Impact damage to dinocysts from the Late Eocene Chesapeake Bay event
Lucy E. Edwards, David S. Powars
2003, Palaios (18) 275-285
The Chesapeake Bay impact structure, formed by a comet or meteorite that struck the Virginia continental shelf about 35.5 million years ago, is the focus of an extensive coring project by the U.S. Geological Survey and its cooperators. Organic-walled dinocysts recovered from impact-generated deposits in a deep core inside the...
Gravity and magnetic expression of the San Leandro gabbro with implications for the geometry and evolution of the Hayward Fault zone, northern California
D. A. Ponce, T.G. Hildenbrand, R.C. Jachens
2003, Bulletin of the Seismological Society of America (93) 14-26
The Hayward Fault, one of the most hazardous faults in northern California, trends north-northwest and extends for about 90 km along the eastern San Francisco Bay region. At numerous locations along its length, distinct and elongate gravity and magnetic anomalies correlate with mapped mafic and ultramafic rocks. The most prominent...
Comprehensive water quality of the Boulder Creek Watershed, Colorado, during high-flow and low-flow conditions, 2000
Sheila F. Murphy, Philip L. Verplanck, Larry B. Barber, editor(s)
2003, Water-Resources Investigations Report 03-4045
Executive SummaryThe Boulder Creek Watershed, Colorado, is 1160 square kilometers in area and ranges in elevation from 1480 to 4120 meters above sea level. Streamflow originates primarily as snowmelt near the Continental Divide, and thus discharge varies seasonally and annually (Chapter 1). Most of the water in Boulder Creek is...
Analysis of tests of subsurface injection, storage, and recovery of freshwater in Lancaster, Antelope Valley, California
Steven P. Phillips, Carl S. Carlson, Loren F. Metzger, James F. Howle, Devin L. Galloway, Michelle Sneed, Marti E. Ikehara, Kenneth W. Hudnut, Nancy E. King
2003, Water-Resources Investigations Report 2003-4061
Ground-water levels in Lancaster, California, declined more than 200 feet during the 20th century, resulting in reduced ground-water supplies and more than 6 feet of land subsidence. Facing continuing population growth, water managers are seeking solutions to these problems. Injection of imported, treated fresh water into the aquifer system when...
Delta revival: Restoring a California ecosystem
Water Resources Division, U.S. Geological Survey, California Bay Delta Authority
2003, Open-File Report 2003-358
'Delta Revival: Restoring a California Ecosystem' shows scientists from many disciplines working together to guide the unprecendented restoration of the Sacramento- San Joaquin Delta east of San Francisco Bay....
Water Resources Data New York Water Year 2002, Volume 1. Eastern New York Excluding Long Island
G.K. Butch, P.M. Murray, G.J. Hebert, J. F. Weigel
2003, Water Data Report NY-02-1
Water resources data for the 2002 water year for New York consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and ground-water levels. This volume contains records for water discharge at 147 gaging stations; stage only at 8 gaging...
Simulations of Flooding on Pea River and Whitewater Creek in the Vicinity of the Proposed Elba Bypass at Elba, Alabama
T. Scott Hedgecock
2003, Water-Resources Investigations Report 2002-4258
A two-dimensional finite-element surface-water model was used to study the effects of proposed modifications to the State Highway 203 corridor (proposed Elba Bypass/relocated U.S. Highway 84) on water-surface elevations and flow distributions during flooding in the Pea River and Whitewater Creek Basins at Elba, Coffee County, Alabama. Flooding was first...
Nutrient, trace-element, and ecological history of Musky Bay, Lac Courte Oreilles, Wisconsin, as inferred from sediment cores
Faith A. Fitzpatrick, Paul J. Garrison, Sharon A. Fitzgerald, John F. Elder
2003, Water-Resources Investigations Report 2002-4225
Sediment cores were collected from Musky Bay, Lac Courte Oreilles, and from surrounding areas in 1999 and 2001 to determine whether the water quality of Musky Bay has declined during the last 100 years or more as a result of human activity, specifically cottage development and cranberry farming. Selected cores...
Simulation of the shallow aquifer in the vicinity of Silver Lake, Washington County, Wisconsin, using analytic elements
C. P. Dunning, Judith Coffman Thomas, Yu-Feng Lin
2003, Water-Resources Investigations Report 2002-4204
Shallow ground-water flow in the vicinity of Silver Lake, Washington County, Wisconsin, was investigated to develop an understanding of the hydrology of the shallow aquifer, define a water balance for the lake, delineate ground-water recharge areas for the lake, and to estimate solute flux toward the lake. A single-layer, steady-state,...
Bathymetry and acoustic backscatter of the mid and outer continental shelf, head of De Soto Canyon, northeastern Gulf of Mexico: data, images, and GIS
James V. Gardner, John E. Hughes Clarke, Larry A. Mayer, Peter Dartnell
2003, Open-File Report 2003-7
The mid to outer continental shelf off Mississippi-Alabama and off northwest Florida were the focus of U.S. Geological Survey (USGS) multibeam echosounder (MBES) mapping cruises in 2000 and 2001, respectively. These areas were mapped to investigate the extent of "deep-water reefs" first suggested by Ludwig and Walton (1957). The reefs...
Ground-water sampling, analytical results, and water-level measurements at sites FT03, LF13, and WP14/LF15, East Management Unit, Dover Air Force Base, Delaware, January-October 2000
Kristen C. Alexander, Jeffrey Ralph Barbaro
2003, Open-File Report 2002-164
The U.S. Geological Survey, in cooperation with the U.S. Air Force, collected ground-water samples and made water-level measurements from January through October 2000 to monitor natural attenuation at four sites in the East Management Unit of Dover Air Force Base in Kent County, Delaware. The information in this report is...
Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation
Sheryl A. Ferguson
2003, Water-Resources Investigations Report 2002-4196
Great Sand Dunes National Monument and Preserve is located on the eastern side of the San Luis Valley in south-central Colorado. The monument covers 60.4 square miles in Saguache and Alamosa Counties and lies at the base of the Sangre de Cristo Mountains, where a unique combination of climate, topography,...
Biomonitoring of Environmental Status and Trends (BEST) Program: Environmental contaminants and their effects on fish in the Mississippi River Basin
Christopher J. Schmitt
2002, Biological Science Report 2002-0004
We collected, examined, and analyzed 1378 fish of 22 species from 47 sites in the Mississippi River basin (MRB) during 1995 and from a reference site in 1996. The sampling sites in the MRB represented National Contaminant Biomonitoring Program (NCBP) stations situated at key points on major rivers and National...
Modeling and measuring snow for assessing climate change impacts in Glacier National Park, Montana
Daniel B. Fagre, David J. Selkowitz, Blase Reardon, Karen Holzer, Lisa McKeon
2002, Conference Paper, Proceedings of International Snow Science Workshop
A 12-year program of global change research at Glacier National Park by the U.S. Geological Survey and numerous collaborators has made progress in quantifying the role of snow as a driver of mountain ecosystem processes. Spatially extensive snow surveys during the annual accumulation/ablation cycle covered two mountain watersheds and approximately...
Effectiveness of Brucella abortus Strain 19 single calfhood vaccination in elk (Cervus elaphus)
Thomas J. Roffe, Lee C. Jones, Kenneth Coffin, Steven J. Sweeney
Beth Williams, Charlotte Quist, editor(s)
2002, Conference Paper
Brucellosis in Greater Yellowstone Area (GYA) bison and elk has been a source of controversy and focus of the Greater Yellowstone Interagency Brucellosis Committee (GYIBC) for years. Brucellosis has been eradicated from cattle in the 3 states of Wyoming, Montana, and Idaho and all three states currently are classified as...
Metal concentrations in zebra mussels and sediments from embayments and riverine environments of eastern Lake Erie, southern Lake Ontario, and the Niagara River
T. P. Lowe, D. D. Day
2002, Archives of Environmental Contamination and Toxicology (43) 301-308
Concentrations of 14 metals were studied in the soft tissues of zebra mussels (Dreissena polymorpha) and sediments from 16 Great Lakes embayments and riverine environments. Samples were collected in 1993 and 1994 during the early and late autumn period when the body mass of mussels is least affected by reproductive...
Temporal variation in bird counts within a Hawaiian rainforest
John C. Simon, T.K. Pratt, Kim E. Berlin, James R. Kowalsky, S.G. Fancy, Jeff S. Hatfield
2002, Condor (104) 469-481
We studied monthly and annual variation in density estimates of nine forest bird species along an elevational gradient in an east Maui rainforest. We conducted monthly variable circular-plot counts for 36 consecutive months along transects running downhill from timberline. Density estimates were compared by month, year, and station...
FrogwatchUSA
Sam Droege
2002, People, Land, and Water (9) 35-35
full text: Frogs and toads are perhaps the most approachable and available of all our wildlife. In many, if not most places, they are abundant. In wetter parts of the East, almost anyone outside on a warm rainy night in spring will hear their dream-like calls, bellows,...
Contrasting determinants of abundance in ancestral and colonized ranges of an invasive brood parasite
D.C. Hahn, R.J. O’Connor
J. Michael Scott, Patricia J. Heglund, Michael L. Morrison, Jonathan B. Haufler, William A. Wall, editor(s)
2002, Book chapter, Predicting Species Occurrences : Issues of Accuracy and Scale
Avian species distributions are typically regarded as constrained by spatially extensive variables such as climate, habitat, spatial patchiness, and microhabitat attributes. We hypothesized that the distribution of a brood parasite depends as strongly on host distribution patterns as on biophysical factors and examined this hypothesis with respect to the...
Geographic variation in cowbird distribution, abundance, and parasitism
M.L. Morrison, D.C. Hahn
T. Luke George, David S. Dobkin, editor(s)
2002, Book chapter, Effects of habitat fragmentation on birds in western landscapes: contrasts with paradigms from the eastern United States: Studies in Avian Biology No. 25
We evaluated geographical patterns in the abundance and distribution of Brown-headed Cowbirds (Molothrus ater), and in the frequency of cowbird parasitism, across North America in relation to habitat fragmentation. We found no distinctive parasitism patterns at the national or even regional scales, but the species is most abundant in...
Mineral and energy resource assessment of the Gallatin National Forest (exclusive of the Absaroka-Beartooth study area), in Gallatin, Madison, Meagher, Park, and Sweet Grass Counties, south-central Montana
Jane M. Hammarstrom, Anna B. Wilson, James E. Elliott, Bradley S. Van Gosen, Robert R. Carlson, Gregory K. Lee, Dolores M. Kulik, John W. M’Gonigle, William J. Perry Jr.
2002, Professional Paper 1654
No abstract available....
Simulation of Ground-Water Flow in the Middle Rio Grande Basin Between Cochiti and San Acacia, New Mexico
Douglas P. McAda, Peggy Barroll
2002, Water-Resources Investigations Report 2002-4200
This report describes a three-dimensional, finite difference, ground-water-flow model of the Santa Fe Group aquifer system within the Middle Rio Grande Basin between Cochiti and San Acacia, New Mexico. The aquifer system is composed of the Santa Fe Group of middle Tertiary to Quaternary age and post-Santa Fe Group valley...
Long-term sand supply to Coachella Valley Fringe-toed Lizard Habitat in the Northern Coachella Valley, California
Peter G. Griffiths, Robert H. Webb, Nicholas Lancaster, Charles A. Kaehler, Scott C. Lundstrom
2002, Water-Resources Investigations Report 2002-4013
The Coachella Valley fringe-toed lizard (Uma inornata) is a federally listed threatened species that inhabits active sand dunes in the vicinity of Palm Springs, California. The Whitewater Floodplain and Willow Hole Reserves provide some of the primary remaining habitat for this species. The sediment-delivery system that creates these active...
Geologic map and digital database of the Pinto Mountain 7.5 minute quadrangle, Riverside County, California
Robert E. Powell
2002, Open-File Report 2002-491
The geologic map and digital database of the Pinto Mountain quadrangle are products of a regional geologic mapping effort undertaken in the eastern Transverse Ranges in and around Joshua Tree National Park. This investigation, part of the Southern California Areal Mapping Project (SCAMP), is conducted in cooperation with the California...
Hydrologic, sediment, and biological data associated with irrigation drainage in the middle Green River basin, Utah and Colorado, water years 1991-2000
Ryan C. Rowland, David V. Allen, Doyle W. Stephens, James W. Yahnke, Nathan L. Darnall, Bruce Waddell
2002, Open-File Report 2002-343
Hydrologic, sediment, and biological data were collected in the middle Green River basin in eastern Utah from 1991 to 2000 in an effort to monitor the effects of irrigation drainage on wetland areas and streams, aid in the development of remediation plans, and evaluate the effectiveness of selenium remediation efforts...
