Publications
Explore WARC's science publications.
Filter Total Items: 3377
Analysis of change in marsh types of coastal Louisiana, 1978-2001
Scientists and geographers have provided multiple datasets and maps to document temporal changes in vegetation types and land-water relationships in coastal Louisiana. Although these maps provide useful historical information, technological limitations prevented these and other mapping efforts from providing sufficiently detailed calculations of areal changes and shifts in habitat coverage. The cu
Authors
Robert G. Linscombe, Stephen B. Hartley
Effects of herbivory and flooding on reforestation of baldcypress (Taxodium distichum [L.]) saplings planted in Caddo Lake, Texas
The effects of herbivory and flooding were examined on survival and growth of planted baldcypress (Taxodium distichum (L.) Rich.) saplings at three sites in Caddo Lake, TX, over a 4-yr period. There were two flood regimes (shallow periodic and deep continuous), where half of the saplings in each flood regime were protected by tree shelters to prevent herbivory. By the end of the first year, over 8
Authors
Bobby D. Keeland, Rassa O. Dale, Roy Darville, John W. McCoy
Evaluation of adrenocortical function in Florida manatees (Trichechus manatus latirostris)
The study objectives were to determine the predominant manatee glucocorticoid; validate assays to measure this glucocorticoid and adrenocorticotropic hormone (ACTH); determine diagnostic thresholds to distinguish physiological vs. pathological concentrations; identify differences associated with sex, age class, female reproductive status, capture time, and lactate; and determine the best methods f
Authors
K.M. Tripp, J.P. Verstegen, C. Deutsch, Robert K. Bonde, M. de Wit, Charles A. Manire, J. Gaspard, K.E. Harr
Tampa Bay
Tampa Bay is Florida’s largest open-water estuary and encompasses an area of approximately 1036 km2 (400 mi2) (Burgan and Engle, 2006; TBNEP, 2006). The Bay’s watershed drains 5,698 km2 (2,200 mi2) of land and includes freshwater from the Hillsborough River to the north east, the Alafia and Little Manatee rivers to the east, and the Manatee River to the south (Figure 1). Freshwater inflow also ent
Authors
Lawrence R. Handley, Kathryn Spear, Lindsay Cross, René Baumstark, Ryan Moyer, Cindy A. Thatcher
Fish as major carbonate mud producers and missing components of the tropical carbonate factory
Carbonate mud is a major constituent of recent marine carbonate sediments and of ancient limestones, which contain unique records of changes in ocean chemistry and climate shifts in the geological past. However, the origin of carbonate mud is controversial and often problematic to resolve. Here we show that tropical marine fish produce and excrete various forms of precipitated (nonskeletal) calciu
Authors
C.T. Perry, M.A. Salter, A.R. Harborne, S.F. Crowley, Howard L. Jelks, R.W. Wilson
Effect of cryopreservation and in vitro culture of bovine fibroblasts on histone acetylation levels and in vitro development of hand-made cloned embryos
In this study, the relative acetylation levels of histone 3 in lysine 9 (H3K9ac) in cultured and cryopreserved bovine fibroblasts was measured and we determined the influence of the epigenetic status of three cultured (C1, C2 and C3) donor cell lines on the in vitro development of reconstructed bovine embryos. Results showed that cryopreservation did not alter the overall acetylation levels of H3K
Authors
L. Chacon, M.C. Gomez, J.A. Jenkins, S.P. Leibo, G. Wirtu, B.L. Dresser, C.E. Pope
Early detection and rapid response
Prevention is the first line of defense against introduced invasive species - it is always preferable to prevent the introduction of new invaders into a region or country. However, it is not always possible to detect all alien hitchhikers imported in cargo, or to predict with any degree of certainty which introduced species will become invasive over time. Fortunately, the majority of introduced pl
Authors
Randy G. Westbrooks, Robert E. Eplee
Infectious disease and quality assurance considerations for the transfer of cryopreserved fish gametes
No abstract available.
Authors
Jill A. Jenkins
New aerial survey and hierarchical model to estimate manatee abundance
Monitoring the response of endangered and protected species to hydrological restoration is a major component of the adaptive management framework of the Comprehensive Everglades Restoration Plan. The endangered Florida manatee (Trichechus manatus latirostris) lives at the marine-freshwater interface in southwest Florida and is likely to be affected by hydrologic restoration. To provide managers wi
Authors
Catherine A. Langtimm, Robert Dorazio, B.M. Stith, T.J. Doyle
Biophysical controls on accretion and elevation change in Caribbean mangrove ecosystems
Habitat stability of coastal ecosystems, such as marshes and mangroves, depends on maintenance of soil elevations relative to sea level. Many such systems are characterized by limited mineral sedimentation and/or rapid subsidence and are consequently dependent upon accumulation of organic matter to maintain elevations. However, little field information exists regarding the contribution of specific
Authors
Karen L. McKee
The effect of travel loss on evolutionarily stable distributions of populations in space
A key assumption of the ideal free distribution (IFD) is that there are no costs in moving between habitat patches. However, because many populations exhibit more or less continuous population movement between patches and traveling cost is a frequent factor, it is important to determine the effects of costs on expected population movement patterns and spatial distributions. We consider a food chai
Authors
Donald L. DeAngelis, G.S.K. Wolkowicz, Y. Lou, Y. Jiang, M. Novak, R. Svanback, M.S. Araujo, Y.S. Jo, E.A. Cleary
Monitoring duration and extent of storm-surge and flooding in Western Coastal Louisiana marshes with Envisat ASAR data
Inundation maps of coastal marshes in western Louisiana were created with multitemporal Envisat Advanced Synthetic Aperture (ASAR) scenes collected before and during the three months after Hurricane Rita landfall in September 2005. Corroborated by inland water-levels, 7 days after landfall, 48% of coastal estuarine and palustrine marshes remained inundated by storm-surge waters. Forty-five days af
Authors
Elijah Ramsey, Zhong Lu, Yukihiro Suzuoki, Amina Rangoonwala, Dirk Werle