Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10386
Uncertainty in spatially explicit animal dispersal models Uncertainty in spatially explicit animal dispersal models
Uncertainty in estimates of survival of dispersing animals is a vexing difficulty in conservation biology. The current notion is that this uncertainty decreases the usefulness of spatially explicit population models in particular. We examined this problem by comparing dispersal models of three levels of complexity: (1) an event-based binomial model that considers only the occurrence of...
Authors
Wolf M. Mooij, Donald L. DeAngelis
A longitudinal assessment of the aquatic macroinvertebrate community in the channelized lower Missouri River A longitudinal assessment of the aquatic macroinvertebrate community in the channelized lower Missouri River
We conducted an aquatic macroinvertebrate assessment in the channelized reach of the lower Missouri River, and used statistical analysis of individual metrics and multimetric scores to identify community response patterns and evaluate relative biological condition. We examined longitudinal site differences that are potentially associated with water qualityrelated factors originating from...
Authors
Barry C. Poulton, Mark L. Wildhaber, Collette S. Charbonneau, James F. Fairchild, Brad G. Mueller, Christopher J. Schmitt
Selected hydrogeologic datasets for the Antlers Aquifer, Texas Selected hydrogeologic datasets for the Antlers Aquifer, Texas
No abstract available.
Authors
Natalie A. Houston, C. Amanda Garcia, Eric W. Strom
Selected hydrogeologic datasets for the Glen Rose Aquifer, Texas Selected hydrogeologic datasets for the Glen Rose Aquifer, Texas
No abstract available.
Authors
Natalie A. Houston, C. Amanda Garcia, Eric W. Strom
Selected hydrogeologic datasets for the Woodbine Aquifer, Texas Selected hydrogeologic datasets for the Woodbine Aquifer, Texas
No abstract available.
Authors
Natalie A. Houston, C. Amanda Garcia, Eric W. Strom
Long-term hydrologic monitoring protocol for coastal ecosystems Long-term hydrologic monitoring protocol for coastal ecosystems
No abstract available.
Authors
Timothy D. McCobb, Peter K. Weiskel
Simulation of advective flow under steady-state and transient recharge conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts Simulation of advective flow under steady-state and transient recharge conditions, Camp Edwards, Massachusetts Military Reservation, Cape Cod, Massachusetts
The U.S. Geological Survey has developed several ground-water models in support of an investigation of ground-water contamination being conducted by the Army National Guard Bureau at Camp Edwards, Massachusetts Military Reservation on western Cape Cod, Massachusetts. Regional and subregional steady-state models and regional transient models were used to (1) improve understanding of the...
Authors
Donald A. Walter, John P. Masterson
Selected hydrogeologic datasets for the Twin Mountain-Travis Peak Aquifer, Texas Selected hydrogeologic datasets for the Twin Mountain-Travis Peak Aquifer, Texas
No abstract available.
Authors
Natalie A. Houston, C. Amanda Garcia, Eric W. Strom
Hydrogeology and Ground-Water Quality of Brunswick County, North Carolina Hydrogeology and Ground-Water Quality of Brunswick County, North Carolina
Brunswick County is the southernmost coastal county in North Carolina and lies in the southeastern part of the Coastal Plain physiographic province. In this report, geologic, hydrologic, and chemical data were used to investigate and delineate the hydrogeologic framework and ground-water quality of Brunswick County. The major aquifers and their associated confining units delineated in...
Authors
Stephen L. Harden, Jason M. Fine, Timothy B. Spruill
Phosphorus in a ground-water contaminant plume discharging to Ashumet Pond, Cape Cod, Massachusetts, 1999 Phosphorus in a ground-water contaminant plume discharging to Ashumet Pond, Cape Cod, Massachusetts, 1999
The discharge of a plume of sewagecontaminated ground water emanating from the Massachusetts Military Reservation to Ashumet Pond on Cape Cod, Massachusetts, has caused concern about excessive loading of nutrients, particularly phosphorus, to the pond. The U.S. Air Force is considering remedial actions to mitigate potentially adverse effects on the ecological characteristics of the pond...
Authors
Timothy D. McCobb, Denis R. LeBlanc, Donald A. Walter, Kathryn M. Hess, Douglas B. Kent, Richard L. Smith
A gentic survey of Salvinia minima in the southern United States A gentic survey of Salvinia minima in the southern United States
The genetic relationships among 68 samples of Salvinia minima (Salviniaceae) were investigated using RAPD analysis. Neighbor joining, principle components, and AMOVA analyses were used to detect differences among geographically referenced samples within and outside of Florida. Genetic distances (Nei and Li) range up to 0.48, although most are under 0.30, still relatively high levels for...
Authors
Paul T. Madeira, Colette C. Jacono, Phil Tipping, Thai K. Van, Ted D. Center
Selected hydrogeologic datasets for the Paluxy Aquifer, Texas Selected hydrogeologic datasets for the Paluxy Aquifer, Texas
No abstract available.
Authors
Natalie A. Houston, C. Amanda Garcia, Eric W. Strom