Publications
Explore WARC's science publications.
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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
Radio-tracking manatees from land and space: tag design, implementation, and lessons learned from long-term study Radio-tracking manatees from land and space: tag design, implementation, and lessons learned from long-term study
West Indian manatees (Trichechus manatus) were tracked along the Atlantic coast of Florida and Georgia (N = 83 manatees, n = 439 tag deployments, 1986-1996) and in eastern Puerto Rico (N = 8, n = 43, 1992-1996) using conventional and satellite-based radio-telemetry systems. A floating radio-tag, attached by a flexible tether to a padded belt around the base of the tail, enabled us to...
Authors
C. J. Deutsch, R. K. Bonde, J.P. Reid
The diet of the manatee (Trichechus Manatus) in Puerto Rico The diet of the manatee (Trichechus Manatus) in Puerto Rico
[No abstract available]
Authors
A. A. Mignucci-Giannoni, C.A. Beck
The interactive effects of fire and herbivory on a coastal marsh in Louisiana The interactive effects of fire and herbivory on a coastal marsh in Louisiana
Both vertebrate herbivores and fire have long been known to have dramatic and important effects on wetland vegetation. However, the interactive effects of burning and herbivory have received less attention. In this study, conducted in the coastal marshes of the Pearl River Basin in Louisiana, USA, both the effects of herbivory and fire as well as the interaction between these effects...
Authors
M.A. Ford, J.B. Grace
Generation of coastal marsh topography with radar and ground-based measurements Generation of coastal marsh topography with radar and ground-based measurements
A topographic surface of a low lying coastal marsh was created by using three flood extent vectors digitized from ERS-1 SAR images and two elevation contours from U.S. Geological Survey topographic quadrangles. Point measurement of water depth at the times of the SAR collections allowed conversion of the radar measured flood extent vectors to topographic contours. Generation of the...
Authors
Elijah W. Ramsey, G.A. Nelson, S.C. Laine, R.G. Kirkman, W. Topham
Nutrients, algae, and grazers - Book review: Pelagic nutrient cycles: Herbivores as sources and sinks Nutrients, algae, and grazers - Book review: Pelagic nutrient cycles: Herbivores as sources and sinks
No abstract available. Review info: Pelagic nutrient cycles: Herbivores as sources and sinks. By Tom Andersen, 1997. ISBN: 3540618813, 280 pp.
Authors
Donald L. DeAngelis
Vulnerability of coastal wetlands in the Southeastern United States: climate change research results, 1992-97 Vulnerability of coastal wetlands in the Southeastern United States: climate change research results, 1992-97
As part of the USGCRP research framework on coastal lands and ecosystems, the Biological Resources Division of the U.S. Geological Survey (National Wetlands Research Center) entered into partnership with Rice University, Louisiana State University, Duke University, Clemson University, University of Southwestern Louisiana, University of Georgia, and the Virginia Institute of Marine...
Authors
Glenn R. Guntenspergen, Beth A. Vairin
Key areas for wintering North American herons Key areas for wintering North American herons
Nearly all North American heron populations are migratory, but details of where they winter are little known. Locations where North American herons winter were identified using banding recovery data. North American herons winter from Canada through northern South America but especially in eastern North America south of New York, Florida, California, Louisiana, Texas, Mexico and Cuba...
Authors
T. Mikuska, J.A. Kushlan, S. Hartley
Guidelines for quality assurance and quality control of fish taxonomic data collected as part of the National Water-Quality Assessment Program Guidelines for quality assurance and quality control of fish taxonomic data collected as part of the National Water-Quality Assessment Program
Fish community structure is characterized by the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program as part of a perennial, multidisciplinary approach to evaluating the physical, chemical, and biological conditions of the Nation's water resources. The objective of quality assurance and quality control of fish taxonomic data that are collected as part of the NAWQA...
Authors
Stephen Joseph Walsh, Michael R. Meador
Imperilled wetlands - Book review: Mangroves and saltmarshes Imperilled wetlands - Book review: Mangroves and saltmarshes
Review info: Mangroves and saltmarshes. Edited by Eric Wolanski and Charles S. Hopkinson Jr., 1996.
Authors
Thomas J. Smith
Salinity characteristics of Florida Bay: A review of the archived data set (1955-1995) Salinity characteristics of Florida Bay: A review of the archived data set (1955-1995)
No abstract available.
Authors
S. Paul Orlando, C. John Klein, Michael B. Robblee