The Barat Daya Islands ( id, Kepulauan Barat Daya) are a group of
island
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...
s in the
Maluku province
Maluku is a Provinces of Indonesia, province of Indonesia. It comprises the central and southern regions of the Maluku Islands. The main city and capital of Maluku province is Ambon, Maluku, Ambon on the small Ambon Island. The land area is 62, ...
of
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
. The Indonesian phrase ''barat daya'' means 'south-west'.
Geography
These islands are located off the eastern end of
East Timor
East Timor (), also known as Timor-Leste (), officially the Democratic Republic of Timor-Leste, is an island country in Southeast Asia. It comprises the eastern half of the island of Timor, the exclave of Oecusse on the island's north-weste ...
. Wetar is the largest island in the group. To the west, the
Ombai Strait
Ombai Strait ( id, Selat Ombai, pt, Estreito de Ombai, tet, Estreitu Ombai) is an international strait in Southeast Asia. It separates the Alor Archipelago from the islands of Wetar, Atauro, and Timor in the Lesser Sunda Islands. The strait ...
separates Wetar from
Alor Island
Alor ( id, Pulau Alor) is the largest island in the Alor Archipelago and is one of the 92 officially listed outlying islands of Indonesia. It is located at the eastern Lesser Sunda Islands that runs through southeastern Indonesia, which from ...
, part of
East Nusa Tenggara
East Nusa Tenggara ( id, Nusa Tenggara Timur – NTT; pt, Sonda Oriental) is the southernmost province of Indonesia. It comprises the eastern portion of the Lesser Sunda Islands, facing the Indian Ocean in the south and the Flores Sea in the nor ...
. The
Wetar Strait
Wetar Strait ( id, Selat Wetar, pt, Estreito de Wetar, tet, Estreitu Wetar) is an international strait in Southeast Asia. It separates the island of Wetar from the eastern part of the island of Timor. The strait is also the eastern portion ...
separates Wetar from
Timor
Timor is an island at the southern end of Maritime Southeast Asia, in the north of the Timor Sea. The island is East Timor–Indonesia border, divided between the sovereign states of East Timor on the eastern part and Indonesia on the western p ...
to the south.
Even though included in the Indonesian Maluku province political division, the southwestern islands are geographically part of the
Lesser Sunda Islands
The Lesser Sunda Islands or nowadays known as Nusa Tenggara Islands ( id, Kepulauan Nusa Tenggara, formerly ) are an archipelago in Maritime Southeast Asia, north of Australia. Together with the Greater Sunda Islands to the west they make up t ...
. Rainfall is limited with a dry season between October and December when some of the islands appear as dry savannah. The Barat Daya Islands except Wetar are part of the
Banda Sea Islands moist deciduous forests
The Banda Sea Islands moist deciduous forests is a tropical moist forest ecoregion in Indonesia. The ecoregion includes several island groups in the southwestern Banda Sea, including the Tanimbar Islands, Kai Islands, and the Barat Daya Islands e ...
ecoregion
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of l ...
. Wetar and Timor comprise the
Timor and Wetar deciduous forests
The Timor and Wetar deciduous forests is a tropical dry forest ecoregion in Indonesia and East Timor. The ecoregion includes the islands of Timor, Wetar, Rote, Savu, and adjacent smaller islands.
Geography
Timor, Wetar, Rote, and Savu are pa ...
ecoregion. Most of the islands are barren, infertile and minimally forested.
Together with
Timor
Timor is an island at the southern end of Maritime Southeast Asia, in the north of the Timor Sea. The island is East Timor–Indonesia border, divided between the sovereign states of East Timor on the eastern part and Indonesia on the western p ...
,
Nusa Tenggara
The Lesser Sunda Islands or nowadays known as Nusa Tenggara Islands ( id, Kepulauan Nusa Tenggara, formerly ) are an archipelago in Maritime Southeast Asia, north of Australia. Together with the Greater Sunda Islands to the west they make up t ...
,
Sulawesi
Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
, and most of Maluku, the Barat Daya Islands are part of
Wallacea
Wallacea is a biogeographical designation for a group of mainly Indonesian islands separated by deep-water straits from the Asian and Australian continental shelves. Wallacea includes Sulawesi, the largest island in the group, as well as Lo ...
, the group of Indonesian islands that are separated by deep water from both the Australian and Asian continental shelves. The islands of Wallacea have never been linked by land to either
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
or
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
, and as a result have few mammals and a mix of flora and fauna from both continents.
Islands
Among the islands within the archipelago are (from west to east):
*
Liran
Liran ( id, Pulau Liran, ) is a small island off the southwest coast of Wetar Island, Indonesia. Administratively it is part of West Wetar District (''Kecamatan Wetar Barat'') within the Southwest Maluku Regency (''Kabupaten Maluku Barat Daya''). ...
*
Wetar
Wetar is a tropical island which belongs to the Indonesian province of Maluku and is the largest island of the Maluku Barat Daya Islands (literally ''Southwest Islands'') of the Maluku Islands. It lies east of the Lesser Sunda Islands, which in ...
*
Kisar
Kisar, also known as ''Yotowawa'', is a small island in the Southwestern Moluccas in Indonesia, located to the northeast of Timor Island. Most of the island is included within the Southernmost Islands District ('' Kecamatan Pulau Pulau Terselata ...
*
Nyata
Nyata is an island in the Barat Daya Islands in the Banda Sea. It is northwest of Romang, in the Banda Sea
The Banda Sea ( id, Laut Banda, pt, Mar de Banda, tet, Tasi Banda) is one of four seas that surround the Maluku Islands of Indonesia ...
*
Romang
*
Leti Islands The Letti Islands () of Indonesia are part of the Maluku Islands, in southwest Maluku Province. (The spelling Leti Islands is also used sometimes.) They are also called the "Lemola" Archipelago, from the initial two letters of each of the three main ...
(Leti, Moa, Lakor)
*
Sermata Islands
*
Damer
*
Babar Islands
The Babar Islands ''(''Indonesian: ''Kepulauan Babar)'' are located in Maluku Province, Indonesia between latitudes 7 degrees 31 minutes South to 8 degrees 13 minutes South and from longitudes 129 degrees 30 minutes East to 130 degrees 05 minutes ...
Populated places
*
Layoni (Teun Island)
Geology
The islands are part of the
Inner Banda Arc
The Banda Arc (main arc, Inner, and Outer) is a set of island arcs in eastern Indonesia. It is the result of the collision of a continent and an intra-oceanic island arc. The presently active arc is located on what appears to be oceanic crust wh ...
, a volcanic
island arc
Island arcs are long chains of active volcanoes with intense seismic activity found along convergent tectonic plate boundaries. Most island arcs originate on oceanic crust and have resulted from the descent of the lithosphere into the mantle alon ...
created by the collision of the
Indo-Australian Plate
The Indo-Australian Plate is a major tectonic plate that includes the continent of Australia and the surrounding ocean and extends northwest to include the Indian subcontinent and the adjacent waters. It was formed by the fusion of the Indian an ...
and the
Eurasian Plate
The Eurasian Plate is a tectonic plate that includes most of the continent of Eurasia (a landmass consisting of the traditional continents of Europe and Asia), with the notable exceptions of the Indian subcontinent, the Arabian subcontinent and ...
. Romang and Damar are volcanic; Wetar consists mostly of oceanic crust that was pushed to the surface by the colliding plates. The Barat Daya and Banda islands constitute an inner arc; the outer arc, which includes Timor, the
Tanimbar Islands
The Tanimbar Islands, also called ''Timur Laut'', are a group of about 65 islands in the Maluku (province), Maluku Provinces of Indonesia, province of Indonesia. The largest and most central of the islands is Yamdena; others include Selaru to t ...
, and the
Kai Islands
The Kai Islands (also Kei Islands) of Indonesia are a group of islands in the southeastern part of the Maluku Islands, located in the province of Maluku (province), Maluku. The Moluccas have been known as the Spice Islands due to regionally sp ...
, is mostly made up of oceanic crust lifted up by the collision, and wraps around south and east of the inner arc.
History
Unlike much of the rest of the Maluku Islands, the Barat Daya Islands did not participate in the inter-island trade over the centuries. Damar was the region's only island to have produced spice. Too remote from the centre of the Malukan spice trade, the Dutch destroyed the nutmeg trees on Babar. Bugis and Makarassarese annually sailed to coral-rich Luang to purchase reef products such as
trepang and
mother of pearl
Nacre ( , ), also known as mother of pearl, is an organicinorganic composite material produced by some molluscs as an inner shell layer; it is also the material of which pearls are composed. It is strong, resilient, and iridescent.
Nacre is ...
.
Administration
The Maluku Barat Daya Regency is administratively composed of seventeen
districts
A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions o ...
(''kecamatan''), whose areas (in km
2) and 2013 officially estimated populations are listed below.:
[Biro Pusat Statistik, Jakarta, 2015.]
See also
*
Islands of Indonesia
The islands of Indonesia, also known as the Indonesian Archipelago ( id, Kepulauan Indonesia) or Nusantara, may refer either to the islands comprising the country of Indonesia or to the geographical groups which include its islands.
History ...
*
Maluku Islands
The Maluku Islands (; Indonesian: ''Kepulauan Maluku'') or the Moluccas () are an archipelago in the east of Indonesia. Tectonically they are located on the Halmahera Plate within the Molucca Sea Collision Zone. Geographically they are located eas ...
*
Maluku (province)
Maluku is a province of Indonesia. It comprises the central and southern regions of the Maluku Islands. The main city and capital of Maluku province is Ambon on the small Ambon Island. The land area is 62,946 km2, and the total population ...
References
{{authority control
Volcanoes of the Maluku Islands
Archipelagoes of Indonesia
Landforms of Maluku (province)
Inner Banda Arc
Islands of the Maluku Islands