Publications
Explore WARC's science publications.
Filter Total Items: 3531
Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients Temperature effects on stocks and stability of a phytoplankton-zooplankton model and the dependence on light and nutrients
A model of a closed phytoplankton—zooplankton ecosystem was analyzed for effects of temperature on stocks and stability and the dependence of these effects on light and total nutrient concentration of the system. An analysis of the steady state equations showed that the effect of temperature on zooplankton and POM biomass was levelled when primary production is nutrient limited...
Authors
J. Norberg, D.L. DeAngelis
Effects of habitat suitability on the survival of relocated freshwater mussels Effects of habitat suitability on the survival of relocated freshwater mussels
Freshwater mussels are often relocated from existing beds for both conservation and management reasons. In this study, we empirically tested whether the habitat type at the destination site was important in predicting the success of mussel relocation. In 1993, four species of freshwater mussels were relocated in the Apalachicola River in Florida, into three distinct habitat types: stable...
Authors
Hannah M. Hamilton, Jayne Brim-Box, Robert M. Dorazio
AVHRR imagery used to identify hurricane damage in a forested wetland of Louisiana AVHRR imagery used to identify hurricane damage in a forested wetland of Louisiana
Certain events provide a unique opportunity to test the monitoring capability of AVHBR imagery. On 26 August 1992, Hurricane Andrew passed through Louisiana, impacting a large area of forested wetlands. One response to the widespread defoliation resulting from the hurricane impact was an abnormal bloom of new leaves and new growth in the underlying vegetation between September and...
Authors
Elijah W. Ramsey, D.K. Chappell, D.G. Baldwin
Potential for the Kentucky Dam tailwater of the Tennessee River to serve as a mussel refuge from invading zebra mussels Potential for the Kentucky Dam tailwater of the Tennessee River to serve as a mussel refuge from invading zebra mussels
No abstract available.
Authors
J. B. Sickel, J.J. Herod, H.N. Blalock
A rop net and removable walkway used to quantitatively sample fishes over wetland surfaces in the dwarf mangrove of the Southern Everglades A rop net and removable walkway used to quantitatively sample fishes over wetland surfaces in the dwarf mangrove of the Southern Everglades
We describe a 9 m2 drop net and removable walkways designed to quantify densities of small fishes in wetland habitats with low to moderate vegetation density. The method permits the collection of small, quantitative, discrete samples in ecologically sensitive areas by combining rapid net deployment from fixed sites with the carefully contained use of the fish toxicant rotenone. This...
Authors
J.J. Lorenz, C.C. McIvor, G.V.N. Powell, P. C. Frederick
Investigation into avian mortality in the Playa Lakes region of southeastern New Mexico: Final Report - June 1997 Investigation into avian mortality in the Playa Lakes region of southeastern New Mexico: Final Report - June 1997
This Final Report is a review of work on a cooperative study undertaken by the USGS Biological Resources Division's National Wildlife Health Center (NWHC) and National Wetlands Research Center (NWRC; formerly the Southern Science Center) from 1994 through 1997. The study was initiated at the request of the Bureau of Land Management (BLM), through a request to the former National...
Authors
F. Joshua Dein, Laurie A. Baeten, Melody K. Moore, Michael D. Samuel, Paul D. Miller, Christopher Murphy, Steven Sissler, Clinton W. Jeske, Joseph R. Jehl, J. S. Yaeger, B. Bauer, Shiela A. Mahoney
Status and restoration of the Etowah River, an imperiled Southern Appalachian Ecosystem Status and restoration of the Etowah River, an imperiled Southern Appalachian Ecosystem
Abstract not supplied at this time
Authors
N.M. Burkhead, S. J. Walsh, B. J. Freeman, J.D. Williams
The influence of vines on an oligohaline marsh community: Results of a removal and fertilization study The influence of vines on an oligohaline marsh community: Results of a removal and fertilization study
The effects of competitive suppression by vines on the non-vine plant community have received little attention in temperate habitats. This study investigated the impact vines have on their herbaceous hosts in a wetland community at two soil fertility levels. Plots in an oligohaline marsh were treated in a 2 x 2 factorial design with vine removal and fertilization over two growing seasons...
Authors
L. Gough, J.B. Grace
Histological analysis of gonad development in zebra mussels (Bivalvia: Dreissenidae) from the Tennessee and Ohio Rivers Histological analysis of gonad development in zebra mussels (Bivalvia: Dreissenidae) from the Tennessee and Ohio Rivers
No abstract available.
Authors
K. J. Brinkley, J. Sickel, L. Duobinis-Gray, J. Herod
Coastal wetlands and climate change Coastal wetlands and climate change
Abstract has not been submitted
Authors
G.R. Guntenspergen, B.A. Vairin, V.R. Burkett, D. McGrath
Facing the challenges of invasive alien species in North America Facing the challenges of invasive alien species in North America
Abstract not supplied at this time
Authors
I.E. Effort, C. Macias Garcia, J.D. Williams