Reconnaissance geologic map of the Dixonville 7.5' quadrangle, Oregon
Angela S. Jayko, Ray E. Wells, R. W. Givler, J.S. Fenton, M. Sinor
2001, Open-File Report 2001-226
The Dixonville 7.5 minute quadrangle is situated near the edge of two major geologic and tectonic provinces the northernmost Klamath Mountains and the southeastern part of the Oregon Coast Ranges (Figure 1). Rocks of the Klamath Mountains province that lie within the study area include ultramafic, mafic, intermediate and siliceous...
U.S. Geological Survey Activities Related to American Indians and Alaska Natives Fiscal Year 2000
Water Resources Division, U.S. Geological Survey
2000, Report
The U.S. Geological Survey (USGS) is an impartial scientific organization that strives to produce scientific results that are relevant to the people of the United States and their land and resource managers. USGS does not improve the quality of its customers' lives; it provides the informational tools for American Indians,...
Integration of a numerical model and remotely sensed data to study urban/rural land surface climate processes
Limin Yang
2000, Computers & Geosciences (26) 451-468
Simulation of urban/rural land surface climate processes using boundary layer climate models requires accurate input data with regard to surface thermal and radiative properties. The research reported here resulted in development of a procedure to integrate the satellite-derived surface biophysical parameters with a boundary layer climate model for simulating spatial...
Elk, beaver, and the persistence of willows in national parks: comment on Singer et al. (1998).
R.B. Keigley
2000, Wildlife Society Bulletin (28) 448-450
Singer et al. (1998) propose that the decline in populations of beaver (Castor canadensis) in Yellowstone National Park (YNP) has caused willow to be more vulnerable to browsing by clk (Alces alces). I do not believe that their scenario correctly characterizes the relationship between elk and willow in YNP The authors...
Effect of browsing on willow in the Steel Creek grazing allotment
R.B. Keigley, Gil Gale
2000, Report, Statewide browse evaluation project: Report no. 1
The Steel Creek drainage serves as both wildlife range (primarily moose and elk) and as a livestock grazing allotment. For some years there has been concern about the effect of browsing on willows. Dense clusters of twigs have formed at the end of branches; entire stems of some plants have...
Atlantic Flyway review: Piedmont-Coastal Plain, Region IV, Fall 1999
Chandler S. Robbins
2000, North American Bird Bander (25) 60-67
In a slight reorganization, the Mount Nebo station in the mountains of western Maryland near Oakland was moved to Region III (Western Ridge), in exchange for Lakeshore Estates in Leon County, Florida, which we welcome to Region IV. This was the year of the hurricane in Region IV, with the...
Atlantic Flyway review: Piedmont-Coastal Plain, Region IV, Fall 1999: Robbins Nest, Laurel, MD (390-0765)
Chandler S. Robbins
2000, North American Bird Bander (25) 63-63
This is the first of three stations along the Patuxent River. Elevation here at the edge of the Piedmont ranges from 265 ft at the house to 160 ft at the river. In spite of easterly winds and heavily overcast skies from Hurricanes Dennis, Floyd, and Irene, we suffered from...
Atlantic Flyway review: Piedmont-Coastal Plain, Region IV, Fall 1999: Patuxent powerline right-of-way (390-0764)
Deanna K. Dawson
2000, North American Bird Bander (25) 63-63
Fall 1999 was among the poorest seasons in this banding station's 20 years of operation. Record high capture totals were set for only two species: Ruby-throated Hummingbird (41 individuals captured, none banded; previous high 21) and White-breasted Nuthatch (two individuals banded; previous high, one). The only other species that stood...
Breeding season demography and movements of Eastern Towhees at the Savannah River Site, South Carolina
David G. Krementz, Larkin A. Powell
2000, The Wilson Bulletin (112) 243-248
The Eastern Towhee (Pipilo erythrophthalmus) has undergone population declines across much of its range, especially in New England. Despite being a widespread and, at one time, a common species, relatively little is known about its natural history, ecology, or demographics. We conducted baseline research on Eastern Towhees at...
Influence of inner-continental shelf geologic framework on the evolution and behavior of the barrier-island system between Fire Island Inlet and Shinnecock Inlet, Long Island, New York
W. C. Schwab, E.R. Thieler, J.R. Allen, D.S. Foster, B.A. Swift, J. F. Denny
2000, Journal of Coastal Research (16) 408-422
High-resolution, sea-floor mapping techniques, including sidescan-sonar and subbottom profiling, were used to investigate how the geologic framework of the inner-continental shelf influenced the Holocene evolution and modern behavior of the Fire Island barrier-island system, Long Island, New York. The inner-continental shelf off Long Island is divided into two physiographic...
Patterns of colony-site use and disuse in saltmarsh-nesting Common and Roseate terns
P. A. Buckley, F. G. Buckley
2000, Journal of Field Ornithology (71) 356-369
Nearly all previous studies of saltmarsh-nesting Common Terns on the east coast of the United States have concluded that tidal saltmarshes were suboptimal or marginal breeding habitats. Questioning that conclusion, we analyzed patterns of both saltmarsh and nonmarsh colony use (stability, movement, establishment, abandonment, and size) obtained during 5...
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...
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...
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...
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),...
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...
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...
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...
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...
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...
