Water Quality of Streams in and near the Delaware Water Gap National Recreation Area, Pennsylvania and New Jersey, 2002-04
R. Edward Hickman, Jeffrey M. Fischer
2008, Scientific Investigations Report 2007-5290
Water samples were collected during 2002-04 at monitoring stations on 14 streams either within or entering the Delaware Water Gap National Recreation Area. The samples were collected from April through December of each year, mostly under low (base-flow) conditions, and were analyzed for major ions and nutrients (nitrogen and phosphorus)....
Arkansas and Louisiana aeromagnetic and gravity maps and data— A website for distribution of data
Viki Bankey, David L. Daniels
2008, Data Series 352
This report contains digital data, image files, and text files describing data formats for aeromagnetic and gravity data used to compile the State aeromagnetic and gravity maps of Arkansas and Louisiana. The digital files include grids, images, ArcInfo, and Geosoft compatible files. In some of the data folders, ASCII files with...
Hydrodynamic Characteristics and Salinity Patterns in Estero Bay, Lee County, Florida
Michael J. Byrne, Jessica N. Gabaldon
2008, Scientific Investigations Report 2007-5217
Estero Bay is an estuary (about 12 miles long and 3 miles wide) on the southwestern Florida coast, with several inlets connecting the bay to the Gulf of Mexico and numerous freshwater tributaries. Continuous stage and salinity data were recorded at eight gaging stations in Estero Bay estuary from October...
Diel diet composition and feeding activity of round goby in the nearshore region of Lake Ontario
James H. Johnson, James E. McKenna Jr., Christopher C. Nack, Marc A. Chalupnicki
2008, Journal of Freshwater Ecology (23) 607-612
Expansion of the invasive round goby Apollonia melanostoma (=Neogobius melanostomus) throughout the Great Lakes drainage has created considerable concern among fisheries management agencies. These concerns have led to several studies on the biology and impact of the goby in the basin. However, little information exists on diel patterns in food...
Assessment of Water-Quality Monitoring and a Proposed Water-Quality Monitoring Network for the Mosquito Lagoon Basin, East-Central Florida
Sharon E. Kroening
2008, Scientific Investigations Report 2007-5238
Surface- and ground-water quality data from the Mosquito Lagoon Basin were compiled and analyzed to: (1) describe historical and current monitoring in the basin, (2) summarize surface- and ground-water quality conditions with an emphasis on identifying areas that require additional monitoring, and (3) develop a water-quality monitoring network to meet...
Interferometric Sidescan Bathymetry, Sediment and Foraminiferal Analyses; a New Look at Tomales Bay, California
Roberto J. Anima, John L. Chin, David P. Finlayson, Mary McGann, Florence L. Wong
2008, Open-File Report 2008-1237
The United States Geological Survey (USGS) in collaboration with Point Reyes National Sea Shore (PRNS), and the Tomales Bay Watershed Council [http://www.tomalesbaywatershed.org/] has completed a detailed bathymetric survey, and sediment and foraminiferal analyses of the floor of Tomales Bay, California. The study goals are to detail the submarine morphology,...
Savanna tree density, herbivores, and the herbaceous community: Bottom-up vs. top-down effects
Corinna Riginos, James B. Grace
2008, Ecology (89) 2228-2238
Herbivores choose their habitats both to maximize forage intake and to minimize their risk of predation. For African savanna herbivores, the available habitats range in woody cover from open areas with few trees to dense, almost‐closed woodlands. This variation in woody cover or density can have a number of consequences...
Reply to “Comment on ‘Seismomagnetic effects from the long-awaited 28 September 2004 M 6.0 Parkfield earthquake’ by M. J. S. Johnston, Y. Sasai, G. D. Egbert, and R. J. Mueller” by P. Varotsos and S. Uyeda
Malcolm J. S. Johnston, Y. Sasai, G. D. Egbert, S. K. Park
2008, Bulletin of Seismological Society of America (98) 2090-2093
No abstract available....
Protection of mammal diversity in Central America
Clinton N. Jenkins, Chandra Giri
2008, Conservation Biology (22) 1037-1044
Central America is exceptionally rich in biodiversity, but varies widely in the attention its countries devote to conservation. Protected areas, widely considered the cornerstone of conservation, were not always created with the intent of conserving that biodiversity. We assessed how well the protected-area system of Central America includes the region's...
Impacts of forest age on water use in Mountain ash forests
Stephen A. Wood, Jason Beringer, Lindsay B. Hutley, A. David McGuire, Albert Van Dijk, Musa Kilinc
2008, Functional Plant Biology (35) 483-492
NoticeThis publication has been retracted. See the retraction notice....
Faunal impact on vegetation structure and ecosystem function in mangrove forests: A review
Stefano Cannicci, Damien Burrows, Sara Fratini, Thomas J. Smith III, Joachim Offenberg, Farid Dahdouh-Guebas
2008, Aquatic Botany (89) 186-200
The last 20 years witnessed a real paradigm shift concerning the impact of biotic factors on ecosystem functions as well as on vegetation structure of mangrove forests. Before this small scientific revolution took place, structural aspects of mangrove forests were viewed to be the result of abiotic processes acting from...
Conservation genetics and species recovery
Ed Pendleton, Amy G. Vandergast, T.L. King
2008, Endangered Species Bulletin (33) 59
Recent advances in molecular genetics have proven to be extremely useful in efforts to conserve imperiled species. Genetics data are used to identify appropriate units of management (e.g., populations, metapopulations), effective sizes of breeding populations, population mixing rates, and other variables. These data help managers make decisions about which populations...
Homage to Linnaeus: How many parasites? How many hosts?
Andy Dobson, Kevin D. Lafferty, Armand M. Kuris, Ryan F. Hechinger, Walter Jetz
2008, Proceedings of the National Academy of Sciences of the United States of America (105) 11482-11489
Estimates of the total number of species that inhabit the Earth have increased significantly since Linnaeus's initial catalog of 20,000 species. The best recent estimates suggest that there are ≈6 million species. More emphasis has been placed on counts of free-living species than on parasitic species. We rectify this by...
Mammal Inventory of the Mojave Network Parks-Death Valley and Joshua Tree National Parks, Lake Mead National Recreation Area, Manzanar National Historic Site, and Mojave National Preserve
Charles A. Drost, Jan Hart
2008, Open-File Report 2008-1167
This report describes the results of a mammal inventory study of National Park Service units in the Mojave Desert Network, including Death Valley National Park, Joshua Tree National Park, Lake Mead National Recreation Area, Manzanar National Historic Site, and Mojave National Preserve. Fieldwork for the inventory focused on small mammals,...
Using satellite-based rainfall estimates for streamflow modelling: Bagmati Basin
M.S. Shrestha, Guleid A. Artan, S.R. Bajracharya, R. R. Sharma
2008, Journal of Flood Risk Management (1) 89-99
In this study, we have described a hydrologic modelling system that uses satellite-based rainfall estimates and weather forecast data for the Bagmati River Basin of Nepal. The hydrologic model described is the US Geological Survey (USGS) Geospatial Stream Flow Model (GeoSFM). The GeoSFM is a spatially semidistributed, physically based hydrologic...
Monitoring on-orbit stability of Terra MODIS and Landsat 7 ETM+ reflective solar bands using Railroad Valley Playa, Nevada (RVPN) test site
Amit Angal, Taeyoung Choi, Gyanesh Chander, Xiaoxiong Xiong
2008, Conference Paper
The Moderate Resolution Imaging Spectroradiometer (MODIS) Proto-Flight Model (PFM), launched on December 18, 1999, aboard NASA's Earth Observing System (EOS) Terra satellite has 20 reflective solar bands (RSB) with wavelengths ranging from 0.41 to 2.1 mum over a wide field of view (plusmn55deg). The Landsat 7 (L7) Enhanced Thematic Mapper...
Determination of Baseline Periods of Record for Selected Streamflow-Gaging Stations in New Jersey for Determining Ecologically Relevant Hydrologic Indices (ERHI)
Rachel A. Esralew, Ronald J. Baker
2008, Scientific Investigations Report 2008-5077
Hydrologic changes in New Jersey stream basins resulting from human activity can affect the flow and ecology of the streams. To assess future changes in streamflow resulting from human activity an understanding of the natural variability of streamflow is needed. The natural variability can be classified using Ecologically Relevant Hydrologic...
Geologic Map of the Eaton Reservoir Quadrangle, Larimer County, Colorado and Albany County, Wyoming
Jeremiah B. Workman
2008, Scientific Investigations Map 3029
New geologic mapping of the Eaton Reservoir 7.5' quadrangle defines geologic relationships in the northern Front Range along the Colorado/Wyoming border approximately 35 km south of Laramie, Wyo. Previous mapping within the quadrangle was limited to regional reconnaissance mapping (Tweto, 1979; Camp, 1979; Burch, 1983) and some minor site-specific studies...
Comparison of Observed and Predicted Abutment Scour at Selected Bridges in Maine
Pamela J. Lombard, Glenn A. Hodgkins
2008, Scientific Investigations Report 2008-5099
Maximum abutment-scour depths predicted with five different methods were compared to maximum abutment-scour depths observed at 100 abutments at 50 bridge sites in Maine with a median bridge age of 66 years. Prediction methods included the Froehlich/Hire method, the Sturm method, and the Maryland method published in Federal Highway Administration...
Community Survey Results for Rappahannock River Valley National Wildlife Refuge: Completion Report
Natalie R. Sexton, Susan C. Stewart, Lynne Koontz
2008, Open-File Report 2008-1219
This report provides a summary of results for the survey of residents of communities adjacent to Rappahannock River Valley NWR conducted from the spring through the summer in 2006. This research was commissioned by the Northeast Region of the U.S. Fish and Wildlife Service in support of the Rappahannock River...
Assessment of Coal Geology, Resources, and Reserves in the Gillette Coalfield, Powder River Basin, Wyoming
James A. Luppens, David C. Scott, Jon E. Haacke, Lee M. Osmonson, Timothy J. Rohrbacher, Margaret S. Ellis
2008, Open-File Report 2008-1202
The Gillette coalfield, within the Powder River Basin in east-central Wyoming, is the most prolific coalfield in the United States. In 2006, production from the coalfield totaled over 431 million short tons of coal, which represented over 37 percent of the Nation's total yearly production. The Anderson and Canyon coal...
Geologic controls on the growth of petroleum reserves
Neil S. Fishman, Christine E. Turner, Fred Peterson, Thaddeus S. Dyman, Troy Cook
2008, Bulletin 2172-I
The geologic characteristics of selected siliciclastic (largely sandstone) and carbonate (limestone and dolomite) reservoirs in North America (largely the continental United States) were investigated to improve our understanding of the role of geology in the growth of petroleum reserves. Reservoirs studied were deposited in (1) eolian environments (Jurassic Norphlet Formation...
Application of Wind Fetch and Wave Models for Habitat Rehabilitation and Enhancement Projects
Jason J. Rohweder, James T. Rogala, Barry L. Johnson, Dennis Anderson, Steve Clark, Ferris Chamberlin, Kip Runyon
2008, Open-File Report 2008-1200
Models based upon coastal engineering equations have been developed to quantify wind fetch length and several physical wave characteristics including significant height, length, peak period, maximum orbital velocity, and shear stress. These models, developed using Environmental Systems Research Institute's ArcGIS 9.2 Geographic Information System platform, were used to quantify differences...
Estimated Probability of Post-Wildfire Debris-Flow Occurrence and Estimated Volume of Debris Flows from a Pre-Fire Analysis in the Three Lakes Watershed, Grand County, Colorado
Michael R. Stevens, Clifford R. Bossong, David W. Litke, Roland J. Viger, Michael G. Rupert, Stephen J. Char
2008, Scientific Investigations Map 3009
Debris flows pose substantial threats to life, property, infrastructure, and water resources. Post-wildfire debris flows may be of catastrophic proportions compared to debris flows occurring in unburned areas. During 2006, the U.S. Geological Survey (USGS), in cooperation with the Northern Colorado Water Conservancy District, initiated a pre-wildfire study to determine...
Ground-Water Quality in Western New York, 2006
David A.V. Eckhardt, James E. Reddy, Kathryn L. Tamulonis
2008, Open-File Report 2008-1140
Water samples were collected from 7 production wells and 26 private residential wells in western New York from August through December 2006 and analyzed to characterize the chemical quality of ground water. Wells at 15 of the sites were screened in sand and gravel aquifers, and 18 were finished in...
