Publications
Explore WARC's science publications.
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Biogeographic affinity helps explain productivity-richness relationships at regional and local scales
The unresolved question of what causes the observed positive relationship between large-scale productivity and species richness has long interested ecologists and evolutionists. Here we examine a potential explanation that we call the biogeographic affinity hypothesis, which proposes that the productivity-richness relationship is a function of species' climatic tolerances that in turn are shaped b
Authors
S. Harrison, J.B. Grace
Characterising reef fish populations and habitats within and outside the US Virgin Islands Coral Reef National Monument: A lesson in marine protected area design
Marine protected areas are an important tool for management of marine ecosystems. Despite their utility, ecological design criteria are often not considered or feasible to implement when establishing protected areas. In 2001, the Virgin Islands Coral Reef National Monument (VICRNM) in St John, US Virgin Islands was established by Executive Order. The VICRNM prohibits almost all extractive uses. Su
Authors
Mark E. Monaco, A. M. Friedlander, Chris Caldow, J.D. Christensen, C. Rogers, J. Beets, J. Miller, Rafe Boulon
Prescribed fire and cutting as tools for reducing woody plant succession in a created salt marsh
This paper reports on efforts to reduce woody successional growth by the native shrub Iva frutescens L. in a created salt marsh by using prescribed fire and cutting. Experimental treatments included a winter burn, cutting plants at ground level, and a combination burn-and-cut treatment, with replicate plots of each. Iva frutescens proved to be extremely hardy, with zero mortality following the cut
Authors
A.B. Owens, C.E. Proffitt, J.B. Grace
Hypoxia tolerance of two centrarchid sunfishes and an introduced cichlid from karstic Everglades wetlands of southern Florida, U.S.A.
In this study, the hypoxia tolerance of three Everglades fishes, two native centrarchids (Lepomis gulosus and Lepomis marginatus) and a recently introduced cichlid (Hemichromis letourneuxi), were documented. Aquatic surface respiration (ASR) thresholds were lowest for H. letourneuxi, followed by L. gulosus, then L. marginatus. The ASR thresholds for L. marginatus were within ranges reported for sm
Authors
P. J. Schofield, W.F. Loftus, M.E. Brown
Toxicity of 5% rotenone to nonindigenous Asian swamp eels
Our primary goal was to determine whether rotenone would be a useful control against introduced populations of Asian swamp eels (family Synbranchidae, genus Monopterus). We report the results of a laboratory experiment comparing the efficacy of various rotenone concentrations (1, 2, 4, and 8 mg of 5% liquid rotenone/L of water) in killing nonindigenous swamp eels of various sizes (1-350 g) from th
Authors
P. J. Schofield, L.G. Nico
Testing tail-mounted transmitters with Myocastor coypus (nutria)
We developed a tail-mounted radio-transmitter for Myocastor coypus (nutria) that offers a practical and efficient alternative to collar or implant methods. The mean retention time was 96 d (range 57-147 d, n = 7), making this a practical method for short-term studies. The tail-mounts were less injurious to animals than collars and easier for field researchers to implement than either collars or su
Authors
S. Merino, J. Carter, G. Thibodeaux
Diet induced differences in carbon isotope fractionation between sirenians and terrestrial ungulates
Carbon isotope differences (??13C) between bioapatite and diet, collagen and diet, and bioapatite and collagen were calculated for four species of sirenians, Dugong dugon (Mu??ller), Trichechus manatus (Linnaeus), Trichechus inunguis (Natterer), and the extinct Hydrodamalis gigas (Zimmerman). Bone and tooth samples were taken from archived materials collected from populations during the mid eighte
Authors
M.T. Clementz, P.L. Koch, C.A. Beck
Research on the impacts of past and future hurricanes on the endangered Florida manatee
U.S. Geological Survey (USGS) research on Florida manatees (Trichechus manatus latirostris) from 1982 through 1998 identified lower apparent survival rates for adult manatees during years when Hurricane Elena (1985), the March "Storm of the Century"(1993), and Hurricane Opal (1995) hit the northern coast of the Gulf of Mexico. Although our analysis showed that a significant number of our monitored
Authors
Catherine A. Langtimm, M. Dennis Krohn, Bradley Stith, James P. Reid, C.A. Beck, Susan M. Butler
Bacteriological water quality in and around Lake Pontchartrain following Hurricanes Katrina and Rita
Following the Louisiana landfalls of Katrina on August 29 and Rita on September 24, 2005, the local population and the American public were concerned about the effects the hurricanes might have on water quality in Lake Pontchartrain. The lake is a major recreational resource for the region and an important fishery. Contamination carried by the storm surge—along with runoff and water pumped from fl
Authors
Dennis K. Demcheck, Donald M. Stoeckel, Rebecca N. Bushon, David S. Blehert, Daniel J. Hippe
Movements of large snakes (Drymarchon, Masticophis) in north-central Florida
Abstract not supplied at this time
Authors
C.K. Dodd, W.J. Barichivich
Right whale mortality: a message from the dead to the living
Abstract not supplied at this time
Authors
M.J. Moore, W.A. McLellan, P.-Y. Daoust, R. K. Bonde, A.R. Knowlton
Applying radar technology to migratory bird conservation and management: Strengthening and expanding a collaborative
Executive Summary
Understanding the factors affecting migratory bird and bat populations during all three phases of their life cycle—breeding, nonbreeding, and migration—is critical to species conservation planning. This includes the need for information about these species’ responses to natural challenges, as well as information about the effects of human activities and structures. Habitats and o
Authors
Janet M. Ruth, Albert Manville, Ron Larkin, Wylie C. Barrow, Lori Johnson-Randall, Deanna K. Dawson, Robert H. Diehl, Yufang Wang, Richard S. Sojda, Rafal Angryk, Robert W. Klaver, Reggie Mead, John Paxton, Patricia J. Heglund, Eileen Kirsch, Manuel J. Suarez, Larry Robinson, Sidney A. Gauthreaux, Carroll G. Belser, Steven J. Franke, Bruno Bruderer, Jeffrey J. Buler, Frank R. Moore, David S. Mizrahi, Robert Fogg, T. Adam Kelly, Paul M. Cryan, Tim Crum, Terry J. Schuur, Dave Krueper, Robb Diehl, Tom Will