Evaluation of CAMEL - comprehensive areal model of earthquake-induced landslides
S.B. Miles, D. K. Keefer
2009, Engineering Geology (104) 1-15
A new comprehensive areal model of earthquake-induced landslides (CAMEL) has been developed to assist in planning decisions related to disaster risk reduction. CAMEL provides an integrated framework for modeling all types of earthquake-induced landslides using fuzzy logic systems and geographic information systems. CAMEL is designed to facilitate quantitative and qualitative...
Macroinvertebrates as indicators of fish absence in naturally fishless lakes
Emily Gaenzle Schilling, C.S. Loftin, Alexander D. Huryn
2009, Freshwater Biology (54) 181-202
1. Little is known about native communities in naturally fishless lakes in eastern North America, a region where fish stocking has led to a decline in these habitats. 2. Our study objectives were to: (i) characterise and compare macroinvertebrate communities in fishless lakes found in two biophysical regions of Maine...
The speciation of aqueous zinc(II) bromide solutions to 500 °C and 900 MPa determined using Raman spectroscopy
Kenji Mibe, I-Ming Chou, Alan J. Anderson, Robert A. Mayanovic, William A. Bassett
2009, Chemical Geology (259) 48-53
A Raman spectral study was carried out on 3 solutions of varying concentration and bromide/zinc ratios. Spectra were collected at 11 different temperature-pressure conditions ranging from ambient to 500????C-0.9??GPa. Raman band assignments for zinc(II) bromide species reported in previous studies were used to determine the relative concentrations of ZnBr42-, ZnBr3-,...
Wastewater effluent, combined sewer overflows, and other sources of organic compounds to Lake Champlain
P. Phillips, A. Chalmers
2009, Journal of the American Water Resources Association (45) 45-57
Abstract: Some sources of organic wastewater compounds (OWCs) to streams, lakes, and estuaries, including wastewater‐treatment‐plant effluent, have been well documented, but other sources, particularly wet‐weather discharges from combined‐sewer‐overflow (CSO) and urban runoff, may also be major sources of OWCs. Samples of wastewater‐treatment‐plant (WWTP) effluent, CSO effluent, urban...
Mitochondrial DNA evolution in the Anaxyrus boreas species group
A.M. Goebel, T.A. Ranker, P.S. Corn, R.G. Olmstead
2009, Molecular Phylogenetics and Evolution (50) 209-225
The Anaxyrus boreas species group currently comprises four species in western North America including the broadly distributed A. boreas, and three localized species, Anaxyrus nelsoni, Anaxyrus exsul and Anaxyrus canorus. Phylogenetic analyses of the mtDNA 12S rDNA, cytochrome oxidase I, control region, and restriction sites data, identified three major haplotype...
Potential effects of environmental contaminants on P450 aromatase activity and DNA damage in swallows from the Rio Grande and Somerville, Texas
M.A. Sitzlar, M.A. Mora, J.G.W. Fleming, F.W. Bazer, J. W. Bickham, C. W. Matson
2009, Ecotoxicology (18) 15-21
Cliff swallows (Petrochelidon pyrrhonota) and cave swallows (P. fulva) were sampled during the breeding season at several locations in the Rio Grande, Texas, to evaluate the potential effects of environmental contaminants on P450 aromatase activity in brain and gonads and DNA damage in blood cells. The tritiated water-release aromatase assay...
Effects of chemical immobilization on survival of African buffalo in the Kruger National Park
W.C. Oosthuizen, P.C. Cross, J.A. Bowers, C. Hay, M.R. Ebinger, P. Buss, M. Hofmeyr, E.Z. Cameron
2009, Journal of Wildlife Management (73) 149-153
Capturing, immobilizing, and fitting radiocollars are common practices in studies of large mammals, but success is based on the assumptions that captured animals are representative of the rest of the population and that the capture procedure has negligible effects. We estimated effects of chemical immobilization on mortality rates of African...
Soot and palynologic analysis of Manson impact-related strata (Upper Cretaceous) of Iowa and South Dakota, USA
D.J. Varricchio, R.F. Raven, W.S. Wolbach, W.C. Elsik, B.J. Witzke
2009, Cretaceous Research (30) 127-134
The Campanian Manson impact structure of Iowa represents the best-preserved, large-diameter complex crater within the continental U.S. To assess the timing and potential mode of crater infilling and the possible presence of an impact event horizon, we analyzed samples from both within and distal to the impact structure for their...
Use of morphometric measurements to differentiate between species and sex of king and clapper rails
Marie Perkins, S.L. King, S.E. Travis, J. Linscombe
2009, Waterbirds (32) 579-584
King Rails (Rallus elegans) and Clapper Rails (Rallus longirostris) are large, secretive waterbirds whose ranges overlap in brackish marshes along the Atlantic and Gulf Coasts. King and Clapper Rails are difficult to separate by physical appearance and there is currently no reliable method to distinguish between the two species. Here,...
Postimpact heat conduction and compaction-driven fluid flow in the Chesapeake Bay impact structure based on downhole vitrinite reflectance data, ICDP-USGS Eyreville deep core holes and Cape Charles test holes
M.L. Malinconico, W. E. Sanford, Horton W.J.J. Wright Jr.
2009, Special Paper of the Geological Society of America 905-930
Vitrinite reflectance data from the International Continental Scientific Drilling Program (ICDP)-U.S. Geological Survey (USGS) Eyreville deep cores in the centralcrater moat of the Chesapeake Bay impact structure and the Cape Charles test holes on the central uplift show patterns of postimpact maximum-temperature distribution that result from a combination of conductive...
Quantitative polymerase chain reaction (PCR) assays for a bacterial thiaminase I gene and the thiaminase-producing bacterium Paenibacillus thiaminolyticus.
C.A. Richter, Maureen K. Wright-Osment, J.L. Zajicek, D. C. Honeyfield, D. E. Tillitt
2009, Journal of Aquatic Animal Health (21) 229-238
The thiaminase I enzyme produced by the gram-positive bacterium Paenibacillus thiaminolyticus isolated from the viscera of Lake Michigan alewives Alosa pseudoharengus is currently the only defined source of the thiaminase activity linked to thiamine (vitamin B1) deficiency in early mortality syndrome (EMS) in the larvae of Great Lakes salmonines. Diets...
Reproduction and microhabitat selection in a sharply declining Northern Bobwhite population
B.M. Collins, C.K. Williams, Paul M. Castelli
2009, Wilson Journal of Ornithology (121) 688-695
Northern Bobwhite (Colinus virginianus) populations have been declining throughout their range, but some of the sharpest declines have been documented in the Mid-Atlantic states. We conducted a 2 year (2006-2007) breeding season (1 May-30 Sep) telemetry study in southern New Jersey to collect baseline data on Northern Bobwhite reproductive rates,...
Rock-avalanche and ocean-resurge deposits in the late Eocene Chesapeake Bay impact structure: Evidence from the ICDP-USGS Eyreville cores, Virginia, USA
Gregory Gohn, David S. Powars, H. Dypvik, Lucy E. Edwards
2009, Special Paper of the Geological Society of America 587-615
An unusually thick section of sedimentary breccias dominated by target-sediment clasts is a distinctive feature of the late Eocene Chesapeake Bay impact structure. A cored 1766-m-deep section recovered from the central part of this marine-target structure by the International Continental Scientific Drilling Program (ICDP)-U.S. Geological Survey (USGS) drilling project contains...
Late Quaternary sedimentary features of Bear Lake, Utah and Idaho
J. P. Smoot
2009, Special Paper of the Geological Society of America 49-104
Bear Lake sediments were predominantly aragonite for most of the Holocene, reflecting a hydrologically closed lake fed by groundwater and small streams. During the late Pleistocene, the Bear River flowed into Bear Lake and the lake waters spilled back into the Bear River drainage. At that time, sediment deposition was...
Feeding ecology of arctic-nesting sandpipers during spring migration through the prairie pothole region
J.L. Eldridge, Gary L. Krapu, Douglas H. Johnson
2009, Journal of Wildlife Management (73) 248-252
We evaluated food habits of 4 species of spring-migrant calidrid sandpipers in the Prairie Pothole Region (PPR) of North Dakota. Sandpipers foraged in several wetland classes and fed primarily on aquatic dipterans, mostly larvae, and the midge family Chironomidae was the primary food eaten. Larger sandpiper species foraged in deeper...
Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA
T.W. Doyle
2009, Wetlands (29) 35-43
The regularity and severity of tropical storms are major determinants controlling ecosystem structure and succession for coastal ecosystems. Hurricane landfall rates vary greatly with high and low frequency for given coastal stretches of the southeastern United States. Site-specific meteorological data of hurricane wind speeds and direction, however, are only available...
Endogenic carbonate sedimentation in Bear Lake, Utah and Idaho, over the last two glacial-interglacial cycles
W.E. Dean
2009, Special Paper of the Geological Society of America 169-196
Sediments deposited over the past 220,000 years in Bear Lake, Utah and Idaho, are predominantly calcareous silty clay, with calcite as the dominant carbonate mineral. The abundance of siliciclastic sediment indicates that the Bear River usually was connected to Bear Lake. However, three marl intervals containing more than 50% CaCO3...
Wetland use and feeding by lesser scaup during spring migration across the upper Midwest, USA
M.J. Anteau, A. D. Afton
2009, Wetlands (29) 704-712
Low food availability and forage quality and concomitant decreased lipid reserves of lesser scaup (Aythya affinis; hereafter scaup) during spring migration in the upper Midwest may partially explain reductions in the continental population of scaup. In springs 20042005, we examined wetland use and feeding activity of scaup on 356 randomly-selected...
Phosphorus and nitrogen legacy in a restoration wetland, upper Klamath lake, Oregon
J.H. Duff, K.D. Carpenter, D.T. Snyder, Karl K. Lee, R.J. Avanzino, F.J. Triska
2009, Wetlands (29) 735-746
The effects of sediment, ground-water, and surface-water processes on the timing, quantity, and mechanisms of N and P fluxes were investigated in the Wood River Wetland 57 years after agricultural practices ceased and seasonal and permanent wetland hydrologies were restored. Nutrient concentrations in standing water largely reflected ground water in...
Paleomagnetism and environmental magnetism of GLAD800 sediment cores from Bear Lake, Utah and Idaho
C.W. Heil Jr., J.W. King, J. G. Rosenbaum, R. L. Reynolds, Steven M. Colman
2009, Special Paper of the Geological Society of America 291-310
A ???220,000-year record recovered in a 120-m-long sediment core from Bear Lake, Utah and Idaho, provides an opportunity to reconstruct climate change in the Great Basin and compare it with global climate records. Paleomagnetic data exhibit a geomagnetic feature that possibly occurred during the Laschamp excursion (ca. 40 ka). Although...
Widespread occurrence of the chytrid fungus batrachochytrium dendrobatidis on oregon spotted frogs (rana pretiosa)
C.A. Pearl, J. Bowerman, M.J. Adams, N.D. Chelgren
2009, EcoHealth (6) 209-218
The pathogen Batrachochytrium dendrobatidis (Bd) has been associated with amphibian declines in multiple continents, including western North America. We investigated Bd prevalence in Oregon spotted frog (Rana pretiosa), a species that has declined across its range in the Pacific Northwest. Polymerase chain reaction analysis of skin swabs indicated that Bd...
Home range, habitat selection, and movements of California Black Rails at tidal marshes at San Francisco Bay, California
Danika C. Tsao, John Y. Takekawa, Isa Woo, Julie L. Yee, Jules G. Evens
2009, The Condor (111) 599-610
Little is known about the movements and habitat selection of California Black Rails (Laterallus jamaicensis coturniculus) in coastal California. We captured 130 Black Rails, of which we radio-marked 48, in tidal marshes in San Francisco Bay during 2005 and 2006. Our objective was to examine their home ranges, movements, and...
Large area scene selection interface (LASSI): Methodology of selecting landsat imagery for The Global Land Survey 2005
S. Franks, J. G. Masek, R.M.K. Headley, J. Gasch, T. Arvidson
2009, Photogrammetric Engineering and Remote Sensing (75) 1287-1296
The Global Land Survey (GLS) 2005 is a cloud-free, orthorec-tified collection of Landsat imagery acquired during the 2004 to 2007 epoch intended to support global land-cover and ecological monitoring. Due to the numerous complexities in selecting imagery for the GLS2005, NASA and the U.S. Geological Survey (USGS) sponsored the development...
Nesting ecology of greater sage-grouse Centrocercus urophasianus at the eastern edge of their historic distribution
K. M. Herman-Brunson, K. C. Jensen, N. W. Kaczor, C. C. Swanson, M. A. Rumble, R. W. Klaver
2009, Wildlife Biology (15) 237-246
Greater sage-grouse Centrocercus urophasianus populations in North Dakota declined approximately 67% between 1965 and 2003, and the species is listed as a Priority Level 1 Species of Special Concern by the North Dakota Game and Fish Department. The habitat and ecology of the species at the eastern edge of its historical range...
The glacial/deglacial history of sedimentation in Bear Lake, Utah and Idaho
J. G. Rosenbaum, C.W. Heil Jr.
2009, Special Paper of the Geological Society of America 247-261
Bear Lake, in northeastern Utah and southern Idaho, lies in a large valley formed by an active half-graben. Bear River, the largest river in the Great Basin, enters Bear Lake Valley ???15 km north of the lake. Two 4-m-long cores provide a lake sediment record extending back ???26 cal k.y....
