Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10386
The relationship between species richness and community biomass: The importance of environmental variables The relationship between species richness and community biomass: The importance of environmental variables
Several studies have used plant community biomass to predict species richness with varying success. In this study we examined the relationship between species richness and biomass for 36 marsh communities from two different watersheds. In addition, we measured several environmental variables and estimated the potential richness (the total number of species known to be able to occur in a...
Authors
L. Gough, J.B. Grace, K.L. Taylor
Geographic distribution: Leiocephalus carinatus virescens (Exuma Islands Curlytail Lizard) Geographic distribution: Leiocephalus carinatus virescens (Exuma Islands Curlytail Lizard)
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd
Intraspecific variation in the response of Taxodium distichum seedlings to salinity Intraspecific variation in the response of Taxodium distichum seedlings to salinity
Seedlings of 15 open-pollinated families of baldcypress (Taxodium distichum) were tested for their tolerance to combined salinty and flooding stress. Ten of the families were from coastal locations in Louisiana or Alabama, USA, that were slightly brackish. The other families were from locations not affected by saltwater intrusion. Five salinity levels were investigated--0,2,4,6, and 8 g...
Authors
J. A. Allen, J. L. Chambers, D. McKinney
Life history notes: Alsophis vudii vudii (Brown runner). Diet and Growth Life history notes: Alsophis vudii vudii (Brown runner). Diet and Growth
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd
Nutrient values of piranha (Characidae: Serrasalminae) prey items Nutrient values of piranha (Characidae: Serrasalminae) prey items
No abstract available.
Authors
L.G. Nico, M. Morales
Recognition of mussel taxa: a conservation challenge Recognition of mussel taxa: a conservation challenge
Abstract not supplied at this time
Authors
J.D. Williams, M. Mulvey
Geographic distribution: Sphaerodactylus nigropunctatus nigropunctatus (Exuma Islands Black-spotted Ground Gecko) Geographic distribution: Sphaerodactylus nigropunctatus nigropunctatus (Exuma Islands Black-spotted Ground Gecko)
No abstract available.
Authors
R. Franz, C. Kenneth Dodd
Reconnaissance investigations of potential ground-water and sediment contamination at three former underground storage tank locations, Fort Jackson, South Carolina, 1994 Reconnaissance investigations of potential ground-water and sediment contamination at three former underground storage tank locations, Fort Jackson, South Carolina, 1994
Investigations to provide initial qualitative delineation of petroleum hydrocarbon contamination at three former underground storage tank locations at Fort Jackson, South Carolina, were made during March 1994. Ground-water and sediment samples were collected using direct-push technology and analyzed on-site with a gas chromatograph, which provided real-time, semi-quantitative data. In...
Authors
J. F. Robertson, Douglas D. Nagle, Liesl C. Rhodes
Estimated withdrawals and use of freshwater in Maine, 1990 Estimated withdrawals and use of freshwater in Maine, 1990
No abstract available.
Authors
M.C. Loiselle, M.A. Horn, Laura Medalie
Regional hydrology and simulation of deep ground-water flow in the Southeastern Coastal Plain aquifer system in Mississippi, Alabama, Georgia, and South Carolina Regional hydrology and simulation of deep ground-water flow in the Southeastern Coastal Plain aquifer system in Mississippi, Alabama, Georgia, and South Carolina
The Southeastern Coastal Plain aquifer system is a coastward-sloping, wedge-shaped sand and gravel reservoir exposed in outcrop to a humid climate and drained by an extensive surface-water network. Ground-water pumpage has increased to about 765 cubic feet per second since 1900, causing water-level declines of more than 150 feet in places, while base flow to major streams has decreased...
Authors
R.A. Barker, Maribeth Pernik
Water-resources activities in Georgia, 1993 Water-resources activities in Georgia, 1993
No abstract available.
Authors
Carolyn A. Casteel, Mary D. Ballew
Water-resources data for the Valdosta area, south-central Georgia, 1961-93 Water-resources data for the Valdosta area, south-central Georgia, 1961-93
The Upper Floridan aquifer is the sole source of water supply for the city of Valdosta, Ga., and much of the surrounding area. Users and water-resources managers and developers are concerned about the quality of water in the aquifer. The water quality of a large part of the Upper Floridan aquifer in the Valdosta area is affected by direct recharge of water from the Withlacoochee River to...
Authors
James B. McConnell, Eurybiades Busenberg, Niel Plummer