Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5568
Biological diversity of a temporary pond herpetofauna in north Florida sandhills Biological diversity of a temporary pond herpetofauna in north Florida sandhills
From 1985 through 1990, the herpetofauna of a temporary pond in an uplands longleaf pine sandhills community in north-central Florida was monitored. A drift fence completely encircled the pond. Animals were captured in pitfall traps and marked as they entered and exited the pond basin. I captured 16 155 individuals of 42 species (16 amphibians, 26 reptiles). The species richness...
Authors
C.K. Dodd
Loggerhead sea turtle Caretta caretta (Linnaeus) Loggerhead sea turtle Caretta caretta (Linnaeus)
Abstract not supplied at this time
Authors
C.K. Dodd
Redistribution of soil nitrogen, carbon and organic matter by mechanical disturbance during whole-tree harvesting in northern hardwoods Redistribution of soil nitrogen, carbon and organic matter by mechanical disturbance during whole-tree harvesting in northern hardwoods
To investigate whether mechanical mixing during harvesting could account for losses observed from forest floor, we measured surface disturbance on a 22 ha watershed that was whole-tree harvested. Surface soil on each 10 cm interval along 81, randomly placed transects was classified immediately after harvesting as mineral or organic, and as undisturbed, depressed, rutted, mounded...
Authors
D.F. Ryan, Thomas G. Huntington, Martin C. Wayne
Interim report of the technical workshop on manatee population biology. Manatee Population Research Report No. 10 Interim report of the technical workshop on manatee population biology. Manatee Population Research Report No. 10
Abstract not supplied at this time
Authors
T. J. O'Shea, B.B. Ackerman
A chemometric study of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in Great Lakes fish A chemometric study of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in Great Lakes fish
No abstract available.
Authors
D.L. Stalling, T.R. Schwartz, D. S. De Vault, W. Dunn, S. Wold, P. Berggvist, K. Wiberg, C. Rappe
Cadmium and mercury in emergent mayflies (Hexagenia bilineata) from the upper Mississippi River Cadmium and mercury in emergent mayflies (Hexagenia bilineata) from the upper Mississippi River
Burrowing mayflies (Hexagenia bilineata) were analyzed to assess longitudinal patterns in their cadmium and mercury content along the upper Mississippi River. Emergent mayflies (subimagoes and imagoes) were collected in 1988 at 34 sites (25 navigation pools), extending 1260 km from Little Falls, Minnesota, downstream to St. Louis, Missouri. Cadmium concentrations in composite samples of...
Authors
J. Therese Dukerschein, James G. Wiener, Ronald G. Rada, Mark T. Steingraeber
Study links Big Cypress fox squirrel to golf courses Study links Big Cypress fox squirrel to golf courses
Abstract not supplied at this time
Authors
P.G.R. Jodice, J.R. Snyder
Effects of impoundments on freshwater mussels (Mollusca: Bivalvia: Unionidae) in the main channel of the Black Warrior and Tombigbee rivers in western Alabama Effects of impoundments on freshwater mussels (Mollusca: Bivalvia: Unionidae) in the main channel of the Black Warrior and Tombigbee rivers in western Alabama
Abstract not supplied at this time
Authors
J.D. Williams, S.L.H. Fuller, R. Grace
The Florida manatee, Trichechus manatus latirostris The Florida manatee, Trichechus manatus latirostris
Abstract not supplied at this time
Authors
T. J. O'Shea, M.E. Ludlow
The non-marine herpetofauna of Egmont Key, Hillsborough County, Florida The non-marine herpetofauna of Egmont Key, Hillsborough County, Florida
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd, A.M. Bard
American swallow-tail kite American swallow-tail kite
No abstract available
Authors
J. Allen, Wayne Norling
Use of semipermeable membrane devices for in situ monitoring of polycyclic aromatic hydrocarbons in aquatic environments Use of semipermeable membrane devices for in situ monitoring of polycyclic aromatic hydrocarbons in aquatic environments
A method is given for the recovery, cleanup, and analysis of polycyclic aromatic hydrocarbons (PAHs) that have been sequestered in SPMDs (semipermeable membrane devices). SPMDs are polymeric membranes enclosing lipids, and mimic the bioconcentration process of aquatic animals. SPMDs are used as passive, in situ monitors of contamination by organic pollutants of aquatic environments. The...
Authors
Jon A. Lebo, James L. Zajicek, James N. Huckins, Jimmie D. Petty, Paul H. Peterman