Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10392
Atrazine and metolachlor occurrence in shallow ground water of the United States, 1993 to 1995: Relations to explanatory factors Atrazine and metolachlor occurrence in shallow ground water of the United States, 1993 to 1995: Relations to explanatory factors
Since 1991, the U.S. Geological Survey has been conducting the National Water Quality Assessment (NAWQA) Program to determine the quality of the Nation's water resources. In an effort to obtain a better understanding of why pesticides are found in shallow ground water on a national scale, a set of factors likely to affect the fate and transport of two herbicides in the subsurface were...
Authors
D.W. Kolpin, J.E. Barbash, R. J. Gilliom
Stabilized liquid membrane device (SLMD) for the passive, integrative sampling of labile metals in water Stabilized liquid membrane device (SLMD) for the passive, integrative sampling of labile metals in water
A stabilized liquid membrane device (SLMD) is described for potential use as an in situ, passive, integrative sampler for cadmium (Cd), cobalt (Co), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) in natural waters. The SLMD (patent pending) consists of a 2.5-cm-wide by 15-cm-long strip of low-density polyethylene (LDPE) layflat tubing containing 1 mL of an equal mixture (v/v) of...
Authors
W. G. Brumbaugh, J. D. Petty, J.N. Huckins, S.E. Manahan
Patterns and processes of wetland loss in coastal Louisiana are complex: A reply to Turner 2001. Estimating the indirect effects of hydrologic change on wetland loss: If the Earth is curved, then how would we know it? Patterns and processes of wetland loss in coastal Louisiana are complex: A reply to Turner 2001. Estimating the indirect effects of hydrologic change on wetland loss: If the Earth is curved, then how would we know it?
The coastal wetlands of Louisiana comprise a vast expanse of marine to freshwater wetland plant communities interspersed w-ith shallow bays and bayous. These wetlands were built by processes associated with the present-day Mississippi and Atchatfalaya River deltas and older distributaries occupied by the river over the past 7,000 }rears. The high rates of wetland loss identified in this...
Authors
John W. Day, Gary P. Shaffer, Denise J. Reed, Donald R. Cahoon, Louis D. Britsch, Suzanne Hawes
Changes in density and height of the shrub baccharis halimifolia following burning in coastal tallgrass prairie Changes in density and height of the shrub baccharis halimifolia following burning in coastal tallgrass prairie
No abstract available.
Authors
Larry K. Allain, James B. Grace
Canopy disturbance patterns in a bottomland hardwood forest in northeast Arkansas, USA Canopy disturbance patterns in a bottomland hardwood forest in northeast Arkansas, USA
We characterized canopy disturbance patterns in a bottomland hardwood forest and identified linkages to tree species characteristics and interannual flooding patterns. We located 116 newly formed canopy gaps created by 136 gapmakers of 13 species. Over 83% of the gapmakers were snapped or uprooted (i.e., windthrow). The probability of any given gapmaker snapping or uprooting differed...
Authors
Sammy L. King, T. J. Antrobus
Prairie Cajuns and the Cajun Prairie: A history Prairie Cajuns and the Cajun Prairie: A history
No abstract available.
Authors
Malcolm Vidrine, William R. Pontenot, Charles Allen, Bruno Borsari, Larry K. Allain
Potential consequences of climate variability and change on coastal areas and marine resources Potential consequences of climate variability and change on coastal areas and marine resources
No abstract available.
Authors
John C. Field, Donald F. Boesch, Donald Scavia, Robert Buddemeier, Virginia Burkett, Daniel Cayan, Michael Fogarty, Mark Harwell, Robert Howarth, Curt Mason, L.J. Pietrafesa, Denise Reed, Thomas Royer, Asbury Sallenger, Michael Spranger, James G. Titus
Lepidopteran and odonate communities in the Cajun Prairie ecosystem in southwestern Louisiana Lepidopteran and odonate communities in the Cajun Prairie ecosystem in southwestern Louisiana
No abstract available.
Authors
Malcolm Vidrine, Charles Allen, Bruno Borsari, Larry K. Allain
Potential consequences of climate variability and change for the Southeastern United States Potential consequences of climate variability and change for the Southeastern United States
No abstract available.
Authors
Virginia Burkett, Ronald Ritschard, Steven McNulty, J. J. O’Brien, Robert C. Abt, James Jones, Upton Hatch, Brian Murray, Shrikant Jagtap, Jim Cruise
Biosecurity and regulatory considerations for transfer of cryopreserved sperm and early life stages of aquatic species Biosecurity and regulatory considerations for transfer of cryopreserved sperm and early life stages of aquatic species
No abstract available.
Authors
Terrence R. Tiersch, Jill A. Jenkins
Recent colonization of mangroves and nesting frigatebirds at Dry Tortugas Recent colonization of mangroves and nesting frigatebirds at Dry Tortugas
No abstract available.
Authors
Thomas Doyle, Thomas C. Michot, Richard H. Day, Christopher J. Wells
Sequence stratigraphy of a South Florida carbonate ramp and bounding siliciclastics (late Miocene-Pliocene) Sequence stratigraphy of a South Florida carbonate ramp and bounding siliciclastics (late Miocene-Pliocene)
In southern peninsular Florida, a late-early to early-late Pliocene carbonate ramp (Ochopee Limestone Member of the Tamiami Formation) is sandwiched between underlying marine siliciclastics of the late Miocene to early Pliocene Peace River Formation and an overlying late Pliocene unnamed sand. At least three depositional sequences (DS1, DS2, and DS3), of which two contain condensed...
Authors
Kevin J. Cunningham, David Bukry, T. Sato, John A. Barron, Laura A. Guertin, Ronald S. Reese