Peter S. Murdoch, Michael R. McHale, M. Alisa Mast, David W. Clow
2005, Fact Sheet 2005-3135
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Publication Extents
Not all publications have extents, not all extents are completely accurateN.L. Jones, Stephen G. Monismith, Janet K. Thompson
2005, Interagency Ecological Program Newsletter (18) 7-13
The nutrient-rich, shallow waters of San Francisco Bay support high rates of primary production, limited not by nutrients but by light availability and benthic grazing (Alpine and others 1992; Cloern 1982). Phytoplankton blooms are an important food source for upper trophic levels. Consequently animal populations, such as fish, may suffer...
Claudio Latorre, Julio L. Betancourt, Jason A. Rech, Jay Quade, Camille Holmgren, Christa Placzek, Antonio Maldonado, Mathias Vuille, Kate A. Rylander
Mike Smith, Paul Hesse, editor(s)
2005, Book chapter, 23° S: Archaeology and Environmental History of the Southern Deserts
Of the major subtropical deserts found in the Southern Hemisphere, the Atacama Desert is the driest. Throughout the Quaternary, the most pervasive climatic influence on the desert has been millennial-scale changes in the frequency and seasonality of the scant rainfall, and associated shifts in plant and animal distributions with elevation...
Daniel B. Fagre, Steven W. Running, Robert E. Keane, David L. Peterson
2005, Book chapter, Global change and mountain regions: An overview of current knowledge
Mountain systems are characterized by strong environmental gradients, rugged topography and extreme spatial heterogeneity in ecosystem structure and composition. Consequently, most mountainous areas have relatively high rates of endemism and biodiversity, and function as species refugia in many areas of the world. Mountains have long been recognized as critical entities...
Sheridan K. Haack, Brian P. Neff, Donald O. Rosenberry, Jacqueline F. Savino, Scott C. Lundstrom
2005, Journal of Great Lakes Research (31) 45-63
Historically, the high potentiometric surface of groundwater in the Silurian/Devonian carbonate aquifer in Monroe County, MI resulted in discharge of highly mineralized, SO4-rich groundwater to the Lake Erie shoreline near both Erie State Game Area (ESGA) and Pointe Mouillee State Game Area (PMSGA). Recently, regional groundwater levels near PMSGA have...
James F. Blakey, James E. Biesecker, Herman R. Feltz, Irwin H. Kantrowitz, Loren E. Yong, and others
2005, Report
The mission of the Water Resources Division (WAD) of the U.S. Geological Survey (USGS) is to provide the hydrologic information and understanding needed for the optimum use and management of the Nation·s water resources for the overall benefit of the people of the United States....
K.R.T. Whelan, T. J. Smith III, Donald R. Cahoon, J.C. Lynch, G.H. Anderson
2005, Estuaries (28) 833-843
We measured monthly soil surface elevation change and determined its relationship to groundwater changes at a mangrove forest site along Shark River, Everglades National Park, Florida. We combined the use of an original design, surface elevation table with new rod-surface elevation tables to separately track changes in the mid...
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, W.E. Ensign, J.L. Meyer
2005, Journal of the North American Benthological Society (24) 656-678
Stream biota in urban and suburban settings are thought to be impaired by altered hydrology; however, it is unknown what aspects of the hydrograph alter fish assemblage structure and which fishes are most vulnerable to hydrologic alterations in small streams. We quantified hydrologic variables and fish assemblages in 30 small...
W. Battaglin, L. Hay, G. McCabe, P. Nanjappa, Alisa L. Gallant
2005, Alytes (22) 146-167
Amphibians occupy a range of habitats throughout the world, but species richness is greatest in regions with moist, warm climates. We modeled the statistical relations of anuran and urodele species richness with mean annual climate for the conterminous United States, and compared the strength of these relations at national and...
Evan H. Campbell Grant
2005, Wetlands (25) 480-487
Vernal pool wetlands are at risk of destruction across the northeast United States, due in part to their diminutive size and short hydroperiolds. These characteristics make it difficult to locate vernal pool habitats in the landscape during much of the year, and no efficient method exists for predicting their occurrence....
Evan H. Campbell Grant, Robin E. Jung, Karen C. Rice
2005, American Midland Naturalist (153) 348-356
Stream salamanders are sensitive to acid mine drainage and may be sensitive to acidification and low acid neutralizing capacity (ANC) of a watershed. Streams in Shenandoah National Park, Virginia, are subject to episodic acidification from precipitation events. We surveyed 25 m by 2 m transects located on the stream bank...
John W. Day
2005, Ecological Engineering (24) 253-265
Over the past several thousand years, inputs from the Mississippi River formed the Mississippi delta, an area of about 25,000 km2. Over the past century, however, there has been a high loss of coastal wetlands of about 4800 km2. The main causes of this loss are the...
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart Jr.
John N. Rinne, Robert M. Hughes, Bob Calamusso, editor(s)
2005, Book chapter, Historical Changes in Large River Fish Assemblages of the Americas
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are...
Water Resources Division, U.S. Geological Survey
2005, Fact Sheet 2005-3049
The Elevation Derivatives for National Applications (EDNA) project is a multi-agency effort to develop standard topographically derived layers for use in hydrologic and environmental modeling. The EDNA takes advantage of the seamless and filtered characteristics for the National Elevation Dataset (NED) to create a hydrologically conditioned Digital Elevation Model (DEM)...
Yao Yin, Jim Rogala, John Sullivan, Jason J. Rohweder
2005, Open-File Report 2005-1233
Introduction The ability to predict the distribution of submersed aquatic vegetation in the Upper Mississippi River on the basis of physical or chemical variables is useful to resource managers. Wildlife managers have a keen interest in advanced estimates of food quantity such as American wildcelery (Vallisneria americana) population status to give...
Kari K. Hetcher-Aguila, Todd S. Miller
2005, Scientific Investigations Map 2914
This set of maps and geohydrologic sections depict the geology and hydrology of valley-fill aquifers in the 14-mile reach of the Chenango River valley between the Village of Greene and the area south of Chenango Valley State Park, N.Y. This map report depicts the aquifers; locations of domestic, production, and...
Geoff Plumlee, Heather Lowers, Steve Ludington, Alan Koenig, Paul Briggs
2005, Open-File Report 2005-1442
This report is one in a series presenting results of an interdisciplinary U.S. Geological Survey (USGS) study of ground-water quality in the lower Red River watershed prior to open-pit and underground molybdenite mining at Molycorp's Questa mine. The stretch of the Red River watershed that extends from just upstream of...
Kenneth G. Rice, J. Hardin Waddle, Marquette E. Crockett, Brian M. Jeffrey, Amanda N. Rice, H. Franklin Percival
2005, Open-File Report 2005-1300
Amphibian declines and extinctions have been documented around the world, often in protected natural areas. Concern for this trend has prompted the U.S. Geological Survey and the National Park Service to document all species of amphibians that occur within U.S. National Parks and to search for any signs that amphibians...
Edward H. Moran, Timothy P. Brabets
2005, Scientific Investigations Report 2005-5229
The headwaters of the John River are located near the village ofAnaktuvuk Pass in the central Brooks Range of interior Alaska. With the recent construction of a water-supply system and a wastewater-treatment plant, most homes in Anaktuvuk Pass now have modern water and wastewater systems. The effluent from the treatment plant discharges into a...
Jose M. Rodriguez
2005, Scientific Investigations Map 2910
Martha G. Nielsen, Glenn R. Guntenspergen, Hilary A. Neckles
2005, Scientific Investigations Report 2005-5244
A wetland classification system was designed for Mt. Desert Island, Maine, to help categorize the large number of wetlands (over 1,200 mapped units) as an aid to understanding their hydrologic functions. The classification system, developed by the U.S. Geological Survey (USGS), in cooperation with the National Park Service, uses a...
Arlen W. Harbaugh
2005, Techniques and Methods 6-A16
This report presents MODFLOW-2005, which is a new version of the finite-difference ground-water model commonly called MODFLOW. Ground-water flow is simulated using a block-centered finite-difference approach. Layers can be simulated as confined or unconfined. Flow associated with external stresses, such as wells, areal recharge, evapotranspiration, drains, and rivers, also can...
T. L. Weaver, B.P. Neff, J.M. Ellis
2005, Scientific Investigations Report 2005-5237
Lac Vieux Desert is a prominent 6.6 square-mile lake that straddles the Michigan-Wisconsin border and forms the headwaters of the Wisconsin River. For generations, the Lac Vieux Desert Band of Lake Superior Chippewa Indians have used Lac Vieux Desert and the surrounding area for growing and harvesting wild rice,...
Kelly L. Warner, Terri Arnold
2005, Scientific Investigations Report 2005-5223
The glacial aquifer system is the largest principal aquifer in aerial extent and ground-water use for public supply in the United States. A principal aquifer is defined as a regionally extensive aquifer or aquifer system that has the potential to be used as a source of potable water (U.S. Geological...
Kirk P. Smith
2005, Open-File Report 2005-1383