Thomas W. Doyle Robert R. Twilley 2005 model http://sofia.usgs.gov/projects/atlss/landveg This project provides an integrated suite of vegetation and nutrient resource models of the land-margin ecosystem compatible with and undergirding other restoration models of hydrology and higher trophic levels identified as critical. This modeling project fills the gaps and needs of existing restoration models, ELM and ATLSS, for a vegetation and nutrient dynamics component and complements continuing empirical studies within the land-margin ecosystem of the Everglades restoration program. The proposed work has eight major objectives: 1. Re-measurement and analysis of mangrove permanent plots 10 years after the passage of Hurricane Andrew to verify forest structure models (SELVA-MANGRO) and to re-calibrate output accordingly. 2. Map historic marsh-mangrove ecotone boundaries in selected southwest Florida regions. 3. Survey land/water datums across the intertidal and develop tidal ebb/flow synoptic functions for incorporation into SELVA-MANGRO. 4. Site quality characterization across the mangrove landscape using ground surveys and research studies, aerial photography, and aerial videography. 5. Develop external SELVA-MANGRO model linkages and WEB-based access to SELVA-MANGRO for Everglades restoration evaluations. 6. Verify HYMAN (hydrology), NUMAN (nutrient/organic matter decomposition), and FORMAN (forest structure/primary productivity) unit ecological simulation models with application to Everglades restoration evaluations. 7. Link SALSA (Hydrology BOX model) to HYMAN and FORMAN models to develop a better link between vegetation response and hydrological fluxes to the Everglades system. 8. Conduct field and greenhouse studies on nutrient biogeochemistry and determine the effects of nutrients and hydroperiod on forest biomass allocation and soil formation. Land-margin ecosystems (mangrove forests, brackish marshes, and coastal lakes) comprise some 40% of Everglades National Park. They support the important detrital foodwebs, fisheries, and wading bird colonies of the coastal zone. These systems are at the receiving end for the water management decisions made upstream which will impact the spatial distribution, timing, and quantity of freshwater flow. Additional factors which are important include disturbance history related to hurricanes and potential effects of projected sea-level rise. This project integrates the suite of spatial simulation models necessary to evaluate the response of land-margin ecosystems to upstream water management. Included are algorithms and databases of critical processes and spatio-temporal relations operating at the landscape, stand-level, and soil interface. These process and modeling studies are critical to the extended applications of the ATLSS and ELM modeling programs into the land-margin ecosystems of the Everglades. 20001215 20051230 ground condition In Work As needed -81.30333 -80.262125 25.847113 25.125 none biology hydrology model ATLSS Across Trophic Levels System Simulation nutrients mangroves mangrove ecotone ISO 19115 Topic Category biota inlandWaters 002 012 environment 007 Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, DC, National Institute of Standards and Technology United States US U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, DC, NIST Florida FL Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology Miami-Dade County Monroe County USGS Geographic Names Information System Shark River Slough Taylor Slough none South East Coast SW Big Cypress none none Thomas W. Doyle U.S. Geological Survey mailing address

National Wetlands Research Center 700 Cajundome Blvd.

Lafayette LA 70506 USA 337 266-8647 337 266-8592 tom_doyle@usgs.gov Other project personnel include Victor H. Rivera-Monroy and Ken Krauss. Chen, R. Twilley, R. R. 1998 report Journal of Ecology v. 86 London, England, UK British Ecological Society Chen, R. Twilley, R. R. 1999 report Biogeochemistry v. 44 no. 1 Dordrecht, Netherlands Kluwer Academic Press Doyle, T. W. Smith, T. J. III, Robblee, M. B. 1995 report Journal of Coastal Research v. 18 Royal Palm Beach, FL Coastal Education and Research Foundation (CERF) Doyle, T. W. Girod, G. F. 1997 book chapter Heidelburg, Germany Springer-Verlag in Hurricanes: Climate and Socioeconomic Impacts H. F. Diaz and R. S. Pulwarty, editors Twilley, R. R. 1997 book chapter Boca Raton, FL CRC Press in Southern Forested Wetlands M. Messina and W. Connor, editors Twilley, R. R. 1995 book chapter Boulder, CO University of Colorado Press in Maximum Power C. Hall, editor Chen, R. Twilley, R. R. 1999 report Estuaries v. 22 Port Republic, MD Estuaries Research Federation unavailable unavailable This project provides an integrated suite of vegetation and nutrient resource models of the land-margin ecosystem compatible with and undergirding other restoration models of hydrology and higher trophic levels identified as critical by the South Florida Restoration Taskforce. Spatial forest simulation models (Doyle 1997, Doyle and Girod 1997) and ecological and nutrient models (Chen and Twilley 1998, Chen and Twilley 1999) have been developed for south Florida mangrove communities 2002 SELVA-MANGRO Upgrades of the Land-Margin Simulation Model of South Florida: Pattern and Process of Landscape/Stand Level Interactions Work planned for FY 2003 includes: A large percentage of the work conducted during the remainder of 2001 and into 2002 involves computer programming tasks aimed at increasing the functionality and user friendliness of SELVA-MANGRO. Current efforts are focused on model programming upgrades to the newest version of C++, formatting and serving SELVA-MANGRO on an internally housed WEB server, and verification of model simulations from Everglades mangrove field data summaries. During this year, we also expect to advance our ecotone mapping efforts considerably. This will include mosaicing 1952 and 1992 aerial photos from selected regions, digitizing ecotone boundaries, and conducting area change analysis. In order to link forest structural attributes to proposed changes in hydrology, we have installed a series of productivity studies (using mangrove dendrometry as a proxy for growth) along a hydroperiod continuum in southwest Florida that we plan to monitor throughout the next year and beyond. Monitoring will include measurements of growth, porewater salinity, and hydroperiod. Each site has a waterlevel recorder within the mangrove forest that is downloaded quarterly. We also plan to install several field ecophysiological investigations in an attempt to relate flooding effects to a mature tree physiological mechanism (i.e., xylem sap flow) and response, which will create a necessary hydroperiod link to forest stand evaportranspirational and growth characteristics. Seedling growth and physiological characteristics will be measured in greenhouse experiments already underway. Parameters will include biomass partitioning, transpiration, and photosynthetic carbon assimilation. Not complete Thomas W. Doyle U.S. Geological Survey mailing address

National Wetlands Research Center 700 Cajundome Blvd.

Lafayette LA 70506 USA 337 266-8647 337 266-8592 tom_doyle@usgs.gov The Utility of Mangrove Unit Models (FORMAN, NUMAN, HYMAN) in Support of the Comprehensive Everglades Restoration Plan After building a user-friendly C++ interface for each of the NUMAN (organic matter decomposition), FORMAN (primary productivity), and HYMAN (hydrology) models during May to August 2002, we will focus our efforts on connecting all these models within a general mangrove model (MANGAL). We are planning to make the MANGAL model locally available (C++ platform), although will be exploring the possibility of internet-based access similar to the SELVA-MANGRO model (Task 1). We will be developing new interactions among the three sub-models and validating parameters based on information gathered during ongoing field studies in the Shark and Taylor River Sloughs. Field studies to calibrate MANGAL will include measuring mangrove primary productivity (monthly litter fall collections), fine root production (ingrowth cores), sedimentation rates (lead and cesium isotopes), soil and pore water nutrient concentrations, and hydroperiod. These studies are also part of the LTER project (2000-2003) coordinated by Florida International University. Given the importance of hydrology as a major component of the restoration plan for the Everglades region, we will continue our efforts to develop box models. These box models are useful to evaluate changes in salinity and hydroperiod as freshwater flow is modified upstream. We will continue validating a box model for the Shark River (SALSA) using data collected during dry and rainy conditions from 2001-2003, and building a similar model for Taylor River Slough. For the Taylor River Slough box model, we will be collaborating with Dr. W. K. Nuttle (Cadmus Group) and Dr. Chris Madden (SFWMD). We will also continue greenhouse experiments testing the effects of salinity, water level, nitrogen concentrations, and phosphorous concentrations on seedling growth rates for Laguncularia racemosa, Rhizophora mangle, and Avicennia germinans. These experiments will provide growth functions for the productivity module (FORMAN) of the MANGAL model. In addition, we will be continuing our field studies of mangrove forest structure to determine succession patterns along the Shark and Taylor Rivers to verify FORMAN and MANGAL model outputs. Conceptual models of mangrove successional patterns are critical in selecting performance measures for the “Mangrove” component of the RECOVER monitoring and assessment program. Not complete Robert R. Twilley Department of Biology, University of Louisiana at Lafayette mailing address

P.O. Box 42451

lafayette LA 70504-2451 USA 337 482-6146 337 482-5834 rrt4630@louisiana.edu land-margin ecosystems in southwest Florida Thomas W. Doyle U.S. Geological Survey mailing address

National Wetlands Research Center 700 Cajundome Blvd.

Lafayette LA 70506 USA 337 266-8647 337 266-8592 tom_doyle@usgs.gov mangrove modeling data The data have no implied or explicit guarantees. Contact Thomas Doyle for information about data and modeling software from this project. none 20070806 Heather Henkel U.S. Geological Survey mailing and physical address

600 Fourth Street South

St. Petersburg FL 33701 USA 727 803-8747 ext 3028 727 803-2030 sofia-metadata@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998