Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9969
Water quality of the Apalachicola-Chattahoochee-Flint and Ocmulgee River Basins related to flooding from Tropical Storm Alberto; pesticides in urban and agricultural watersheds; and nitrate and pesticides in ground water, Georgia, Alabama, and Florida
This report presents preliminary water-quality information from three studies that are part of the National Water-Quality Assessment (NAWQA) Program in the Apalachicola-Chattahoochee-Flint (ACF) River basin and the adjacent Ocmulgee River basin. During the period July 3-7, 1994, heavy rainfall from tropical storm Alberto caused record flooding on the Ocmulgee and Flint Rivers and several of their
Authors
D. J. Hippe, D. J. Wangsness, E. A. Frick, J.W. Garrett
Water Resources Data, South Carolina, Water Year 1993
No abstract available.
Authors
C.S. Bennett, T.W. Cooney, K.H. Jones, P.A. Drewes
A water-renewal system that accurately delivers small volumes of water to exposure chambers
This paper describes a system that can accurately deliver small volumes of water (50 ml per cycle) to eight 300-ml beakers. The system is inexpensive <$100), easy to build (<8 h), and easy to calibrate (<15 min), and accurately delivers small volumes of water (<5% variability).
Authors
D. C. Zumwalt, F.J. Dwyer, I.E. Greer, C.G. Ingersoll
Integrating a resource assessment model into arc/info GIS: A spatial decision support system development
No abstract available.
Authors
Wei Ji
Managing coastal wetlands: Complexities, compromises, and concerns
No abstract available
Authors
Joy B. Zedler, Abby Powell
Production and decomposition of Spartina patens in a degrading coastal marsh
Production and decomposition rates were calculated for Spartina patens in a mesohaline coastal marsh in Louisiana. Production was estimated to be 800 g m2 yr-1 during 1991 and 1,696 g m-1 yr-1 during 1992. The relative decomposition rate of S. patens stems was -0.001152 g g-1 d-1 which may be restated as a half life of 395 days. Both production and decomposition rates for this area arelow relative
Authors
Lori A. Johnson, Kathleen A. Reynolds, A. Lee Foote
Diet differences in Redheads from nearshore and offshore zones in Louisiana
Habitat management decisions for diving ducks in winter are limited by the lack of information concerning their use of nearshore and offshore zones. Therefore, we compared diets of redheads (Aythya americana) collected from nearshore (n = 206) and offshore (n = 72) zones during winters at the Chandeleur Islands, Louisiana, 1987-89. A greater (P < 0.05) proportion of redheads from nearshore had foo
Authors
Thomas C. Michot, A.J. Nault
Wetland systems and their response to management
No abstract available.
Authors
Glenn R. Guntenspergen, J.R. Keough, J. Allen
Nesting habitat of Belding’s Savannah sparrows in coastal salt marshes
Although the Belding’s Savannah sparrow (Passerculus sandwichensis beldingl) is listed as endangered in California, little is known about the factors that affect its abundance and distribution. Numbers of breeding pairs, nesting territory sizes, and vegetation characteristics were measured at fourteen study plots in two southern California coastal wetlands, Tijuana Estuary and Los Peñasquitos Lago
Authors
Abby Powell
Global climate change: Implications for submerged aquatic vegetation
No abstract available.
Authors
William M. Rizzo, Hilary A. Neckles
Spectral reflectance and canopy structure characteristics of gulf coast wetland vegetation types
Field measurements of canopy structure and species composition are related to spectral reflectance measurements taken with a radiometer over a number of marsh sites. Marsh vegetation types are discussed in terms of their characteristic canopy structure and phenology; the influence of these characteristics on spectral reflectance will be examined. Vegetation types that are discussed include Panicum
Authors
R. Spell, Elijah W. Ramsey III
Ecological Benefits of the Conservation Reserve Program
No abstract available.
Authors
Christopher P. Dunn, F. Stearns, Glenn R. Guntenspergen, David M. Sharpe