Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5568
Southern region: Forest research reort Southern region: Forest research reort
No abstract available.
Authors
Virginia Burkett, Scott Beasley, Peter Roussopoulos, James P. Barnett
The potential impact of herbivores on the susceptibility of the marsh plant Sagittaria lancifolia to saltwater intrusion in coastal wetlands The potential impact of herbivores on the susceptibility of the marsh plant Sagittaria lancifolia to saltwater intrusion in coastal wetlands
The objective of this study was to experimentally evaluate the effects of simulated herbivory on the ability of a freshwater marsh plant to recover from temporary saltwater intrusion such as can be caused by tropical storms. Sods containing Sagittaria lancifolia, a dominant plant in interior coastal marshes, were manipulated in the field so as to subject plants to a pulse of 15‰ salt...
Authors
James B. Grace, Mark Ford
Effects of municipal wastewater on baldcypress (Taxodium distichum (L.) rich.) productivity in a Louisiana swamp Effects of municipal wastewater on baldcypress (Taxodium distichum (L.) rich.) productivity in a Louisiana swamp
No abstract available.
Authors
I.D. Hesse, Thomas W. Doyle
Small watershed studies: Analytical approaches for understanding ecosystem response to environmental change Small watershed studies: Analytical approaches for understanding ecosystem response to environmental change
Biogeochemical studies in small watersheds provide an analytical approach to understand how ecosystems respond to natural climatic variations and human-induced environmental change. Small watersheds, usually less than 5 km2, are small enough to permit characterization and understanding of ecosystem processes within relatively simple, homogeneous biological and physical settings; yet they...
Authors
Thomas G. Huntington, R. P. Hooper, Peter S. Murdoch
National Biological Service's neotropical bird research program in the Chenier Plain of the Gulf of Mexico National Biological Service's neotropical bird research program in the Chenier Plain of the Gulf of Mexico
No abstract available.
Authors
Carroll L. Cordes, Wylie C. Barrow
An examination of organic/carbonate-bound metals in bottom sediments of Bayou Trepagnier, Louisiana An examination of organic/carbonate-bound metals in bottom sediments of Bayou Trepagnier, Louisiana
To assess potential impact of metals on the biosphere in bottom sediments, forms were determined for selected metals in a southeastern Louisiana bayou, Bayou (B.) Trepagnier, which has been impacted by industrial activity at its head by a manufacturing complex (MC). Ten pairs of cores along the length of the bayou allowed variation with distance to be studied. Sequential extractions...
Authors
Timothy J. Dore, Alan M. Bailey, John W. McCoy, Glenn W. Johnson
Initial comparison of bird communities of three southern forested wetlands Initial comparison of bird communities of three southern forested wetlands
No abstract available.
Authors
P.B. Hamel, Wylie C. Barrow, Richard A. Fischer, Michael P. Guilfoyle, Terry J. Spengler, James S. Wakely
Effects of spatial and temporal variation of acid-volatile sulfide on the bioavailability of copper and zinc in freshwater sediments Effects of spatial and temporal variation of acid-volatile sulfide on the bioavailability of copper and zinc in freshwater sediments
Variation in concentrations of acid-volatile sulfide (AVS) in sediments from the upper Clark Fork River of Montana, USA, was associated with differences in bioaccumulation of Cu and Zn and growth of larvae of the midge, Chironomus tentans. Growth of midge larvae was significantly greater and bioaccumulation of Cu was significantly less in surface sections (0–3 cm depth) of sediment cores...
Authors
John M. Besser, Christopher G. Ingersoll, John P. Giesty
Neosho madtom distribution and abundance in the Spring River Neosho madtom distribution and abundance in the Spring River
No abstract available.
Authors
Christopher D. Wilkinson, David R. Edds, Joseph Dorlac, Mark L. Wildhaber, Christopher J. Schmitt, Ann L. Allert
Selenium bioaccumulation and hazards in a fish community affected by coal fly ash effluent Selenium bioaccumulation and hazards in a fish community affected by coal fly ash effluent
Bioaccumulation of selenium (Se) in the fish community of Pigeon River/Pigeon Lake, which receives inputs of Se from a coal fly ash disposal facility, was studied to assess potential hazards of Se to fish, wildlife, and humans. Se concentrations in fish from sites receiving seepage and effluents from fly ash disposal ponds were significantly greater than those in fish from upstream...
Authors
John M. Besser, John P. Giesy, Russell W. Brown, Julie M. Buell, G. A. Dawson
Quality control considerations for the determination of acid-volatile sulfide and simultaneously extracted metals in sediments Quality control considerations for the determination of acid-volatile sulfide and simultaneously extracted metals in sediments
The determination of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEMs) in sediment by treatment with dilute HCl shows promise as a tool for predicting the potential for metal toxicity to sediment-dwelling organisms. Effective quality control measures must be developed if this method is to become a reliable procedure and to ensure comparability of data. However...
Authors
William G. Brumbaugh, Jesse W. Arms
Plant succession and greentree reservoir management: Implications for management and restoration of bottomland hardwood wetlands Plant succession and greentree reservoir management: Implications for management and restoration of bottomland hardwood wetlands
Bottomland hardwood forests are distributed along rivers and streams throughout the central and eastern United States, with the greatest concentration in the Southeast. Past and projected losses of bottomland hardwoods and degradation of remaining stands suggest that habitat management and/or restoration strategies that target multiple species and multiple uses will be necessary to...
Authors
Sammy L. King, James A. Allen