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The ecology of Florida considers the state's two Level I and three Level II/III ecoregions containing more than 80 distinct ecosystems. [1] [2] They differ in hydrology, climate, landforms, soil types, flora, and fauna, forming a global biodiversity hotspot. [3]
The climate of Florida varies across the state due to its polar orientation and 447-mile length. From central Florida to the Georgia border, the climate is generally humid subtropical, while South Florida has a tropical climate. The end of spring to mid-fall is characterized by a significant rainy season, with hurricanes, thunderstorms, and tropical cyclones. The winter and spring are significantly drier, often resulting in brushfires and strict no-fire laws. Snowfall has been recorded in northern Florida, and hard freezes have damaged orange groves. [4]
Florida is surrounded on three sides by bodies of water: the Gulf of Mexico to the west, Florida Bay to the south, and the Atlantic Ocean to the east. In addition to its coastal habitats, Florida has a variety of wetland habitats, such as marshland, swampland, lakes, springs, and rivers. Florida's largest river is the St. Johns River. Florida's largest lake, Lake Okeechobee, flows into the Florida Everglades, [5] a two-million acre subtropical wetland. [6]
Florida is home to diverse wildlife. Over 700 species of land animals are found in the state, including bobcats, armadillos, opossums, and foxes. More than 500 species of birds have been seen in the state, and it is home to an estimated 1,500 nesting pairs of bald eagles. [7] Florida's diverse ecosystems are home to many types of insects, [8] including the Gulf fritillary, a butterfly native to Florida grasslands.
Florida's mild climate, international ports of entry, and animal and nursery trades make the state vulnerable to invasive species; those that currently pose a threat include the Burmese python, cane toad, feral pigs, and lionfish. [9] Native wildlife is also threatened by habitat loss through land being converted to agriculture and urban development. [10]
Florida's waters support more than 200 freshwater fish species. [11]
Florida has many types of forest ecosystems.
In the pre-Columbian era, forests, prairies, and the Everglades dominated Florida's landscape. Small rivers, swamps, and natural lakes and springs were ubiquitous. At the time, the area was inhabited by the Florida's indigenous tribes. These tribes led a mostly subsistence-based lifestyle, consisting of basic farming to provide enough food for one family. This way of living had minimal effects on the landscape, as most of the time only fertile areas of non-swamp land were utilized.[ citation needed ]
Over time, as the European colonization of the Americas progressed, more and more Europeans began to colonize the area. Once the technology to drain and redirect extensive areas of swampland presented itself, more settlers came to lay claims to acres of land for future development. These large influxes of people led to the mass manipulation of the Florida landscape, altering it permanently. Significant effort was made to divert, drain, or redirect water through the creation of various types of waterways like canals or manmade lakes. Settlers also began cutting down forests, and converting the lands from natural to agricultural use. This intense and highly complex manipulation of the landscape caused problems for the native species of animals living there. [15] [ clarification needed ]
Supplying water poses problems for the natural environment. Bodies of water, including lakes, ponds, and wetlands, are drained to create homes or other facilities. Water can also be redirected to address population growth or economic development, which may compete with the needs of flora and fauna. Runoff of pesticides and fertilizers from farming, industry, and households damages ecosystems. Toxic chemical runoff and byproducts from decomposing materials and foods can contaminate water supplies.
Forests offer habitats for small and large animals, insects, small organisms like bacteria and fungi that feed on decomposing tree trunks, and harbor plants. They also store carbon. Deforestation is the removal of trees to use the land for other purposes. "Florida has lost 22% of forests since 1953 (a loss of 1.6 million ha)." [16]
The effects of climate change in Florida are attributable to man-made increases in atmospheric carbon dioxide. Floridians are experiencing increased flooding due to sea level rise, and are concerned about the possibility of more frequent or more intense hurricanes. [17]
The state has been described as America's "ground zero" for climate change, global warming and sea level rise, because "the majority of its population and economy is concentrated along low-elevation oceanfront." [18] [19] [20] [21] [22]
Florida residents think climate change is happening at higher rates than the national average. As of March 2023, about two-thirds of the state believes in anthropogenic climate change, up from 55% in April 2020. [23] [24] However, the state remains politically divided: while Democrats have reached a general consensus on the issue, only half of Republicans agree and support teaching about climate change in schools. [25] Some communities in Florida have begun implementing climate change mitigation approaches; however, statewide initiatives have been hampered by the politicization of climate change in the United States, focusing on resilience rather than full scale mitigation and adaptation. [26]Introduced species from non-native environments, such as Southeast Asia and South America thrived in Florida. Local and private groups formed to combat some invasive species. [27] One example is Lygodium microphyllum . This vine can cover whole sections of a forest. The vine is native to Africa, Australia, and Southeast Asia [28]
One invasive animal species is the Cuban tree frog ( Osteopilus septentrionalis ). It hitched a ride in shipping containers. Only freezes and unusually cold winters limit their growth. They feed on native Florida tree frog populations." [29] The frog is native to areas such as Cuba, Cayman Islands, and the Bahamas.
Florida has some 33 animals and 43 plant species rated endangered.[ citation needed ] They include the Florida panther, the leatherback sea turtle, the West Indian manatee, and the red-cockaded woodpecker. Endangered plants include the bell-flower, scrub plum, Small's milk pea, and the water-willow.[ citation needed ]
The Florida panther is listed as endangered. The encroachment of highways and other man-made structures destroyed or diminished their natural habitats. They have trouble hunting the white-tailed deer, their main food, because of human disruptions. [30] The panthers had to change their migration routes and acclimate to smaller hunting and breeding grounds.[ citation needed ]
Many birds migrate between the US and South America or the Caribbean through Florida. [31] Ospreys (Pandion haliaetus) that spend summers in the eastern half of the U.S. fly through Florida to reach the Yucatán peninsula, the Caribbean islands, and South America. [32] Birds crossing the Gulf of Mexico stop in Florida to feed and rest. [33] Species such as the Red Knot (Calidris canutus rufa), winter in Florida. The Red Knot stopover on the east coast enroute to the Caribbean. [34] Migrating birds favor areas with dense hardwood forests. This habitat could indicate an abundance of resources. Protecting these forest habitats is necessary to protect these migrating birds. [33] On Florida's East Coast, habitat loss caused by sea level rise, beach erosion, and development threaten migratory routes. [34] The Migratory Bird Treaty Act made the "taking, killing, or possessing migratory birds unlawful". [35]
The Florida Department of Environmental Protection is responsible for protecting Florida's ecology. Its mission is to protect "our air, water, and land." It operates 41 programs managed as Regulatory Programs, Land and Recreation, and Water Policy and Ecosystem Restoration.[ citation needed ]
The DEP makes regulations and ensures they are followed. Besides administrative sections, an office of the Inspector General conducts audits and investigations related to environmental protection. They are supported by law enforcement and policy compliance sectors. An office for siting coordination regulates the power grid and natural gas pipelines. [36]
The DEP is responsible for state-owned land, divided into the Florida State Parks program and the Public Lands program. This includes the state park system and most Florida's beaches. Separate entities deal with programs such as trails and greenways (Florida Ecological Greenways Network), Green Lodging, and the Clean Marina program. The Front Porch Florida program helps neighborhoods retain/regain a sense of community. The Bureau of Beaches and Coastal Systems monitors Florida's beach environments and works with local initiatives and the Army Corps of Engineers to protect and restore beaches. It also is responsible for disaster response initiatives, such as the Deepwater Horizon oil spill beach cleanup efforts. [37]
Some programs from the other two categories also fall into this category, such as the Bureau of Beaches and Coastal Systems, because they deal with the restoration aspect of a larger issue. However, some programs are exclusively within this category, such as the Wastewater Program and the Everglades Restoration program. The Springs, Water, and Wetlands programs all fall into this category.[ citation needed ]
In 1998, the Office of Ecosystem Management conducted the Florida Ecological Restoration Inventory (FERI). Using information gathered from the managers of state-owned lands, they assessed the restoration needs and created a comprehensive map including the urgency of each need. This became an online database of planned, needed, and completed restoration projects. In 2000, the Bureau of Submerged Lands and Environmental Resources (SLER) was awarded a grant to update FERI and expand the database to include information from other agencies. FERI included six categories: cultural resource protection, ecological protection, exotic removal, hydrologic restoration/enhancement, upland restoration/enhancement, and wetland restoration/enhancement. The inventory's run under SLER was funded from 2001 to 2003, rendering it currently inactive and outdated. [38]
The DEP has initiated the Recovery Program, which uses ARAA federal stimulus money to fund environmental programs across the state. Diesel emission reduction received 1.7 million dollars to provide electric power at rest stops so trucks do not have to idle and to retrofit school buses to make them more environmentally friendly. The state Superfund program received $61 million to clean up hazardous waste. Leaking Underground Storage Tanks got $11.2 million to clean up "orphan" petroleum storage tanks (abandoned tanks that have no party responsible for them). $750,000 went towards local brownfield land projects. The Clean Water State Revolving Fund used $132.3 million to issue loans for communities to improve their wastewater and stormwater systems. The Drinking Water State Revolving Fund got $88.1 million to issue community loans to upgrade drinking water infrastructure.[ citation needed ]
The Everglades is a natural region of flooded grasslands in the southern portion of the U.S. state of Florida, comprising the southern half of a large drainage basin within the Neotropical realm. The system begins near Orlando with the Kissimmee River, which discharges into the vast but shallow Lake Okeechobee. Water leaving the lake in the wet season forms a slow-moving river 60 miles (97 km) wide and over 100 miles (160 km) long, flowing southward across a limestone shelf to Florida Bay at the southern end of the state. The Everglades experiences a wide range of weather patterns, from frequent flooding in the wet season to drought in the dry season. Throughout the 20th century, the Everglades suffered significant loss of habitat and environmental degradation.
Conservation in Australia is an issue of state and federal policy. Australia is one of the most biologically diverse countries in the world, with a large portion of species endemic to Australia. Preserving this wealth of biodiversity is important for future generations. 25% of Australia is managed for conservation.
Everglades National Park is a national park of the United States that protects the southern twenty percent of the original Everglades in Florida. The park is the largest tropical wilderness in the United States and the largest wilderness of any kind east of the Mississippi River. An average of one million people visit the park each year. Everglades is the third-largest national park in the contiguous United States after Death Valley and Yellowstone. UNESCO declared the Everglades & Dry Tortugas Biosphere Reserve in 1976 and listed the park as a World Heritage Site in 1979, and the Ramsar Convention included the park on its list of Wetlands of International Importance in 1987. Everglades is one of only three locations in the world to appear on all three lists.
The Kissimmee River is a river in south-central Florida, United States that forms the north part of the Everglades wetlands area. The river begins at East Lake Tohopekaliga south of Orlando, flowing south through Lake Kissimmee into the large, shallow Lake Okeechobee. Hurricane-related floods in 1947 prompted channelization of the meandering lower stretch, completed by 1970. The straightened course reduced wetland habitat and worsened pollution. In response, efforts since the 1990s have partially restored the river's original state and revitalized the ecosystem, as part of the broader restoration of the Everglades.
The Arthur R. Marshall Loxahatchee National Wildlife Refuge is a 145,188-acre (587.55 km2) wildlife sanctuary is located west of Boynton Beach, in Palm Beach County, Florida. It is also known as Water Conservation Area 1 (WCA-1). It includes the most northern remnant of the historic Everglades wetland ecosystem.
A bosque is a type of gallery forest habitat found along the riparian flood plains of streams, river banks, and lakes. It derives its name from the Spanish word for 'forest', pronounced.
Picayune Strand State Forest is one of 37 state forests in Florida managed by the Florida Forest Service. The 78,000-acre forest consists primarily of cypress swamps, wet pine flatwoods and wet prairies. It also features a grid of closed roads over part of it, left over from previous land development schemes.
Hammock is a term used in the southeastern United States for stands of trees, usually hardwood, that form an ecological island in a contrasting ecosystem. Hammocks grow on elevated areas, often just a few inches high, surrounded by wetlands that are too wet to support them. The term hammock is also applied to stands of hardwood trees growing on slopes between wetlands and drier uplands supporting a mixed or coniferous forest. Types of hammocks found in the United States include tropical hardwood hammocks, temperate hardwood hammocks, and maritime or coastal hammocks. Hammocks are also often classified as hydric, mesic or xeric. The types are not exclusive, but often grade into each other.
The Florida mangroves ecoregion, of the mangrove forest biome, comprise an ecosystem along the coasts of the Florida peninsula, and the Florida Keys. Four major species of mangrove populate the region: red mangrove, black mangrove, white mangrove, and the buttonwood. The mangroves live in the coastal zones in the more tropical southern parts of Florida; mangroves are particularly vulnerable to frosts. Mangroves are important habitat as both fish nursery and brackish water habitats for birds and other coastal species.
The environment of Florida in the United States yields an array of land and marine life in a mild subtropical climate. This environment has drawn millions of people to settle in the once rural state over the last hundred years. Florida's population increases by about 1,000 residents each day. Land development and water use have transformed the state, primarily through drainage and infill of the wetlands that once covered most of the peninsula.
The Florida Department of Environmental Protection (FDEP) is the Florida government agency responsible for environmental protection.
Colt Creek State Park is a Florida State Park in Central Florida, 16 miles (26 km) north of Lakeland off of State Road 471. This 5,067 acre park nestled within the Green Swamp Wilderness Area and named after one of the tributaries that flows through the property was opened to the public on January 20, 2007. Composed mainly of pine flatwoods, cypress domes and open pasture land, this piece of pristine wilderness is home to many animal species including the American bald eagle, Southern fox squirrel, gopher tortoise, white-tailed deer, wild turkey and bobcat.
There are a number of environmental issues in Florida. A large portion of Florida is a biologically diverse ecosystem, with large wetlands in the Everglades. Management of environmental issues related to the everglades and the larger coastal waters and wetlands have been important to the history of Florida and the development of multiple parts of the economy of Florida, including the influential agricultural industry. This biodiversity leaves much of Florida's ecological ecosystem vulnerable to invasive species and human sources of industrial pollution and waste.
Before drainage, the Everglades, a region of tropical wetlands in southern Florida, were an interwoven mesh of marshes and prairies covering 4,000 square miles (10,000 km2). The Everglades is both a vast watershed that has historically extended from Lake Okeechobee 100 miles (160 km) south to Florida Bay, and many interconnected ecosystems within a geographic boundary. It is such a unique meeting of water, land, and climate that the use of either singular or plural to refer to the Everglades is appropriate. When Marjory Stoneman Douglas wrote her definitive description of the region in 1947, she used the metaphor "River of Grass" to explain the blending of water and plant life.
An ongoing effort to remedy damage inflicted during the 20th century on the Everglades, a region of tropical wetlands in southern Florida, is the most expensive and comprehensive environmental repair attempt in history. The degradation of the Everglades became an issue in the United States in the early 1970s after a proposal to construct an airport in the Big Cypress Swamp. Studies indicated the airport would have destroyed the ecosystem in South Florida and Everglades National Park. After decades of destructive practices, both state and federal agencies are looking for ways to balance the needs of the natural environment in South Florida with urban and agricultural centers that have recently and rapidly grown in and near the Everglades.
Wetland conservation is aimed at protecting and preserving areas of land including marshes, swamps, bogs, and fens that are covered by water seasonally or permanently due to a variety of threats from both natural and anthropogenic hazards. Some examples of these hazards include habitat loss, pollution, and invasive species. Wetland vary widely in their salinity levels, climate zones, and surrounding geography and play a crucial role in maintaining biodiversity, ecosystem services, and support human communities. Wetlands cover at least six percent of the Earth and have become a focal issue for conservation due to the ecosystem services they provide. More than three billion people, around half the world's population, obtain their basic water needs from inland freshwater wetlands. They provide essential habitats for fish and various wildlife species, playing a vital role in purifying polluted waters and mitigating the damaging effects of floods and storms. Furthermore, they offer a diverse range of recreational activities, including fishing, hunting, photography, and wildlife observation.
Tropical hardwood hammocks are closed canopy forests, dominated by a diverse assemblage of evergreen and semi-deciduous tree and shrub species, mostly of West Indian origin. Tropical hardwood hammocks are found in South Florida or the Everglades, with large concentrations on the Miami Rock Ridge, in the Florida Keys, along the northern shores of Florida Bay, and in the Pinecrest region of the Big Cypress Swamp.
Los Cerritos Wetlands is located in both Los Angeles County and Orange County in the cities of Long Beach, California, and Seal Beach, California. The San Gabriel River, historically and currently flows through the Los Cerritos Wetlands Complex.
The South Florida rocklands ecoregion, in the tropical and subtropical moist broadleaf forests biome, occurs in southern Florida and the Florida Keys in the United States, where they would naturally cover an area of 2,100 km2 (810 sq mi). These forests form on limestone outcrops with very thin soil; the higher elevation separating them from other habitats such as coastal marshes and marl prairies. On mainland Florida, rocklands exist primarily on the Miami Rock Ridge, which extends from the Miami River south to Everglades National Park. South Florida rocklands are further divided into pine rocklands and rockland hammocks.
Mangrove ecosystems represent natural capital capable of producing a wide range of goods and services for coastal environments and communities and society as a whole. Some of these outputs, such as timber, are freely exchanged in formal markets. Value is determined in these markets through exchange and quantified in terms of price. Mangroves are important for aquatic life and home for many species of fish.