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The National Natural Landmarks (NNLs) in Florida include 18 of the almost 600 such landmarks in the United States. They cover areas of geological, biological and historical importance, and include springs, swamps, marshes and seashore. Several of the sites provide habitat for rare or endangered plant and animal species.
Tropical hardwood hammocks also include the more open coastal rock barren and sinkhole communities as classified by the Florida Natural Areas Inventory. [2] Coastal rock barren is a rare community occurring in tiny patches in the Florida Keys. Sinkholes are found in areas of karst limestone, primarily in hammocks on the Miami Rock Ridge.
The south Florida pine rockland is unique geographically. Southern Florida is located at the southern end of the temperate North American Floristic Region and at the northern end of the tropical Caribbean Floristic Region. [13] This location allows for the mixture of vegetation from two distinct areas at the extremes of their ranges. [14 ...
In the United States, tropical hardwood hammocks are found in southern Florida. Sub-types of hammocks in southern Florida include rockland hammocks on the Miami Rock Ridge and in the Big Cypress National Preserve, Keys rockland hammocks in the Florida Keys, coastal berm hammocks in the Florida Keys and along the north shore of Florida Bay, tree island hammocks in the Everglades, shell mound ...
Long Key Natural Area & Nature Center: Davie: Broward: South: website, operated by the County, 164.8 acres, exhibits on natural history and area Native Americans, elevated oak hammock, 14-acre orange grove, restored wetland marshes, man-made ponds and canals Lyonia Environmental Center: Deltona: Volusia: Central
In the Florida Peninsula the amount of evergreens increases and species richness decreases as northern deciduous species (American Beech, White Oak) reach their southern limits. Upland Hardwood Forest in Central Florida , at the southern end of its range (especially along the Brooksville Ridge), is often hard to differentiate from Mesic Hammock .
In places, they can form large areas of broad, shallow wetlands. [1] Hydric hammocks are found in scattered locations in Florida north of Lake Okeechobee, with concentrations along the upper St. Johns River, the Atlantic coast of northeastern Florida, and particularly along the Big Bend section of the Gulf Coast of Florida, from Aripeka to St ...
Today, nearly all mature stands of longleaf pine are gone, and only a few isolated sites still contain substantial natural habitat. In many areas, longleaf pine forests have been replaced with plantations of slash pine (Pinus elliottii), which are less biologically diverse than native habitat.