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Nuʻulua
Nuulua is an island in Samoa (not to be confused with the landmass also called ''Nuulua'' that lies 200 meters west of Ofu in American Samoa). It is located in the Aleipata Islands, somewhat more than 1.3 km from the eastern end of Upolu (a much larger island that is also part of Samoa). Nuulua has a land area of 25 hectares. It is a habitat for locally and regionally endemic birds, including the endangered tooth-billed pigeon (''Didunculus strigirostris''), also known as the ''Samoan pigeon'', and also for an endemic bat (''Pteropus samoensis''). Nuulua and Nu'utele, another island in the Aleipata Islands grouping, are together home to the largest seabird colonies in Samoa, and have been identified as highly significant sites for conservation efforts. One of the efforts is to eradicate these islands’ populations of Pacific rats (''Rattus exulans'') that prey on their native insects, birds and lizards. These islands are remnants of eroded volcanic tuff rings. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleipata Islands
The Aleipata Islands are a group of four uninhabited islands off the eastern end of Upolu Island, Samoa. The islands are eroded volcanic tuff rings, and consist of a small northern pair on Upolu's barrier reef, and a larger southern pair outside it. Collectively the islands have an area of about . Administratively, the islands are part of the Atua district. The islands are important for Samoa's biodiversity and are protected by the Aleipata Marine Protected Area. Geography From north to south, the islands consist of: * Namua (0.20 km2) * Fanuatapu (0.15 km2) * Nuʻutele (1.08 km2) *Nuʻulua (0.25 km2) Namua and Fanuatapu lie at the outer edge of the fringing reef of Upolu, at a distance of 0.7 km and 2.5 km, respectively, from Upolu Island itself. Nuʻutele and Nuʻulua are 4 to 6 km further south, outside the fringing reef, and lie 1.4 km 3.5 km off Cape Tapaga, which is the southeastern headland of Upolu. Only Namua is open for visit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ofu-Olosega
Ofu and Olosega are parts of a volcanic doublet in the Manuʻa Islands, which is a part of American Samoa in the Samoan Islands. These twin islands, formed from shield volcanoes, have a combined length of 6 km and a combined area of . Together, they have a population of about 500 people. Geographically, the islands are volcanic remnants separated by the narrow, ) Āsaga Strait, composed of shallow-water coral reef. Before 1970, people crossed between the two islands by waiting until low tide and then wading across the shallow water of the strait. Since 1970, there has been a bridge over the strait, providing a single-lane road that connects the two islands. The highest peak on Ofu Island is Mount Tumutumu (also called Tumu), at . The highest peak on Olosega is Mount Piumafua, at . The most recent volcanic eruption was in 1866, southeast of Olosega. Pre-historic artifacts discovered on Ofu by archaeological field work in the 1980s significantly furthered understanding of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upolu
Upolu is an island in Samoa, formed by a massive basaltic shield volcano which rises from the seafloor of the western Pacific Ocean. The island is long and in area, making it the second largest of the Samoan Islands by area. With approximately 145,000 inhabitants, it is by far the most populous of the Samoan Islands. Upolu is situated to the southeast of Savai'i, the "big island". Apia, the capital, is in the middle of the north coast, and Faleolo International Airport is at the western end of the island. The island has not had any historically recorded eruptions, although there is evidence of three lava flows, dating back only to between a few hundred and a few thousand years ago. In the Samoan branch of Polynesian mythology, Upolu was the first woman on the island. James Michener based his character Bloody Mary in '' Tales of the South Pacific'' (later a major character in the Rodgers and Hammerstein musical, ''South Pacific'') on the owner of Aggie Grey's Hotel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samoa
Samoa, officially the Independent State of Samoa; sm, Sāmoa, and until 1997 known as Western Samoa, is a Polynesian island country consisting of two main islands (Savai'i and Upolu); two smaller, inhabited islands (Manono Island, Manono and Apolima); and several smaller, uninhabited islands, including the Aleipata Islands (Nu'utele, Nu'ulua, Fanuatapu and Namua). Samoa is located west of American Samoa, northeast of Tonga (closest foreign country), northeast of Fiji, east of Wallis and Futuna, southeast of Tuvalu, south of Tokelau, southwest of Hawaii, and northwest of Niue. The capital city is Apia. The Lapita culture, Lapita people discovered and settled the Samoan Islands around 3,500 years ago. They developed a Samoan language and Samoan culture, Samoan cultural identity. Samoa is a Unitary state, unitary Parliamentary system, parliamentary democracy with 11 Administrative divisions of Samoa, administrative divisions. It is a sovereign state and a member of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism In Birds
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tooth-billed Pigeon
The tooth-billed pigeon (''Didunculus strigirostris''), also known as the ''manumea'', is a large pigeon found only in Samoa. It is the only living species of genus '' Didunculus''. A related extinct species, the Tongan tooth-billed pigeon (''Didunculus placopedetes''), is only known from subfossil remains in several archeological sites in Tonga. The tooth-billed pigeon is the national bird of Samoa and featured on the 20 '' tālā'' bills and the 50 ''sene'' pieces of the 2008/2011 series. Native only to Samoa's primary rainforest, it is considered to be endangered, with only a few hundred individuals thought to remain in existence. Description The tooth-billed pigeon is a medium-sized, approximately 31 cm long, dark pigeon with reddish feet and red bare skin around the eye. The underparts, head and neck are greyish with a slight blue-green iridescence, and the tail, wings-coverts and tertials are rufous chestnut, while the remaining remiges are blackish. It has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuff Ring
Phreatomagmatic eruptions are volcanic eruptions resulting from interaction between magma and water. They differ from exclusively magmatic eruptions and phreatic eruptions. Unlike phreatic eruptions, the products of phreatomagmatic eruptions contain juvenile (magmatic) clasts.Heiken, G. & Wohletz, K. 1985. Volcanic Ash. University of California Press, Berkeley It is common for a large explosive eruption to have magmatic and phreatomagmatic components. Mechanisms Several competing theories exist as to the exact mechanism of ash formation. The most common is the theory of explosive thermal contraction of particles under rapid cooling from contact with water. In many cases the water is supplied by the sea, for example with Surtsey. In other cases the water may be present in a lake or caldera-lake, for example Santorini, where the phreatomagmatic component of the Minoan eruption was a result of both a lake and later the sea. There have also been examples of interaction between magma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samoa Islands
The Samoan Islands ( sm, Motu o Sāmoa) are an archipelago covering in the central South Pacific, forming part of Polynesia and of the wider region of Oceania. Administratively, the archipelago comprises all of the Independent State of Samoa and most of American Samoa (apart from Swains Island, which is geographically part of the Tokelau Islands). The land masses of the two Samoan jurisdictions are separated by of ocean at their closest points. The population of the Samoan Islands is approximately 250,000. The inhabitants have in common the Samoan language, a culture known as '' fa'a Samoa,'' and an indigenous form of governance called '' fa'amatai''. Samoans are one of the largest Polynesian populations in the world, and most are of exclusively Samoan ancestry. The oldest known evidence of human activity in the Samoan Islands dates to around 1050 BCE. It comes from a Lapita site at Mulifanua wharf on Upolu island. In 1768, the eastern islands were visited by the French expl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands
This is a list of the lists of islands in the world grouped by country, by continent, by body of water A body of water or waterbody (often spelled water body) is any significant accumulation of water on the surface of Earth or another planet. The term most often refers to oceans, seas, and lakes, but it includes smaller pools of water such ..., and by other classifications. For rank-order lists, see the other lists of islands below. Lists of islands by country Africa Antarctica Asia Europe North America Oceania South America Lists of islands by continent Lists of islands by body of water By ocean: By other bodies of water: List of ancient islands Other lists of islands External links Island Superlatives {{DEFAULTSORT:List Of Islands * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Island
A desert island, deserted island, or uninhabited island, is an island, islet or atoll that is not permanently populated by humans. Uninhabited islands are often depicted in films or stories about shipwrecked people, and are also used as stereotypes for the idea of " paradise". Some uninhabited islands are protected as nature reserves, and some are privately owned. Devon Island in Canada's far north is the largest uninhabited island in the world. Small coral atolls or islands usually have no source of fresh water, but occasionally a freshwater lens can be reached with a well. Terminology Uninhabited islands are sometimes also called "deserted islands" or "desert islands". In the latter, the adjective ''desert'' connotes not desert climate conditions, but rather "desolate and sparsely occupied or unoccupied". The word ''desert'' has been "formerly applied more widely to any wild, uninhabited region, including forest-land", and it is this archaic meaning that appears in the ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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