Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10362
Data on surface-water, streambed-interstitial water, and bed-sediment quality for selected locations in the small arms impact area of central Fort Gordon, Georgia, September 4-6, 2001 Data on surface-water, streambed-interstitial water, and bed-sediment quality for selected locations in the small arms impact area of central Fort Gordon, Georgia, September 4-6, 2001
In September 2001, the U.S. Geological Survey, in cooperation with the Environmental and Natural Resources Management Office of the U.S. Army Signal Center and Fort Gordon (U.S. Department of the Army), conducted a chemical assessment of surface water, streambed-interstitial water, and bed sediments within the small arms impact area of Fort Gordon Military Installation. The study was...
Authors
Sheryln Priest, Timothy C. Stamey, Stephen J. Lawrence
Water-level changes 1977-87, 1987-95, and 1995-2000 in the Chicot and Evangeline Aquifers, Houston-Galveston region, Texas Water-level changes 1977-87, 1987-95, and 1995-2000 in the Chicot and Evangeline Aquifers, Houston-Galveston region, Texas
This report depicts long-term water-level changes in the Chicot and Evangeline aquifers in the Houston-Galveston region. The Houston-Galveston region comprises Harris, Galveston, Fort Bend, Waller, and Montgomery Counties and adjacent parts of Brazoria, Grimes, Walker, San Jacinto, Liberty, and Chambers Counties. The report was prepared in cooperation with the Harris-Galveston Coastal...
Authors
Mark C. Kasmarek, Jennifer Lanning-Rush
Remarks on the current status of the non-marine herpetofauna of Egmont Key, Florida Remarks on the current status of the non-marine herpetofauna of Egmont Key, Florida
No abstract available.
Authors
C. Kenneth Dodd, Marian L. Griffey
Community food webs Community food webs
Community food webs describe the feeding relationships, or trophic interactions, between the species of an ecological community. Both the structure and dynamics of such webs are the focus of food web research. The topological structures of empirical food webs from many ecosystems have been published on the basis of field studies and they form the foundation for theory concerning the mean...
Authors
Donald L. DeAngelis
The use of models for a multiscaled ecological monitoring system: Chapter 6 The use of models for a multiscaled ecological monitoring system: Chapter 6
No abstract available
Authors
Donald L. DeAngelis, L.J. Gross, E.J. Comiskey, Wolf M. Mooij, M.P. Nott
Interspecific differences in susceptibility to competition and predation in a species-pair of larval amphibians Interspecific differences in susceptibility to competition and predation in a species-pair of larval amphibians
Fundamental issues in the study of predator-prey interactions include addressing how prey coexist with their predators and, moreover, whether predators promote coexistence among competing prey. We conducted a series of laboratory experiments with a freshwater assemblage consisting of two predators that differed in their foraging modes (a crayfish, Procambarus sp., and the western...
Authors
Susan C. Walls, David G. Taylor, Charlena M. Wilson
Development of the permeability/performance reference compound approach for in situ calibration of semipermeable membrane devices Development of the permeability/performance reference compound approach for in situ calibration of semipermeable membrane devices
Permeability/performance reference compounds (PRCs) are analytically noninterfering organic compounds with moderate to high fugacity from semipermeable membrane devices (SPMDs) that are added to the lipid prior to membrane enclosure. Assuming that isotropic exchange kinetics (IEK) apply and that SPMD-water partition coefficients are known, measurement of PRC dissipation rate constants...
Authors
J.N. Huckins, J. D. Petty, J.A. Lebo, F.V. Almeida, K. Booij, D.A. Alvarez, W.L. Cranor, R.C. Clark, B.B. Mogensen
2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis 2,3,7,8-Tetrachlorodibenzo-p-dioxin Toxicity in the Zebrafish Embryo: Local Circulation Failure in the Dorsal Midbrain Is Associated with Increased Apoptosis
No abstract available.
Authors
Donald E. Tillitt, Diana M. Papoulias
Hazard assessment of selenium to endangered razorback suckers (Xyrauchen texanus) Hazard assessment of selenium to endangered razorback suckers (Xyrauchen texanus)
A hazard assessment was conducted based on information derived from two reproduction studies conducted with endangered razorback suckers (Xyrauchen texanus) at three sites near Grand Junction, CO, USA. Selenium contamination of the upper and lower Colorado River basin has been documented in water, sediment, and biota in studies by US Department of the Interior agencies and academia...
Authors
S. J. Hamilton, K.M. Holley, K.J. Buhl
Organochlorine chemical residues in fish from the Mississippi River basin, 1995 Organochlorine chemical residues in fish from the Mississippi River basin, 1995
Fish were collected in late 1995 from 34 National Contaminant Biomonitoring Program (NCBP) stations and 13 National Water Quality Assessment Program (NAWQA) stations in the Mississippi River basin (MRB) and in late 1996 from a reference site in West Virginia. Four composite samples, each comprising (nominally) 10 adult common carp (Cyprinus carpio) or black bass (Micropterus spp.) of the...
Authors
C. J. Schmitt
Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods Comparison of temporal trends in VOCs as measured with PDB samplers and low-flow sampling methods
Analysis of temporal trends in tetrachloroethylene (PCE) concentration determined by two sample techniques showed that passive diffusion bag (pdb) samplers adequately sample the large variation in PCE concentrations at the site. The slopes of the temporal trends in concentrations were comparable between the two techniques, and the pdb sample concentration generally reflected the...
Authors
P. T. Harte
Groundwater vulnerability: Interactions of chemical and site properties Groundwater vulnerability: Interactions of chemical and site properties
This study brings together extensive, multi-annual groundwater monitoring datasets from the UK and Midwestern US to test the relative importance of site (e.g. land use, soil and aquifer type) and chemical factors (e.g. solubility in water) and between and within year variations in controlling groundwater contamination by pesticides. ANOVA (general linear modelling) was used to test the
Authors
F. Worrall, T. Besien, D.W. Kolpin