Geography | |
---|---|
Location | Pacific Ocean |
Coordinates | 21°19′S136°39′W / 21.317°S 136.650°W |
Archipelago | Tuamotus |
Area | 12.6 km2 (4.9 sq mi)(lagoon) 3.8 km2 (1.5 sq mi) (above water) |
Width | 3.6 km (2.24 mi) |
Administration | |
France | |
Overseas collectivity | French Polynesia |
Administrative subdivision | Îles Tuamotu-Gambier |
Commune | Gambier |
Demographics | |
Population | Uninhabited [1] (2012) |
Vahanga is a small uninhabited atoll part of the Acteon Group in the Tuamotu archipelago, French Polynesia and belongs to the municipality of the Gambier Islands.
Vahanga is located 9 km west of Tenarunga and 1362 km southeast of Tahiti. It is a circular atoll with a diameter of 3.6 km and an area of 3.8 km2 (12.6 km2 lagoon inclusive). It is a low atoll with a landing place on the northwest side of the island near a white house, but there is no access to the lagoon.
The first recorded sighting of this atoll was made during the Spanish expedition of the Portuguese navigator Pedro Fernández de Quirós on 5 February 1606 under the name Las Cuatro Coronadas (the "four crowned" (by coconut palms)), [2] [3] however these observations were not fully documented. As such, the first unambiguous approach to the island was made in 1833 by navigator Thomas Ebrill on his merchant vessel Amphitrite and again in 1837 by Lord Edward Russell, commander of the H.M.S Actaeon, the name given to the group. [4] It was previously owned by a man named Captain Nicholas but was redeemed in 1934. [5]
Vahanga hosts a flora composed of coconut trees, Portulaca lutea , [6] Cassytha filiformis , [7] and Amaranthaceae such as the species Achyranthes aspera var. velutina . [8]
In 2007, an ecological project conducted by the University of Auckland and the Ornithological Society of Polynesia aimed to eradicate Vahanga's Polynesian rats, which had colonized the atoll, to restore balance to the ecosystem supporting bird species such as the Polynesian ground-dove and the Tuamotu sandpiper. [9] A previous campaign in 2000 had failed in this goal. [10]
In 2015 a conservation campaign resulted in the eradication of rats from the island. [11]
The Tuamotu Archipelago or the Tuamotu Islands are a French Polynesian chain of just under 80 islands and atolls in the southern Pacific Ocean. They constitute the largest chain of atolls in the world, extending over an area roughly the size of Western Europe. Their combined land area is 850 square kilometres. This archipelago's major islands are Anaa, Fakarava, Hao and Makemo.
The Tuamotu sandpiper is an endangered member of the large wader family Scolopacidae, that is endemic to the Tuamotu Islands in French Polynesia. It is sometimes placed in the monotypic genus Aechmorhynchus. A native name, apparently in the Tuamotuan language, is kivi-kivi.
The Gambier Islands are an archipelago in French Polynesia, located at the southeast terminus of the Tuamotu archipelago. They cover an area of 27.8 km2 or 10.7 sq mi, and are made up of the Mangareva Islands, a group of high islands remnants of a caldera along with islets on the surrounding fringing reef, and the uninhabited Temoe atoll, which is located 45 km south-east of the Mangareva Islands. The Gambiers are generally considered a separate island group from Tuamotu both because their culture and language (Mangarevan) are much more closely related to those of the Marquesas Islands, and because, while the Tuamotus comprise several chains of coral atolls, the Mangareva Islands are of volcanic origin with central high islands.
Hao, or Haorangi, is a large coral atoll in the central part of the Tuamotu Archipelago. It has c. 1000 people living on 35 km2 (14 sq mi). It was used to house the military support base for the nuclear tests on Mururoa. Because of its shape, French explorer Louis Antoine de Bougainville named it "Île de la Harpe".
Matureivavao, or Maturei-vavao is an uninhabited atoll in the Acteon Group in the southeastern part of the Tuamotu Islands. It is the largest atoll within the Acteon Group, and like others in this group, is administratively part of the commune of the Gambier Islands.
Tenararo is the smallest atoll in the Acteon Group in the southeastern part of the Tuamotu Islands in French Polynesia. It is administratively a part of the Gambier Islands. It is uninhabited.
Tenarunga or Tenania, previously Narunga and formerly Minto Island, is a low, wooded atoll in the Acteon Group in the southeastern part of the Tuamotu Islands in French Polynesia. It is administratively a part of the Gambier Islands. The atoll has a population of between 10 and 50 people.
Anaa, Nganaa-nui is an atoll in the Tuamotu archipelago, in French Polynesia. It is located in the north-west of the archipelago, 350 km to the east of Tahiti. It is oval in shape, 29.5 km in length and 6.5 km wide, with a total land area of 38 km2 and a population of 504. The atoll is made up by eleven small barren islands with deeper and more fertile soil than other atolls in the Tuamotus. The lagoon is shallow, without entrance, and formed by three main basins. Although it does not have any navigable access, the water of the lagoon renews by several small channels that can be crossed walking.
Amanu, Timanu, or Karere, is an atoll in the Tuamotu archipelago. Amanu lies at right angles to neighbouring Hao Atoll; this orientation is quite rare for the Tuamotu atolls.
The Polynesian ground dove or Society Islands ground dove or Tutururu is a critically endangered species of bird in the family Columbidae. Originally endemic to the Society Islands and Tuamotus in French Polynesia, it has now been extirpated from most of its former range by habitat loss and predation by introduced species such as cats and rats, and the species is now endemic only in the Acteon islands. The total population is estimated to be around 100-120 birds.
Fakarava, Havaiki-te-araro, Havai'i or Farea is an atoll in the west of the Tuamotu group in French Polynesia. It is the second largest of the Tuamotu atolls. The nearest land is Toau, a coral atoll which lies 14 kilometres to the northwest.
Takume or Pukamaru is an atoll of the Tuamotus chain in French Polynesia, located 790 km northeast of Tahiti and 6 km northeast of Raroia and 128 kilometres to the west of Fangatau.
The Acteon Group is a rather isolated and uninhabited subgroup in the far southeast of the Tuamotu atoll group in French Polynesia. It is located about 1,400 km (870 mi) east-southeast of Tahiti at latitude: 21° 17' 60 S, longitude: 136° 29' W.
Marutea Atoll, also known as Lord Hood Island, Marutea-i-runga, and Nuku-nui, is an atoll in the far southeast of the Tuamotu group of French Polynesia. It lies in the east-northeast part of the Gambier (commune), about 72 km northeast from Maria Atoll.
Tuanake or Mata-rua-puna is a small atoll located in the Tuamotu Archipelago in French Polynesia. It made up the Raevski Islands subgroup with Tepoto Sud and Hiti. It is administratively attached to the municipality of Makemo.
Tauere Atoll or Taouere, also known as Te Putua, is a small atoll of the central Tuamotu Archipelago in French Polynesia. It is located 85 kilometres northwest of Hao Atoll's westernmost point.
Anuanuraro is an atoll in French Polynesia, Pacific Ocean. It is part of the Duke of Gloucester Islands, a subgroup of the Tuamotu group. Anuanuraro's nearest neighbor is Anuanurunga, which is located about 29 km to the southeast.
Temoe, or Te Moe, is a small atoll of the Gambier Islands in French Polynesia. It is located in the far southeast of the Tuamotu group archipelago. It lies about 37 km southeast from the Gambier Islands and more than 1,700 kilometres southeast from Mataiva, at the other end of the Tuamotu archipelago.
The flora of French Polynesia refers to the native vegetation of the Marquesas Islands, the Tuamotu Archipelago, the Society Islands and the Tubuai Islands, located in Oceania. Due to its type of vegetation, French Polynesia falls within the palaeotropic floral kingdom.
The Tuamotu tropical moist forests is a tropical and subtropical moist broadleaf forests ecoregion in the Tuamotu Archipelago of French Polynesia and the Pitcairn Islands.