Description: Land cover and land use in the St. Johns River Water Management District based on 2013-2016 digital orthophotography. This layer is a copy of the 2009 lulc dataset, with updates based on conditions in the 2013-2016 orthophotography. The previous Photointerpretation Key was also revised and updated for this project.Source imagery is county imagery flown primarily by FDOT, at varying dates . The 2014 map used the below imagery:Year Flight Season Counties2013 (Dec 2012 –Mar 2013) Duval2014 (Dec 2013 –Mar 2014) Alachua, Baker, Bradford, Clay, Flagler, Lake, Marion, Nassau,Osceola, Polk, Putnam, St. John’s2015 (Dec 2014 –Mar 2015) Brevard, Indian River, Okeechobee, Seminole, Volusia2016 (Dec 2015 –Mar 2016) OrangeNOTE: Mapping convention made for Marion/Alachua counties. Imagery Dates: Alachua - December 2013 - January 2014; Marion - March 2014 -April 2014. Implications for land cover mapping: We experienced a wetter than average winter, and significant rain fell between Alachua and Marion flight dates. Orange Lake looked very different in areas where the two county imagery datasets overlapped (higher water levels in Marion imagery). We decided on the following mapping convention: always map according to the Marion imagery where it exists.The 2014 data is mapped to the extent of the previous update in 2009 as far as available imagery allowed. There is data to the east of Nassau County (outside our District and Water Basin boundaries) where no imagery was available. The 2014 data extends beyond its previous limit in a few small areas to fulfill an internal staff request.It continues the historical practice of mapping the portion of the Ocklawaha River Basin in Polk County that was transferred to the Southwest Florida Water Management District.NOTE: June 2018 Changes to Dataset:The 2014 dataset was modified in June 2018 based on results from an Accuracy Assessment, These edits changed net acreage counts for some classes as follows:ACREAGE INCREASES: Class 3300 +2.77 ac / Class 4200 +5.12 ac / Class 5200 +7,254.66 ac / Class 5300 +174,082.38 ac / Class 8350 +122.27 acACREAGE DECREASES: Class 1750 -16.64 ac / Class 2110 -100.00 ac / Class 4110 -3.63 ac / Class 4210 -2.00 ac / Class 5100 -181,337.04 / Class 7400 -7.90 ac
Copyright Text: This data set was compiled with input from SJRWMD project staff.
Name: Distribution and Condition of Intertidal Eastern Oyster (Crassostrea virginica) Reefs in Apalachicola Bay Florida Based on High-Resolution Satellite Imagery (5063)
Name: Florida Cooperative Land Cover (CLC) map (4029)
Display Field: NAME_SITE
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The Cooperative Land Cover Map is a project to develop an improved statewide land cover map from existing sources and expert review of aerial photography. The project is directly tied to a goal of Florida's State Wildlife Action Plan (SWAP) to represent Florida's diverse habitats in a spatially-explicit manner. The Cooperative Land Cover Map integrates 3 primary data types: 1) 6 million acres are derived from local or site-specific data sources, primarily on existing conservation lands. Most of these sources have a ground-truth or local knowledge component. We collected land cover and vegetation data from 37 existing sources. Each dataset was evaluated for consistency and quality and assigned a confidence category that determined how it was integrated into the final land cover map. 2) 1.4 million acres are derived from areas that FNAI ecologists reviewed with high resolution aerial photograpy. These areas were reviewed because other data indicated some potential for the presence of a focal community: scrub, scrubby flatwoods, sandhill, dry prairie, pine rockland, rockland hammock, upland pine or mesic flatwoods. 3) 3.2 million acres are represented by Florida Land Use Land Cover data from the FL Department of Environmental Protection and Water Management Districts (FLUCCS). The Cooperative Land Cover Map integrates data from the following years: NWFWMD: 2006 - 07 SRWMD: 2005 - 08 SJRWMD: 2004 SFWMD: 2004 SWFWMD: 2008 All data were crosswalked into the Florida Land Cover Classification System. This project was funded by a grant from FWC/Florida's Wildlife Legacy Intiative (Project 08009) to Florida Natural Areas Inventory. The current dataset is provided in 10m raster grid format. Changes from Version 1.1 to Version 2.3:CLC v2.3 includes updated Florida Land Use Land Cover for four water management districts as described above: NWFWMD, SJRWMD, SFWMD, SWFWMD CLC v2.3 incorporates major revisions to natural coastal land cover and natural communities potentially affected by sea level rise. These revisions were undertaken by FNAI as part of two projects: Re-evaluating Florida's Ecological Conservation Priorities in the Face of Sea Level Rise (funded by the Yale Mapping Framework for Biodiversity Conservation and Climate Adaptation) and Predicting and Mitigating the Effects of Sea-Level Rise and Land Use Changes on Imperiled Species and Natural communities in Florida (funded by an FWC State Wildlife Grant and The Kresge Foundation). FNAI also opportunistically revised natural communities as needed in the course of species habitat mapping work funded by the Florida Department of Environmental Protection. CLC v2.3 also includes several new site specific data sources: New or revised FNAI natural community maps for 13 conservation lands and 9 Florida Forever proposals; new Florida Park Service maps for 10 parks; Sarasota County Preserves Habitat Maps (with FNAI review); Sarasota County HCP Florida Scrub-Jay Habitat (with FNAI Review); Southwest Florida Scrub Working Group scrub polygons. Several corrections to the crosswalk of FLUCCS to FLCS were made, including review and reclassification of interior sand beaches that were originally crosswalked to beach dune, and reclassification of upland hardwood forest south of Lake Okeechobee to mesic hammock. Representation of state waters was expanded to include the NOAA Submerged Lands Act data for Florida. Changes from Version 2.3 to 3.0: CLC v3.0 now includes state wide Florida NAVTEQ transportation data. CLC v3.0 incorporates revisions to scrub, scrubby flatwoods, mesic flatwoods, and upland pine classes. Revisions were also made to sand beach, riverine sand bar, and beach dune previously misclassified as high intensity urban or extractive. An additional class, scrub mangrove – 5252, was added to the crosswalk. Mangrove swamp was reviewed and reclassified to include areas of scrub mangrove. Changes from Version 3.0 to Version 3.1: CLC v3.1 includes several new site specific data sources: Revised FNAI natural community maps for 31 WMAs, and 6 Florida Forever areas or proposals. This data was either extracted from v2.3, or from more recent mapping efforts. Domains have been removed from the attribute table, and a class name field has been added for SITE and STATE level classes. The Dry Tortugas have been reincorporated. The geographic extent has been revised for the Coastal Upland and Dry Prairie classes. Rural Open and the Extractive classes underwent a more thorough review. Changes from Version 3.1 to Version 3.2: CLC v3.2 includes several new site specific data sources: Revised FNAI natural community maps for 43 Florida Park Service lands, and 9 Florida Forever areas or proposals. This data is from 2014 - 2016 mapping efforts. SITE level class review: Wet Coniferous plantation (2450) from v2.3 has been included in v3.2. Non-Vegetated Wetland (2300), Urban Open Land (18211), Cropland/Pasture (18331), and High Pine and Scrub (1200) have undergone thorough review and reclassification where appropriate. Other classification errors were opportunistically corrected as found or as reported by users to landcovermap@myfwc.com. Changes from Version 3.2 to Version 3.2.5: CLC v3.2.5 includes several new site specific data sources: Revised FNAI natural community maps for 16 FWC managed or co-managed lands, 8 State Forests, 1 Florida Park Service managed greenway, and 1 Florida Forever proposal. This data is from 2016 - 2017 mapping efforts. SITE level class review: Pine Flatwoods and Dry Prairie (1300) reclassified to several refined Flatwood classes.
Copyright Text: Data compiled from multiple sources by Florida Fish and Wildlife Conservation Comission (FWC) and Florida Natural Areas Inventory (FNAI).
Description: Coordinate data (NAD 1983 HARN State Plane Florida East) for the 1,508 ground-truthing sites (1,000 original sites and 508 new bed edge sites) were imported into ArcGIS and overlaid on top of a copied shapefile of the 2007 seagrass polygons. The first adjustment to the 2007 seagrass polygons was extension of the seagrass bed edges in areas where seagrass had expanded waterward of the 2007 edge, and there were a sufficient number of ground-truthing sites for extrapolation of bed edge expansion (“b” sites). Seagrass bed edge expansion was limited to the distance of the survey transect (30 m). Once polygons were adjusted for areas of seagrass expansion, several polygons were then split based on the Braun-Blanquet (BB) cover scores of the 2013 ground-truthing sites within the polygon. At locations where the seagrass bed had retreated from the 2007 edge (“a” sites), polygons were split to remove the unvegetated areas from the areas where seagrass was observed only if a sufficient number of ground-truthing sites were sampled in the polygon to suggest complete loss of seagrass cover in the area. Additionally, polygons were split to separate areas with different BB cover scores. If water depth appeared to be the controlling factor in seagrass occurrence within a specific polygon, the polygon was split along a consistent depth contour of seagrass cover and/or occurrence using the 2002-2003 bathymetry merge contour provided by PBCERM. Bathymetry contours used to split polygons were dependent upon seagrass cover scores at the 2013 ground-truthing sites; other factors, such as sediment type, Secchi depth readings, qualitative transect notes, were also used to determine the most appropriate depth contour line for splitting seagrass cover within polygons. Note: Zero (0) values within the attribute fields (Alias names) 'DEPTH_ft', 'DEPTH_TIDECORR', 'DEPTH MLLW', DEPTH_NAVD88', 'NAVD_NOAA', 'VISIBILITY', ‘SECCHI_1’, ‘SECCHI_2’, ‘AVG_SECCHI’, ‘SALINITY_ppt’, and ‘TEMP’ are not true values of zero. Zero values within these fields represent sites where this data was unavailable. The zero values within these fields were not used in calculating averages for associated polygons in the 2013 Ground-truthing map.For a complete description of 2013 seagrass ground-truthing and map creation methods and results, refer to the associated ‘2013 Lake Worth Lagoon Seagrass Mapping Report’ (CEG, 2014).
Copyright Text: Seagrass bed ground-truthing field verification, data collection, and map development were completed from July 2, 2013 to January 10, 2014 by Coastal Eco-Group Inc. Work was performed through a sub-contract agreement with Coast and Harbor Engineering Inc. for Palm Beach County Department of Environmental Resource Management.
Description: During the summer 2010, the Loxahatchee River District quantified species-specific seagrass coverage within the Loxahatchee River Estuary, Palm Beach County, Florida. Sample points were selected using a modified random stratified design with presence/absence scores measured within a portable 9m2grid. Seagrass species were scored 1-9 for occurrence in each 1m2 of the 9 observed. Data also included visual seagrass density, water depth, coordinate location, sediment type and depth of muck 1,667 discreet points were sampled. All data were recorded with a sub-meter accurate GPS.
Copyright Text: Loxahatchee River District, WildPine Ecological Laboratory, Albrey Arrington, Bud Howard, Lorene Bachman, David Sabin, Sue Noel, David Porter, Jerry Metz
Description: This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.
Name: Oyster shell heights and taxonomic diversity in 2015-2017 among previously documented oiled and non-oiled reefs in Louisiana, Alabama and the Florida Panhandle (5071)
Name: Prehistoric baseline reveals substantial decline of oyster reef condition in a Gulf of Mexico conservation priority area - modern oyster data (5070)
Name: Prehistoric baseline reveals substantial decline of oyster reef condition in a Gulf of Mexico conservation priority area - archaeological oyster data (5072)
Description: Habitat polygons were hand digitized using extensive field data, 2009 and 2010 aerial imagery, and 2007 LiDAR data. A screen viewing scale of 1:3000 to 1:5000 was used to delineate the land features on the imagery. The gaps and polygons that are less than the NERR minimum mapping unit (MMU) of 0.1 ha are the result of the digitizing process. The aerial imagery was provided by the Collier County Property Appraiser. The 2009 aerials were flown December 29, 2008 - January 18, 2009 and had 6 inch resolution in the urban areas and 2 ft resolution in the rural area. The 2010 aerials were flown only in the urban areas (which covered the northern portion of the Reserve) on December 29, 2009 and January 2, 2010 with 6 inch resolution.Habitats were mapped according to the Comprehensive Everglades Restoration Plan (CERP) codes
Copyright Text: Institute for Regional Conservation
Rookery Bay National Estuarine Research Reserve
Description: The Rookery Bay National Estuarine Research Reserve (RBNERR) received a grant for a three-year project to help local communities manage freshwater flows in the Rookery Bay Estuary. In an effort to understand changes to the Rookery Bay estuary, Scheda Ecological Associates, Inc. (Scheda) scientists performed a literature review and an analysis of available historic aerial imagery to assess the potential of documenting changes in estuarine habitats over time. Photo interpretation of a series of aerials can be an effective means to assesschanges in habitat types. This process includes visual review of habitats; SAV, oyster beds, and hard bottom communities, based on visual “signatures”in the photographs. During this process, it was noted that there had never been aerial photography specifically flown to identify submerged aquatic resources within the Rookery Bay Estuary. The project team decided to acquire high definition, geo-referenced aerial photography that would provide baseline data and could then be utilized to detect changes within the natural community. By comparing the results of the baseline mapping data to future mapping efforts, a trend analysis of the benthic habitats can be produced. This trend analysis map can then be used to gauge changes in response to future river flow alterations over time.
Copyright Text: Photo Science, Inc. (Quantum Spatial), Scheda Ecological Associates, Inc.
Description: The Unified Reef Map is a regional map of benthic habitats that occur throughout the Florida reef tract. The Unified Reef Map consists of individual maps and monitoring data provided by our numerous partners. The purpose of the Unified Reef Map is to provide a comprehensive view of habitats from Martin County through the Florida Keys to the Dry Tortugas. The Unified Reef Map supports the larger effort to coordinate scientific research and promote a reef-wide approach for protecting Florida’s reef tract. To create the URM, individual maps are integrated, data are edited where overlapping or neighboring maps disagree, and habitat classes are cross-walked to allow comparisons between maps. The URM symbolizes benthic habitats, or bottom types, using the Unified Classification (UC) system. The UC framework allows translation between different classification schemes while retaining the original detailed information provided by our mapping partners. There are five hierarchical UC classes starting at UC Level 0 which represents broad habitat classes and can be consistently translated between individual maps. At the most detailed UC Level 4, benthic habitats are described differently between map providers and may differ throughout the Unified Reef Map. The UC system is also cross-walked to the Coastal and Marine Ecological Classification Standard (CMECS). Un-edited source maps provided by URM map partners are also available. The Unified Reef Map is a living map and will be updated as new data become available. Version 2.0 released January 2017. For more information visit: http://ocean.floridamarine.org/IntegratedReefMap/UnifiedReefTract.htm
Copyright Text: This project was made possible by the contribution of data and expertise from partners and funded by NOAA's Office of Ocean and Coastal Resource Management in partnership with the Florida Department of Environmental Protection's Coastal Management Program. See project metadata for individual source map credits.