Centrarchid assemblages in Mississippi state-operated fishing lakes
J.A. Olive, L.E. Miranda, W.D. Hubbard
2005, North American Journal of Fisheries Management (25) 7-15
We evaluated electrofishing catch per effort in 27 state-operated fishing lakes in Mississippi to identify patterns of centrarchid community composition and to determine whether those patterns were related to selected environmental characteristics and to artificial nutrient enrichment. Ordination with detrended correspondence analysis recognized two major axes accounting for 77% of...
Do wintering Harlequin Ducks forage nocturnally at high latitudes?
Daniel Rizzolo, Daniel Esler, Daniel D. Roby, Robert L. Jarvis
2005, Condor (107) 173-177
We monitored radio-tagged Harlequin Ducks (Histrionicus histrionicus) to determine whether nocturnal feeding was part of their foraging strategy during winter in south-central Alaska. Despite attributes of our study site (low ambient temperatures, harsh weather, short day length) and study species (small body size, high daytime foraging rates) that would be...
"Sour gas" hydrothermal jarosite: Ancient to modern acid-sulfate mineralization in the southern Rio Grande Rift
V.W. Lueth, R. O. Rye, L. Peters
2005, Chemical Geology (215) 339-360
As many as 29 mining districts along the Rio Grande Rift in southern New Mexico contain Rio Grande Rift-type (RGR) deposits consisting of fluorite-barite??sulfide-jarosite, and additional RGR deposits occur to the south in the Basin and Range province near Chihuahua, Mexico. Jarosite occurs in many of these deposits as a...
A geostatistical approach for describing spatial pattern in stream networks
L.M. Ganio, C.E. Torgersen, R. E. Gresswell
2005, Frontiers in Ecology and Evolution (3) 138-144
The shape and configuration of branched networks influence ecological patterns and processes. Recent investigations of network influences in riverine ecology stress the need to quantify spatial structure not only in a two-dimensional plane, but also in networks. An initial step in understanding data from stream networks is discerning non-random patterns...
Sheet flow and suspended sediment due to wave groups in a large wave flume
C. M. Dohmen-Janssen, D.M. Hanes
2005, Continental Shelf Research (25) 333-347
A series of sand bed experiments was carried out in the Large Wave Flume in Hannover, Germany as a component of the SISTEX99 experiment. The experiments focussed on the dynamic sediment response due to wave group forcing over a flat sand bed in order to improve understanding of cross-shore sediment...
Development of ground-motion prediction equations relevant to shallow-mining-induced seismicity in the Trial Mountain area, Emery County, Utah
Art McGarr, Joe B. Fletcher
2005, Bulletin of the Seismological Society of America (95) 31-47
To provide a basis for assessing the seismic hazard to the Joes Valley Dam due to future coal mining in the nearby Cottonwood Tract, central Utah, we developed ground-motion prediction relations using data recorded by a seismic network, established and operated by the University of Utah Seismograph Stations. The network...
Effects of biotic and abiotic factors on the distribution of trout and salmon along a longitudinal stream gradient
Hoz Franco De La Franco, E. A., P. Budy
2005, Environmental Biology of Fishes (72) 379-391
We examined the influence of biotic and abiotic factors on the distribution, abundance, and condition of salmonid fishes along a stream gradient. We observed a longitudinal change in fish distribution with native cutthroat trout, Oncorhynchus clarki utah, and introduced brown trout, Salmo trutta, demonstrating a distinct pattern of allopatry. Cutthroat...
Tropical cyclones and the flood hydrology of Puerto Rico
James A. Smith, Paula Sturdevant-Rees, Mary Lynn Baeck, Matthew C. Larsen
2005, Water Resources Research (41)
Some of the largest unit discharge flood peaks in the stream gaging records of the U.S. Geological Survey (USGS) have occurred in Puerto Rico. Many of these flood peaks are associated with tropical cyclones. Hurricane Georges, which passed directly over the island on 21–22 September 1998, produced record flood peaks...
Transient population dynamics: Relations to life history and initial population state
D. N. Koons, J.B. Grand, B. Zinner, R.F. Rockwell
2005, Ecological Modelling (185) 283-297
Most environments are variable and disturbances (e.g., hurricanes, fires) can lead to substantial changes in a population's state (i.e., age, stage, or size distribution). In these situations, the long-term (i.e., asymptotic) measure of population growth rate (??1) may inaccurately represent population growth in the short-term. Thus, we calculated the short-term...
Hydrologic properties of coal-beds in the Powder River Basin, Montana: II. Aquifer test analysis
E.P. Weeks
2005, Journal of Hydrology (308) 242-257
A multiple well aquifer test to determine anisotropic transmissivity was conducted on a coal-bed in the Powder River Basin, southeastern Montana, as part of a multidisciplinary investigation to determine hydrologic conditions of coal-beds in the area. For the test, three wells were drilled equidistant from and at different angles to a production well tapping the Flowers–Goodale coal seam,...
Evidence for subsurface water ice in Korolev crater, Mars
John C. Armstrong, Timothy N. Titus, Hugh H. Kieffer
2005, Icarus (174) 360-372
Following the work of Kieffer and Titus (2001, Icarus 154, 162–180), we present results of thermal IR observations of Korolev crater, located at ∼73°">∼73° latitude in the martian northern polar region. Similar to techniques employed by Titus et al. (2003, Science 299, 1048–1050), we...
Total mercury concentrations in fillets of bluegill, redear sunfish, largemouth bass, and other fishes from Lake Natoma, Sacramento County, California
M. K. Saiki, B.A. Martin, T.W. May, Charles N. Alpers
2005, California Fish and Game (91) 193-206
This study was conducted during September-October 2002 to verify preliminary findings of elevated total mercury concentrations in skinless fillets of sportfishes inhabiting Lake Natoma. Although we measured total mercury concentrations, most mercury in fish flesh occurs in the methylated form. In August 2000, other investigators collected a small number of...
Evidence for a global seismic-moment release sequence
C. G. Bufe, D. M. Perkins
2005, Bulletin of the Seismological Society of America (95) 833-843
Temporal clustering of the larger earthquakes (foreshock-mainshock-aftershock) followed by relative quiescence (stress shadow) are characteristic of seismic cycles along plate boundaries. A global seismic-moment release history, based on a little more than 100 years of instrumental earthquake data in an extended version of the catalog of Pacheco and Sykes (1992),...
Cortisol receptor blockade and seawater adaptation in the euryhaline teleost Fundulus heteroclitus
W.S. Marshall, R.R.F. Cozzi, Ryan M. Pelis, S. D. McCormick
2005, Journal of Experimental Zoology Part A: Comparative Experimental Biology (303) 132-142
To examine the role of cortisol in seawater osmoregulation in a euryhaline teleost, adult killifish were acclimated to brackish water (10???) and RU486 or vehicle was administered orally in peanut oil daily for five days at low (40 mg.kg-1) or high dose (200 mg.kg-1). Fish were transferred to 1.5 x...
Movements of walruses radio-tagged in Bristol Bay, Alaska
Chadwick V. Jay, Susan Hills
2005, Arctic (58) 192-202
Satellite radio-location data from 57 adult male Pacific walruses (Odobenus rosmarus divergens) were used to estimate haul-out fidelity, broadly describe seasonal foraging distributions, and determine the approximate timing of autumn migration from Bristol Bay, Alaska. Data were collected intermittently during 1987–91 and 1995–2000, primarily during the period from May to...
Episodic incision of the Colorado River in Glen Canyon, Utah
C. D. Garvin, Thomas C. Hanks, R.C. Finkel, A.M. Heimsath
2005, Earth Surface Processes and Landforms (30) 973-984
Incision rates of the Colorado River are integral to understanding the development of the Colorado Plateau. Here we calculate episodic incision rates of the Colorado River based on absolute ages of two levels of Quaternary deposits adjacent to Glen Canyon, Utah, along the north flank of Navajo Mountain. Minimum surface...
Burrowing mayflies as indicators of ecosystem health: Status of populations in western Lake Erie, Saginaw Bay and Green Bay
T.A. Edsall, M.T. Bur, O. T. Gorman, J.S. Schaeffer
2005, Aquatic Ecosystem Health & Management (8) 107-116
The U.S. Environmental Protection Agency and Environment Canada are supporting the development of indicators of ecosystem health that can be used to report on progress in restoring and maintaining the Great Lakes ecosystem, as called for in the Great Lakes Water Quality Agreement between the United States and Canada. One...
Modeling downstream fining in sand-bed rivers. II: Application
S. Wright, G. Parker
2005, Journal of Hydraulic Research (43) 621-631
In this paper the model presented in the companion paper, Wright and Parker (2005) is applied to a generic river reach typical of a large, sand-bed river flowing into the ocean in order to investigate the mechanisms controlling longitudinal profile development and downstream fining. Three mechanisms which drive downstream fining...
An evaluation of the strong ground motion recorded during the May 1, 2003 Bingol Turkey, earthquake
Sinan Akkar, David M. Boore, Polat Gulkan
2005, Journal of Earthquake Engineering (9) 173-197
An important record of ground motion from a M6.4 earthquake occurring on May 1, 2003, at epicentral and fault distances of about 12 and 9 km, respectively, was obtained at a station near the city of Bingöl, Turkey. The maximum peak ground values of 0.55g and 36 cm/s are among the...
Impacts of new highways and subsequent landscape urbanization on stream habitat and biota
A.P. Wheeler, P. L. Angermeier, A.E. Rosenberger
2005, Reviews in Fisheries Science (13) 141-164
New highways are pervasive, pernicious threats to stream ecosystems because of their short- and long-term physical, chemical, and biological impacts. Unfortunately, standard environmental impact statements (EISs) and environmental assessments (EAs) focus narrowly on the initial direct impacts of construction and ignore other long-term indirect impacts. More thorough consideration of highway...
Holocene and latest Pleistocene oblique dextral faulting on the southern Inyo Mountains fault, Owens Lake basin, California
S.N. Bacon, A. S. Jayko, J. P. McGeehin
2005, Bulletin of the Seismological Society of America (95) 2472-2485
The Inyo Mountains fault (IMF) is a more or less continuous range-front fault system, with discontinuous late Quaternary activity, at the western base of the Inyo Mountains in Owens Valley, California. The southern section of the IMF trends ???N20??-40?? W for at least 12 km at the base of and...
Striped newt. Notophthalmus perstriatus (Bishop), 1941
C.K. Dodd Jr., D.B. Means, S. A. Johnson
M.J. Lannoo, editor(s)
2005, Book chapter, Declining Amphibians: The Conservation Status of United States Species.
Abstract not supplied at this time...
Population manipulations
C.K. Dodd Jr.
M.J. Lannoo, editor(s)
2005, Book chapter, Declining Amphibians: The Conservation Status of United States Species.
Abstract not supplied at this time...
Wildlife health and disease investigations
T.J. Roffe, Thierry M. Work
C.E. Braun, editor(s)
2005, Book chapter, Techniques for wildlife investigations and management
Wildlife population management requires knowledge of factors that affect population sustainability. Mortality is one of the most important of those factors. Without a clear understanding of the causes of mortality, decisions by managers of whether or how to intercede may be inappropriate. Wildlife biologists are usually the first to discover,...
Risk factors and declines in northern cricket frogs (Acris crepitans)
V.R. Beasley, S. Faeh, B. Wikoff, C. Staehle, J. Eisold, D. Nichols, Rebecca A. Cole, A. Schotthoefer, M. Greenwell, L. Brown
M.J. Lannoo, editor(s)
2005, Book chapter, Amphibian declines: The conservation status of United States species
