Publications
Explore WARC's science publications.
Filter Total Items: 3505
Modeling spatial distribution of the Unionid mussels and the core-satellite hypothesis Modeling spatial distribution of the Unionid mussels and the core-satellite hypothesis
This paper discusses the spatial distribution patterns of the various species of the Unionid mussels as functions of their respective life-cycle characteristics. Computer simulations identify two life-cycle characteristics as major factors governing the abundance of a species, namely the movement range of their fish hosts and the success rate of the parasitic larval glochidia in finding...
Authors
Hooi-Ling Lee, Donald L. DeAngelis, Hock Lye Koh
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
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
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
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
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
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
Consequences of cannibalism and competition for food in a smallmouth bass population: An individual-based modeling study Consequences of cannibalism and competition for food in a smallmouth bass population: An individual-based modeling study
We used an individual-based modeling approach to study the consequences of cannibalism and competition for food in a freshwater fish population. We simulated the daily foraging, growth, and survival of the age-0 fish and older juvenile individuals of a sample population to reconstruct patterns of density dependence in the age-0 fish during the growth season. Cannibalism occurs as a part...
Authors
Q. Dong, D.L. DeAngelis
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
Opinions and other actions of the International commission involving fishes: Appendix B Opinions and other actions of the International commission involving fishes: Appendix B
No abstract available.
Authors
W. N. Eschmeyer, W. F. Weibrecht, William F. Smith-Vaniz
Use of mini-refuges by female northern pintails wintering in southwestern Louisiana Use of mini-refuges by female northern pintails wintering in southwestern Louisiana
The Gulf Coast Joint Venture of the North American Waterfowl Management Plan began contracting private agricultural lands (hereafter mini-refuges) in 1988 to expand existing sanctuaries for northern pintails (Anas acuta) in southwestern Louisiana. Previous research suggested that mini-refuges may prove more attractive to pintails than permanent, open-water pools (pools) on refuges...
Authors
Robert R. Cox, Alan D. Afton