Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10483
A pre-vegetated mat technique for the restoration of submersed aquatic vegetation A pre-vegetated mat technique for the restoration of submersed aquatic vegetation
Communities of submersed aquatic vegetation (SAV) provide critical habitat for wintering waterfowl and many commercially important fish species. Submersed aquatic vegetation also helps minimize storm damage by reducing wave action and stabilizing sediments, and they improve water quality by sequestering nutrients and contaminants (Zieman and Zieman 1989).
Authors
R.G. Boustany
Genotype and elevation influence Spartina alterniflora colonization and growth in a created salt marsh Genotype and elevation influence Spartina alterniflora colonization and growth in a created salt marsh
Colonization, growth, and clonal morphology differ with genotype and are influenced by elevation. Local adaptation of Spartina alterniflora to environmental conditions may lead to dominance by different suites of genotypes in different locations within a marsh. In a constructed marsh, we found reduced colonization in terms of density of clones with increasing distance from edge in a 200...
Authors
C.E. Proffitt, S.E. Travis, K.R. Edwards
Natural history notes: Terrapene carolina bauri (Florida Box Turtle). Rehydration Natural history notes: Terrapene carolina bauri (Florida Box Turtle). Rehydration
Abstract not supplied at this time
Authors
C.K. Dodd, Marian L. Griffey
The behavior of U- and Th-series nuclides in the estuarine environment The behavior of U- and Th-series nuclides in the estuarine environment
Rivers carry the products of continental weathering, and continuously supply the oceans with a broad range of chemical constituents. This erosional signature is, however, uniquely moderated by biogeochemical processing within estuaries. Estuaries are commonly described as complex filters at land-sea margins, where significant transformations can occur due to strong physico-chemical...
Authors
P.W. Swarzenski, D. Porcelli, P.S. Andersson, J.M. Smoak
Modeling manifest variables in longitudinal designs - A two-stage approach Modeling manifest variables in longitudinal designs - A two-stage approach
No abstract available
Authors
Bret E. Fuller, Alexander von Eye, P. K. Wood, Bobby D. Keeland
Workshop 3.5: Closing the gap between exposure and effects in monitoring studies Workshop 3.5: Closing the gap between exposure and effects in monitoring studies
A major challenge to contaminant monitoring programs is the selection of an appropriate suite of measurements for assessing exposure and effects. Early monitoring programs relied solely on residue analysis to detect the organochlorine compounds that were in use at that time. A shift to the use of more transient, less persistent chemicals required that a new set of tools be developed to...
Authors
Donald E. Tillitt, Diana M. Papoulias
Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment
No abstract available.
Authors
J.P. Reid, Susan M. Butler, Dean E. Easton, Bradley Stith
The interactive effects of UV-B and insecticide exposure on tadpole survival, growth and development The interactive effects of UV-B and insecticide exposure on tadpole survival, growth and development
Because declines within amphibian populations can seldom be attributed to a single cause, it is important to focus on multiple stressors, both natural and anthropogenic. Variables such as UV-B radiation and chemical contamination can interact with one another in ways that might not be predicted from single-factor studies. We exposed southern leopard frog (Rana sphenocephala) tadpoles to...
Authors
Christine M. Bridges, Michelle D. Boone
Modeling manatee response to restoration in the Everglades and Ten Thousand Islands Modeling manatee response to restoration in the Everglades and Ten Thousand Islands
No abstract available.
Authors
Bradley Stith, James P. Reid, Dean E. Easton, Susan M. Butler
The importance of spatial scale in the modeling of aquatic ecosystems: Chapter 24 The importance of spatial scale in the modeling of aquatic ecosystems: Chapter 24
No abstract available
Authors
Donald L. DeAngelis, Wolf M. Mooij, A. Basset
Water Resources Data, Alabama, Water Year 2002 Water Resources Data, Alabama, Water Year 2002
Water resources data for the 2002 water year for Alabama consist of records of stage, discharge, and water quality of streams; stages and contents of lakes and reservoirs; and water levels in wells. This report includes records on both surface and ground water in the State. Specifically, it contains: (1) discharge records for 131 streamflow-gaging stations, for 41 partial-record or...
Authors
J. L. Pearman, V.E. Stricklin, W. L. Psinakis
Database of historically documented springs and spring flow measurements in Texas Database of historically documented springs and spring flow measurements in Texas
Springs are naturally occurring features that convey excess ground water to the land surface; they represent a transition from ground water to surface water. Water issues through one opening, multiple openings, or numerous seeps in the rock or soil. The database of this report provides information about springs and spring flow in Texas including spring names, identification numbers...
Authors
Franklin T. Heitmuller, Brian D. Reece