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| Atlantic archipelagos | |
|---|---|
| Name | Atlantic archipelagos |
| Location | Atlantic Ocean |
| Major islands | Azores, Canary Islands, Madeira, Bermuda, Faroe Islands, Shetland Islands, Orkney Islands, Azores (islands) |
| Country | Multiple |
| Population | Millions |
Atlantic archipelagos Atlantic archipelagos are clusters of islands located in the Atlantic Ocean including volcanic, continental fragment, and coral formations such as the Azores, Canary Islands, Madeira, Bermuda, Cape Verde, Sao Tome and Principe, Ivory Coast Islands, Faroe Islands, Shetland Islands, and Orkney Islands. They span jurisdictions like Portugal, Spain, United Kingdom, Denmark, Iceland, United States, Canada, France, Cape Verde (country), and São Tomé and Príncipe and have shaped maritime routes from the Age of Discovery through the Cold War to contemporary European Union and North Atlantic Treaty Organization considerations.
The term refers to ensembles of islands in the North Atlantic Ocean and South Atlantic Ocean, including archipelagos associated with nations such as Portugal (country), Spain (country), United Kingdom (state), Denmark (Kingdom of Denmark), Iceland (Republic of Iceland), United States of America, Canada (country), France (French Republic), Senegal (Republic of Senegal), and Brazil (Federative Republic of Brazil). Notable island groups include the Azores, Madeira, Canary Islands, Cape Verde, São Tomé and Príncipe, Bermuda, Saba (island), Sint Eustatius, Aruba, Bermuda (British Overseas Territory), and northern chains such as the Faroe Islands, Shetland Islands, Orkney Islands, and Hebrides. The scope covers geological, biological, cultural, and geopolitical parameters anchored to events like the Treaty of Tordesillas, the Treaty of Utrecht, the Treaty of Versailles (1783), and modern agreements such as the United Nations Convention on the Law of the Sea.
Many Atlantic archipelagos form at tectonic settings including mid‑ocean ridges like the Mid-Atlantic Ridge, hotspot tracks such as the Azores hotspot, Canary hotspot, and volcanic provinces tied to the Iberian Peninsula margin, while others derive from submerged continental fragments related to ancient plates like Laurentia and Gondwana. Oceanographic contexts include currents such as the Gulf Stream, the North Atlantic Drift, the Canary Current, and the Benguela Current which modulate climate for the Azores High, Icelandic Low, and regional climates in places like Madeira (autonomous region) and Cape Verde (islands). Geological features include seamounts like the Great Meteor Tablemount, fracture zones such as the Charlie-Gibbs Fracture Zone, and abyssal plains adjacent to island shelves discussed in literature on the Mid-Atlantic Ridge and Plate tectonics.
North Atlantic: western groups include Bermuda, Sable Island, and archipelagos linked to Newfoundland and Labrador, Nova Scotia, and Prince Edward Island; northeastern groups include the Faroe Islands, Shetland Islands, Orkney Islands, Hebrides, and the Azores (islands). Macaronesia: comprises the Azores, Madeira, Canary Islands, and Cape Verde. Eastern South Atlantic: includes Cape Verde, São Tomé and Príncipe, and island groups off Gabon and Angola; western South Atlantic: includes the Falkland Islands, South Georgia and the South Sandwich Islands, and subantarctic chains discussed in Antarctic Treaty contexts. Atlantic islands also encompass Caribbean-associated states like Aruba, Curaçao, Bonaire, Sint Maarten, Saint Martin (island), Saba (island), and Sint Eustatius, with historic links to the Spanish Empire, the Dutch East India Company, and the British Empire.
Island biogeography in these archipelagos reflects endemism documented for taxa in the Azores (flora), Madeiran flora, Canary Islands flora, Cape Verde biodiversity, Bermuda cedar, and fauna like the Azores bullfinch, Canary Islands chiffchaff, Madeiran firecrest, and marine species including loggerhead sea turtle, green sea turtle, and cetaceans such as sperm whale, humpback whale, and pilot whale. Habitats range from laurel forests associated with Macaronesia and montane heath found in Pico Island to coral reef systems around Bonaire and seagrass meadows in the Gulf of Mexico corridor; island ecosystems are shaped by biogeographic processes described by authors influenced by the Theory of Island Biogeography and empirical studies in Darwin's finches analogues.
Human settlement and use include prehistoric visits inferred from contacts related to Vikings in the Faroe Islands and Iceland, medieval colonization tied to Kingdom of Norway, Kingdom of Scotland, and the Kingdom of Portugal during the Age of Discovery when navigators like Christopher Columbus, Ferdinand Magellan, Vasco da Gama, and Prince Henry the Navigator used islands as waypoints. Colonial competition involved actors such as the Spanish Empire, Portuguese Empire, Dutch Empire, British Empire, and events like the Battle of the Atlantic, transatlantic slave trade, and plantation economies exemplified in São Tomé and Príncipe and Cape Verde (islands). Contemporary governance spans devolved arrangements such as the Autonomous Region of Madeira, Azores Autonomous Region, overseas territories like Bermuda (British Overseas Territory), and overseas departments such as Martinique and Guadeloupe within the French Republic.
Economic activities concentrate on fisheries regulated under frameworks like the Common Fisheries Policy, maritime trade along lanes such as the North Atlantic shipping lanes, offshore energy including offshore oil and offshore wind farms near continental shelves, and services like banking in jurisdictions such as Bermuda (territory) and Cayman Islands. Tourism hubs include Madeira (island), Ponta Delgada, Funchal, Tenerife, Lanzarote, Sal (Cape Verde), and Bermuda with transport links via carriers like TAP Portugal, Ryanair, Iberia (airline), British Airways, and hubs such as Lisbon Portela Airport, Funchal Airport, Tenerife South Airport, and seaports like Port of Leixões and Port of Las Palmas.
Conservation concerns involve invasive species management exemplified by eradication programs in the Galapagos (comparative study), protection under conventions like the Convention on Biological Diversity and the Ramsar Convention for wetlands, and climate threats including sea level rise documented by the Intergovernmental Panel on Climate Change and ocean warming affecting coral bleaching recorded by NOAA. Regional initiatives include marine protected areas near Azores Whale Sanctuary, restoration projects in Madeira Natural Park, and multilateral cooperation through bodies such as the European Union and regional fisheries management organizations like the North-East Atlantic Fisheries Commission to address overfishing, coastal erosion, and biodiversity loss.
Category:Archipelagos