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Geologic and hydrogeologic information for a geodatabase for the Brazos River Alluvium Aquifer, Bosque County to Fort Bend County, Texas
Sachin D. Shah, Natalie A. Houston
2007, Open-File Report 2007-1031
During July-October 2006, the U.S. Geological Survey (USGS), in cooperation with the Texas Water Development Board (TWDB), developed geologic and hydrogeologic information for a geodatabase for use in development of a Groundwater Availability Model (GAM) of the Brazos River alluvium aquifer along the Brazos River from Bosque County to Fort...
Stratigraphy, structure, and geologic and coastal hazards in the Penuelas to Salinas area, southern Puerto Rico: A compendium of published literature
Jesús Rodríguez-Martínez
2007, Open-File Report 2007-1259
The Puerto Rico Electrical Power Authority has proposed construction of a pipeline to convey natural gas from the municipio of Peñuelas to the Aguirre thermoelectric power plant in the municipio of Salinas in southern Puerto Rico. To ensure that the geologic conditions along the possible routes do not represent...
Development of an Impervious-Surface Database for the Little Blackwater River Watershed, Dorchester County, Maryland
Lesley E. Milheim, John W. Jones, Roger A. Barlow
2007, Open-File Report 2007-1308
Many agricultural and forested areas in proximity to National Wildlife Refuges (NWR) are under increasing economic pressure for commercial or residential development. The upper portion of the Little Blackwater River watershed - a 27 square mile area within largely low-lying Dorchester County, Maryland, on the eastern shore of the Chesapeake...
Development of a Land Use Database for the Little Blackwater Watershed, Dorchester County, Maryland
Lesley E. Milheim, John W. Jones, Roger A. Barlow
2007, Open-File Report 2007-1309
Many agricultural and forested areas in proximity to National Wildlife Refuges (NWR) are under increasing economic pressure to develop lands for commercial or residential development. The upper portion of the Little Blackwater River watershed - a 27 square mile area within largely low-lying Dorchester County, Maryland, on the eastern shore...
Size of the California Brown Pelican Metapopulation During a Non-El Nino Year
Daniel W. Anderson, Charles J. Henny, Carlos Godinez-Reyes, Franklin Gress, Eduardo L. Palacios, Karina Santos del Prado, James Bredy
2007, Open-File Report 2007-1299
Overall, we estimated a total metapopulation within the geographical range of the California brown pelican subspecies (Pelecanus occidentalis californicus) as about 70,680 ? 2,640 breeding pairs (mean ? SD). Little change in at least three decades is indicated in the total metapopulation south of the Southern California Bight (SCB) subpopulation,...
Population size and trends for nesting ospreys in northwestern Mexico: Region-wide surveys, 1977, 1992/1993 and 2006
Charles J. Henny, Daniel W. Anderson, Aradit Castellanos Vera, Jean-Luc E. Carton
2007, Open-File Report 2007-1298
We used a double-sampling technique (air plus ground survey) in 2006, with partial double coverage, to estimate the present size of the osprey (Pandion haliaetus) nesting population in northwestern Mexico. With the exception of Natividad, Cedros, and San Benito Islands along the Pacific Coast of Baja California, all three excluded...
Bathymetry, substrate and circulation in Westcott Bay, San Juan Islands, Washington
Eric E. Grossman, Andrew W. Stevens, Chris Curran, Collin D. Smith, Andrew Schwartz
2007, Open-File Report 2007-1305
Nearshore bathymetry, substrate type, and circulation patterns in Westcott Bay, San Juan Islands, Washington, were mapped using two acoustic sonar systems, video and direct sampling of seafloor sediments. The goal of the project was to characterize nearshore habitat and conditions influencing eelgrass (Z. marina) where extensive loss has occurred since...
Gravity Data from Newark Valley, White Pine County, Nevada
Edward A. Mankinen, Edwin H. McKee
2007, Open-File Report 2007-1306
The Newark Valley area, eastern Nevada is one of thirteen major ground-water basins investigated by the BARCAS (Basin and Range Carbonate Aquifer Study) Project. Gravity data are being used to help characterize the geophysical framework of the region. Although gravity coverage was extensive over parts of the BARCAS study area,...
A human-dimensions review of human-wildlife disturbance: A literature review of impacts, frameworks, and management solutions
Robert Cline, Natalie Sexton, Susan C. Stewart
2007, Open-File Report 2007-1111
The following report was prepared for the U.S. Fish and Wildlife Service National Refuge System in support of their Comprehensive Conservation Planning (CCP) efforts by the Policy Analysis and Science Assistance Branch (PASA), Fort Collins Science Center, U.S. Geological Survey. While this document provides a summary of contemporary recreation management...