Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10420
Coastal Louisiana Coastal Louisiana
No abstract available
Authors
James G. Gosselink, J. Coleman, Robert E. Stewart
Natural establishment of woody species on abandoned agricultural fields in the lower Mississippi Valley: first- and second-year results Natural establishment of woody species on abandoned agricultural fields in the lower Mississippi Valley: first- and second-year results
The natural establishment of woody seedlings on abandoned agricultural fields was investigated at sites in Louisiana and Mississippi. Series of disked and undisked plots originating at forest edges and oriented in cardinal directions were established on fields at each site. During the firest 2 years, seedling recruitment was dominated by sweetgum, sugarberry, and elms at both sites...
Authors
J. A. Allen, J.W. McCoy, B. D. Keeland
The collection of clear-water contraction and abutment scour data at selected bridge sites in the coastal plain and piedmont of South Carolina The collection of clear-water contraction and abutment scour data at selected bridge sites in the coastal plain and piedmont of South Carolina
Clear-water contraction and abutment scour data were collected at 128 bridge sites in South Carolina. In the sandy soils of the Coastal Plain, clear-water-scour data were collected at 63 sites (scour depths ranged from 0.4 to 7.2 meters.) In the clayey soils of the Piedmont, clear-water-scour data were collected at 47 sites (scour depths ranged from 0 to 1.4 meters.) In the sandy, clayey...
Authors
Stephen T. Benedict, Andy W. Caldwell
Effects of flooding regime, mycorrhizal inoculation and seedling treatment type on first-year survival of Nuttal Oak (Quercus nuttallii Palmer) Effects of flooding regime, mycorrhizal inoculation and seedling treatment type on first-year survival of Nuttal Oak (Quercus nuttallii Palmer)
Three different types of Nuttall oak (Quercus nuttallii Palmer) seedlings were planted on floodprone, former cropland in Mississippi, Louisiana, and Texas. The three types of 1+0 seedlings planted at each site in January and February of 1995 were bareroot seedlings, seedlings grown in 164 square centimeters plastic containers, and container grown seedlings inoculated with vegetative...
Authors
Virginia Burkett, Hans Williams
Characterization of an old-growth bottomland hardwood wetland forest in Northeast Texas: Harrison Bayou Characterization of an old-growth bottomland hardwood wetland forest in Northeast Texas: Harrison Bayou
Most wetland losses in the southern region over the past 200 years have occurred in bottomland hardwood forests. By 1980 the original extent of palustrine bottomland in Texas had been reduced by 63%, from roughly 16 to 6 million acres. Additional losses have occurred during more recent years as a result of conversion to agriculture and timber harvests; these factors and the need to...
Authors
Laurence C. Walker, Thomas Brantley, Virginia Burkett
Water-quality assessment of the Frank Lyon, Jr., nursery pond releases into Lake Maumelle, Arkansas, 1991-1996 Water-quality assessment of the Frank Lyon, Jr., nursery pond releases into Lake Maumelle, Arkansas, 1991-1996
Releases of the Frank Lyon, Jr., Nursery Pond into Lake Maumelle were monitored during 1991 through 1996 to assess the impact that the releases have on the water quality of Lake Maumelle. Results indicated that the water-quality impact of the nursery pond release into Lake Maumelle is variable, and appears to be related to the volume of the nursery pond at release and the amount of...
Authors
W. Reed Green
Nonindigenous species: methods of introduction and impacts Nonindigenous species: methods of introduction and impacts
No abstract available.
Authors
Pamela L. Fuller
NIEHS sponsors workshop on amphibian deformities NIEHS sponsors workshop on amphibian deformities
No abstract available.
Authors
C. Kenneth Dodd
Perspectives on the land use history of North America: A context for understanding our changing environment Perspectives on the land use history of North America: A context for understanding our changing environment
Ecological change is constant and profound, yet it often occurs at temporal and spatial scales that are difficult to measure and interpret. This publication demonstrates how diverse data bases, archived in different formats and at numerous locations, can be brought together to provide an integrated perspective on the relationship between land use and landcover change. The authors provide...
A table of polyatomic interferences in ICP-MS A table of polyatomic interferences in ICP-MS
Spectroscopic interferences are probably the largest class of interferences in ICP-MS and are caused by atomic or molecular ions that have the same mass-to-charge as analytes of interest. Current ICP-MS instrumental software corrects for all known atomic “isobaric” interferences, or those caused by overlapping isotopes of different elements, but does not correct for most polyatomic...
Authors
Thomas W. May, Ray H. Wiedmeyer
Comparative sensitivity of five species of macrophytes and six species of algae to atrazine, metribuzin, alachlor, and metolachlor Comparative sensitivity of five species of macrophytes and six species of algae to atrazine, metribuzin, alachlor, and metolachlor
This study determined the relative sensitivity of five species of aquatic macrophytes and six species of algae to four commonly used herbicides (atrazine, metribuzin, alachlor, and metolachlor). Toxicity tests consisted of 96-h (duckweed and algae) or 14-d (submerged macrophytes) static exposures. The triazine herbicides (atrazine and metribuzin) were significantly more toxic to aquatic...
Authors
James F. Fairchild, Shane Ruessler, A. Ron Carlson