Publications
Explore WARC's science publications.
Filter Total Items: 3504
SEAWAT Version 4: A Computer Program for Simulation of Multi-Species Solute and Heat Transport SEAWAT Version 4: A Computer Program for Simulation of Multi-Species Solute and Heat Transport
The SEAWAT program is a coupled version of MODFLOW and MT3DMS designed to simulate three-dimensional, variable-density, saturated ground-water flow. Flexible equations were added to the program to allow fluid density to be calculated as a function of one or more MT3DMS species. Fluid density may also be calculated as a function of fluid pressure. The effect of fluid viscosity variations...
Authors
Christian D. Langevin, Daniel T. Thorne, Alyssa M. Dausman, Michael C. Sukop, Weixing Guo
Retrospective Review of Watershed Characteristics and a Framework for Future Research in the Sarasota Bay Watershed, Florida Retrospective Review of Watershed Characteristics and a Framework for Future Research in the Sarasota Bay Watershed, Florida
The U.S. Geological Survey, in cooperation with the Sarasota Bay Estuary Program conducted a retrospective review of characteristics of the Sarasota Bay watershed in west-central Florida. This report describes watershed characteristics, surface- and ground-water processes, and the environmental setting of the Sarasota Bay watershed. Population growth during the last 50 years is...
Authors
George R. Kish, Arnell S. Harrison, Mark Alderson
Persistent near-bottom aggregations of mesopelagic animals along the North Carolina and Virginia continental slopes Persistent near-bottom aggregations of mesopelagic animals along the North Carolina and Virginia continental slopes
Submersible observations during four missions over the North Carolina and Virginia continental slopes (184–900 m) documented the occurrence of large aggregations of mesopelagic fishes and macronektonic invertebrates near or on the bottom. Aggregated mesopelagics formed a layer up to tens of meters deep positioned from a few centimeters to 20 m, usually
Authors
John V. Gartner, Kenneth J. Sulak, Steve W. Ross, Ann Marie Necaise
Megadeltas and climate change Megadeltas and climate change
No abstract available
Authors
Virginia Burkett
Advances and limitations of individual-based models to analyze and predict dynamics of mangrove forests: A review Advances and limitations of individual-based models to analyze and predict dynamics of mangrove forests: A review
Mangrove ecosystems are considered vulnerable to climate change as coastal development limits the ecosystem services and adaptations important to their survival. Although they appear rather simple in terms of species diversity, their ecology is complex due to interacting geophysical forces of tides, surface runoff, river and groundwater discharge, waves, and constituents of sediment...
Authors
Uta Berger, Victor H. Rivera-Monroy, Thomas W. Doyle, Farid Dahdouh-Guebas, N.C. Duke, Martha L. Fontalvo-Herazo, Hanno Hildenbrandt, Nico Koedam, Ulf Mehlig, Cyril Piou, Robert R. Twilley
Environmental drivers in mangrove establishment and early development: A review Environmental drivers in mangrove establishment and early development: A review
Mangroves have a global distribution within coastal tropical and subtropical climates, and have even expanded to some temperate locales. Where they do occur, mangroves provide a plethora of goods and services, ranging from coastal protection from storms and erosion to direct income for human societies. The mangrove literature has become rather voluminous, prompting many subdisciplines...
Authors
K. W. Krauss, Catherine E. Lovelock, Karen L. McKee, Laura Lopez Hoffman, M. Ewe, Wayne P. Sousa
Ecology of coral reefs in the US Virgin Islands Ecology of coral reefs in the US Virgin Islands
The US Virgin Islands (USVI ) in the northeastern Caribbean, consist of St. Croix (207 km2), St. Thomas (83 km2), St. John (52 km2) and numerous smaller islands (Dammann and Nellis 1992). They are part of the Lesser Antilles and Leeward Islands on the eastern boundary of the Caribbean plate (Fig. 8.1). An extensive platform underlies St. Thomas and St. John and connects these islands to...
Authors
Caroline S. Rogers, Jeff Miller, Erinn Muller, Peter J Edmunds, Richard S. Nemeth, James P. Beets, Alan M. Friedlander, Tyler B. Smith, Rafe Boulon, Christopher F.G. Jeffrey, Charles Menza, Chris Caldow, Nasseer Idrisi, Barbara Kojis, Mark E. Monaco, Anthony S. Spitzack, Elizabeth H. Gladfelter, John C. Ogden, Zandy M Hillis-Star, Ian Lundgren, William B. Schill, Ilsa B. Kuffner, Laurie L. Richardson, Barry E. Devine, Joshua D. Voss
Structural equation modeling for observational studies Structural equation modeling for observational studies
Structural equation modeling (SEM) represents a framework for developing and evaluating complex hypotheses about systems. This method of data analysis differs from conventional univariate and multivariate approaches familiar to most biologists in several ways. First, SEMs are multiequational and capable of representing a wide array of complex hypotheses about how system components...
Authors
J.B. Grace
Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA
Diamondback Terrapins (Malaclemys terrapin) are distributed in brackish water habitats along the U.S. east coast from Massachusetts to Texas, but many populations may be in decline. Whereas ample morphological, behavioral, and reproductive information has been collected for terrapins living in temperate salt marsh habitats, comparatively little is known about mangrove terrapins. To...
Authors
K.M. Hart, C.C. McIvor
Where temperate meets tropical: Multi-factorial effects of elevated CO2, nitrogen enrichment, and competition on a mangrove-salt marsh community Where temperate meets tropical: Multi-factorial effects of elevated CO2, nitrogen enrichment, and competition on a mangrove-salt marsh community
Our understanding of how elevated CO2 and interactions with other factors will affect coastal plant communities is limited. Such information is particularly needed for transitional communities where major vegetation types converge. Tropical mangroves (Avicennia germinans) intergrade with temperate salt marshes (Spartina alterniflora) in the northern Gulf of Mexico, and this transitional...
Authors
K.L. McKee, J.E. Rooth
Conservation: saving Florida's manatees Conservation: saving Florida's manatees
Robert K. Bonde of the U.S. Geological Survey writes about the protected population of manatees in Crystal River, Florida, including information about the threats they face as they migrate in and out of protected waters. Photographer Carol Grant shares images of "Angel," a newborn manatee she photographed early one winter morning.
Authors
Robert K. Bonde
Porewater biogeochemistry and soil metabolism in dwarf red mangrove habitats (Twin Cays, Belize) Porewater biogeochemistry and soil metabolism in dwarf red mangrove habitats (Twin Cays, Belize)
Seasonal variability in biogeochemical signatures was used to elucidate the dominant pathways of soil microbial metabolism and elemental cycling in an oligotrophic mangrove system. Three interior dwarf mangrove habitats (Twin Cays, Belize) where surface soils were overlain by microbial mats were sampled during wet and dry periods of the year. Porewater equilibration meters and standard
Authors
R.Y. Lee, W.P. Porubsky, Ilka C. Feller, K.L. McKee, S.B. Joye