Erysipelas in a free-ranging Hawaiian crow (Corvus hawaiiensis)
Thierry M. Work, Donna L. Ball, Mark Wolcott
1999, Avian Diseases (43) 338-341
We describe a case of erysipelas in a free-ranging endangered Hawaiian crow. The partially scavenged carcass exhibited gross emaciation and petechial hemorrhages in both lungs. Microscopy revealed multiple necrotic foci associated with gram-positive rods in the liver and adrenal, diffuse acute proximal tubular necrosis of kidney, diffuse necrosis and inflammation...
Geologic continuous casting below continental and deep-sea detachment faults and at the striated extrusion of Sacsayhuaman, Peru
J.E. Spencer
1999, Geology (27) 327-330
In one common type of industrial continuous casting, partially molten metal is extruded from a vessel through a shaped orifice called a mold in which the metal assumes the cross-sectional form of the mold as it cools and solidifies. Continuous casting can be...
Dr. Cooper Curtice - Unknown worker in interpreting the Cambrian of Alabama
E. L. Yochelson, W.E. Osborne
1999, Southeastern Geology (38) 215-222
Cooper Curtice was an assistant to C. D. Walcott from 1883-1886. In 1885, he spent four months, mostly in Alabama, measuring sections of Paleozoic rocks and searching for fossils, mainly in the Cambrian. In 1888, Walcott concurred with foreign authorities that the rocks called Middle Cambrian in North America were...
Response of the Rio Grande and shallow ground water in the Mesilla Bolson to irrigation, climate stress, and pumping
J. Walton, G. Ohlmacher, D. Utz, M. Kutianawala
1999, Environmental & Engineering Geoscience (5) 41-50
The El Paso-Ciudad Juarez metropolitan area obtains its water from the Rio Grande and intermontane-basin aquifers. Shallow ground water in this region is in close communication with the surface water system. A major problem with both systems is salinity. Upstream usage of the water in the Rio Grande for irrigation...
Loss from harlequin ducks of abdominally implanted radio transmitters equipped with percutaneous antennas
D.M. Mulcahy, Daniel Esler, M. K. Stoskopf
1999, Journal of Field Ornithology (70) 244-250
We documented extrusion and loss of abdominally implanted radio transmitters with percutaneous antennas from adult female Harlequin Ducks (Histrionicus histrionicus). Birds were captured during wing molt (late August to mid-September) in 1995-1997. Of 44 Harlequin Ducks implanted with radios and recaptured, 7 (16%) had lost their transmitters and 5 (11%)...
Hosts of Pyganodon cataracta (eastern floater) and Strophitus undulatus (squawfoot) from the Upper Susquehanna River basin, Pennsylvania
E. van Snik Gray, W.A. Lellis, J. C. Cole, C.S. Johnson
1999, Report 18
No abstract available at this time...
Soil-like deposits observed by Sojourner, the Pathfinder rover
Henry J. Moore, Donald B. Bickler, Joy A. Crisp, Howard J. Eisen, Jeffrey A. Gensler, Albert F.C. Haldemann, Jacob R. Matijevic, Lisa K. Reid, Ferenc Pavlics
1999, Journal of Geophysical Research E: Planets (104) 8729-8746
Most of the soil-like materials at the Pathfinder landing site behave like moderately dense soils on Earth with friction angles near 34°-39° and are called cloddy deposits. Cloddy deposits appear to be poorly sorted with dust-sized to granule-sized mineral or rock grains; they may contain pebbles, small rock fragments, and...
Effects of environmental change on plant species density: Comparing predictions with experiments
L. Gough, J.B. Grace
1999, Ecology (80) 882-890
Ideally, general ecological relationships may be used to predict responses of natural communities to environmental change, but few attempts have been made to determine the reliability of predictions based on descriptive data. Using a previously published structural equation model (SEM) of descriptive data from a coastal marsh landscape, we compared...
Possible cause for an improbable earthquake: The 1997 MW 4.9 southern Alabama earthquake and hydrocarbon recovery
J. Gomberg, L. Wolf
1999, Geology (27) 367-370
Circumstantial and physical evidence indicates that the 1997 MW 4.9 earthquake in southern Alabama may have been related to hydrocarbon recovery. Epicenters of this earthquake and its aftershocks were located within a few kilometers of active oil and gas extraction wells and two pressurized injection wells. Main shock and aftershock...
Prevalence of Renibacterium salmoninarum in juvenile spring chinook salmon at Columbia and Snake river hatcheries, 1993-1996
S. P. VanderKooi, A.G. Maule
1999, Journal of Aquatic Animal Health (11) 162-169
We monitored the prevalence and severity of Renibacterium salmoninarum (RS) infections in juvenile hatchery spring chinook salmon Oncorhynchus tshawytscha at eight Columbia and Snake river hatcheries from 1993 through 1996. This study followed a prior study that monitored RS in the same hatcheries from 1988 through 1992. In the current...
Historical trends in salinity and substrate in central Florida Bay: A paleoecological reconstruction using modern analogue data
G. L. Brewster-Wingard, S. E. Ishman
1999, Estuaries (22) 369-383
Understanding the natural spatial and temporal variability that exists within an ecosystem is a critical component of efforts to restore systems to their natural state. Analysis of benthic foraminifers and molluscs from modern monitoring sites within Florida Bay allows us to determine what environmental parameters control spatial and temporal variability...
Evaluation of AQUI-S(TM) (efficacy and minimum toxic concentration) as a fish anaesthetic/sedative for public aquaculture in the United States
G. R. Stehly, W.H. Gingerich
1999, Aquaculture Research (30) 365-372
A preliminary evaluation of efficacy and minimum toxic concentration of AQUI-S(TM), a fish anaesthetic/sedative, was determined in two size classes of six species of fish important to US public aquaculture (bluegill, channel catfish, lake trout, rainbow trout, walleye and yellow perch). In addition, efficacy and minimum toxic concentration were determined...
In situ detection of the Clostridium botulinum type C1 toxin gene in wetland sediments with a nested PCR assay
Judy L. Williamson, Tonie E. Rocke, Judd M. Aiken
1999, Applied and Environmental Microbiology (65) 3240-3243
A nested PCR was developed for detection of the Clostridium botulinum type C1 toxin gene in sediments collected from wetlands where avian botulism outbreaks had or had not occurred. The C1 toxin gene was detected in 16 of 18 sites, demonstrating both the ubiquitous distribution of C. botulinum type C in wetland sediments and the sensitivity...
Hydraulic and geochemical performance of a permeable reactive barrier containing zero-valent iron, Denver Federal Center
P.B. McMahon, K.F. Dennehy, Mark W. Sandstrom
1999, Ground Water (37) 396-404
The hydraulic and geochemical performance of a 366 m long permeable reactive barrier (PRB) at the Denver Federal Center, Denver, Colorado, was evaluated. The funnel and gate system, which was installed in 1996 to intercept and remediate ground water contaminated with chlorinated aliphatic hydrocarbons (CAHs), contained four 12.2 m wide...
Assessment of Mars Pathfinder landing site predictions
M.P. Golombek, H. J. Moore, A. F. C. Haldemann, T. J. Parker, J. T. Schofield
1999, Journal of Geophysical Research E: Planets (104) 8585-8594
Remote sensing data at scales of kilometers and an Earth analog were used to accurately predict the characteristics of the Mars Pathfinder landing site at a scale of meters. The surface surrounding the Mars Pathfinder lander in Ares Vallis appears consistent with orbital interpretations, namely, that it would be a...
An environmental tolerance index for ostracodes as indicators of physical and chemical factors in aquatic habitats
B. Brandon Curry
1999, Conference Paper, Palaeogeography, Palaeoclimatology, Palaeoecology
Continental ostracode occurrences reflect salinity, solute composition, temperature, flow conditions, and other environmental properties of the water they inhabit. Their occurrences also reflect the variability of many of these environmental parameters. Environmental tolerance indices (ETIs) offer a new way to express the nature of an ostracode's environment. As defined herein,...
Miscellaneous parasitic diseases
Rebecca A. Cole, M. Friend
1999, Information and Technology Report 1999-0001
Free-ranging wild birds are afflicted with numerous other parasites that occasionally cause illness and death. Some of these parasites, such as two of the trematodes or flukes highlighted below, can cause major die-offs. This section about parasitic diseases concludes with descriptions of some additional parasites that field biologists may encounter...
Population size of Cuban Parrots Amazona leucocephala and Sandhill Cranes Grus canadensis and community involvement in their conservation in northern Isla de la Juventud, Cuba
X. G. Aguilera, V. B. Alvarez, J. W. Wiley, J. R. Rosales
1999, Bird Conservation International (9) 97-112
The Cuban Sandhill Crane Grus canadensis nesiotes and Cuban Parrot Amazona leucocephala palmarum are considered endangered species in Cuba and the Isla de la Juventud (formerly Isla de Pinos). Coincident with a public education campaign, a population survey for these species was conducted in the northern part of the Isla de la...
Pedogenic calcite as evidence for an early Holocene dry period in the San Francisco Bay area, California
G. Borchardt, J. J. Lienkaemper
1999, Geological Society of America Bulletin (111) 906-918
Rainfall at the site of Union City, California, during early Holocene time appears to have been about half that of today, 470 mm/yr. We base this conclusion on detailed descriptions and particle-size analyses of 12 soil profiles and 1:20 scale logs of the...
Component flow processes at four streams in the Catskill Mountains, New York, analysed using episodic concentration/discharge relationship
C. Evans, T.D. Davies, Peter S. Murdoch
1999, Hydrological Processes (13) 563-575
Plots of solute concentration against discharge have been used to relate stream hydrochemical variations to processes of flow generation, using data collected at four streams in the Catskill Mountains, New York, during the Episodic Response Project of the US Environmental Protection Agency. Results suggest that a two-component system of shallow...
Candidiasis
M. Friend
1999, Information and Technology Report 1999-0001
Candida albicans, a yeast-like fungi, is the primary cause of candidiasis or candidiosis. C. albicans is a normal inhabitant of the human alimentary canal, as well as that of many species of lower animals. Ingestion in food or in water is the usual means for its transmission. Contaminated environments, such...
How many stakes are required to measure the mass balance of a glacier?
A. G. Fountain, A. Vecchia
1999, Geografiska Annaler, Series A: Physical Geography (81) 563-573
Glacier mass balance is estimated for South Cascade Glacier and Maclure Glacier using a one-dimensional regression of mass balance with altitude as an alternative to the traditional approach of contouring mass balance values. One attractive feature of regression is that it can be applied to...
Duck plague
M. Friend
1999, Information and Technology Report 1999-0001
Duck plague is caused by a herpesvirus. Infection often results in an acute, contagious, and fatal disease. As with many other herpesviruses, duck plague virus can establish inapparent infections in birds that survive exposure to it, a state referred to as latency. During latency, the virus cannot be detected by...
Standards for assessment of age and growth data for channel catfish
W.A. Hubert
1999, Journal of Freshwater Ecology (14) 313-326
Standards for the assessment of age and growth data for channel catfish (Ictalurus punctatus) were developed using published data. A representative set of 102 studies of individual populations from across the geographic range of channel catfish was selected. Percentile values (5, 10, 25, 50, 75, 90, and 95th)...
Metal emissions from Kilauea, and a suggested revision of the estimated worldwide metal output by quiescent degassing of volcanoes
T. K. Hinkley, P. J. Lamothe, S. A. Wilson, David L. Finnegan, T.M. Gerlach
1999, Earth and Planetary Science Letters (170) 315-325
Measurements of a large suite of metals (Pb, Cd, Cu, Zn and several others) and sulfur at Kilauea volcano over an extended period of time has yielded a detailed record of the atmospheric injection of ordinarily-rare metals from this quiescently degassing volcano, representative of an important type. We have combined...
