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,...
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...
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...
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...
Geologic map and digital database of the San Bernardino Wash 7.5 minute quadrangle, Riverside County, California
Robert E. Powell, Pamela M. Cossette
2002, Open-File Report 2002-498
The geologic map and digital database of the San Bernardino Wash 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...
Simulation of ground-water flow and evaluation of water-management alternatives in the upper Charles River basin, eastern Massachusetts
Leslie A. DeSimone, Donald A. Walter, John R. Eggleston, Mark T. Nimiroski
2002, Water-Resources Investigations Report 2002-4234
Ground water is the primary source of drinking water for towns in the upper Charles River Basin, an area of 105 square miles in eastern Massachusetts that is undergoing rapid growth. The stratified-glacial aquifers in the basin are high yield, but also are thin, discontinuous, and in close hydraulic connection...
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...
Age and tectonic significance of volcanic rocks in the northern Los Angeles Basin, California
Thane H. McCulloh, Robert J. Fleck, Rodger E. Denison, Larry A. Beyer, Richard G. Stanley
2002, Professional Paper 1669
Volcanic rocks, mostly basalts and some andesites, are interbedded with middle Miocene strata and are overlain by younger rocks throughout the greater part of the Los Angeles Basin, California. Roughly correlative flows, previously dated radiometrically (or paleontologically) at about 16.4 to 10.7 Ma, crop out in five separate regions around...
The effects of atmospheric nitrogen deposition in the Rocky Mountains of Colorado and southern Wyoming— A synthesis and critical assessment of published results
Douglas A. Burns
2002, Water-Resources Investigations Report 2002-4066
The Rocky Mountain region of Colorado and southern Wyoming receives as much as 7 kilograms per hectare per year ((kg/ha)/yr) of atmospheric nitrogen (N) deposition, an amount that may have caused changes in aquatic and terrestrial life in otherwise pristine ecosystems. The Rocky Mountain National Park, in its role of...
Geologic map of the Dillon quadrangle, Summit and Grand Counties, Colorado
Karl S. Kellogg
2002, Miscellaneous Field Studies Map 2390
New 1:24,000-scale geologic mapping along the Interstate-70 urban corridor in western Colorado, in support of the USGS Central Region State/USGS Cooperative Geologic Mapping Project, is contributing to a more complete understanding of the stratigraphy, structure, tectonic evolution, and hazard potential of this rapidly developing region. The 1:24,000-scale Dillon quadrangle...
Water-table and potentiometric-surface altitudes of the upper glacial, Magothy, and Lloyd aquifers on Long Island, New York, in March-April 2000, with a summary of hydrogeologic conditions
Ronald Busciolano
2002, Water-Resources Investigations Report 2001-4165
The three main water-bearing units on Long Island, New York--the upper glacial aquifer (water table) and the underlying Magothy and Lloyd aquifers--are the sole source of water supply for more than 3 million people. Water-table and potentiometric-surface altitudes were contoured from water-level measurements made at 394 observation, public-supply, and industrial-supply...
Sulfur dioxide emission rates from Kīlauea Volcano, Hawai‘i, an update: 1998-2001
Tamar Elias, A. Jefferson Sutton
2002, Open-File Report 2002-460
Introduction Sulfur dioxide (SO2) emission rates from Kilauea Volcano were first measured by Stoiber and Malone (1975) and have been measured on a regular basis since 1979 (Greenland and others, 1985; Casadevall and others, 1987; Elias and others, 1998; Sutton and others, 2001). A compilation of SO2 emission-rate and wind-vector...
Palynological dating of some Upper Cretaceous to Eocene outcrop and well samples from the region extending from the easternmost part of the National Petroleum Reserve in Alaska to the western part of the Arctic National Wildlife Refuge, North Slope of Alaska
Norman O. Frederiksen, David J. McIntyre, Thomas P. Sheehan
2002, Open-File Report 2002-405
No abstract available....
Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97
Andrew G. Reif
2002, Fact Sheet 118-02
In 1970, the Chester County Water Resources Authority (Pennsylvania) and the U.S. Geological Survey (USGS) established a long-term water-quality network with the goal of assessing the quality of streams in the county and understanding stream changes in response to urbanization using benthic-macroinvertebrate data. This database represents one of the longest...
Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data
David L. Daniels, Stephen L. Snyder
2002, Open-File Report 2002-493
No abstract available....
Distribution and mass loss of volatile organic compounds in the surficial aquifer at sites FT03, LF13, and WP14/LF15, Dover Air Force Base, Delaware, November 2000–February 2001
Jeffrey R. Barbaro, Pradumna P. Neupane
2002, Water-Resources Investigations Report 2002-4121
Ground-water and surface-water sampling was conducted in the natural attenuation study area in the East Management Unit of Dover Air Force Base, Delaware to determine the distributions of volatile organic compounds in the vicinity of four sites?Fire Training Area Three, the Rubble Area Landfill, the Receiver Station Landfill, and the...
Historical trend in ice thickness on the Piscataquis River in central Maine.
Thomas G. Huntington, Robert W. Dudley, Glenn A. Hodgkins
2002, Conference Paper, Proceedings of the 59th Eastern Snow Conference, June 5-7, 2002, Stowe, VT
We analyzed a long-term record of ice thickness on the Piscataquis River in central Maine to determine whether there were temporal trends that were associated with climate warming. Trends in ice thickness were compared and correlated with regional time series of winter air temperature, heating degree days (HDD) , date of river ice-out,...
Preliminary report on mercury geochemistry of placer gold dredge tailings, sediments, bedrock, and waters in the Clear Creek restoration area, Shasta County, California
Roger P. Ashley, James J. Rytuba, Ronald Rogers, Boris B. Kotlyar, David Lawler
2002, Open-File Report 2002-401
Clear Creek, one of the major tributaries of the upper Sacramento River, drains the eastern Trinity Mountains. Alluvial plain and terrace gravels of lower Clear Creek, at the northwest edge of the Sacramento Valley, contain placer gold that has been mined since the Gold Rush by various methods including dredging....
Characterization of hydraulic conductivity of the alluvium and basin fill, Pinal Creek Basin near Globe, Arizona
Cory E. Angeroth
2002, Water-Resources Investigations Report 2002-4205
Acidic waters containing elevated concentrations of dissolved metals have contaminated the regional aquifer in the Pinal Creek Basin, which is in Gila County, Arizona, about 100 kilometers east of Phoenix. The aquifer is made up of two geologic units: unconsolidated stream alluvium and consolidated basin fill. To better understand how...
Digital data grids for the magnetic anomaly map of North America
Viki Bankey, Alejandro Cuevas, David Daniels, Carol A. Finn, Israel Hernandez, Patricia Hill, Robert Kucks, Warner Miles, Mark Pilkington, Carter Roberts, Walter Roest, Victoria Rystrom, Sarah Shearer, Stephen Snyder, Ronald E. Sweeney, Julio Velez, J. D. Phillips, D.K.A. Ravat
2002, Open-File Report 2002-414
The digital magnetic anomaly database and map for the North American continent is the result of a joint effort by the Geological Survey of Canada (GSC), U. S. Geological Survey (USGS), and Consejo de Recursos Minerales of Mexico (CRM). This integrated, readily accessible, modern digital database of magnetic anomaly data...
Petroleum geology and total petroleum systems of the Widyan Basin and Interior Platform of Saudi Arabia and Iraq
James E. Fox, Thomas S. Ahlbrandt
2002, Bulletin 2202-E
Two total petroleum systems are associated with the Widyan Basin - Interior Platform Province in northern Saudi Arabia and western Iraq. In the Paleozoic Qusaiba/Akkas/Abba/ Mudawwara Total Petroleum System, which consists of one assessment unit - the Horst/Graben-Related Oil and Gas Assessment Unit - high-gravity, low-sulfur crude oil, as well...
Gravity map and data of the eastern half of the Big Bear Lake, 100,000 scale quadrangle, California and analysis of the depths of several basins
Carter Roberts, Robert Jachens, Allan Katzenstein, Gregory Smith, Russell Johnson
2002, Open-File Report 2002-353
Gravity surveys are useful tools for helping to understand the 3-dimensional geology of an area. Many gravity measurements were made in the 1960s and 1970s by various groups in order to produce gravity maps covering California at a scale of 1:250,000 for the California Division of Mines and Geology. (For...
