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120-687: In the Western Hemisphere Dominica ( locally / ˌ d ɒ m ɪ ˈ n iː k ə / dom-in- EE -kə ; UK : US : / ˌ d ɒ m ɪ ˈ n iː k ə / or / d ə ˈ m ɪ n ɪ k ə / ; Dominican Creole French : Dominik ; Kalinago : Waitukubuli ), officially the Commonwealth of Dominica , is an island country in the Caribbean . It is part of the Windward Islands chain in

240-706: A Bilateral Immunity Agreement of protection with the US military, as covered under Article 98 . In January 2008, Dominica joined the Bolivarian Alternative for the Americas . Both male and female same-sex sexual activity were criminalized in Dominica in the 19th century during the colonial era. In April 2024, Dominican attorney-at-law Cara Shillingford persuaded the High Court of Justice to overturn

360-495: A landslide caused by the heavy rains crushed their house. In another incident two people were injured when a tree fell on their house. Prime Minister Roosevelt Skerrit estimated that 100 to 125 homes were damaged, and that the agricultural sector was extensively damaged, in particular the banana crop. In August 2015, Tropical Storm Erika caused extensive flooding and landslides across the island. Multiple communities were evacuated and upwards of 30 people were killed. According to

480-667: A Phanerozoic low in diversity by the late Oligocene, and the temperate forests and jungles of the Eocene were replaced by forest and scrubland. The closing of the Tethys Seaway destroyed its tropical biota. The Oi1 event of the Eocene-Oligocene transition covered the continent of Antarctica with ice sheets, leaving Nothofagus and mosses and ferns clinging to life around the periphery of Antarctica in tundra conditions. Angiosperms continued their expansion throughout

600-492: A Rapid Damage and Impact Assessment prepared for Dominica by the World Bank, the total damage and losses from the storm were US$ 484.82 million or 90% of Dominica's yearly GDP. Category 5 Hurricane Maria struck the island in 2017 and caused losses of approximately US$ 930 million or 226% of GDP. The Sisserou parrot ( Amazona imperialis ) is Dominica's national bird and is endemic to its mountain forests. A related species,

720-681: A broader trend of global cooling lasting from the Bartonian to the Rupelian. The transition is marked by the Oi1 event, an oxygen isotope excursion occurring approximately 33.55 million years ago, during which oxygen isotope ratios decreased by 1.3 ‰ . About 0.3–0.4 ‰ of this is estimated to be due to major expansion of Antarctic ice sheets. The remaining 0.9 to 1.0 ‰ was due to about 5 to 6 °C (9 to 10 °F) of global cooling . The transition likely took place in three closely spaced steps over

840-494: A critical threshold value. Brachiopod oxygen isotope ratios from New Zealand suggest that a proto-Subtropical Convergence developed during the Early Oligocene, with northern New Zealand being subtropical and southern and eastern New Zealand being cooled by cold, subantarctic water. Oligocene climate following the Eocene-Oligocene event is poorly known. There were several pulses of glaciation in middle Oligocene, about

960-664: A decade of poor performance. Growth in 2006 was attributed to gains in tourism, construction, offshore and other services, and some sub-sectors of the banana industry. Around this time the International Monetary Fund (IMF) praised the Government of Dominica for its successful macroeconomic reforms, but also pointed out remaining challenges, including the need for further reductions in public debt, increased financial sector regulation, and market diversification. Western Hemisphere The Western Hemisphere

1080-457: A decrease in banana prices. Eugenia Charles won the 1985 general election, becoming only the first incumbent Dominica Prime Minister to be popularly re-elected. The continuing downturn in the economy and the tight grip by Eugenia Charles on Dominica politics gave rise to a self-titled "Third Force" political formation in 1988, which disrupted the traditional two-party arrangement of governing DFP and opposition DLP. "Third Force" soon formalized as

1200-425: A destination for tourists interested in whale-watching . The Commonwealth of Dominica is engaged in a long-running dispute with Venezuela over Venezuela's territorial claims to the sea surrounding Isla de Aves (literally Bird Island, but in fact called 'Bird Rock' by Dominican authorities), a tiny islet located 140 miles (225 km) west of the island of Dominica. Dominica is a parliamentary democracy within

1320-473: A few years the government sought to encourage the island as an ecotourism destination, although the hurricane of 2017 has since changed these plans. The country had a 2018 Forest Landscape Integrity Index mean score of 1.06/10, ranking it 166th globally out of 172 countries. There are two primary population centres: the capital Roseau (with 14,725 inhabitants in 2011) and Portsmouth (with 4,167 inhabitants in 2011). The main centres tend to be located around

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1440-592: A major mountain chain in the Oligocene, as subduction became more direct into the coastline. Climate during the Oligocene reflected a general cooling trend following the Early Eocene Climatic Optimum . This transformed the Earth's climate from a greenhouse to an icehouse climate. The Eocene-Oligocene transition was a major cooling event and reorganization of the biosphere, being part of

1560-470: A new five-year term. In December 2019, incumbent Prime Minister Roosevelt Skerrit won his fourth consecutive general election eighteen seats to three, becoming the first Dominica Prime Minister ever to do so. Dominica received its first Olympic gold medal in the 2024 Summer Olympics in Paris when Thea LaFond won the women's triple jump with a length of 15.02 metres. Dominica is an island nation in

1680-460: A semiarid prairie home and included entelodonts like Archaeotherium , camelids (such as Poebrotherium ), running rhinoceratoids , three-toed equids (such as Mesohippus ), nimravids , protoceratids , and early canids like Hesperocyon . Merycoidodonts, an endemic American group, were very diverse during this time. Australia and South America became geographically isolated and developed their own distinctive endemic fauna. These included

1800-471: A takeover by mercenaries in Operation Red Dog , led by Mike Perdue and Wolfgang Droege . They tried to overthrow Charles as prime minister and reinstall ex-prime minister John in exchange for control over the country's development. The FBI was tipped off, and the ship hired to transport the mercenaries never left dock. The mercenaries lacked formal military experience or training, and most of

1920-517: A wide range of protest actions, including boycott of Parliament. UWP's boycott lasted at least three unauthorized absences from Parliament for two of their three Elected Representatives in Parliament in violation of Parliamentary procedure, leading to their two seats being declared vacant and by-elections being called to fill them; by-elections were conducted for those two vacant seats in July 2010, and

2040-506: Is Morne Diablotins , at 1,447 m (4,747 ft) in elevation. The population was 71,293 at the 2011 census. The island was settled by the Arawak arriving from South America in the fifth century. The Kalinago displaced the Arawak by the 15th century. Christopher Columbus is said to have passed the island on Sunday, 3 November 1493. It was later colonised by Europeans, predominantly by

2160-774: Is a geologic epoch of the Paleogene Period that extends from about 33.9 million to 23 million years before the present ( 33.9 ± 0.1 to 23.03 ± 0.05  Ma ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from Ancient Greek ὀλίγος ( olígos ) 'few' and καινός ( kainós ) 'new', and refers to

2280-456: Is a tropical forest blended with volcanic features; it was recognised as a World Heritage Site on 4 April 1995, a distinction it shares with four other Caribbean islands. The Calibishie area in the country's northeast has sandy beaches. Some plants and animals thought to be extinct on surrounding islands can still be found in Dominica's forests. The island has several protected areas , including Cabrits National Park , as well as 365 rivers. For

2400-642: Is discernible in pollen counts from the Tibetan Plateau, which also show that the South Asian Monsoon had already developed by the late Oligocene. Around 25.8 Ma, the South Asian Monsoon underwent an episode of major intensification brought on by the uplift of the Tibetan Plateau. A deep 400,000-year glaciated Oligocene-Miocene boundary event is recorded at McMurdo Sound and King George Island . The early Eocene climate

2520-730: Is home to 195 species of birds. Because of the isolated location of Dominica, this number is lower than that of Trinidad , which is located closer to mainland South-America and has 472 bird species. The Caribbean Sea offshore of the island of Dominica is home to many cetaceans . Most notably a group of sperm whales live in this area year-round. Other cetaceans commonly seen in the area include spinner dolphins , pantropical spotted dolphins and bottlenose dolphins . Less commonly seen animals include killer whales , false killer whales , pygmy sperm whales , dwarf sperm whales , Risso's dolphins , common dolphins , Atlantic spotted dolphins , humpback whales and Bryde's whales . This makes Dominica

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2640-527: Is home to the world's second-largest hot spring , Boiling Lake . Within its borders lie two ecoregions: Windward Islands moist forests and Windward Islands xeric scrub. The most mountainous of the Lesser Antilles, its volcanic peaks are cones of lava craters, the largest of these being (north-to-south) Morne aux Diables , Morne Diablotins (the highest on the island at 1,447 m), Morne Trois Pitons and Morne Anglais . Morne Trois Pitons National Park

2760-419: Is not set at an easily identified worldwide event but rather at regional boundaries between the warmer late Oligocene and the relatively cooler Miocene. The lower boundary of the Oligocene (its Global Boundary Stratotype Section and Point or GSSP) is placed at the last appearance of the foraminiferan genus Hantkenina in a quarry at Massignano , Italy . However, this GSSP has been criticized as excluding

2880-630: Is the half of the planet Earth that lies west of the Prime Meridian —which crosses Greenwich , London , England —and east of the 180th meridian . The other half is called the Eastern Hemisphere . Geo-politically, the term Western Hemisphere is often used as a metonym for the Americas or the " New World ", even though geographically the hemisphere also includes parts of other continents. The Western Hemisphere consists of

3000-434: Is the youngest island in the Lesser Antilles, and is still being formed by geothermal - volcanic activity, as evidenced by the world's second-largest hot spring , called Boiling Lake . The island has lush mountainous rainforests and is the home of many rare plants, animals, and bird species. There are xeric areas in some of the western coastal regions, but heavy rainfall occurs inland. The Sisserou parrot , also known as

3120-586: The 1990 general election, the first incumbent Dominica Prime Minister to win three consecutive general elections. However, Eugenia Charles's DFP had been pushed to within one seat of losing its majority in Parliament by the emergence of the UWP. It was, therefore, no great surprise when Eugenia Charles gave up political leadership of the Dominica Freedom Party in 1993 and did not contest the 1995 general election in any capacity. No longer benefiting from

3240-765: The Americas , excluding some of the Aleutian Islands to the southwest of the Alaskan mainland; the westernmost portions of Europe and Africa , both mainland and islands; the extreme eastern tip of the Russian mainland and islands ( North Asia ); numerous territories in Oceania ; and a large portion of Antarctica . The center of the Western Hemisphere is located in the Pacific Ocean at

3360-544: The British West Indies to have an elected legislature controlled by an ethnic African majority. Most of these legislators had been free people of colour and smallholders or merchants before the abolition of slavery. Their economic and social views were different from the interests of the small, wealthy English planter class. Reacting to a perceived threat to their power, the planters lobbied for more direct British rule. In 1865, after much agitation and tension,

3480-614: The Caribbean Sea , the northernmost of the Windward Islands (though it is sometimes considered the southernmost of the Leeward Islands ). The size of the country is about 289.5 square miles (750 km) and it is about 29 miles (47 km) long and 16 miles (26 km) wide. Known as "The Nature Island of the Caribbean" due to its lush scenery and varied flora and fauna, Dominica is largely covered by rainforest and

3600-418: The Commonwealth of Nations . The capital is Roseau . The Commonwealth of Dominica is one of the Caribbean's few republics . The president is the head of state , while executive power rests with the cabinet , headed by the prime minister . The unicameral parliament consists of the 30-member House of Assembly , which consists of 21 directly elected members and nine senators, who may either be appointed by

3720-507: The Island Carib people, who are thought to have driven out the previous Arawak population. However, this may be a partial misconception as ancestral Kalinago narratives mention the two groups co existing and intermarrying. The Arawak were not the primary indigenous group. It is believed that before them were a group of paleo-Indians who arrived towards the end of the late Pleistocene period. In 1493, Christopher Columbus first spotted

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3840-540: The Lesser Antilles archipelago in the Caribbean Sea . The capital, Roseau , is located on the western side of the island. Dominica's closest neighbours are two constituent territories of the European Union , the overseas departments of France, Guadeloupe to the northwest and Martinique to the south-southeast. Dominica comprises a land area of 750 km (290 sq mi), and the highest point

3960-523: The Military of Dominica , who organised an attack on the police headquarters in Roseau which resulted in the death of a police officer. Newton and five other soldiers were found guilty in the attack and sentenced to death in 1983; the sentences of the five accomplices were later commuted to life in prison, but Newton was executed in 1986. A second occurred later in the year when the country was threatened with

4080-651: The Organisation of Eastern Caribbean States and the Non-Aligned Movement . The Caribs called the island Wai‘tu kubuli , which means "Tall is her body". Christopher Columbus , sailing for Spain, named the island Dominica, after the Latin term dies Dominica for Sunday , the day on which he first saw it in November 1493. Dominica's name is pronounced with emphasis on the third syllable, following

4200-532: The Slavery Abolition Act of 1833 , Britain ended the institution of slavery throughout its empire , except in India. With freedom came enfranchisement. In 1835, the first three men of African descent were elected to the legislative assembly of Dominica. Many slaves from the neighbouring French colonial islands of Guadeloupe and Martinique fled to Dominica. In 1838, Dominica became the first colony of

4320-702: The Trans-Atlantic Slave Trade , by which slaves were imported and sold as labour in the islands as part of a trade that included producing and shipping sugar and coffee as commodity crops to Europe. The best documented slave plantation on the island is Hillsborough Estate, which had 71 male and 68 female slaves. The Greg family were notable: Thomas Hodgson, a brother-in-law, owned a slave ship, and Thomas Greg and his son John Greg were part-owners of sugar plantations in Dominica. In January 1814, 20 slaves absconded from Hillsborough. They were recorded as recaptured and punished with 100 lashes applied to

4440-656: The United Workers' Party (UWP) and selected as its leader Edison James, the former General Manager of the Dominica Banana Marketing Company. This was a strategic selection given James's prestige among banana farmers and his originating from the East or Atlantic Coast that had begun to feel alienated by the West or Caribbean Sea Coast elites in Roseau, Dominica's capital. Eugenia Charles again won

4560-426: The archaeocete cetaceans began to decrease in diversity due to their lack of echolocation, which was very useful as the water became colder and cloudier. Other factors to their decline could include climate changes and competition with today's modern cetaceans and the requiem sharks , which also appeared in this epoch. Early desmostylians , like Behemotops , are known from the Oligocene. Pinnipeds appeared near

4680-666: The creodonts that had dominated the Paleocene in the Old World. Rodents and rabbits underwent tremendous diversification due to the increase in suitable habitats for ground-dwelling seed eaters, as habitats for squirrel-like nut- and fruit-eaters diminished. The primates, once present in Eurasia, were reduced in range to Africa and South America. Many groups, such as equids , entelodonts , rhinos , merycoidodonts , and camelids , became more able to run during this time, adapting to

4800-476: The Americas, Hispaniola, and island shares with Haiti. Hispaniola was later renamed Dominican Republic. Spain had little success in colonising Dominica. In 1632, the French Compagnie des Îles de l'Amérique claimed it and other "Petites Antilles" for France , but no physical occupation took place. Between 1642 and 1650, French missionary Raymond Breton became the first regular European visitor to

4920-601: The Antarctic Circumpolar Current. There is some evidence that it occurred much earlier, during the early Eocene. The other major oceanic gateway opening during this time was the Tasman, or Tasmanian, depending on the paper, gateway between Australia and Antarctica. The time frame for this opening is less disputed than the Drake Passage and is largely considered to have occurred around 34 Ma. As

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5040-717: The Arctic may have influenced this oceanic cooling, though the extent of this influence is still a matter of some significant dispute. The opening and closing of ocean gateways: the opening of the Drake Passage ; the opening of the Tasmanian Gateway and the closing of the Tethys seaway; along with the final formation of the Greenland – Iceland – Faroes Ridge; played vital parts in reshaping oceanic currents during

5160-585: The British established a legislative assembly , with only European colonists represented. French remained the official language, but Antillean Creole , which had developed from it, was spoken by most of the population. In 1778 the French, with the active co-operation of the population, began the re-capture of Dominica . This was ended by the Treaty of Paris (1783) , which returned the island to British control. But

5280-566: The DLP won elections in May 2005 that gave the party 12 seats in the 21-seat Parliament. The UWP won 8 seats and Ronald Toulon, who was an independent candidate at that time, won the remaining seat. Later, Toulon joined the government. With his 2005 election win, Skerrit became only the second incumbent Prime Minister of seven to be popularly re-elected. In the 2009 election , the DLP won 18 of 21 seats. The UWP claimed campaign improprieties and embarked on

5400-536: The Dong Ho Formation of Oligocene age shows that the Oligocene flora of what is now Vietnam was very similar to its present flora. Kelps make their first appearance in the fossil record during the earliest Oligocene. Most extant mammal families had appeared by the end of the Oligocene. These included primitive three-toed horses, rhinoceroses, camels, deer, and peccaries. Carnivores such as dogs , nimravids , bears, weasels, and raccoons began to replace

5520-402: The Drake Passage may also have been in place by the end of the early Oligocene. This may have been interrupted by a temporary constriction of the Drake Passage from sometime in the middle to late Oligocene (29 to 22 mya) to the middle Miocene (15 mya). The reorganization of the oceanic tectonic plates of the northeastern Pacific, which had begun in the Paleocene, culminated with the arrival of

5640-524: The Drake Passage opened and enabled the formation of the Antarctic Circumpolar Current (ACC), which would have kept the cold waters of Antarctica circulating around that continent and strengthened the formation of Antarctic Bottom Water (ABW). With the cold water concentrated around Antarctica, sea surface temperatures and, consequently, continental temperatures would have dropped. The onset of Antarctic glaciation occurred during

5760-973: The East African large igneous province , which also initiated rifting along the Red Sea and Gulf of Aden . The Alps were rapidly rising in Europe as the African Plate continued to push north into the Eurasian Plate , isolating the remnants of the Tethys Sea . Sea levels were lower in the Oligocene than in the early Eocene, exposing large coastal plains in Europe and the Gulf Coast and Atlantic Coast of North America. The Obik Sea , which had separated Europe from Asia, retreated early in

5880-563: The Eocene-Oligocene transition are not yet fully understood. The timing is wrong for this to be caused either by known impact events or by the volcanic activity on the Ethiopean Plateau. Two other possible drivers of climate change, not mutually exclusive, have been proposed. The first is thermal isolation of the continent of Antarctica by development of the Antarctic Circumpolar Current . Deep sea cores from south of New Zealand suggest that cold deep-sea currents were present by

6000-468: The French from the 1690s to 1763. The French trafficked slaves from West Africa to Dominica to work on coffee plantations. Great Britain took possession in 1763 after the Seven Years' War , and it gradually established English as its official language. The island gained independence as a republic in 1978. Dominica has been nicknamed the "Nature Island of the Caribbean" for its natural environment. It

6120-425: The French islands with wood, and they gradually became permanent settlers. They brought the first enslaved Africans from West Africa to Dominique , as they called it in French. In 1715, a revolt of "poor white" smallholders in the north of Martinique, known as La Gaoulé, caused settlers to migrate to southern Dominique, where they set up smallholdings . Meanwhile, French families and others from Guadeloupe settled in

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6240-677: The Grande Coupure. The lowering of sea levels closed the Turgai Strait across the Obik Sea, which had previously separated Asia from Europe. This allowed Asian mammals, such as rhinoceroses and ruminants , to enter Europe and drive endemic species to extinction. Lesser faunal turnovers occurred simultaneously with the Oi2 event and towards the end of the Oligocene. There was significant diversification of mammals in Eurasia, including

6360-530: The House of Assembly crossed the floor, joining the DLP-DFP coalition government. However, Douglas died on 1 October 2000 after only a few months. Prime Minister Douglas was replaced by Pierre Charles , who also died in office on 6 January 2004. Roosevelt Skerrit , also of the DLP, replaced Pierre Charles as prime minister, becoming the world's youngest head of government at the age of 31. Under Skerrit's leadership,

6480-418: The Imperial amazon, is critically endangered and found only on Dominica. It is the island's national bird and is featured on the national flag , making Dominica one of only two sovereign nations whose official flag features the color purple. The country is a member of the Commonwealth of Nations , the United Nations , the Organization of American States , the Organisation internationale de la Francophonie ,

6600-433: The Jaco or red-necked parrot ( A. arausiaca ), is also a Dominican endemic. Both birds are rare and protected, though some forest is still threatened by logging in addition to the long-standing threat of hurricanes. Dominica has recorded at least four species of snakes and 11 species of lizards. Dominica is the last major stronghold of the critically endangered Lesser Antillean iguana ( Iguana delicatissima ). Dominica

6720-448: The Jurassic, but the exact timing of the establishment of ocean channels between the two continents remains uncertain. However, one estimate is that a deep channel was in place between the two continents by the end of the early Oligocene. The timing of the formation of the Drake Passage between South America and Antarctica is also uncertain, with estimates ranging from 49 to 17 mya (early Eocene to Miocene), but oceanic circulation through

6840-454: The Murray and Mendocino Fracture Zones at the North American subduction zone in the Oligocene. This initiated strike-slip movement along the San Andreas Fault and extensional tectonics in the Basin and Range province , ended volcanism south of the Cascades, and produced clockwise rotation of many western North American terranes. The Rocky Mountains were at their peak. A new volcanic arc was established in western North America, far inland from

6960-449: The New World and Old World monkeys. The South American continent was home to animals such as pyrotheres and astrapotheres , as well as litopterns and notoungulates . Sebecosuchians , terror birds , and carnivorous metatheres , like the borhyaenids remained the dominant predators. Africa was also relatively isolated and retained its endemic fauna. These included mastodonts, hyraxes, arsinoitheres, and other archaic forms. Egypt in

7080-459: The Norwegian-Greenland Sea indicate a drop in winter temperatures at high latitudes of about 5 °C (9.0 °F) just prior to the Oi1 event. Borehole dating from the Southeast Faroes drift indicates that deep-ocean circulation from the Arctic Ocean to the North Atlantic Ocean began in the early Oligocene. The best terrestrial record of Oligocene climate comes from North America, where temperatures dropped by 7 to 11 °C (13 to 20 °F) in

7200-436: The Norwegian-Greenland Sea indicated that glaciers had appeared in Greenland by the start of the Oligocene. Continental ice sheets in Antarctica reached sea level during the transition. Glacially rafted debris of early Oligocene age in the Weddell Sea and Kerguelen Plateau , in combination with Oi1 isotope shift, provides unambiguous evidence of a continental ice sheet on Antarctica by the early Oligocene. The causes of

7320-401: The Oligocene exists mostly in isotopic proxies. Patterns of extinction and patterns of species migration can also be studied to gain insight into ocean conditions. For a while, it was thought that the glaciation of Antarctica may have significantly contributed to the cooling of the ocean, however, recent evidence tends to deny this. Isotopic evidence suggests that during the early Oligocene,

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7440-410: The Oligocene included a global expansion of grasslands , and a regression of tropical broad leaf forests to the equatorial belt . The start of the Oligocene is marked by a notable extinction event called the Grande Coupure ; it featured the replacement of European fauna with Asian fauna , except for the endemic rodent and marsupial families. By contrast, the Oligocene–Miocene boundary

7560-402: The Oligocene was an environment of lush forested deltas. Nevertheless, the Early Oligocene saw a major reduction in the diversity of many Afro-Arabian mammal clades, including hyaenodonts, primates, and hystricognath and anomaluroid rodents. During the Oligocene, the Tethyan marine biodiversity hotspot collapsed as the Tethys Ocean contracted. The seas around Southeast Asia and Australia became

7680-407: The Oligocene, creating a persistent land connection between the continents. The Paratethys Sea stretched from what is now the Balkan Peninsula across Central Asia to the Tian Shan region of what is now Xinjiang . There appears to have been a land bridge in the early Oligocene between North America and Europe, since the faunas of the two regions are very similar. However, towards the end of

7800-440: The Oligocene, there was a brief marine incursion in Europe. The rise of the Himalayas during the Oligocene remains poorly understood. One recent hypothesis is that a separate microcontinent collided with south Asia in the early Eocene, and India itself did not collide with south Asia until the end of the Oligocene. The Tibetan Plateau may have reached nearly its present elevation by the late Oligocene. The Andes first became

7920-404: The Oligocene. The Oligocene saw the emergence of parrotfishes, as the centre of marine biodiversity shifted from the Central Tethys eastward into the Indo-Pacific. The fossil record of marine mammals is a little spotty during this time, and not as well known as the Eocene or Miocene, but some fossils have been found. The baleen whales and toothed whales had just appeared, and their ancestors,

8040-406: The Oligocene. As the continents shifted to a more modern configuration, so too did ocean circulation. The Drake Passage is located between South America and Antarctica . Once the Tasmanian Gateway between Australia and Antarctica opened, all that kept Antarctica from being completely isolated by the Southern Ocean was its connection to South America. As the South American continent moved north,

8160-477: The Spanish pronunciation of its name given to it by Christopher Columbus. The similar names and the identical demonym with the Dominican Republic has caused some in Dominica to advocate a change in its name to establish its own identity. Dominica first emerged from the sea during the Oligocene era approximately 67 million years ago, making it one of the last Caribbean islands to be formed by volcanic activity . Dominica's precolonial indigenous inhabitants were

8280-406: The UWP again won both seats. The DLP under Skerrit went on to win the 2014 Dominican general election . On 17 September 2012 Eliud Thaddeus Williams was sworn in as President (a largely ceremonial role), replacing Dr. Nicholas Liverpool who was reportedly removed from office due to ill health. On 30 September 2013 former Trade Union leader and former Dominica Freedom Party leader Charles Savarin

8400-402: The Western Hemisphere is the CN Tower in Toronto at 553.3 m (1,815 ft) and the tallest building in the Western Hemisphere is One World Trade Center in New York City at 541.3 m (1,776 ft). In an attempt to match the Western Hemisphere more closely with the Americas, some sources use the 20th meridian west and the diametrically opposed 160th meridian east to define

8520-425: The atmosphere, contributing to global cooling. The gradual separation of the clump of continental crust and the deepening of the tectonic ridge in the North Atlantic that would become Greenland, Iceland, and the Faroe Islands helped to increase the deep water flow in that area. More information about the evolution of North Atlantic Deep Water will be given a few sections down. Evidence for ocean-wide cooling during

8640-543: The buildings on the island had been destroyed, with infrastructure left in ruins. The UK, France and the Netherlands set up shipping and air lifts to take aid to the island; the scale of destruction having left most people homeless. Dominica won its first two Commonwealth Games medals in silver and bronze in the 2018 Commonwealth Games on the Gold Coast . President Charles Angelo Savarin was re-elected in 2018 for

8760-748: The coast, reaching from central Mexico through the Mogollon-Datil volcanic field to the San Juan volcanic field , then through Utah and Nevada to the ancestral Northern Cascades. Huge ash deposits from these volcanoes created the White River and Arikaree Groups of the High Plains, with their excellent fossil beds. Between 31 and 26 mya, the Ethiopia-Yemen Continental Flood Basalts were emplaced by

8880-442: The coast, with the mountainous interior sparsely populated. Dominica is especially vulnerable to hurricanes as the island is located in what is referred to as the hurricane region. In 1979, Hurricane David struck the island as a Category 4 hurricane, causing widespread and extreme damage. On 17 August 2007, Hurricane Dean , a Category 1 hurricane at the time, hit the island. A mother and her seven-year-old son died when

9000-481: The colonial office replaced the elective assembly with one made up of one-half members who were elected and one-half who were appointed. Planters, who were allied with colonial administrators, outmanoeuvred the elected legislators on many occasions. In 1871, Dominica became part of the British Leeward Islands . The political power of the elected assembly progressively eroded. Crown colony government

9120-462: The crew had been misled into joining by the ringleader Mike Perdue. White supremacist Don Black was also jailed for his part in the attempted coup, which violated US neutrality laws. The Charles government supported the 1983 American invasion of Grenada , earning Dominica praise from the U.S. government of Ronald Reagan , and an increase in financial aid. By the middle of the 1980s, the economy had begun to recover, before weakening again due to

9240-446: The difficulty may be that there were strong regional variations in the response to climate shifts. Evidence of a relatively warm Oligocene suggests an enigmatic climate state, neither hothouse nor icehouse. The late Oligocene (26.5 to 24 mya) likely saw a warming trend in spite of low pCO2 levels, though this appears to vary by region. However, Antarctica remained heavily glaciated during this warming period. The late Oligocene warming

9360-417: The earliest Oligocene. This change is seen from Alaska to the Gulf Coast. Upper Eocene paleosols reflect annual precipitation of over a meter of rain, but early Oligocene precipitation was less than half this. In central North America, the cooling was by 8.2 ± 3.1 °C over a period of 400,000 years, though there is little indication of significant increase in aridity during this interval. Ice-rafted debris in

9480-495: The early Oligocene, and the effect of the Drake Passage opening on this glaciation has been the subject of much research. However, some controversy still exists as to the exact timing of the passage opening, whether it occurred at the start of the Oligocene or nearer the end. Even so, many theories agree that at the Eocene/Oligocene (E/O) boundary, a yet shallow flow existed between South America and Antarctica, permitting

9600-496: The early Oligocene. However, the timing of this event remains controversial. The other possibility, for which there is considerable evidence, is a drop in atmospheric carbon dioxide levels ( pCO2 ) during the transition. The pCO2 is estimated to have dropped just before the transition, to 760 ppm at the peak of ice sheet growth, then rebounded slightly before resuming a more gradual fall. Climate modeling suggests that glaciation of Antarctica took place only when pCO2 dropped below

9720-432: The end of the epoch from an otter -like ancestor. The Oligocene sees the beginnings of modern ocean circulation, with tectonic shifts causing the opening and closing of ocean gateways. Cooling of the oceans had already commenced by the Eocene/Oligocene boundary, and they continued to cool as the Oligocene progressed. The formation of permanent Antarctic ice sheets during the early Oligocene and possible glacial activity in

9840-533: The foraminiferan Paragloborotalia kugleri and with the base of magnetic polarity chronozone C6Cn.2n. Oligocene faunal stages from youngest to oldest are: During the Oligocene Epoch, the continents continued to drift toward their present positions. Antarctica became more isolated as deep ocean channels were established between Antarctica and Australia and South America . Australia had been very slowly rifting away from West Antarctica since

9960-805: The gateway widened, the Antarctic Circumpolar Current strengthened. The Tethys Seaway was not a gateway, but rather a sea in its own right. Its closing during the Oligocene had significant impact on both ocean circulation and climate. The collisions of the African plate with the European plate and of the Indian subcontinent with the Asian plate, cut off the Tethys Seaway that had provided a low-latitude ocean circulation. The closure of Tethys built some new mountains (the Zagros range) and drew down more carbon dioxide from

10080-530: The giant indricotheres , that grew up to 6 meters (20 ft) at the shoulder and weighed up to 20 tons. Paraceratherium was one of the largest land mammals ever to walk the Earth. However, the indricotheres were an exception to a general tendency for Oligocene mammals to be much smaller than their Eocene counterparts. The earliest deer, giraffes, pigs, and cattle appeared in the mid-Oligocene in Eurasia. The first felid , Proailurus , originated in Asia during

10200-415: The hemisphere. This definition excludes all of the European and African mainlands, but still includes some islands associated with these continents, more of eastern Russia and Oceania, and part of Antarctica. It includes all islands of Alaska, but excludes a small portion of northeast Greenland . There is no hemisphere that includes all of the Americas that also excludes all land outside of it, regardless of

10320-578: The intersection of the 90th meridian west and the Equator , among the Galápagos Islands . The nearest land is Genovesa Island at 0°19′N 89°57′W  /  0.317°N 89.950°W  / 0.317; -89.950 . The highest mountain in the Western Hemisphere is Aconcagua in the Andes of Argentina at 6,960.8 m (22,837 ft). The tallest freestanding structure in

10440-482: The island during his second voyage to the Americas. Because he saw the island on a Sunday (November 3, 1493), Columbus named the island Dominica (Latin for 'Sunday'). Some Spanish colonisers settled here. But, as European explorers and settlers entered the region, indigenous refugees from surrounding islands settled Dominica and pushed out the Spanish settlers. The Spanish instead focused on their first founded Island of

10560-495: The island population, especially the class of free people of color , resisted British restrictions. The British retained control throughout French invasions in 1795 and 1805, the first taking place during the period of the Haitian Revolution , which gained the independence of Haiti (formerly Saint-Domingue, France's richest Caribbean colony). Great Britain established a small colony in 1805. It used Dominica as part of

10680-487: The island. In 1660, the French and English agreed that Dominica and St. Vincent should not be settled, but instead left to the Carib people as neutral territory—but its natural resources attracted expeditions of English and French foresters, who began harvesting timber. In 1690, the French established their first permanent settlements. French woodcutters from Martinique and Guadeloupe began to set up timber camps to supply

10800-476: The island. Hurricane Allen the following year caused further damage. After the 1980 election , Seraphin's government was replaced by one led by the Dominica Freedom Party (DFP) under Prime Minister Eugenia Charles ; she was the Caribbean's first female prime minister. In 1981, Charles's government was threatened with two attempted coups. The first was led by Frederick Newton , commander of

10920-456: The late Oligocene and spread to Europe. There was only limited migration between Asia and North America. The cooling of central North America at the Eocene-Oligocene transition resulted in a large turnover of gastropods, amphibians, and reptiles. Mammals were much less affected. Crocodilians and pond turtles replaced by dry land tortoises. Molluscs shifted to more drought-tolerant forms. The White River Fauna of central North America inhabited

11040-562: The laws banning same-sex activity since they violated LGBT individuals' constitutional rights. Dominica is divided into 10 parishes , given below with their 2011 Census populations: Dominica's currency is the East Caribbean Dollar . In 2008, Dominica had one of the lowest per capita gross domestic product (GDP) rates of Eastern Caribbean states. The country nearly had a financial crisis in 2003 and 2004, but Dominica's economy grew by 3.5% in 2005 and 4.0% in 2006, following

11160-865: The main source of deep water was the North Pacific and the Southern Ocean . As the Greenland-Iceland-Faroe Ridge sank and thereby connected the Norwegian–Greenland sea with the Atlantic Ocean, the deep water of the North Atlantic began to come into play as well. Computer models suggest that once this occurred, a more modern in appearance thermo-haline circulation started. Evidence for the early Oligocene onset of chilled North Atlantic deep water lies in

11280-502: The males and 50 for the females. The slaves reportedly said that one of their people had died in the plantation hospital, and they believed he had been poisoned. In 1831, reflecting a liberalisation of official British racial attitudes, the Brown Privilege Bill conferred political and social rights on free blacks (mostly free people of colour , who generally were of mixed race , with African and European ancestry). With

11400-854: The meridian does pass Wallis and Futuna .) With the exception of the United States (due to Wake Island , Guam and the Northern Mariana Islands ), all of them are located on just one side of the International Date Line , which curves around them. The following countries and territories lie outside the Americas yet are entirely, mostly, or partially within the Western Hemisphere: Oligocene The Oligocene ( IPA : / ˈ ɒ l ɪ ɡ ə s iː n , - ɡ oʊ -/ OL -ə-gə-seen, -⁠goh- )

11520-548: The meridians or points chosen to define it. Below is a list of the sovereign states in both the Western and Eastern hemispheres on the IERS Reference Meridian , in order from north to south: Below is a list of additional sovereign states which are in both the Western and Eastern hemispheres along the 180th meridian , in order from north to south. (France is not listed below due to its inclusion above, though

11640-508: The new dominant hotspot of marine biodiversity. At sea, 97% of marine snail species, 89% of clams, and 50% of echinoderms of the Gulf Coast did not survive past the earliest Oligocene. New species evolved, but the overall diversity diminished. Cold-water mollusks migrated around the Pacific Rim from Alaska and Siberia. The marine animals of Oligocene oceans resembled today's fauna, such as the bivalves . Calcareous cirratulids appeared in

11760-445: The north. In 1727, the first French commander, M. Le Grand , took charge of the island with a basic French government. Dominique formally became a colony of France, and the island was divided into districts or "quarters". The French had already developed plantation agriculture on Martinique and Guadeloupe, where they cultivated sugarcane with enslaved African workers. In Dominique they gradually developed coffee plantations. Because of

11880-576: The opening of the Drake Passage is around 30 Ma. One of the possible issues with this timing was the continental debris cluttering up the seaway between the two plates in question. This debris, along with what is known as the Shackleton Fracture Zone , has been shown in a recent study to be fairly young, only about 8 million years old. The study concludes that the Drake Passage would be free to allow significant deep water flow by around 31 Ma. This would have facilitated an earlier onset of

12000-468: The opening of the Drake Passage is during the early Miocene. Despite the shallow flow between South America and Antarctica, there was not enough of a deep water opening to allow for significant flow to create a true Antarctic Circumpolar Current. If the opening occurred as late as hypothesized, then the Antarctic Circumpolar Current could not have had much of an effect on early Oligocene cooling, as it would not have existed. The earliest hypothesized time for

12120-517: The period from 33.8 to 33.5 mya. By the end of the transition, sea levels had dropped by 105 meters (344 ft), and ice sheets were 25% greater in extent than in the modern world. The effects of the transition can be seen in the geological record at many locations around the world. Ice volumes rose as temperature and sea levels dropped. Playa lakes of the Tibetan Plateau disappeared at the transition, pointing to cooling and aridification of central Asia. Pollen and spore counts in marine sediments of

12240-568: The period, grass was not quite common enough for modern savannas . In North America, much of the dense forest was replaced by patchy scrubland with riparian forests. Subtropical species dominated with cashews and lychee trees present, and temperate woody plants such as roses , beeches , and pines were common. The legumes spread, while sedges and ferns continued their ascent. In Europe, floral assemblages became increasingly affected by strengthening seasonality as it related to wildfire activity. The Ha Long megafossil flora from

12360-642: The plains that were spreading as the Eocene rainforests receded. Brontotheres died out in the Earliest Oligocene, and creodonts died out outside Africa and the Middle East at the end of the period. Multituberculates , an ancient lineage of primitive mammals that originated back in the Jurassic , also became extinct in the Oligocene, aside from the gondwanatheres . The Eocene-Oligocene transition in Europe and Asia has been characterized as

12480-665: The popularly elected seats of the legislative assembly in 1924, and one-half in 1936. In 1940, administration of Dominica was transferred from the British Leeward Islands to the British Windward Islands . During World War II , some Dominicans volunteered in British and Caribbean forces. Thousands of Free French refugees from Martinique and Guadeloupe escaped to Dominica from the Vichy -controlled French islands, staying in Roseau and other villages. Until 1958, Dominica

12600-579: The president or elected by the other members of the House of Assembly. Unlike other former British colonies in the region, Dominica was never a Commonwealth realm , instead becoming a republic on independence. Dominica is a full and participating member of the Caribbean Community (CARICOM) and the Organisation of Eastern Caribbean States (OECS). Dominica is also a member of the International Criminal Court , with

12720-642: The sparsity of extant forms of molluscs . The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during

12840-481: The start of an Antarctic Circumpolar Current. Stemming from the issue of when the opening of the Drake Passage took place, is the dispute over how great of an influence the opening of the Drake Passage had on the global climate. While early researchers concluded that the advent of the ACC was highly important, perhaps even the trigger, for Antarctic glaciation and subsequent global cooling, other studies have suggested that

12960-537: The time of the Oi2 oxygen isotope shift. This led to the largest drop of sea level in past 100 million years, by about 75 meters (246 ft). This is reflected in a mid-Oligocene incision of continental shelves and unconformities in marine rocks around the world. Some evidence suggests that the climate remained warm at high latitudes even as ice sheets experienced cyclical growth and retreat in response to orbital forcing and other climate drivers. Other evidence indicates significant cooling at high latitudes. Part of

13080-400: The trans-Atlantic slave trade, the general population came to consist primarily of black-African slaves. In 1761, during the Seven Years' War in Europe, a British expedition against Dominica led by Andrew Rollo conquered the island, along with several other Caribbean islands. In 1763, France had lost the war and ceded the island to Great Britain under the Treaty of Paris . The same year,

13200-399: The uppermost part of the type Eocene Priabonian Stage and because it is slightly earlier than important climate shifts that form natural markers for the boundary, such as the global oxygen isotope shift marking the expansion of Antarctic glaciation (the Oi1 event). The upper boundary of the Oligocene is defined by its GSSP at Carrosio , Italy , which coincides with the first appearance of

13320-467: The veteran charismatic leadership of Prime Minister Eugenia Charles, the Dominica Freedom Party lost the 1995 election to the UWP, whose leader Edison James became prime minister. James, former General Manager of the Dominica Banana Marketing Company attempted to diversify the Dominican economy away from over-reliance on bananas. The crop was largely destroyed by Hurricane Luis in 1995. Further James

13440-401: The world as tropical and sub- tropical forests were replaced by temperate deciduous forests . Open plains and deserts became more common and grasses expanded from their water-bank habitat in the Eocene moving out into open tracts. The decline in pCO2 favored C4 photosynthesis , which is found only in angiosperms and is particularly characteristic of grasses. However, even at the end of

13560-414: The δ O signature is too strong for glaciation to be the main trigger for cooling. Through study of Pacific Ocean sediments, other researchers have shown that the transition from warm Eocene ocean temperatures to cool Oligocene ocean temperatures took only 300,000 years, which strongly implies that feedbacks and factors other than the ACC were integral to the rapid cooling. The latest hypothesized time for

13680-454: Was elected president having only days before resigned as a Minister of Government. He is Dominica's eighth President. Tropical Storm Erika devastated the island in August 2015, killing 30 and causing severe environmental and economic damage. Dominica was again struck on 18 September 2017, suffering a direct landfall from Category 5 Hurricane Maria . Early estimates of damage suggested 90% of

13800-536: Was governed as part of the British Windward Islands . Caribbean islands sought independence from 1958 to 1962, and Dominica became a province of the short-lived West Indies Federation in 1958. After the federation dissolved in 1962, Dominica became an associated state of the United Kingdom in 1967, and formally took responsibility for its internal affairs. On 3 November 1978, the Commonwealth of Dominica

13920-535: Was granted independence as a republic , led by Prime Minister Patrick John . In mid-1979, political discontent with founding prime minister Patrick John's administration climaxed in a civilian coup and ended in the passage of a Motion of No Confidence in the House of Assembly, Dominica's legislature, against John, collapsing the John administration. A new, so-called "Interim Government" was formed under Dominica's second Prime Minister Oliver Seraphin ; Seraphin's main task

14040-564: Was re-established in 1896. In World War I , many Dominicans, mainly the sons of small farmers, volunteered to fight in Europe for the British Empire. After the war, an upsurge of political consciousness throughout the Caribbean led to the formation of the Representative Government Association . Marshaling public frustration with the lack of a voice in governing Dominica, this group won one-third of

14160-595: Was to prepare the country for fresh general elections constitutionally due in 1980, hence the unofficial title "Interim" Prime Minister. Seraphin organized and led a splinter of the Dominica Labour Party called the Democratic Labour Party into the 1980 general election and lost mainly because his nearly 13 month-long premiership was dominated by the fallout from Category Five Hurricane David , which caused 56 deaths and untold damage across

14280-557: Was unable to restore banana to its former selling price and prestige. Moreover, the James administration became embroiled in Opposition charges of official corruption. In the 31 January 2000 general election , the UWP were defeated by a coalition of the DLP, led by left-leaning Roosevelt B. "Rosie" Douglas and the Dominica Freedom Party led by former trade union leader, Charles Savarin . Douglas became prime minister. One UWP member of

14400-596: Was very warm, with crocodilians and temperate plants thriving north of the Arctic Circle . The cooling trend that began in the middle Eocene continued into the Oligocene, bringing both poles well below freezing for the first time in the Phanerozoic . The cooling climate, together with the opening of some land bridges and the closing of others, led to a profound reorganization of the biosphere and loss of taxonomic diversity. Land animals and marine organisms reached

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