The Everglades is not a single swamp but a vast, slow-moving river (sheet flow) encompassing a mosaic of interconnected habitats, each with unique hydrology, flora, and fauna.
Dominant plant: Sawgrass (Cladium jamaicense), a sedge with serrated edges. Hydrology: Shallow, slow sheet flow (inches deep). Wildlife: Alligators, wading birds (herons, egrets, wood storks), apple snails, turtles, fish. The iconic "River of Grass" landscape.
Character: Deeper, faster-flowing channels within the marsh (e.g., Shark River Slough, Taylor Slough). Function: Main conveyance for water movement. Wildlife: Fish (bass, gar), turtles, alligators, otters, aquatic plants (spatterdock, bladderwort). Critical dry-season refugia.
Location: Higher, drier ground (eastern & western edges). Dominant: South Florida slash pine (Pinus elliottii var. densa) with diverse understory (palmetto, wildflowers). Fire-dependent: Requires frequent low-intensity fire. Wildlife: Red-cockaded woodpecker (endangered), Florida panther, deer, reptiles.
Location: Transition zone where freshwater meets saltwater (Florida Bay, Gulf Coast, Ten Thousand Islands). Species: Red, black, white mangroves. Function: Nursery for 75% of game fish; storm surge buffer; carbon sequestration. Wildlife: Mangrove snapper, tarpon, crocodiles, roseate spoonbills, manatees.
Character: Slightly elevated (1–3 ft) islands of tropical hardwoods (gumbo limbo, mahogany, live oak) within the marsh. Formation: Peat accumulation around a nucleus (often a bayhead). Wildlife: High biodiversity: tree snails, barred owls, bobcats, raccoons, migrating songbirds. Critical dry-season refuge.
These habitats are linked by hydrology (sheet flow), fire, and species movement. Restoration (CERP) aims to restore natural water timing, quantity, and distribution to sustain the entire mosaic.