The Southwest Shelf Transition , also known as the Houtman marine ecoregion , is a biogeographic region of Australia 's continental shelf and coastal waters. It includes the subtropical coastal waters of Southwest Australia .
60-528: The Southwest Shelf Transition includes the coastal waters and continental shelf of the west coast of Western Australia , extending from Kalbarri to Perth , and including the Houtman Abrolhos archipelago. It is a transitional zone between the subtropical Central Western Shelf Province to the north, and the warm temperate Southwest Shelf Province to the south. The warm Leeuwin Current runs southwards along
120-628: A pewter plate to a post, now known as the Hartog plate , on which he scratched a record of his visit to the island. Its inscription (translated from the original Dutch ) read: Finding nothing of interest, Hartog continued sailing northwards along this previously uncharted coastline of Western Australia, making nautical charts up to about 22° latitude south. He then left the coast and continued on to Batavia, eventually arriving safely in December 1616, some five months after his expected arrival. Dirk Hartog left
180-540: A campaign led by Forrest, electors of the colony of Western Australia voted in favour of federation with the five other Australian colonies, resulting in Western Australia officially becoming a state on 1 January 1901. Western Australia is bounded to the east by longitude 129°E, the meridian 129 degrees east of Greenwich, which defines the border with South Australia and the Northern Territory , and bounded by
240-683: A capacity of 23,200 cubic metres per day (146,000 barrels per day) until its closure in 2021, producing most of the state's petrol and diesel. Kwinana also hosts alumina and nickel processing plants, port facilities for grain and other bulk exports, and support industries for mining and petroleum such as heavy and light engineering, and metal fabrication. Shipbuilding (e.g. Austal ) and associated support industries are found at nearby Henderson , just north of Kwinana. Significant secondary industries include cement and building product manufacturing, flour milling, food processing, animal feed production, automotive body building and printing. Western Australia has
300-527: A comparative advantage in resource extraction and processing. As a consequence: In 2019 Western Australia's overseas exports accounted for 46% of the nation's total. The state's major export commodities included iron-ore, petroleum, gold, alumina , nickel, wheat, copper, lithium, chemicals and mineral sands. Western Australia is the world's largest iron-ore producer (34% of the world's total), and extracts 66% (6.9% of world production) of Australia's 306 tonnes (9.8 million troy ounces) of gold in 2022. It
360-689: A fleet voyaging from the Netherlands to the Dutch East Indies . Hartog set sail in January 1616 in the company of several other VOC ships, but became separated from them in a storm, and arrived independently at the Cape of Good Hope (later to become the site of Cape Town , South Africa ). Hartog then set off across the Indian Ocean for Batavia (present-day Jakarta ), utilising (or perhaps blown off course by)
420-454: A further 1,196 species currently recognised but unpublished. They occur within 1,543 genera from 211 families ; there are also 1,276 naturalised alien or invasive plant species, more commonly known as weeds. In the southwest region are some of the largest numbers of plant species for its area in the world. Western Australia's ecoregions include the sandstone gorges of the Kimberley on
480-403: A lack of storage and refrigeration facilities favour live animals over imports of processed meat. About half of Australia's live cattle exports come from Western Australia. Resource sector growth in recent years has resulted in significant labour and skills shortages, leading to recent efforts by the state government to encourage interstate and overseas immigration. According to the 2006 census,
540-634: A northern limit of a number of warm temperate species, and the southern limit of a number of sub-tropical and tropical species. The Houtman Abrolhos is home to the highest concentration of west coast endemic species. The Integrated Marine and Coastal Regionalisation of Australia (IMCRA) identifies two meso-scale bioregions that make up the transition. This bioregion was referred to as the South Western Biotone in Integrated Marine and Coastal Regionalisation of Australia (IMCRA) Version 3.3, and as
600-511: A result, the South West region of the state has a higher concentration of rare, threatened or endangered flora and fauna than many areas of Australia, making it one of the world's biodiversity "hot spots". Large areas of the state's wheatbelt region have problems with dryland salinity and the loss of fresh water. The southwest coastal area has a Mediterranean climate . It was originally heavily forested, including large stands of karri , one of
660-545: A scientific paper, General view of the botany of the vicinity of Swan River . It discusses the vegetation of the Swan River Colony . Europeans began to settle permanently in 1826 when Albany was claimed by Britain to forestall French claims to the western third of the continent. Perth was founded as the Swan River Colony in 1829 by British and Irish settlers, though the outpost languished. Its officials eventually requested convict labour to augment its population. By
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#1733084869687720-623: A significant fishing industry. Products for local consumption and export include western rock lobsters , prawns, crabs, shark and tuna, as well as pearl fishing in the Kimberley region of the state. Processing is conducted along the west coast. Whaling was a key marine industry but ceased at Albany in 1978. Western Australia has the world's biggest plantations of both Indian sandalwood (northern WA) and Australian sandalwood (semi-arid regions), which are used to produce sandalwood oil and incense . The WA sandalwood industry provides about 40% of
780-496: A state rather than a territory or an autonomous region. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley , deserts in the interior (including the Great Sandy Desert , Little Sandy Desert , Gibson Desert , and Great Victoria Desert ) and a Mediterranean climate on the south-west and southern coastal areas. As of 2021, the state has 2.91 million inhabitants—11 percent of
840-447: Is a major world producer of bauxite, which is processed into alumina at four refineries providing 11% of total world production. Until 2020 diamonds were extracted from the world's largest diamond mine in the far north Kimberley region. Coal mined at Collie is the main fuel for baseload electricity generation in the state's south-west. Agricultural production in WA is a major contributor to
900-567: Is currently tilted 10 degrees away from the South Pole towards Western Australia, allowing for aurora australis displays as far north as Geraldton . Western Australia is home to around 630 species of birds (depending on the taxonomy used). Of these around 15 are endemic to the state. The best areas for birds are the southwestern corner of the state and the area around Broome and the Kimberley. The Flora of Western Australia comprises 10,162 published native vascular plant species, along with
960-683: Is housed in the Rijksmuseum . In 2000 the Hartog plate was temporarily returned to Australia as part of an exhibition at the Australian National Maritime Museum in Sydney. This led to suggestions that the plate, considered important as the oldest-known written artefact from Australia's European history, should be acquired for an Australian museum, but the Dutch authorities have made it clear that
1020-610: Is named after Hartog. Born into a seafaring family, he received his first ship's command at the age of 30 and spent several years engaged in successful trading ventures in the Baltic and Mediterranean seas. In 1616, Hartog gained employment with the Dutch East India Company ( Dutch : Vereenigde Oostindische Compagnie , commonly abbreviated to VOC), and was appointed master of the Eendracht (meaning "Concord" or "Unity"), in
1080-473: Is now called Dirk Hartog Island after him. His was the second recorded European expedition to land on the Australian continent, having been preceded by Willem Janszoon in 1606, but the first to do so on the western coastline. Hartog spent three days examining the coast and nearby islands. The area was named Eendrachtsland after his ship, although that name has not endured. Before Hartog left, he affixed
1140-400: Is the northern tropical regions. The Kimberley has an extremely hot monsoonal climate with average annual rainfall ranging from 500 to 1,500 millimetres (20–60 in), but there is a very long almost rainless season from April to November. Eighty-five percent of the state's runoff occurs in the Kimberley, but because it occurs in violent floods and because of the insurmountable poverty of
1200-549: The Freycinet Map of 1811 , the first published map featuring the full outline of Australia. The name New Holland remained in popular and semi-official use until at least the mid-1850s; that is, it was in use for about 206 years in comparison to the name Australia which to date has been in use for about 195 years. The origins of the present state began with the establishment by Lockyer of a convict-supported settlement from New South Wales at King George III Sound . The settlement
1260-624: The Group Settlement Scheme of the 1920s, which encouraged farmers to settle the southwest—increased awareness of Australia's western third as a destination for colonists. Led by immigrants from the British Isles, Western Australia's population developed at a faster rate during the twentieth century than it had previously. After World War II , both the eastern states and Western Australia received large numbers of Italians , Croatians and Macedonians . Despite this, Britain has contributed
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#17330848696871320-1048: The Hamersley Range of the Pilbara region). Most of the state is a low plateau with an average elevation of about 400 metres (1,200 ft), very low relief, and no surface runoff . This descends relatively sharply to the coastal plains, in some cases forming a sharp escarpment (as with the Darling Range/ Darling Scarp near Perth). The extreme age of the landscape has meant that the soils are remarkably infertile and frequently laterised . Even soils derived from granitic bedrock contain an order of magnitude less available phosphorus and only half as much nitrogen as soils in comparable climates in other continents. Soils derived from extensive sandplains or ironstone are even less fertile, nearly devoid of soluble phosphate and deficient in zinc , copper, molybdenum and sometimes potassium and calcium . The infertility of most of
1380-558: The Swan River Colony was established on the Swan River by Captain James Stirling . By 1832, the British settler population of the colony had reached around 1,500, and the official name of the colony was changed to Western Australia on 6 February that year. The two separate townsites of the colony developed slowly into the port city of Fremantle and the state's capital, Perth . York was
1440-568: The earliest known life on land may have been found in 3.48-billion-year-old geyserite and other related mineral deposits (often found around hot springs and geysers ) uncovered in the Pilbara craton. Because the only mountain-building since then has been of the Stirling Range with the rifting from Antarctica , the land is extremely eroded and ancient, with no part of the state above 1,249 metres (4,098 ft) AHD (at Mount Meharry in
1500-415: The eastern states . Western Australia's Indigenous peoples have been present for tens of thousands of years. Dutch explorers visited Western Australia from the 17th century, with Dirk Hartog 's 1616 expedition the first Europeans to make landfall. The British claimed Western Australia in 1827 and established the Swan River Colony with Perth as its capital in 1829. The Western Australian gold rushes of
1560-434: The tallest trees in the world. This agricultural region is one of the nine most bio-diverse terrestrial habitats, with a higher proportion of endemic species than most other equivalent regions. Thanks to the offshore Leeuwin Current , the area is one of the top six regions for marine biodiversity and contains the most southerly coral reefs in the world. Average annual rainfall varies from 300 millimetres (12 in) at
1620-433: The 2016 census, 75.2% of inhabitants spoke only English at home, with the next most common languages being Mandarin (1.9%), Italian (1.2%), Vietnamese (0.8%), Cantonese (0.8%) and Tagalog (0.6%). According to the 2021 census, Christianity is the major religious affiliation in WA, followed by 41.1% of its population. In 1971, Christianity was followed by 85.5% of the population and it has been declining since, while
1680-640: The Indian Ocean to the west and north. The International Hydrographic Organization (IHO) designates the body of water south of the continent as part of the Indian Ocean; in Australia it is officially gazetted as the Southern Ocean . The total length of the state's eastern border is 1,862 km (1,157 mi). There are 20,781 km (12,913 mi) of coastline, including 7,892 km (4,904 mi) of island coastline. The total land area occupied by
1740-606: The Southwest IMCRA Transition in the National Marine Bioregionalisation of Australia . Both Southwest IMCRA Transition and Southwest Shelf Transition are used in IMCRA Version 4.0. Western Australia Western Australia (WA) is the westernmost state of Australia . It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to
1800-525: The burgeoning population on the goldfields. The pipeline, known as the Goldfields Water Supply Scheme , was completed in 1903. C. Y. O'Connor , Western Australia's first engineer-in-chief, designed and oversaw the construction of the pipeline. It carries water 530 km (330 mi) from Perth to Kalgoorlie , and is attributed by historians as an important factor driving the state's population and economic growth. Following
1860-763: The coast around the Margaret River wine-growing area. Going east along the Southern Ocean coast is the Goldfields-Esperance region, including the Esperance mallee and the Coolgardie woodlands inland around town of Coolgardie . Deserts occupy the interior, including the Great Sandy-Tanami desert , Gibson Desert , Great Victoria Desert , and Nullarbor Plain . In 1831 Scottish botanist Robert Brown produced
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1920-540: The coast of what Abel Tasman named New Holland in 1644, usually unintentionally as demonstrated by the many shipwrecks along the coast of ships that deviated from the Brouwer Route (because of poor navigation and storms). By the late 18th century, British and French sailors had begun to explore the Western Australian coast. The Baudin expedition of 1800–03 included the coast of Western Australia and resulted in
1980-407: The coast. The continental shelf is generally narrow. The coastline is affected by moderate-energy swells from the Indian Ocean. Depth ranges from zero to nearly 300 metres, with a mean depth of 41 metres. Geomorphically the seabed is almost entirely shelf, but there is a small area of scarp at the northern limits. The Houtman Abrolhos Archipelago lies about 60 km from the mainland coast, near
2040-620: The edge of the Wheatbelt region to 1,400 millimetres (55 in) in the wettest areas near Northcliffe , but from November to March, evaporation exceeds rainfall, and it is generally very dry. Plants are adapted to this as well as the extreme poverty of all soils. The central two-thirds of the state is arid and sparsely inhabited. The only significant economic activity is mining. Annual rainfall averages less than 300 millimetres (8–10 in), most of which occurs in sporadic torrential falls related to cyclone events in summer. An exception to this
2100-425: The edge of the continental shelf. The archipelago is made up of three groups of low islands. Each group rests on a shallow undersea carbonate platform that includes extensive coral reefs. It is the southernmost coral reef system in the Indian Ocean. Biologically, it is a highly complex transition zone, with many species from other provinces reaching a limit of their range in this bioregion. In particular, it represents
2160-670: The employ of the VOC upon his return to Amsterdam in 1618, resuming private trading ventures in the Baltic. In 1619 Frederik de Houtman , in the VOC ship Dordrecht , and Jacob d'Edel, in another VOC ship Amsterdam , sighted land on the Australian coast near present-day Perth which they called d'Edelsland . After sailing northwards along the coast they made landfall in Eendrachtsland . In his journal, Houtman identified these coasts with Marco Polo 's land of Beach, or Locach , as shown on maps of
2220-406: The first inland settlement in Western Australia, situated 97 kilometres (60 mi) east of Perth and settled on 16 September 1831. York was the staging point for early explorers who discovered the rich gold reserves of Kalgoorlie. Population growth was very slow until significant discoveries of gold were made in the 1890s around Kalgoorlie . In 1887, a new constitution was drafted, providing for
2280-543: The generally shallow soils, the only development has taken place along the Ord River . Snow is rare in the state and typically occurs only in the Stirling Range near Albany , as it is the only mountain range far enough south and sufficiently elevated. More rarely, snow can fall on the nearby Porongurup Range . Snow outside these areas is a major event; it usually occurs in hilly areas of southwestern Australia. The most widespread low-level snow occurred on 26 June 1956 when snow
2340-462: The greatest number of immigrants to this day. Western Australia—particularly Perth—has the highest proportion of British-born of any state: 10.3% in 2011, compared to a national average of 5.1%. This group is heavily concentrated in certain parts, where they account for a quarter of the population. Perth's metropolitan area (including Mandurah ) had an estimated population of 2,043,138 in June 2017 (79% of
2400-582: The international sandalwood oil market. In recent years, tourism has grown in importance, with significant numbers of visitors to the state coming from the UK and Ireland (28%), other European countries (14%) Singapore (16%), Japan (10%) and Malaysia (8%). Revenue from tourism is a strong economic driver in many of the smaller population centres outside of Perth, especially in coastal locations. Dirk Hartog Dirk Hartog ( Dutch: [ˈdɪr(ə)k ˈɦɑrtɔx] ; baptised 30 October 1580 – buried 11 October 1621)
2460-410: The late 19th century resulted in a significant population influx. The colony was granted responsible government in 1890, the last of the Australian colonies to become self-governing, and federated with the other colonies in 1901. Western Australia's mining sector is a key driver of the state economy . The late 20th century saw the development of the state's significant iron ore mining industry –
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2520-431: The median individual income was A$ 500 per week in Western Australia (compared to A$ 466 in Australia as a whole). The median family income was A$ 1246 per week (compared to A$ 1171 for Australia). Recent growth has also contributed to significant rises in average property values in 2006, although values plateaued in 2007. Located south of Perth, the heavy industrial area of Kwinana had the nation's largest oil refinery with
2580-521: The national total. Over 90 percent of the state's population live in the south-west corner and around 80 percent live in the state capital Perth , leaving the remainder of the state sparsely populated. The Trans-Australian Railway and the Eyre Highway traverse the Nullarbor Plain in the state's south-east, providing the principal connection between Western Australia and the population centres in
2640-547: The north-east, and South Australia to the south-east. Western Australia is Australia’s largest state, with a land area of 2,527,013 square kilometres (975,685 sq mi), and is also the second-largest subdivision of any country on Earth, surpassed only by the Sakha Republic in eastern Russia, and formerly Northwest Territories in Canada, before the creation of Nunavut. It is also the largest proper subnational entity, being
2700-521: The northern coast, and below that the drier Victoria Plains tropical savanna inland, and the semi-desert Pilbara shrublands , Carnarvon xeric shrublands , and Western Australian mulga shrublands to the southwest. Southwards along the coast are the Southwest Australia savanna and the Swan Coastal Plain around Perth, with the jarrah-karri forest and shrublands on the southwest corner of
2760-443: The percentage of people who identified as having no religious affiliation has increased from 8.7% in 1971 to 42.9% in 2021. A small minority of the population are Muslims (2.5%), Buddhists (2.2%) and Hindus (2.0%). Western Australia's economy is largely driven by extraction and processing of a diverse range of mineral and petroleum commodities. The structure of the economy is closely linked to these natural resources, providing
2820-597: The right of self-governance of European Australians, and in 1890, the act granting self-government to the colony was passed by the British Parliament . John Forrest became the first Premier of Western Australia . In 1896, after discoveries of gold at Coolgardie and Kalgoorlie , the Western Australian Parliament authorised the raising of a loan to construct a pipeline to transport 23 megalitres (5 million imperial gallons) of water per day to
2880-401: The soils has required heavy application by farmers of fertilisers. These have resulted in damage to invertebrate and bacterial populations. The grazing and use of hoofed mammals and, later, heavy machinery through the years have resulted in compaction of soils and great damage to the fragile soils. Large-scale land clearing for agriculture has damaged habitats for native flora and fauna. As
2940-518: The south-west and fishing (including pearling and, historically, whaling ). Western Australia has a geological history dating back to 4.4 billion years ago when Hadean zircons were formed. The earliest direct known life on land, known as stromatolites , started to be created by microbes at around 3.48 billion years ago. The first human inhabitants of Australia arrived from the north "over 50,000 years ago and possibly as much as 70,000 years ago". Over thousands of years they eventually spread across
3000-555: The state and national economy. In the period 2010–2019 wheat production in WA has averaged nearly 10 million tonnes (22 billion pounds), valued at $ 2.816 billion in 2019, accounting for half the nation's total and providing $ 2–3 billion in export income. Other significant farm output includes wool, beef, lamb, barley, canola, lupins, oats and pulses. There is a high level of overseas demand for live animals from WA, driven mainly by southeast Asia's feedlots and Middle Eastern countries, where Islamic dietary laws and
3060-599: The state is 2.5 million km (970 thousand sq mi). The bulk of Western Australia consists of the extremely old Yilgarn craton and Pilbara craton which merged with the Deccan Plateau of India, Madagascar and the Kaapvaal and Zimbabwe cratons of Southern Africa, in the Archean Eon to form Ur , one of the oldest supercontinents on Earth (3 – 3.2 billion years ago). In May 2017, evidence of
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#17330848696873120-451: The state). Other significant population centres include Bunbury (73,989), Geraldton (37,961), Kalgoorlie-Boulder (30,420), Albany (33,998), Karratha (16,446), Broome (14,501) and Port Hedland (14,285). At the 2016 census, the most commonly nominated ancestries were: 3.1% of the population, or 75,978 people, identified as Indigenous Australians ( Aboriginal Australians and Torres Strait Islanders ) in 2016. At
3180-415: The strong westerly winds known as the " Roaring Forties " which had been noted earlier by the Dutch navigator Hendrik Brouwer as enabling a quicker route to Java . On 25 October 1616, at approximately 26° latitude south, Hartog and crew came unexpectedly upon "various islands, which were, however, found uninhabited." He made landfall at an island off the coast of Shark Bay , Western Australia , which
3240-537: The time transportation ceased in 1868, convicts outnumbered free settlers 9,700 to 7,300. In the 1890s, interstate immigration, resulting from a mining boom in the Goldfields region , resulted in a sharp population increase. Western Australia did not receive significant flows of immigrants from Britain, Ireland or elsewhere in the British Empire until the early 20th century. At that time, its local projects—such as
3300-463: The time such as that of Petrus Plancius and Jan Huyghen van Linschoten . Eighty years later, on 4 February 1697, the Dutch explorer Willem de Vlamingh landed on the island and by chance found the Hartog plate, which lay half-buried in sand. He replaced it with a new plate which reproduced Hartog's original inscription and added notes of his own, and took Hartog's original back to Amsterdam , where it
3360-512: The whole landmass. These Indigenous Australians were long established throughout Western Australia by the time European explorers began to arrive in the early 17th century. The first Europeans to visit Western Australia were those of the Dutch Dirk Hartog expedition, who on 25 October 1616 landed at what is now known as Cape Inscription, Dirk Hartog Island . For the rest of the 17th century, other Dutch and British navigators encountered
3420-473: The world's largest – as well as primarily offshore petroleum and natural gas resources . Gold mining retains a significant presence and many other mineral commodities are mined, with Perth being a major centre for associated services. Outside of mining, primary industry is the other significant contributor to the state's economy, including agriculture in the Wheatbelt and temperate southern coastal regions, pastoralism in marginal grassland areas, forestry in
3480-507: Was a 17th-century Dutch sailor and explorer . Dirk Hartog's expedition was the second European group to land in Australia and the first to leave behind an artifact to record his visit, the Hartog Plate . His name is sometimes alternatively spelled Dirck Hartog or Dierick Hartochsz . Ernest Giles referred to him as Theodoric Hartog . The Western Australian island Dirk Hartog Island
3540-517: Was formally annexed on 21 January 1827 by Lockyer when he commanded the Union Jack be raised and a feu de joie fired by the troops. The settlement was founded in response to British concerns about the possibility of a French colony being established on the coast of Western Australia. On 7 March 1831 it was transferred to the control of the Swan River Colony, and named Albany in 1832. In 1829
3600-636: Was reported in the Perth Hills , as far north as Wongan Hills and as far east as Salmon Gums . However, even in the Stirling Range, snowfalls rarely exceed 5 cm (2 in) and rarely settle for more than one day. The highest observed temperature of 50.7 °C (123.3 °F) was recorded in Onslow on 13 January 2022. The lowest temperature recorded was −7.2 °C (19.0 °F) at Eyre Bird Observatory on 17 August 2008. The south geomagnetic pole
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