Publications
Explore WARC's science publications.
Filter Total Items: 3510
Pallid sturgeon in the Lower Mississippi Region: Hematology and genome information Pallid sturgeon in the Lower Mississippi Region: Hematology and genome information
This project (Project 1448-43270-2M-002) has been coordinated through the Natchitoches National Fish Hatchery (NNFH) and the U.S. Geological Survey’s National Wetlands Research Center (NWRC). From November 2001 to April 2002, over 280 sturgeon of the genus Scaphirhynchus (including pallid sturgeon, shovelnose, and their hybrids) were sampled from the outflow channel of the Old River...
Authors
Jill A. Jenkins
Movements of Gulf sturgeon (Acipenser oxyrinchus desotoi) in nearshore habitat as determined by acoustic telemetry Movements of Gulf sturgeon (Acipenser oxyrinchus desotoi) in nearshore habitat as determined by acoustic telemetry
Gulf sturgeon were tagged with telemetry tags and were tracked and relocated in fall and early winter of 1996 and 1998 to determine migration patterns and winter feeding habitats after they emigrated from the Suwannee River, Florida, into the Gulf of Mexico. We hypothesized that their migration would generally follow the drowned Suwannee River channel across the West Florida shelf. Fish...
Authors
R. E. Edwards, K. J. Sulak, Craig B. Grimes, M. Randall
Using ground-placed PVC pipes to monitor hylid treefrogs: Capture biases Using ground-placed PVC pipes to monitor hylid treefrogs: Capture biases
We sampled a population of two species of hylid treefrogs using 90 vertical ground-placed PVC pipes of 3 diameters positioned along a 1500-m transect at a forest-open pond ecotone in north-central Florida in order to identify potential capture biases. We recorded 1,981 treefrog observations (778 unmarked, 1,203 recaptures) in 8 months. Our results identified species-specific seasonal and...
Authors
M. Zacharow, W.J. Barichivich, C.K. Dodd
Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida
The objectives of this study were to determine effects of nutrient enrichment on plant growth, nutrient dynamics, and photosynthesis in a disturbed mangrove forest in an abandoned mosquito impoundment in Florida. Impounding altered the hydrology and soil chemistry of the site. In 1997, we established a factorial experiment along a tree-height gradient with three zones, i.e., fringe...
Authors
Ilka C. Feller, D.F. Whigham, K.L. McKee, C. E. Lovelock
In praise of mechanistically-rich models In praise of mechanistically-rich models
Quantitative models are crucial to almost every area of ecosystem science. They provide a logical structure that guides and informs empirical observations of ecosystem processes. They play a particularly crucial role in synthesizing and integrating our understanding of the immense diversity of ecosystem structure and function. Increasingly, models are being called on to predict the...
Authors
Donald L. DeAngelis, Wolf M. Mooij
Wildlife mortality on Highway U.S. 441 across Paynes Prairie, Alachua County, Florida Wildlife mortality on Highway U.S. 441 across Paynes Prairie, Alachua County, Florida
Abstract not supplied at this time
Authors
L. L. Smith, C.K. Dodd
Leaf litterbags: factors affecting capture of stream-dwelling salamanders Leaf litterbags: factors affecting capture of stream-dwelling salamanders
No abstract available.
Authors
J. L. Waldron, C. Kenneth Dodd, Jeffrey D. Corser
Historical and projected coastal Louisiana land changes: 1978-2050 Historical and projected coastal Louisiana land changes: 1978-2050
An important component of the Louisiana Coastal Area (LCA) Comprehensive Coastwide Ecosystem Restoration Study is the projection of a “future condition” for the Louisiana coast if no further restoration measures were adopted. Such a projection gives an idea of what the future might hold without implementation of the LCA plan and provides a reference against which various ecosystem...
Authors
John Barras, Shelly Beville, Del Britsch, Stephen Hartley, Suzanne Hawes, James Johnston, Paul Kemp, Quin Kinler, Antonio Martucci, Jon Porthouse, Denise Reed, Kevin Roy, Sijan Sapkota, Joseph Suhayda
Using strip-transect aerial surveys to estimate manatee abundance and population trend in the Ten Thousand Islands Region of southwest Florida Using strip-transect aerial surveys to estimate manatee abundance and population trend in the Ten Thousand Islands Region of southwest Florida
No abstract available.
Authors
Dean E. Easton, Lynn W. Lefebvre, T.J. Doyle
Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch
We measured sediment elevation and accretion dynamics in mangrove forests on the islands of Guanaja and Roatan, Honduras, impacted by Hurricane Mitch in 1998 to determine if collapse of underlying peat was occurring as a result of mass tree mortality. Little is known about the balance between production and decomposition of soil organic matter in the maintenance of sediment elevation of...
Authors
Donald R. Cahoon, P. Hensel, J. Rybczyk, K.L. McKee, C.E. Proffitt, B.C. Perez
Nuclear transfer of synchronized African wild cat somatic cells into enucleated domestic cat oocytes Nuclear transfer of synchronized African wild cat somatic cells into enucleated domestic cat oocytes
The African wild cat is one of the smallest wild cats and its future is threatened by hybridization with domestic cats. Nuclear transfer, a valuable tool for retaining genetic variability, offers the possibility of species continuation rather than extinction. The aim of this study was to investigate the ability of somatic cell nuclei of the African wild cat (AWC) to dedifferentiate...
Authors
M.C. Gomez, J.A. Jenkins, A. Giraldo, R.F. Harris, A. King, B.L. Dresser, C.E. Pope
Mathematical modeling relevant to closed artificial ecosystems Mathematical modeling relevant to closed artificial ecosystems
The mathematical modeling of ecosystems has contributed much to the understanding of the dynamics of such systems. Ecosystems can include not only the natural variety, but also artificial systems designed and controlled by humans. These can range from agricultural systems and activated sludge plants, down to mesocosms, microcosms, and aquaria, which may have practical or research...
Authors
D.L. DeAngelis