Effects of implanted transmitters on adult bluegills at two temperatures
Brent C. Knights, Becky A. Lasee
1996, Transactions of the American Fisheries Society (125) 440-449
Laterally compressed panfishes are small and have limited intraperitoneal space; thus, they may suffer adversely from surgically implanted transmitters even if the transmitter meets the generally recommended ratio of transmitter weight to fish weight of 2%. We studied the effects of intraperitoneal transmitters (2.81 g) on survival,...
Structural damage, ground failure, and hydrologic effects of the magnitude (Mw) 5.9 Draney Peak, Idaho, earthquake of February 3, 1994
R. L. Schuster, W. Murphy
1996, Seismological Research Letters (67) 20-29
No abstract available....
Metastable mantle phase transformations and deep earthquakes in subducting oceanic lithosphere
S. H. Kirby, S. Stein, E.A. Okal, David C. Rubie
1996, Reviews of Geophysics (34) 261-306
Earth's deepest earthquakes occur as a population in subducting or previously subducted lithosphere at depths ranging from about 325 to 690 km. This depth interval closely brackets the mantle transition zone, characterized by rapid seismic velocity increases resulting from the transformation of upper mantle minerals to higher-pressure phases. Deep earthquakes...
Episodic acidification of small streams in the northeastern United States: Episodic response project
P.J. Wigington Jr., J.P. Baker, David R. DeWalle, W.A. Kretser, Peter S. Murdoch, H. A. Simonin, J. Van Sickle, M.K. Mcdowell, D.V. Peck, W.R. Barchet
1996, Ecological Applications (6) 374-388
The Episodic Response Project (ERP) was an interdisciplinary study designed to address uncertainties about the occurrence, nature, and biological effects of episodic acidification of streams in the northeastern United States. The ERP research consisted of intensive studies of the chemistry and biological effects of episodes in 13 streams draining forested...
Magmatic infiltration and melting in the lower crust and upper mantle beneath the Cima volcanic field, California
H. G. Wilshire, A. V. McGuire
1996, Contributions to Mineralogy and Petrology (123) 358-374
Xenoliths of lower crustal and upper mantle rocks from the Cima volcanic field (CVF) commonly contain glass pockets, veins, and planar trains of glass and/or fluid inclusions in primary minerals. Glass pockets occupy spaces formerly occupied by primary minerals of the host rocks, but there is a general lack of...
Photogeologic and reconnaissance geologic map of the Smith Creek and Smith Creek NE quadrangles, Rosebud County, Montana
R. B. Colton, J.L. Klockenbrink, M.S. Ellis, M. A. Grout, E.L. Heffern
1996, Miscellaneous Field Studies Map 2301
Overview of a simple model describing variation of dissolved organic carbon in an upland catchment
Elizabeth W. Boyer, George M. Hornberger, Kenneth E. Bencala, Diane M. McKnight
1996, Ecological Modelling (86) 183-188
Hydrological mechanisms controlling the variation of dissolved organic carbon (DOC) were investigated in the Deer Creek catchment located near Montezuma, CO. Patterns of DOC in streamflow suggested that increased flows through the upper soil horizon during snowmelt are responsible for flushing this DOC-enriched interstitial water to the streams. We examined...
Lipid and water depletion in migrating passerines following passage over the Gulf of Mexico
P.L. Leberg, T. J. Spengler, Wylie C. Barrow Jr.
1996, Oecologia (106) 1-7
Lipid depletion is currently believed to be the primary factor limiting flight duration of migrating birds in North America, while the influence of water loss is thought to be small. Three migrating species of passerines, wood thrush (Hylocichla mustelina), Swainson's thrush (Catharus ustulatus), and summer tanager...
Glutathione conjugation and contaminant transformation
Jennifer A. Field, E.M. Thurman
1996, Environmental Science & Technology (30) 1413-1418
The recent identification of a novel sulfonated metabolite of alachlor in groundwater and metolachlor in soil is likely the result of glutathione conjugation. Glutathione conjugation is an important biochemical reaction that leads, in the case of alachlor, to the formation of a rather difficult to detect, water-soluble, and therefore highly...
Histology of the first fish
M.P. Smith, I.J. Sansom, J.E. Repetski
1996, Nature (380) 702-704
The first description of Anatolepis Bockelie & Fortey was from early Ordovician sediments of Ny Friesland, Spitsbergen1,2, but the genus is now known from many localities in North America and Greenland, ranging in age from the Late Cambrian period to the Early Ordovician3–6. Although initially interpreted as an agnathan fish2,3 that predated other...
Phylogenetic analysis of dissimilatory Fe(III)-reducing bacteria
D.J. Lonergan, H. L. Jenter, J.D. Coates, Elizabeth J.P. Phillips, T.M. Schmidt, Derek R. Lovley
1996, Journal of Bacteriology (178) 2402-2408
Evolutionary relationships among strictly anaerobic dissimilatory Fe(III)-reducing bacteria obtained from a diversity of sedimentary environments were examined by phylogenetic analysis of 16S rRNA gene sequences. Members of the genera Geobacter, Desulfuromonas, Pelobacter, and Desulfuromusa formed a monophyletic group within the delta subdivision of the class Proteobacteria. On the basis of...
How many grizzlies in Yellowstone?
L.L. Eberhardt, R.R. Knight
1996, Journal of Wildlife Management (60) 416-421
Trend data indicate that the Yellowstone grizzly bear (Ursus arctos horribilis) population has been increasing in recent years, after a decline induced by closure of open garbage dumps in 1970-71. Current population size appears to be approaching a level where management to curb further increases might be desirable, even though...
Trace elements and organic contaminants in stream sediments from the Red River of the North Basin
M. E. Brigham, L. H. Tornes
1996, Conference Paper, North Dakota Water Quality Symposium
To assess the presence and distribution of a variety of hydro-phobic chemicals in streams in the Red River of the North Basin, bottom sediments were analyzed for trace elements, organochlorines, and polycyclic aromatic hydrocarbons (PAHs). Glaciolacustrine clays and carbonate minerals are common in...
Use of ground-penetrating radar and continuous seismic-reflection profiling on surface-water bodies in environmental and engineering studies
F.P. Haeni
1996, Journal of Environmental & Engineering Geophysics (1) 27-35
Ground‐penetrating radar (GPR) and continuous seismic‐reflection profiling (CSP) on shallow rivers, lakes, and ponds are efficient and economical ways of obtaining subsurface hydrologic and geologic information for environmental and engineering studies. These methods are similar in that they produce continuous subsurface profiles, are easy to use in some applications, and...
Extent and control of resource damage due to noncompliant visitor behavior: A case study from the U.S. National Parks
Darryll R. Johnson, Mark E. Vande Kamp
1996, Natural Areas Journal (16) 4-17
No abstract available....
Instability of bottom-water redox conditions during accumulation of Quaternary sediment in the Japan Sea
D.Z. Piper, C.M. Isaacs
1996, Paleoceanography and Paleoclimatology (11) 171-190
The concentrations of Cd, Cr, Cu, Mo, Ni, Sb, U, V, and Zn were measured in early Quaternary sediment (1.32 to 1.08 Ma) from the Oki Ridge in the Japan Sea. The elements were partitioned between a detrital fraction, composed of terrigenous and volcaniclastic aluminosilicate debris, and a marine fraction,...
Crustal and upper mantle velocity structure of the Salton Trough, southeast California
T. Parsons, J. McCarthy
1996, Tectonics (15) 456-471
This paper presents data and modelling results from a crustal and upper mantle wide-angle seismic transect across the Salton Trough region in southeast California. The Salton Trough is a unique part of the Basin and Range province where mid-ocean ridge/transform spreading in the Gulf of California has evolved northward into...
Far-travelled Permian chert of the North Fork terrane, Klamath Mountains, California
Edward A. Mankinen, W. P. Irwin, C.D. Blome
1996, Tectonics (15) 314-328
Permian chert in the North Fork terrane and correlative rocks of the Klamath Mountains province has a remanent magnetization that is prefolding and presumably primary. Paleomagnetic results indicate that the chert formed at a paleolatitude of 8.6° ± 2.5° but in which hemisphere remains uncertain. This finding requires that these...
Statistical summaries of streamflow data for selected gaging stations in Idaho and adjacent states through September 1990 - Volume 1: Gaging stations with 10 or more years of record
L.C. Kjelstrom, M. A. J. Stone, W. A. Harenberg
1996, Water-Resources Investigations Report 94-4069
This volume presents statistical summaries of streamflow data for 257 gaging stations with 10 or more years of continuous record through September 1990. The gaging stations are located in Idaho and adjacent States. Volume 2 presents statistical summaries of streamflow data for 76 gaging stations with 5 to 9 years...
Long-term declines in nest success of prairie ducks
W.D. Beauchamp, Rolf R. Koford, Thomas D. Nudds, Robert G. Clark, Douglas H. Johnson
1996, Journal of Wildlife Management (60) 247-257
Increased predation on nests of ducks in prairie uplands, as a result of habitat alteration, has been hypothesized to cause decreased nest success and population sizes. We tested whether, and by how much, nest success declined using data compiled from 37 studies conducted between 1935 and 1992 at 67 sites...
Pliocene and early Pleistocene environments and climates of the western Snake River Plain, Idaho
Robert S. Thompson
1996, Marine Micropaleontology (27) 141-156
Sedimentological, palynological, and magnetic susceptibility data provide paleoenvironmental and paleoclimatic information from a 989 ft (301 m) core of sediments from the upper Glenns Ferry and Bruneau Formations from near the town of Bruneau in Owyhee County, Idaho. Chronology is based on stratigraphic position, paleomagnetism, and biostratigraphic data, which collectively...
Hydrogeologic framework of the Great Basin region of Nevada, Utah, and adjacent states
R. W. Plume
1996, Professional Paper 1409-B
Regional aquifer systems in the Great Basin consist of carbonate-rock aquifers in the eastern Great Basin and basin-fill aquifers throughout the region. In the carbonate-rock aquifers, barriers to regional flow include Precambrian crystalline basement, upper Precambrian and Lower Cambrian clastic sedimentary rocks, and Jurassic to Tertiary granitic rocks. Basin-fill aquifers...
Diatom constraints on the position of the Antarctic Polar Front in the middle part of the Pliocene
John A. Barron
1996, Marine Micropaleontology (27) 195-213
The relative percentages of diatom taxa in 5 deep-sea cores (DSDP 266, ODP 699A, ODP 747A, ODP 751 A, and Eltanin Core 50-28) from the Southern Ocean are determined for an interval centered on 3.1 to 2.9 Ma in the middle part of the Pliocene. This climatically warm interval, which...
Middle Pliocene vegetation: Reconstructions, paleoclimatic inferences, and boundary conditions for climate modeling
Robert S. Thompson, R.F. Fleming
1996, Marine Micropaleontology (27) 27-49
The general characteristics of global vegetation during the middle Pliocene warm period can be reconstructed from fossil pollen and plant megafossil data. The largest differences between Pliocene vegetation and that of today occurred at high latitudes in both hemispheres, where warming was pronounced relative to today. In the Northern Hemisphere...
Magnetic and gravity study of the Paducah 1° x 2° CUSMAP quadrangle, Illinois, Indiana, Kentucky, and Missouri
T.G. Hildenbrand, R.P. Kucks, Paul C. Heigold
1996, Bulletin 2150-C
No abstract available....
