A comparison of conventional capture versus PIT reader techniques for estimating survival and capture probabilities of big brown bats (Eptesicus fuscus)
L.E. Ellison, T. J. O'Shea, D.J. Neubaum, M.A. Neubaum, R.D. Pearce, R. A. Bowen
2007, Acta Chiropterologica (9) 149-160
We compared conventional capture (primarily mist nets and harp traps) and passive integrated transponder (PIT) tagging techniques for estimating capture and survival probabilities of big brown bats (Eptesicus fuscus) roosting in buildings in Fort Collins, Colorado. A total of 987 female adult and juvenile bats were captured and marked by...
Distribution and sedimentary characteristics of tsunami deposits along the Cascadia margin of western North America
R. Peters, B. Jaffe, G. Gelfenbaum
2007, Sedimentary Geology (200) 372-386
Tsunami deposits have been found at more than 60 sites along the Cascadia margin of Western North America, and here we review and synthesize their distribution and sedimentary characteristics based on the published record. Cascadia tsunami deposits are best preserved, and most...
Penokean tectonics along a promontory-embayment margin in east-central Minnesota
V.W. Chandler, Terrence Boerboom, M.A. Jirsa
2007, Precambrian Research (157) 26-49
Recent geologic investigations in east-central Minnesota have utilized geophysical data, test drilling, and high-resolution geochronologic dating to produce a significantly improved map of a poorly exposed part of the 1880-1830 Ma Penokean orogen. These investigations have elucidated major changes in the structure of the orogen, as compared to its counterparts...
Moult migration of emperor geese Chen canagica between Alaska and Russia
Jerry W. Hupp, Joel A. Schmutz, Craig R. Ely, E.E. Syroechkovskiy Jr., Alexander V. Kondratyev, W.D. Eldridge, E. Lappo
2007, Journal of Avian Biology (38) 462-470
We studied reproductive success and post-breeding movements of 32 adult female emperor geese Chen canagica that were marked with satellite radio transmitters on their nesting area on the Yukon-Kuskokwim Delta (YKD), Alaska 2000–2004. All 16 females that failed to successfully reproduce departed the YKD and moulted remiges either on the north coast...
Detection of group 1 coronaviruses in bats in North America
S.R. Dominguez, T. J. O'Shea, L.M. Oko, K.V. Holmes
2007, Emerging Infectious Diseases (13) 1295-1300
The epidemic of severe acute respiratory syndrome (SARS) was caused by a newly emerged coronavirus (SARS-CoV). Bats of several species in southern People's Republic of China harbor SARS-like CoVs and may be reservoir hosts for them. To determine whether bats in North America also harbor coronaviruses, we used reverse transcription-PCR...
Gene expression in the liver of rainbow trout, Oncorhynchus mykiss, during the stress response
T.S. Momoda, A.R. Schwindt, G.W. Feist, L. Gerwick, C.J. Bayne, C.B. Schreck
2007, Comparative Biochemistry and Physiology, Part D: Genomics and Proteomics (2) 303-315
To better appreciate the mechanisms underlying the physiology of the stress response, an oligonucleotide microarray and real-time RT-PCR (QRT-PCR) were used to study gene expression in the livers of rainbow trout (Oncorhynchus mykiss). For increased confidence in the discovery of candidate genes responding to stress, we conducted two separate experiments...
Polycyclic aromatic hydrocarbon exposure in Steller's eiders (Polysticta stelleri) and harlequin ducks (Histronicus histronicus) in the Eastern Aleutian Islands, Alaska, USA
A.K. Miles, Paul L. Flint, K.A. Trust, M.A. Ricca, S.E. Spring, D.E. Arrieta, T. Hollmen, B.W. Wilson
2007, Environmental Toxicology and Chemistry (26) 2694-2703
Seaducks may be affected by harmful levels of polycyclic aromatic hydrocarbons (PAHs) at seaports near the Arctic. As an indicator of exposure to PAHs, we measured hepatic enzyme 7-ethoxyresorufin-O-deethylase activity (EROD) to determine cytochrome P4501A induction in Steller's eiders (Polysticta stelleri) and Harlequin ducks (Histronicus histronicus) from Unalaska, Popof, and...
Seismic hazard and risk assessment in the intraplate environment: The New Madrid seismic zone of the central United States
Z. Wang
2007, Special Paper of the Geological Society of America 363-374
Although the causes of large intraplate earthquakes are still not fully understood, they pose certain hazard and risk to societies. Estimating hazard and risk in these regions is difficult because of lack of earthquake records. The New Madrid seismic zone is one such region where large and rare intraplate earthquakes...
Larval feeding behavior and ant association in frosted elfin, Callophrys irus (Lycaenidae)
G. Albanese, M.W. Nelson, P.D. Vickery, P.R. Sievert
2007, Journal of the Lepidopterists' Society (61) 61-66
Callophrys irus is a rare and declining lycaenid found in the eastern U.S., inhabiting xeric and open habitats maintained by disturbance. Populations are localized and monophagous. We document a previously undescribed larval feeding behavior in both field and lab reared larvae in which late instar larvae girdled the main stem...
White sturgeon (Acipenser transmontanus) passage at the Dalles Dam, Columbia River, USA
M.J. Parsley, C.D. Wright, B. K. Van Der Leeuw, E.E. Kofoot, C.A. Peery, M.L. Moser
2007, Journal of Applied Ichthyology (23) 627-635
White sturgeon (Acipenser transmontanus) ???95 cm TL were monitored using acoustic and radio telemetry at a large hydroelectric dam (the Dalles Dam) on the Columbia River, during March 2004 through November 2005 to determine timing and routes of passage and to characterize general movements. Transmitters were surgically implanted into 148...
Thermal evolution and exhumation of deep-level batholithic exposures, southernmost Sierra Nevada, California
J. Saleeby, K.A. Farley, R. W. Kistler, R.J. Fleck
2007, Conference Paper, Special Paper of the Geological Society of America
The Tehachapi complex lies at the southern end of the Sierra Nevada batholith adjacent to the Neogene-Quaternary Garlock fault. The complex is composed principally of high-pressure (8-10 kbar) Cretaceous batholithic rocks, and it represents the deepest exposed levels of a continuous oblique crustal section through the southern Sierra Nevada batholith....
Welcome to the National Wetlands Research Center Library: Successful Research Begins @ Your Library
Linda Broussard
2007, Fact Sheet 2007-3033
The National Wetlands Research Center (NWRC) library is part of the U.S. Geological Survey (USGS) and is the only USGS library dedicated to wetland science. The mission of the NWRC library is to support the research and information needs of scientists, managers, and support personnel by providing a specialized, scientific...
Estimating the amount of eroded section in a partially exhumed basin from geophysical well logs: An example from the North Slope
W. Matthew Burns, Daniel O. Hayba, Elisabeth L. Rowan, David W. Houseknecht
2007, Professional Paper 1732-D
The reconstruction of burial and thermal histories of partially exhumed basins requires an estimation of the amount of erosion that has occurred since the time of maximum burial. We have developed a method for estimating eroded thickness by using porosity-depth trends derived from borehole sonic logs of wells in the...
WSR-88D observations of volcanic ash
J. Wood, C. Scott, D. Schneider
2007, Conference Paper, 87th AMS Annual Meeting
Conclusions that may impact operations are summarized below: ??? Current VCPs may not be optimal for the scharacterization of volcanic events. Therefore, the development of a new VCP that combines the enhanced low level elevation density and increased temporal resolution of VCP 12 with the enhanced sensitivity of VCP 31....
Propagation of the Hawaiian-Emperor volcano chain by Pacific plate cooling stress
W.D. Stuart, G.R. Foulger, M. Barall
2007, Special Paper of the Geological Society of America (430) 497-506
The lithosphere crack model, the main alternative to the mantle plume model for age-progressive magma emplacement along the Hawaiian-Emperor volcano chain, requires the maximum horizontal tensile stress to be normal to the volcano chain. However, published stress fields calculated from Pacific lithosphere tractions and body forces...
Crustal structure of the Alaska Range orogen and Denali fault along the Richardson Highway
M. A. Fisher, L. Pellerin, W. J. Nokleberg, N. A. Ratchkovski, J.M.G. Glen
2007, Special Paper of the Geological Society of America 43-53
A suite of geophysical data obtained along the Richardson Highway crosses the eastern Alaska Range and Denali fault and reveals the crustal structure of the orogen. Strong seismic reflections from within the orogen north of the Denali fault dip as steeply as 25° north and extend...
Early Tertiary transtension-related deformation and magmatism along the Tintina fault system, Alaska
A.B. Till, S. M. Roeske, D. C. Bradley, R. Friedman, P.W. Layer
2007, Special Paper of the Geological Society of America (434) 233-264
Transtensional deformation was concentrated in a zone adjacent to the Tintina strike-slip fault system in Alaska during the early Tertiary. The deformation occurred along the Victoria Creek fault, the trace of the Tintina system that connects it with the Kaltag fault; together the Tintina and Kaltag fault systems girdle Alaska...
The restricted gemuk group: A triassic to lower cretaceous succession in southwestern Alaska
Marti L. Miller, D. C. Bradley, T. K. Bundtzen, R. B. Blodgett, E.A. Pessagno Jr., R. D. Tucker, A. G. Harris
2007, Special Paper of the Geological Society of America 273-305
New data from an Upper Triassic to Lower Cretaceous deep marine succession-the herein reinstated and restricted Gemuk Group-provide a vital piece of the puzzle for unraveling southwestern Alaska's tectonic history. First defined by Cady et al. in 1955, the Gemuk Group soon became a regional catchall unit that ended up...
Scale independence of décollement thrusting
John H. McBride, Andre J. M. Pugin, Robert D. Hatcher Jr.
2007, Conference Paper
Orogen-scale décollements (detachment surfaces) are an enduring subject of investigation by geoscientists. Uncertainties remain as to how crustal convergence processes maintain the stresses necessary for development of low-angle fault surfaces above which huge slabs of rock are transported horizontally for tens to hundreds of kilometers. Seismic reflection profiles from the...
Amphibian, reptilian, and avian remains from the Fox Hills Formation (Maastrichtian): Shoreline and estuarine deposits of the Pierre Sea in south-central North Dakota
J.W. Hoganson, J.M. Erickson, F.D. Holland Jr.
2007, Special Paper of the Geological Society of America 239-256
Although vertebrate fossils, except for fish, are not common in the Maastrichtian Fox Hills Formation, amphibian, reptilian, and avian remains have been recovered at several localities in south-central North Dakota from shoreline facies of the retreating Pierre-Fox Hills seaway. This mixed fauna of aquatic, terrestrial, and marine taxa provides insight...
Space use by Black-necked Stilts Himantopus mexicanus in the San Francisco Bay estuary
C. Hickey, N. Warnock, John Y. Takekawa, N.D. Athearn
2007, Ardea (95) 275-288
We examined space use by Black-necked Stilts Himantopus mexicanus in the San Francisco Bay estuary, USA, to better understand how shorebirds use their Pacific Flyway landscape. These efforts are particularly important in the San Francisco Bay estuary where ongoing large-scale restoration projects are rapidly changing the mosaic of wetland habitats....
Translocation of wild Laysan Teal Anas laysanensis from Laysan Island to Midway Atoll: Project update
M.H. Reynolds, J.H. Breeden Jr., J.L. Klavitter
2007, Wildfowl (57) 120-124
The Laysan Teal Anas laysanensis is endemic to the Hawaiian Islands, where it has been restricted to Laysan Island over the last 150 years. Individuals of this endangered species have recently been translocated to the two largest islands that comprise Midway Atoll National Wildlife Refuge, to reduce the risk of...
Validation of streamflow measurements made with acoustic doppler current profilers
K. Oberg, D. S. Mueller
2007, Journal of Hydraulic Engineering (133) 1421-1432
The U.S. Geological Survey and other international agencies have collaborated to conduct laboratory and field validations of acoustic Doppler current profiler (ADCP) measurements of streamflow. Laboratory validations made in a large towing basin show that the mean differences between tow cart velocity and ADCP bottom-track and water-track velocities were -0.51...
Laysan Teal Anas laysanensis nesting phenology and site characteristics on Laysan Island
M.H. Reynolds, L.H. Crampton, M.S. Vekasy
2007, Wildfowl (57) 54-67
Factors influencing breeding initiation of the endangered Laysan Teal Anas laysanensis were studied on Laysan Island in the Hawaiian Islands National Wildlife Refuge between 1998 and 2006. Sixty-two radio-tagged adult females were tracked for 30-180 days to locate and describe their nest sites. In addition, the Laysan Teal were surveyed...
Steeply dipping heaving bedrock, Colorado: Part 1 - Heave features and physical geological framework
D.C. Noe, J.D. Higgins, H. W. Olsen
2007, Environmental & Engineering Geoscience (13) 289-308
Differentially heaving bedrock has caused severe damage near the Denver metropolitan area. This paper describes heave-feature morphologies, the underlying bedrock framework, and their inter-relationship. The heave features are linear to curvilinear and may attain heights of 0.7 m (2.4 ft), widths of 58 m (190 ft), and lengths of 1,067...
