A peninsula is a landform that extends from a mainland and is surrounded by water on most sides. Peninsulas exist on each continent. The largest peninsula in the world is the Arabian Peninsula .
31-585: The Fleurieu Peninsula ( / ˈ f l ɜːr i oʊ / ) is a peninsula in the Australian state of South Australia located south of the state capital of Adelaide . Before British colonisation of South Australia , the western side of the peninsula was occupied by the Kaurna people , while several clans of the Ngarrindjeri lived on the eastern side. The people were sustained by the flora and fauna of
62-469: A basin . This may create peninsulas, and occurred for example in the Keweenaw Peninsula . In the case of formation from meltwater, melting glaciers deposit sediment and form moraines , which act as dams for the meltwater. This may create bodies of water that surround the land, forming peninsulas. If deposition formed the peninsula, the peninsula was composed of sedimentary rock , which
93-583: A classic example of wetland loss from these combined factors. Europe has likely lost nearly half its wetlands. New Zealand lost 90 percent of its wetlands over a period of 150 years. Ecologists recognize that swamps provide ecological services including flood control, fish production, water purification, carbon storage, and wildlife habitats. In many parts of the world authorities protect swamps. In parts of Europe and North America, swamp restoration projects are becoming widespread. The United States government began enforcing stricter laws and management programs in
124-408: A variety of sources including precipitation, groundwater, tides and/or freshwater flooding. These hydrologic pathways all contribute to how energy and nutrients flow in and out of the ecosystem. As water flows through the swamp, nutrients, sediment and pollutants are naturally filtered out. Chemicals like phosphorus and nitrogen that end up in waterways get absorbed and used by the aquatic plants within
155-401: A very low property value compared to fields, prairies , or woodlands . They have a reputation for being unproductive land that cannot easily be utilized for human activities, other than hunting , trapping , or fishing. Farmers, for example, typically drained swamps next to their fields so as to gain more land usable for planting crops, both historically, and to a lesser extent, presently. On
186-638: Is a large swamp in the western Siberia area of the Russian Federation . This is one of the largest swamps in the world, covering an area larger than Switzerland . The Atchafalaya Swamp at the lower end of the Mississippi River is the largest swamp in the United States . It is an important example of the southern cypress swamp but it has been greatly altered by logging, drainage, and levee construction. Other famous swamps in
217-979: The boreal regions of Canada, the word swamp is colloquially used for what is more formally termed a bog , fen , or muskeg . Some of the world's largest swamps are found along major rivers such as the Amazon , the Mississippi , and the Congo . Swamps and marshes are specific types of wetlands that form along waterbodies containing rich, hydric soils. Marshes are wetlands, continually or frequently flooded by nearby running bodies of water, that are dominated by emergent soft-stem vegetation and herbaceous plants. Swamps are wetlands consisting of saturated soils or standing water and are dominated by water-tolerant woody vegetation such as shrubs, bushes, and trees. Swamps are characterized by their saturated soils and slow-moving waters. The water that accumulates in swamps comes from
248-572: The 16th century. A peninsula is generally defined as a piece of land surrounded on most sides by water. A peninsula may be bordered by more than one body of water, and the body of water does not have to be an ocean or a sea. A piece of land on a very tight river bend or one between two rivers is sometimes said to form a peninsula, for example in the New Barbadoes Neck in New Jersey , United States. A peninsula may be connected to
279-549: The 1970s in efforts to protect and restore these ecosystems. Often the simplest steps to restoring swamps involve plugging drainage ditches and removing levees . Conservationists work to preserve swamps such as those in northwest Indiana in the United States Midwest that were preserved as part of the Indiana Dunes . Swamps can be found on all continents except Antarctica . The largest swamp in
310-601: The Council of the Royal Geographical Society of South Australia , which recommended to the state government that the unnamed peninsula terminating in Cape Jervis be given the name Fleurieu Peninsula "in honour of one who is worthy to be remembered in the annals of Australian geography". The government approved the name later that year. The Geographical Names Advisory Committee advised in 2001 that
341-696: The Fleurieu Peninsula swamps at Yundi , which is about 40 kilometres (25 mi) south of Adelaide. The Yundi Nature Conservancy, containing about 5 hectares (12 acres) of swamp, is south-east of McLaren Vale , near Mount Compass . There, Ngarrindjeri elders and scientists from various disciplines share their knowledge and plan for rewilding some more of the peninsula. A seed bank has been created to this end. Peninsula The word peninsula derives from Latin paeninsula , from paene 'almost' and insula 'island'. The word entered English in
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#1732772372079372-719: The United States are the forested portions of the Everglades , Okefenokee Swamp , Barley Barber Swamp , Great Cypress Swamp and the Great Dismal Swamp . The Okefenokee is located in extreme southeastern Georgia and extends slightly into northeastern Florida . The Great Cypress Swamp is mostly in Delaware , but extends into Maryland on the Delmarva Peninsula . Point Lookout State Park on
403-499: The case of Florida , continental drift, marine sediment, and marine transgressions were all contributing factors to its shape. In the case of formation from glaciers (e.g., the Antarctic Peninsula or Cape Cod ), peninsulas can be created due to glacial erosion , meltwater or deposition . If erosion formed the peninsula, softer and harder rocks were present, and since the glacier only erodes softer rock, it formed
434-600: The coasts of East Sumatra, Kalimantan (Central, East, South and West Kalimantan provinces), West Papua, Papua New Guinea, Brunei, Peninsular Malaya, Sabah, Sarawak, Southeast Thailand, and the Philippines (Riley et al. ,1996). Indonesia has the largest area of tropical peatland. Of the total 440,000 km (170,000 sq mi) tropical peat swamp, about 210,000 km (81,000 sq mi) are located in Indonesia (Page, 2001; Wahyunto, 2006). The Vasyugan Swamp
465-511: The extent of the peninsula is: that portion of land between Gulf St. Vincent and the Southern Ocean (sic) , a line from Aldinga (sic) (southern end of Aldinga Bay ) to Middleton (eastern end) being the cut-off for the peninsula. This boundary has not to be gazetted at present, and is intended to be the extent of the geographic feature only and is not to be applied to any industry or interest group regional identification. The coast of
496-531: The mainland via an isthmus , for example, in the Isthmus of Corinth which connects to the Peloponnese peninsula. Peninsulas can be formed from continental drift , glacial erosion , glacial meltwater , glacial deposition , marine sediment , marine transgressions , volcanoes, divergent boundaries or river sedimentation. More than one factor may play into the formation of a peninsula. For example, in
527-556: The native orchid ( leek orchid ), guinea flower and swamp wattle (Wirilda). The swamps of the Fleurieu Peninsula were listed as critically endangered under the EPBC Act in 2003; however, there is no adopted or made recovery plan for this ecological community, only "Approved Conservation Advice" (2013). Less than four percent of the original swampland remain today. A group that includes Aboriginal elders and scientists are as of 2021 documenting Aboriginal cultural knowledge for
558-487: The other hand, swamps can (and do) play a beneficial ecological role in the overall functions of the natural environment and provide a variety of resources that many species depend on. Swamps and other wetlands have shown to be a natural form of flood management and defense against flooding. In such circumstances where flooding does occur, swamps absorb and use the excess water within the wetland, preventing it from traveling and flooding surrounding areas. Dense vegetation within
589-399: The peninsula stretches from around 140 kilometres (87 mi) from Sellicks Beach in the north to Middleton in the south-east. Towns on the peninsula include Victor Harbor , Normanville , Yankalilla and Rapid Bay . Districts include Inman Valley and Hindmarsh Valley. A ferry travels between Cape Jervis , at the tip of the peninsula, and Kangaroo Island . There is surfing on both
620-601: The peninsula, for food and bush medicine . The bulrushes , reeds and sedges were used for basket-weaving or making rope , trees provided wood for spears , and stones were fashioned into tools . The Fleurieu Peninsula was named after Charles Pierre Claret de Fleurieu , the French explorer and hydrographer , by the French explorer Nicolas Baudin as he explored the south coast of Australia in 1802. The name came into official use in 1911 after Fleurieu's great-nephew, Count Alphonse de Fleurieu, visited Adelaide and met with
651-468: The sediment is deposited, forming a delta peninsula. Marine transgressions (changes in sea level) may form peninsulas, but also may affect existing peninsulas. For example, the water level may change, which causes a peninsula to become an island during high water levels. Similarly, wet weather causing higher water levels make peninsulas appear smaller, while dry weather make them appear larger. Sea level rise from global warming will permanently reduce
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#1732772372079682-481: The size of some peninsulas over time. Peninsulas are noted for their use as shelter for humans and Neanderthals . The landform is advantageous because it gives hunting access to both land and sea animals. They can also serve as markers of a nation's borders. Swamp A swamp is a forested wetland . Swamps are considered to be transition zones because both land and water play a role in creating this environment. Swamps vary in size and are located all around
713-532: The southern tip of Maryland contains many swamps and marshes. The Great Dismal Swamp lies in extreme southeastern Virginia and extreme northeastern North Carolina . Both are National Wildlife Refuges . Another swamp area, Reelfoot Lake of extreme western Tennessee and Kentucky , was created by the 1811–12 New Madrid earthquakes . Caddo Lake , the Great Dismal and Reelfoot are swamps centered at large lakes. Swamps are often associated with bayous in
744-618: The swamp also provides soil stability to the land, holding soils and sediment in place whilst preventing erosion and land loss. Swamps are an abundant and valuable source of fresh water and oxygen for all life, and they are often breeding grounds for a wide variety of species. Floodplain swamps are an important resource in the production and distribution of fish. Two thirds of global fish and shellfish are commercially harvested and dependent on wetlands. Historically, humans have been known to drain and/or fill swamps and other wetlands in order to create more space for human development and to reduce
775-447: The swamp, purifying the water. Any remaining or excess chemicals present will accumulate at the bottom of the swamp, being removed from the water and buried within the sediment. The biogeochemical environment of a swamp is dependent on its hydrology, affecting the levels and availability of resources like oxygen, nutrients, water pH and toxicity, which will influence the whole ecosystem. Swamps and other wetlands have traditionally held
806-525: The threat of diseases borne by swamp insects. Wetlands are removed and replaced with land that is then used for things like agriculture, real estate, and recreational uses. Many swamps have also undergone intensive logging and farming, requiring the construction of drainage ditches and canals. These ditches and canals contributed to drainage and, along the coast, allowed salt water to intrude, converting swamps to marsh or even to open water. Large areas of swamp were therefore lost or degraded. Louisiana provides
837-564: The volcano erupts near shallow water. Marine sediment may form peninsulas by the creation of limestone . A rift peninsula may form as a result of a divergent boundary in plate tectonics (e.g. the Arabian Peninsula ), while a convergent boundary may also form peninsulas (e.g. Gibraltar or the Indian subcontinent ). Peninsulas can also form due to sedimentation in rivers. When a river carrying sediment flows into an ocean,
868-566: The west and south facing coasts – known locally to Adelaide surfers as the Mid South Coast and the Far South Coast. Surf spots of note include Waitpinga and Middleton on the Far South Coast. In the past, there were extensive swamps and woodlands , which provided habitat and food sources for a range of birds, fish, and other animals, included snake-necked turtles , yabbies , rakali , ducks and black swans . Flora included
899-907: The world is the Amazon River floodplain, which is particularly significant for its large number of fish and tree species. The Sudd and the Okavango Delta are Africa's best known marshland areas. The Bangweulu Floodplains make up Africa's largest swamp. The Mesopotamian Marshes is a large swamp and river system in southern Iraq , traditionally inhabited in part by the Marsh Arabs . In Asia, tropical peat swamps are located in mainland East Asia and Southeast Asia. In Southeast Asia, peatlands are mainly found in low altitude coastal and sub-coastal areas and extend inland for distance more than 100 km (62 mi) along river valleys and across watersheds. They are mostly to be found on
930-589: The world. The water of a swamp may be fresh water , brackish water , or seawater . Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations. Saltwater swamps are found along tropical and subtropical coastlines. Some swamps have hammocks , or dry-land protrusions, covered by aquatic vegetation , or vegetation that tolerates periodic inundation or soil saturation. The two main types of swamp are "true" or swamp forests and "transitional" or shrub swamps . In
961-504: Was created from a large deposit of glacial drift . The hill of drift becomes a peninsula if the hill formed near water but was still connected to the mainland, for example during the formation of Cape Cod about 23,000 years ago. In the case of formation from volcanoes, when a volcano erupts magma near water, it may form a peninsula (e.g., the Alaskan Peninsula ). Peninsulas formed from volcanoes are especially common when