Mixed-function oxygenases, oxidative stress, and chromosomal damage measured in lesser scaup wintering on the Indiana Harbor Canal
T. W. Custer, Christine M. Custer, R. K. Hines, D. W. Sparks, M. J. Melancon, D. J. Hoffman, J. W. Bickham, J.K. Wickliffe
2000, Archives of Environmental Contamination and Toxicology (38) 522-529
During the winter of 1993-1994, male lesser scaup (Aythya alfinis) were collected on the heavily polluted Indiana Harbor Canal, East Chicago, Indiana, and examined for several bioindicators of chemical exposure. Livers were analyzed for activities of three cytochrome P450-associated monooxygenases and four measures of oxidative stress. Blood and spleen were...
Seasonal distribution of bird populations at the Patuxent Research Refuge
R. E. Stewart, J.B. Cope, C.S. Robbins, J.W. Brainerd
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 257-363
A detailed study of seasonal changes in bird populationswas made at the Patuxent Research Refuge, located between Bowie and Laurel, Maryland during the years 1936-1949. The history of the Refuge is reviewed and its physical and biological characteristlcs summarized.. The methods of study used during the investigation...
Early avian research at the Savannah River Site, South Carolina: historical highlights and possibilities for the future
J.M. Meyers, E.P. Odum
John B.= Dunning Jr., John C. Kilgo, editor(s)
2000, Book chapter, Avian Research as the Savannah River Site: Model for integrating basic research and long-term management
Avian biology and collection of baseline population data was a major part of the first decade (1951-1961) of field research at the Savannah River Site (SRS). Baseline inventories involving organisms and land-use types were part of the mission in the early contracts between the Atomic Energy Commission (now the...
Habitat management for wintering American Woodcock in the southeastern United States
D.G. Krementz
Daniel G. McAuley, John G. Bruggink, Greg F. Sepik, editor(s)
2000, Book chapter, Proceedings of the Ninth American Woodcock Symposium
Although much information has been gathered on American woodcock (Scolopax minor) wintering east of the Lower Mississippi Alluvial Valley, that information has not been compiled into a single source assembled for land managers. The objectives of this paper are to pose a few important questions that should be addressed...
Temporal and geographic patterns in population trends of brown-headed cowbirds
B.G. Peterjohn, J.R. Sauer, S. Schwarz
2000, Book chapter, Ecology and management of cowbirds and their hosts: studies in the conservation of North American passerine birds
The temporal and geographic patterns in the population trends of Brown-headed Cowbirds are summarized from the North American Breeding Bird Survey. During 1966-1992, the survey-wide population declined significantly, a result of declining populations in the Eastern BBS Region, southern Great Plains, and the Pacific coast states. Increasing populations were...
Landscape associations of frog and toad species in Iowa and Wisconsin, U.S.A
M. G. Knutson, J.R. Sauer, D.A. Olsen, M.J. Mossman, L.M. Hemesath, M.J. Lannoo
Hinrich Kaiser, Gary S. Casper, Neil P. Bernstein, editor(s)
2000, Book chapter, Investigating amphibian declines: Proceedings of the 1998 declining amphibians conference
Landscape habitat associations of frogs and toads in Iowa and Wisconsin were tested to determine whether they support or refute previous general habitat classifications. We examined which Midwestern species shared similar habitats to see if these associations were consistent across large geographic areas (states). Rana sylvatica (wood frog),...
A comprehensive monitoring program for North American shorebirds
Marshall Howe, Jon Bart, Stephen Brown, Chris Elphick, Robert E. Gill Jr., Brian A. Harrington, Catherine Hickey, Guy Morrison, Susan K. Skagen, Nils Warnock, editor(s)
2000, Report
Anthropogenic changes to the biosphere, including widespread degradation and losses of habitats and ecosystems, are causing rapid and profound changes to bird and other wildlife populations throughout the world. Such changes have led to increasing risks and rates of extinction. As a consequence, information on how bird populations are changing...
A hiker's guide to the geology of Old Rag Mountain, Shenandoah National Park, Virginia
Paul C. Hackley
2000, Open-File Report 2000-263
No abstract available....
Effects of ground-water withdrawals on the Rock River and associated valley aquifer, eastern Rock County, Minnesota
Richard J. Lindgren, M.K. Landon
2000, Water-Resources Investigations Report 99-4157
A better understanding of the ground-water and surface-water resources of the Rock River Valley in southwestern Minnesota was needed due to concerns surrounding future reliable sources of water for public supply. The Rock River Valley aquifer consists of a surficial sand and gravel unit that underlies the entire Rock River...
Altitude, depth, and thickness of the Galena-Platteville Bedrock Unit in the subcrop area of Illinois and Wisconsin
Timothy A. Brown, Charles P. Dunning, Jennifer B. Sharpe
2000, Water-Resources Investigations Report 97-4054-C
The Galena-Platteville bedrock unit is a carbonate deposit of Ordovician age, composed of the Galena and Platteville Groups in Illinois and the Sinnippee Group in Wisconsin. It is the uppermost bedrock unit (subcrop) in most of northern Illinois and southern and eastern Wisconsin. The subcrop area is shaded in figure...
Ground-water quality in alluvial aquifers in the eastern Iowa basins, Iowa and Minnesota
Eric M. Sadorf, S. Michael Linhart
2000, Water-Resources Investigations Report 2000-4106
The quality of shallow alluvial ground water that is used for domestic supplies in the Wapsipinicon, Cedar, Iowa, and Skunk River Basins (Eastern Iowa Basins) is described. Water samples from 32 domestic-supply wells were collected from June through July 1998. This study of ground-water quality in alluvial aquifers in the...
Recovery of perennial vegetation in military target sites in the eastern Mohave Desert, Arizona
John W. Steiger, Robert H. Webb
2000, Open-File Report 2000-355
The effect of the age of geomorphic surfaces on the recovery of desert vegetation in military target sites was studied in the Mohave and Cerbat Mountains of northwestern Arizona. The target sites were cleared of all vegetation during military exercises in 1942-1943 and have not been subsequently disturbed. The degree...
Preliminary volcano-hazard assessment for the Katmai volcanic cluster, Alaska
Judy Fierstein, Wes Hildreth
2000, Open-File Report 2000-489
The world’s largest volcanic eruption of the 20th century broke out at Novarupta (fig. 1) in June 1912, filling with hot ash what came to be called the Valley of Ten Thousand Smokes and spreading downwind more fallout than all other historical Alaskan eruptions combined. Although almost all the magma...
Distribution of a suite of elements including arsenic and mercury in Alabama coal
Martin B. Goldhaber, R. C. Bigelow, J. R. Hatch, J.C. Pashin
2000, Miscellaneous Field Studies Map 2333
Arsenic and other elements are unusually abundant in Alabama coal. This conclusion is based on chemical analyses of coal in the U.S. Geological Survey's National Coal Resources Data System (NCRDS; Bragg and others, 1994). According to NCRDS data, the average concentration of arsenic in Alabama coal (72 ppm) is three...
Geology and coastal hazards in the northern Monterey Bay, California: Field trip guidebook, November 4, 2000
Cheryl Hapke
2000, Open-File Report 2000-438
The purpose of this field trip is to explore the relationships between local geology, coastal hazards, and human influences in the northern Monterey Bay, which is a tectonically active high wave energy coastal environment. Seacliffs, shore platforms, pocket beaches and a headland/embayment morphology characterize this rocky coastline. Many studies of...
Investigation of the geology and hydrology of the Mogollon Highlands of central Arizona: a project of the Arizona Rural Watershed Initiative
John T.C. Parker, Marilyn E. Flynn
2000, Fact Sheet 159-00
The Mogollon Highlands of east central Arizona is a region of forested plateau and mountains, deep, sheerwalled canyons, and desert valleys. Known for its scenic beauty and characterized by a generally mild climate, the area, though still sparsely populated, attracts an increasing number of tourists and summer residents. Furthermore, the...
Geologic map and digital database of the Apache Canyon 7.5' quadrangle, Ventura and Kern counties, California
Paul Stone, P. M. Cossette
2000, Open-File Report 2000-359
The Apache Canyon 7.5-minute quadrangle is located in southwestern California about 55 km northeast of Santa Barbara and 65 km southwest of Bakersfield. This report presents the results of a geologic mapping investigation of the Apache Canyon quadrangle that was carried out in 1997-1999 as part of the U.S. Geological...
Principal facts for gravity stations in the Antelope Valley-Bedell Flat area, west-central Nevada
Eleanore B. Jewel, David A. Ponce, Robert L. Morin
2000, Open-File Report 2000-506
In April 2000 the U.S. Geological Survey (USGS) established 211 gravity stations in the Antelope Valley and Bedell Flat area of west-central Nevada (see figure 1). The stations were located about 15 miles north of Reno, Nevada, southwest of Dogskin Mountain, and east of Petersen Mountain, concentrated in Antelope Valley...
Concentrations and loads of cadmium, lead, and zinc measured near the peak of the 1999 snowmelt-runoff hydrographs for 42 water-quality stations, Coeur d'Alene River basin, Idaho
Paul F. Woods
2000, Open-File Report 2000-322
The Remedial Investigation/Feasibility Study conducted by the U.S. Environmental Protection Agency within the Spokane River Basin of northern Idaho and eastern Washington included extensive data-collection activities to determine the nature and extent of trace-element contamination within the basin. The U.S. Geological Survey designed and implemented synoptic sampling of the 1999...
Transport of suspended and bedload sediment at eight stations in the Coeur d'Alene River basin, Idaho
Greg M. Clark, Paul F. Woods
2000, Open-File Report 2000-472
The Remedial Investigation/Feasibility Study conducted by the U.S. Environmental Protection Agency within the Spokane River Basin of northern Idaho and eastern Washington included extensive data-collection activities to determine the nature and extent of trace-element contamination within the basin. As part of the investigation, the U.S. Geological Survey designed and implemented...
Nitrate concentrations in ground water in the Henrys Fork Basin, eastern Idaho
D. J. Parliman
2000, Fact Sheet 029-00
In 1998 and 1999, the U.S. Geological Survey (USGS) completed comprehensive studies of nitrate concentrations in ground water in the Henrys Fork Basin in eastern Idaho (fig. 1A). These studies were done in cooperation with the following agencies or groups: Idaho Division of Environmental Quality (DEQ), District 7 Health Department,...
Monthly variability and possible sources of nitrate in ground water beneath mixed agricultural land use, Suwannee and Lafayette Counties, Florida
Brian G. Katz, J.K. Böhlke
2000, Water-Resources Investigations Report 2000-4219
In an area of mixed agricultural land use in Suwannee and Lafayette Counties of northern Florida, water samples were collected monthly from 14 wells tapping the Upper Floridan aquifer during July 1998 through June 1999 to assess hydrologic and land-use factors affecting the variability in nitrate concentrations in ground water....
Hydrogeology, water quality, and stormwater-sediment chemistry of the Grande Wash area, Fort McDowell Indian Reservation, Maricopa County, Arizona
John P. Hoffmann
2000, Water-Resources Investigations Report 2000-4116
Grande Wash is a tributary of the Verde River and drains an area of 13 square miles within the McDowell Mountains and the Town of Fountain Hills in Central Arizona. The wash enters the Fort McDowell Indian Reservation at the eastern boundary of Fountain Hills and is incised in coarse-grained alluvium that is...
Simulation of ground-water flow in an unconfined sand and gravel aquifer at Marathon, Cortland County, New York
Todd S. Miller
2000, Water-Resources Investigations Report 2000-4026
The Village of Marathon, in Cortland County, N.Y., has three municipal wells that tap a relatively thin (25 to 40 feet thick) and narrow (less than 0.25 mile wide) unconfined sand and gravel aquifer in the Tioughnioga River valley. Only one of the wells is in use because water from...
Preliminary report on geophysics of the Verde River headwaters region, Arizona
Victoria E. Langenheim, J. S. Duval, Laurie Wirt, Ed DeWitt
2000, Open-File Report 2000-403
This report summarizes the acquisition, data processing, and preliminary interpretation of a high-resolution aeromagnetic and radiometric survey near the confluence of the Big and Little Chino basins in the headwaters of the Verde River, Arizona. The goal of the aeromagnetic study is to improve understanding of the geologic framework as...
