Kauai's endangered solitaires: Update on population status and distribution 1996
Michelle H. Reynolds, Thomas J. Snetsinger, Christina M. Herrmann
1997, Transactions of the Western Section of the Wildlife Society (33) 49-55
The puaioihi (Myadestes palmeri) and the kamao (M. myadestinus) are endangered solitaires endemic to Kauai in the Hawaiian Islands and now restricted to the Alakai Swamp. The puaiohi has been rare historically with population estimates declining since the first population surveys 1968-73. Puaiohi were believed to be on the verge...
Introduced species: A significant component of human-caused global change
Peter M. Vitousek, Carla M. D'Antonio, Lloyd L. Loope, Marcel Rejmanek, Randy G. Westbrooks
1997, New Zealand Journal of Ecology (21) 1-16
Biological invasions are a widespread and significant component of human-caused global environmental change. The extent of invasions of oceanic islands, and their consequences for native biological diversity, have long been recognized. However, invasions of continental regions also are substantial. For example, more than 2,000 species of alien plants are established...
Composition of the crust in the Grenville and Appalachian Provinces of North America inferred from VP/VS ratios
G. Musacchio, Walter D. Mooney, James H. Luetgert, Nikolas I. Christensen
1997, Journal of Geophysical Research B: Solid Earth (102) 15225-15241
We use the ratios between P and S wave velocities (VP/VS), derived from seismic refraction data, to infer the composition of the crust in the Grenville and the Appalachian Provinces of North America. The crust exhibits VP/VS increasing with depth from 1.64 to 1.84; there is a clear distinction between the Grenville...
Status, ecology, and management of the invasive plant, Miconia calvescens DC (Melastomataceae) in the Hawaiian islands
Arthur C. Medieros, Lloyd L. Loope, P. Conant, S. McElvaney
1997, Bishop Museum Occasional Papers (48) 23-36
Miconia calvescens (Melastomataceae), native to montane forests of the neotropics, has now invaded wet forests of both the Society and Hawaiian Islands. This tree, which grows up to 15 m tall, is potentially the most invasive and damaging weed of rainforests of Pacific islands. In moist conditions, it grows rapidly,...
USGS Wildland Fire Workshop, EROS Data Center, Sioux Falls, SD, July 9-10, 1997
S. G. Coloff, J. Findley, Rosalind L. Helz
1997, Report
Report on the first workshop on USGS wildland fire expertise and capabilities. The workshop brought together operationaland research representatives ofthe Federal fire management agencies to initiate a more comprehensive assessmentofthe USGS's capabilities and the appropriate role(s) for USGS interaction and involvement with the fire community. Thereport discusses how the USGS...
1994 annual status report: a summary of fish data in six reaches of the upper Mississippi River system
Steve Gutreuter, Randy W. Burkhardt, Mark Stopyro, Andrew Bartels, Eric Kramer, Melvin C. Bowler, Frederick A. Cronin, Dirk W. Soergel, Michael D. Petersen, David P. Herzog, Paul T. Raibley, Kevin S. Irons, Timothy M. O’Hara
1997, Long Term Resource Monitoring Program 97-P007
The Long Term Resource Monitoring Program (LTRMP) completed 2,653 collections of fishes from stratified random and permanently fixed sampling locations in six study reaches of the Upper Mississippi River System during 1994. Collection methods included day and night electrofishing, hoop netting, fyke netting (two net sizes), gill netting, seining,...
European Province Late Silurian brachiopods from the Ciudad Victoria area, Tamaulipas, northeastern Mexico
A. J. Boucot, Robert B. Blodgett, John H. Stewart
1997, Book chapter, Paleozoic sequence stratigraphy, biostratigraphy, and biogeography: Studies in honor of J. Granville ("Jess") Johnson
No abstract available....
Geophysical setting of the Wabash Valley fault system
T.G. Hildenbrand, D. Ravat
1997, Seismological Research Letters (68) 567-585
Interpretation of existing regional magnetic and gravity data and new local high-resolution aeromagnetic data provides new insights on the tectonic history and structural development of the Wabash Valley Fault System in Illinois and Indiana. Enhancement of short-wavelength magnetic anomalies reveal numerous NW- to NNE-trending ultramafic dikes and six intrusive complexes...
Documentation and description of the digital spatial data base for southern California Regional Aquifer-System Analysis Program, Santa Clara-Calleguas Basin, Ventura County, California
Steven K. Predmore, Kathryn M. Koczot, Katherine S. Paybins
1997, Open-File Report 96-629
This report documents the geographic information system map layers and data files generated for the Santa Clara-Calleguas Basin, Ventura County, as part of a Regional Aquifer- System Analysis of southern California from 1989 to 1995. Thirty-six map layers and four data files are maintained in this geographic information system data...
Estimating age of sea otters with cementum layers in the first premolar
James L. Bodkin, Jack A. Ames, Ronald J. Jameson, Ancel M. Johnson, Gary M. Matson
1997, Journal of Wildlife Management (61) 967-973
We assessed sources of variation in the use of tooth cementum layers to determine age by comparing counts in premolar tooth sections to known ages of 20 sea otters (Enhydra lutris). Three readers examined each sample 3 times, and the 3 readings of each sample were averaged by reader to...
Public-Water Supplies in Massachusetts and Rhode Island: Investigations of Processes Affecting Source-Water Quality
Robert M. Lent, Marcus C. Waldron, John C. Rader
1997, Fact Sheet 054-97
Spatial earthquake hazard assessment of Evansville, Indiana
T.D. Rockaway, J.D. Frost, Donald L. Eggert, R. Luna
1997, Seismological Research Letters (68) 675-688
The earthquake hazard has been evaluated for a 150-square-kilometer area around Evansville, Indiana. GIS-QUAKE, a system that combines liquefaction and ground motion analysis routines with site-specific geological, geotechnical, and seismological information, was used for the analysis. The hazard potential was determined by using 586 SPT borings, 27 CPT sounding, 39...
Boundary separating the seismically active reelfoot rift from the sparsely seismic Rough Creek graben, Kentucky and Illinois
R. L. Wheeler
1997, Seismological Research Letters (68) 586-598
The Reelfoot rift is the most active of six Iapetan rifts and grabens in central and eastern North America. In contrast, the Rough Creek graben is one of the least active, being seismically indistinguishable from the central craton of North America. Yet the rift and graben adjoin. Hazard assessment in...
Geomorphic response to tectonically-induced ground deformation in the Wabash Valley
G.S. Fraser, T.A. Thompson, G.A. Olyphant, L. Furer, S.W. Bennett
1997, Seismological Research Letters (68) 662-674
Numerous low- to moderate-intensity earthquakes have been recorded in a zone of diffuse modern seismicity in southwest Indiana, southeast Illinois, and northernmost Kentucky. Structural elements within the zone include the Wabash Valley Fault System, the LaSalle Anticlinal Belt in western Illinois, and the Rough Creek-Shawneetown Fault System in northern Kentucky....
Proterozoic structure, Cambrian rifting, and younger faulting as revealed by a regional seismic reflection network in the southern Illinois Basin
Christopher J. Potter, James A. Drahovzal, M. L. Sargent, J.H. McBride
1997, Seismological Research Letters (68) 537-552
Four high-quality seismic reflection profiles through the southern Illinois Basin, totaling 245 km in length, provide an excellent regional subsurface stratigraphic and structural framework for evaluation of seismic risk, hydrocarbon occurrence, and other regional geologic studies. These data provide extensive subsurface information on the geometry of the intersection of the...
Seismic interpretation of the deep structure of the Wabash Valley Fault System
G. W. Bear, J.A. Rupp, A.J. Rudman
1997, Seismological Research Letters (68) 624-640
Interpretations of newly available seismic reflection profiles near the center of the Illinois Basin indicate that the Wabash Valley Fault System is rooted in a series of basement-penetrating faults. The fault system is composed predominantly of north-northeast-trending high-angle normal faults. The largest faults in the system bound the 22-km wide...
The U.S. Geological Survey recent highlights; hazards
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 248-96
U.S. Geological Survey Studies of Energy Resources in Sub-Saharan Africa
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 053-97
The U.S. Government and the American public need access to information on energy resources in sub-Saharan Africa.Sub-Saharan Africa (mostly Nigeria) produces 5 percent of the world's oil, while supplying the United States with 15 percent of our imports (Energy Information Administration). In the next 10 years, sub-Saharan oil and gas...
Undiscovered deposits of gold, silver, copper, lead, and zinc in the conterminous United States
Richard B. McCammon
1997, Fact Sheet 189-95
1997 flood tracking chart for the Sheyenne River basin
Gregg J. Wiche, Cathy R. Martin, Luverne L. Albright, Geraldine B. Wald
1997, Open-File Report 97-177
The "1997 Flood Tracking Chart for the Sheyenne River Basin" can be used by local citizens and emergency response personnel to record the latest river stage and predicted flood-crest information. By comparing the current state (water-surface elevation above some datum) and predicted flood crest to the recorded peak stages of...
Riparian cottonwood response to watertable declines
M. L. Scott, Patrick Shafroth, G.T. Auble, E. D. Eggleston
1997, The Green Line, Colorado Riparian Association Newsletter (8) 6-7
No abstract available....
Investigating possible earthquake-related structure beneath the southern Illinois Basin from seismic reflection
J.H. McBride, M. L. Sargent, Christopher J. Potter
1997, Seismological Research Letters (68) 641-649
The relationship between seismicity and faults observed on seismic reflection profiles from the New Madrid Seismic Zone (NMSZ) in the central Mississippi Valley has been intensively studied for the past 15 years. However, comparable studies relating reflector sequences and earthquakes in the southern Illinois Basin, located northeast of the NMSZ,...
Regional streamflow information in Alaska; an investment in the future
T. P. Brabets
1997, Open-File Report 96-630
USGS geochemical studies outline mineral potential and environmental hazards in southeastern Oregon
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 194-95
Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Campbell County Kentucky, to Tazwell County, Virginia
Robert T. Ryder, John E. Repetski, Anita G. Harris
1997, IMAP 2530
No abstract available....
