Effects of management practices on grassland birds: Golden eagle
John P. DeLong
2004, Report, Effects of management practices on grassland birds
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to the breeding, year-round, and nonbreeding ranges in the United States and southern Canada. Although birds frequently are observed outside...
Photographic sampling of elusive mammals in tropical forests
K. U. Karanth, J.D. Nichols, S. Kumar
William L. Thompson, editor(s)
2004, Book chapter, Sampling rare or elusive species : concepts, designs, and techniques for estimating population parameters
Indexes as surrogates to abundance for low-abundance species
P.B. Conn, L.L. Bailey, J.R. Sauer
William L. Thompson, editor(s)
2004, Book chapter, Sampling rare or elusive species : concepts, designs, and techniques for estimating population parameters
Occupancy estimation and modeling for rare and elusive populations
D.I. MacKenzie, J. Andrew Royle, J.A. Brown, J.D. Nichols
William L. Thompson, editor(s)
2004, Book chapter, Sampling rare or elusive species : concepts, designs, and techniques for estimating population parameters
Map showing susceptibility to rainfall-triggered landslides in the municipality of Ponce, Puerto Rico
Matthew C. Larsen, Marilyn Santiago, Randall W. Jibson, Eduardo Questell
2004, Scientific Investigations Map 2818
The risk of landslides during intense or prolonged rainfall is high in steeply sloping areas such as the municipality of Ponce, where 56 percent of the 301-square-kilometer municipality has slopes 10 degrees or greater. These are areas where the possibility of landsliding increases when triggering conditions such as heavy rainfall...
Tree-regeneration and mortality patterns and hydrologic change in a forested karst wetland--Sinking Pond, Arnold Air Force Base, Tennessee
William J. Wolfe, Jonathan P. Evans, Sarah McCarthy, W. Scott Gain, Bradley A. Bryan
2004, Water-Resources Investigations Report 2003-4217
Multiple lines of evidence point to climate change as the driving factor suppressing tree regeneration since 1970 in Sinking Pond, a 35-hectare seasonally flooded karst depression located on Arnold Air Force Base near Manchester, Tennessee. Annual censuses of 162-193 seedling plots from 1997 through 2001 demonstrate that the critical stage...
Is the extraction of thorium onto MnO2-coated filter cartridges uniform?
Peter W. Swarzenski, M. Baskaran
2004, Open-File Report 2004-1421
Large-volume (i.e., 102 - 103 L) seawater samples are traditionally required to study the partitioning of particle-reactive radionuclides between solution and size-fractionated particulate matter. One of the most frequently used methods to preconcentrate the short-lived isotopes of Th (234Th and 228Th) from such large volumes of water involves the effective...
Pesticide compounds in streamwater in the Delaware River Basin, December 1998-August 2001
R. Edward Hickman
2004, Scientific Investigations Report 2004-5105
During 1998-2001, 533 samples of streamwater at 94 sites were collected in the Delaware River Basin in Pennsylvania, New Jersey, New York, and Delaware as part of the U.S. Geological Survey National Water-Quality Assessment Program. Of these samples, 531 samples were analyzed for dissolved concentrations of 47 pesticide compounds...
Changing Salinity Patterns in Biscayne Bay, Florida
Water Resources Division, U.S. Geological Survey
2004, Fact Sheet 2004-3108
Biscayne Bay, Fla., is a 428-square-mile (1,109-square-kilometer) subtropical estuarine ecosystem that includes Biscayne National Park, the largest marine park in the U.S. national park system (fig. 1). The bay began forming between 5,000 and 3,000 years ago as sea level rose and southern Florida was flooded. Throughout most of its...
Effects of highway deicing chemicals on shallow unconsolidated aquifers in Ohio — Final report
Allison E. Kunze, Bernard N. Sroka
2004, Scientific Investigations Report 2004-5150
As a result of concerns about salt intrusion into drinking water aquifers, the effects of highway deicing chemicals on shallow aquifers were studied at eight locations in Ohio from 1988 through 2002. The study was done by the U.S. Geological Survey, in cooperation with the Ohio Department of Transportation and...
Integrated monitoring of hydrogeomorphic, vegetative, and edaphic conditions in riparian ecosystems of Great Basin National Park, Nevada
Erik A. Beever, D.A. Pyke
2004, Scientific Investigations Report 2004-5185
In semiarid regions such as the Great Basin, riparian areas function as oases of cooler and more stable microclimates, greater relative humidity, greater structural complexity, and a steady flow of water and nutrients relative to upland areas. These qualities make riparian areaʼs attractive not only to resident and migratory wildlife,...
Effects of flow modification on a cattail wetland at the mouth of Irondequoit Creek near Rochester, New York: Water levels, wetland biota, sediment, and water quality
William F. Coon
2004, Water-Resources Investigations Report 2003-4224
An 11-year (1990-2001) study of the Ellison Park wetland, a 423-acre, predominantly cattail (Typha glauca) wetland at the mouth of Irondequoit Creek, was conducted to document the effects that flow modifications, including installation of a flow-control structure (FCS) in 1997 and increased diversion of stormflows to the backwater areas of...
Status assessment and conservation plan for the yellow-billed loon (Gavia adamsii)
Susan L. Earnst
2004, Scientific Investigations Report 2004-5258
Because of its restricted range, small population size, specific habitat requirements, and perceived threats to its breeding habitat, the Yellow-billed Loon (Gavia adamsii) is a species of conservation concern to the U.S. Fish and Wildlife Service and the subject of a petition for listing under the Endangered Species Act. This...
Determining sources of water and contaminants to wells in a carbonate aquifer near Martinsburg, Blair County, Pennsylvania, by use of geochemical indicators, analysis of anthropogenic contaminants, and simulation of ground-water flow
Bruce D. Lindsey, Michele L. Koch
2004, Scientific Investigations Report 2004-5124
Water supply for the Borough of Martinsburg, Pa., is from two well fields (Wineland and Hershberger) completed in carbonate-bedrock aquifers in the Morrison Cove Valley. Water supply is plentiful; however, waters with high concentrations of nitrate are a concern. This report describes the sources of water and contaminants to the...
Assessing the susceptibility to contamination of two aquifer systems used for public water supply in the Modesto and Fresno metropolitan areas, California, 2001 and 2002
Michael T. Wright, Kenneth Belitz, Tyler D. Johnson
2004, Scientific Investigations Report 2004-5149
Ground-water samples were collected from 90 active public supply wells in the Fresno and Modesto metropolitan areas as part of the California Aquifer Susceptibility (CAS) program. The CAS program was formed to examine the susceptibility to contamination of aquifers that are tapped by public supply wells to serve the citizens...
Surface-Water, Water-Quality, and Ground-Water Assessment of the Municipio of Mayaguez, Puerto Rico, 1999-2002
Jesús Rodríguez-Martínez, Luis Santiago-Rivera, Senen Guzman-Rios, Fernando Gómez-Gómez, Mario L. Oliveras-Feliciano
2004, Water-Resources Investigations Report 2003-4317
The surface-water assessment portion of this study focused on analysis of low-flow characteristics in local streams and rivers, because the supply of safe drinking water was a critical issue during recent dry periods. Low-flow characteristics were evaluated at one continuous-record gaging station based on graphical curve-fitting techniques and log-Pearson Type...
An Inventory of Aquatic Macroinvertebrates and Calculation of Selected Biotic Indices for the U.S. Army Atterbury Reserve Forces Training Area near Edinburgh, Indiana, September 2000 - August 2002
Bret A. Robinson
2004, Scientific Investigations Report 2004-5010
An investigation was conducted to establish an inventory of aquatic macroinvertebrates in the streams at the U.S. Army Atterbury Reserve Forces Training Area near Edinburgh, Indiana. The data used to develop this inventory were collected during two sampling efforts in September 2000 and July and August 2002. The inventory identified...
Linking metal bioaccumulation of aquatic insects to their distribution patterns in a mining-impacted river
Daniel J. Cain, Samuel N. Luoma, W.G. Wallace
2004, Environmental Toxicology and Chemistry (23) 1463-1473
Although the differential responses of stream taxa to metal exposure have been exploited for bioassessment and monitoring, the mechanisms affecting these responses are not well understood. In this study, the subcellular partitioning of metals in operationally defined metal-sensitive and detoxified fractions were analyzed in five insect taxa. Samples were collected...
A priori evaluation of two-stage cluster sampling for accuracy assessment of large-area land-cover maps
J.D. Wickham, S.V. Stehman, J.H. Smith, T.G. Wade, L. Yang
2004, International Journal of Remote Sensing (25) 125-1252
Two-stage cluster sampling reduces the cost of collecting accuracy assessment reference data by constraining sample elements to fall within a limited number of geographic domains (clusters). However, because classification error is typically positively spatially correlated, within-cluster correlation may reduce the precision of the accuracy estimates. The detailed population information to...
The characteristics and interpretability of land surface change and implications for project design
Terry L. Sohl, Alisa L. Gallant, Thomas R. Loveland
2004, Photogrammetric Engineering and Remote Sensing (70) 439-448
The need for comprehensive, accurate information on land-cover change has never been greater. While remotely sensed imagery affords the opportunity to provide information on land-cover change over large geographic expanses at a relatively low cost, the characteristics of land-surface change bring into question the suitability of many commonly used methodologies....
Mineral dissolution in the Cape Cod aquifer, Massachusetts, USA: I . Reaction stoichiometry and impact of accessory feldspar and glauconite on strontium isotopes, solute concentrations, and REY distribution
Michael Bau, Brian Alexander, John T. Chesley, Peter Dulski, Susan L. Brantley
2004, Geochimica et Cosmochimica Acta (68) 1199-1216
To compare relative reaction rates of mineral dissolution in a mineralogically simple groundwater aquifer, we studied the controls on solute concentrations, Sr isotopes, and rare earth element and yttrium (REY) systematics in the Cape Cod aquifer. This aquifer comprises mostly carbonate-free Pleistocene sediments that are about 90% quartz with minor...
A Floristic Quality Assessment system for the coastal prairie of Louisiana
Larry K. Allain, Latimore Smith, Charles Allen, Malcolm Vidrine, James B. Grace
2004, Conference Paper, Proceedings of the 19th North American prairie conference: The conservation legacy lives on
Evaluation systems to assess the biotic integrity of plant communities exist for some ecosystems, but not the increasingly rare coastal prairies of Louisiana. A list of plant species occurring in Louisiana's coastal prairie was created and coefficients of conservatism (C) were assigned for each species. A Floristic...
Chapter 14 Rex Chert member of the Permian Phosphoria Formation: Composition, with emphasis on elements of environmental concern
James R. Hein, B.R. McIntyre, R.B. Perkins, David Z. Piper, J. G. Evans
2004, Book chapter, Handbook of exploration and environmental geochemistry
We present bulk chemical and mineralogical compositions, as well as petrographic and outcrop descriptions, of rocks collected from three measured outcrop sections of the Rex Chert Member of the Phosphoria Formation in southeast Idaho. The three measured sections were chosen from 10 outcrops of Rex Chert that were described...
Chapter 21 Western phosphate field - Depositional and economic deposit models
Phillip R. Moyle, David Z. Piper
2004, Handbook of Exploration and Environmental Geochemistry (8) 575-598
The Western Phosphate Field (WPF), composed of Permian marine sedimentary strata that cover over 300,000 km2 in the middle Rocky Mountains of Idaho, Montana, Utah, and Wyoming in the United States, contains vast resources of phosphate mined for fertilizer and a range of other industrial applications. The richest deposits of...
Effects of management practices on grassland birds: Prairie Falcon
John P. DeLong, Karen Steenhof
2004, Report
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the breeding, year-round, and nonbreeding ranges in the United States and southern Canada. Although birds frequently are observed...
