared (SWIR) bands and has been observed throughout the lifetime of the instrument, which was launched in July 1982...
Taxonomic status and biology of the Cuban blackhawk, Buteogallus anthracinus gundlachii (AVES: Accipitridae)
J. W. Wiley, O.H. Garrido
2005, Journal of Raptor Research (39) 351-364
We reevaluate the taxonomic status of the Cuban population of the Common Black-Hawk (Buteogallus anthracinus) based on our examination of additional specimens, nests, eggs, and voice data. Buteogallus a. gundlachii is smaller than mainland populations of anthracinus and differs from mainland birds in plumage coloration and pattern. The common (alarm)...
Large-volume, low-δ18O rhyolites of the central Snake River Plain, Idaho, USA
Scott Boroughs, John Wolff, Bill Bonnichsen, Martha Godchaux, Peter Larson
2005, Geology (33) 821-824
The Miocene Bruneau-Jarbidge and adjacent volcanic fields of the central Snake River Plain, southwest Idaho, are dominated by high-temperature rhyolitic tuffs and lavas having an aggregate volume estimated as 7000 km3. Samples from units representing at least 50% of this volume are strongly depleted in 18O, with magmatic feldspar δ18OVSMOW (Vienna standard...
Amphibian occurrence and aquatic invaders in a changing landscape: Implications for wetland mitigation in the Willamette Valley, Oregon
Christopher A. Pearl, M. J. Adams, N. Leuthold, R. Bruce Bury
2005, Wetlands (25) 76-88
Despite concern about the conservation status of amphibians in western North America, few field studies have documented occurrence patterns of amphibians relative to potential stressors. We surveyed wetland fauna in Oregon's Willamette Valley and used an information theoretic approach (AIC) to rank the associations between native amphibian breeding occurrence and...
Matthevia (Polyplacophora) invades the Ordovician: The first reported post-Cambrian occurrence
J. Pojeta Jr., John F. Taylor, G. Darrough
2005, Journal of Paleontology (79) 1021-1027
[No abstract available]...
A magnetotelluric study of the sensitivity of an area to seismoelectric signals
G. Balasis, P. A. Bedrosian, K. Eftaxias
2005, Natural Hazards and Earth System Sciences (5) 931-946
During recent years, efforts at better understanding the physical properties of precursory ultra-low frequency pre-seismic electric signals (SES) have been intensified. Experiments show that SES cannot be observed at all points of the Earth's surface but only at certain so-called sensitive sites. Moreover, a sensitive site is capable of collecting...
Direct observation of heavy metal-mineral association from the Clark Fork River Superfund Complex: Implications for metal transport and bioavailability
M.F. Hochella Jr., J.N. Moore, C.V. Putnis, A. Putnis, T. Kasama, D. D. Eberl
2005, Geochimica et Cosmochimica Acta (69) 1651-1663
Two sets of samples from riverbeds and adjacent floodplains, separated by 80 river kilometers, were collected from the Clark Fork River Superfund Complex, Montana, (the largest Superfund site in the United States), and studied primarily with transmission electron microscopy (TEM) with several supporting techniques to determine heavy metal-mineral association. Seven...
Material flows generated by pyromet copper smelting
T.G. Goonan
2005, Mining Engineering (57) 21-26
Copper production through smelting generates large volumes of material flows. As copper contained in ore becomes copper contained in concentrate to be fed into the smelting process, it leaves behind an altered landscape, sometimes mine waste, and always mill tailings. Copper concentrate, fluxing materials, fuels, oxygen, recyclables, scrap and water...
Denitrification and N2O emission from forested and cultivated alluvial clay soil
S. Ullah, G.A. Breitenbeck, S.P. Faulkner
2005, Biogeochemistry (73) 499-513
Restored forested wetlands reduce N loads in surface discharge through plant uptake and denitrification. While removal of reactive N reduces impact on receiving waters, it is unclear whether enhanced denitrification also enhances emissions of the greenhouse gas N2O, thus compromising the water-quality benefits of restoration. This study compares denitrification rates...
An assessment of Idaho's wildlife management areas for the protection of wildlife
J.W. Karl, J. M. Scott, Espen Strand
2005, Natural Areas Journal (25) 36-45
Since 1940, Idaho Department of Fish and Game has developed a network of 31 Wildlife Management Areas (WMAs) across the state. This program has been focused mostly on conservation of game species and their habitats. We assessed the contribution of Idaho's WMAs to conservation of all Idaho's wildlife and other...
Software Review: A program for testing capture-recapture data for closure
Thomas R. Stanley, Jon D. Richards
2005, Wildlife Society Bulletin (33) 782-785
Capture-recapture methods are widely used to estimate population parameters of free-ranging animals. Closed-population capture-recapture models, which assume there are no additions to or losses from the population over the period of study (i.e., the closure assumption), are preferred for population estimation over the open-population models, which do not assume closure,...
Can diet-dependent factors help explain fish-to-fish variation in thiamine-dependent early mortality syndrome?
S.B. Brown, M.T. Arts, L. R. Brown, M. Brown, K. Moore, M. Villella, J.D. Fitzsimons, D. C. Honeyfield, D. E. Tillitt, J.L. Zajicek, M. Wolgamood, J.G. Hnath
2005, Journal of Aquatic Animal Health (17) 36-47
To provide insight into the reasons why offspring of certain salmonine females exhibit early mortality syndrome (EMS) in the Great Lakes whereas others do not, we measured the egg concentrations of potential biochemical markers (stable isotopes of nitrogen and carbon, fatty acid signatures, and lipid-soluble carotenoids and vitamins) that are...
Characterization of waste rock associated with acid drainage at the Penn Mine, California, by ground-based visible to short-wave infrared reflectance spectroscopy assisted by digital mapping
S.I.C. Montero, G.H. Brimhall, Charles N. Alpers, G.A. Swayze
2005, Chemical Geology (215) 453-472
Prior to remediation at the abandoned Cu-Zn Penn Mine in the Foothills massive sulfide belt of the Sierra Nevada, CA, acid mine drainage (AMD) was created, in part, by the subaerial oxidation of sulfides exposed on several waste piles. To support remediation efforts, a mineralogical study of the waste piles...
Relationship of otolith strontium-to-calcium ratios and salinity: Experimental validation for juvenile salmonids
Christian E. Zimmerman
2005, Canadian Journal of Fisheries and Aquatic Sciences (62) 88-97
Analysis of otolith strontium (Sr) or strontium-to-calcium (Sr:Ca) ratios provides a powerful tool to reconstruct the chronology of migration among salinity environments for diadromous salmonids. Although use of this method has been validated by examination of known individuals and translocation experiments, it has never been validated under controlled experimental conditions....
Life-history habitat matching in invading non-native plant species
T.J. Stohlgren, C. Crosier, G.W. Chong, D. Guenther, P. Evangelista
2005, Plant and Soil (277) 7-18
We briefly reviewed the literature on habitat matching in invading non-native plant species. Then we hypothesized that the richness and cover of native annual and perennial plant species integrate complex local information of vegetation and soils that would help to predict invasion success by similarly adapted non-native plant species. We...
Discovery of 100-160-year-old iceberg gouges and their relation to halibut habitat in Glacier Bay, Alaska
P.R. Carlson, P.N. Hooge, G.R. Cochrane
2005, American Fisheries Society Symposium (41) 235-243
Side-scan sonar and multibeam imagery of Glacier Bay, Alaska, revealed complex iceberg gouge patterns at water depths to 135 m on the floor of Whidbey Passage and south to the bay entrance. These previously undiscovered gouges likely formed more than 100 years ago as the glacier retreated rapidly up Glacier...
The inverse problem of refraction travel times, part I: Types of Geophysical Nonuniqueness through Minimization
J. Ivanov, R. D. Miller, J. Xia, D. Steeples, C.B. Park
2005, Pure and Applied Geophysics (162) 447-459
In a set of two papers we study the inverse problem of refraction travel times. The purpose of this work is to use the study as a basis for development of more sophisticated methods for finding more reliable solutions to the inverse problem of refraction travel times, which is known...
A comparative analysis of the Global Land Cover 2000 and MODIS land cover data sets
S. Giri, Z. Zhu, B. Reed
2005, Remote Sensing of Environment (94) 123-132
Accurate and up-to-date global land cover data sets are necessary for various global change research studies including climate change, biodiversity conservation, ecosystem assessment, and environmental modeling. In recent years, substantial advancement has been achieved in generating such data products. Yet, we are far from producing geospatially consistent high-quality data at...
Long-term effects of precommercial thinning on small mammals in northern Maine
J.A. Homyack, D.J. Harrison, W.B. Krohn
2005, Forest Ecology and Management (205) 43-57
Precommercial thinning (PCT) is being practiced increasingly throughout the Acadian forest of eastern North America to meet silvicultural objectives; however, effects of this practice on wildlife, both immediately and several years post-treatment are not well understood. Forest dependent small mammals have ecological roles as prey for numerous avian and mammalian...
Invasion history, proliferation, and offshore diet of the round goby Neogobius melanostomus in western Lake Huron, USA
Jeffrey S. Schaeffer, Anjanette Bowen, Michael Thomas, John R. P. French III, Gary L. Curtis
2005, Journal of Great Lakes Research (31) 414-425
We used data from three trawl surveys during 1996–2003 to document range expansion, population trends, and use of offshore habitats by round gobies in the U.S. waters of Lake Huron. Round gobies (Neogobius melanostomus) were not detected in any survey until 1997, but by 2003 they had been recorded at...
Repeated surveys by acoustic Doppler current profiler for flow and sediment dynamics in a tidal river
R.L. Dinehart, J.R. Burau
2005, Journal of Hydrology (314) 1-21
A strategy of repeated surveys by acoustic Doppler current profiler (ADCP) was applied in a tidal river to map velocity vectors and suspended-sediment indicators. The Sacramento River at the junction with the Delta Cross Channel at Walnut Grove, California, was surveyed over several tidal cycles in the Fall of 2000...
Influence of barriers to movement on within-watershed genetic variation of coastal cutthroat trout
John E. B. Wofford, Robert E. Gresswell, Michael A. Banks
2005, Ecological Applications (15) 628-637
Because human land use activities often result in increased fragmentation of aquatic and terrestrial habitats, a better understanding of the effects of fragmentation on the genetic heterogeneity of animal populations may be useful for effective management. We used eight microsatellites to examine the genetic structure of coastal cutthroat trout (Oncorhynchus...
Red brome (Bromus rubens subsp. madritensis) in North America: Possible modes for early introductions, subsequent spread
L. F. Salo
2005, Biological Invasions (7) 165-180
Although invasions by exotic plants have increased dramatically as human travel and commerce have increased, few have been comprehensively described. Understanding the patterns of invasive species’ spread over space and time will help guide management activities and policy. Tracing the earliest appearances of an exotic plant reveals likely sites of...
