Portal:Western Australia

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The Western Australia Portal

Introduction


The flag of 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 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 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 June 2024, the state has 2.965 million inhabitants—10.9 percent of 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 the eastern states. (Full article...)

Featured articles are displayed here, which represent some of the best content on English Wikipedia.

  • Image 1 Adult, Albany, Western Australia The red-capped parrot (Purpureicephalus spurius) is a species of broad-tailed parrot native to southwestern Australia. It was described by Heinrich Kuhl in 1820, with no subspecies recognised. It has long been classified in its own genus owing to its distinctive elongated beak, though genetic analysis shows that it lies within the lineage of the Psephotellus parrots and that its closest relative is the mulga parrot (Psephotellus varius). Not easily confused with other parrot species, it has a bright crimson crown, green-yellow cheeks, and a distinctive long bill. The wings, back, and long tail are dark green, and the underparts are purple-blue. The adult female is very similar though sometimes slightly duller than the male; her key distinguishing feature is a white stripe on the wing under-surface. Juveniles are predominantly green. Found in woodland and open savanna country, the red-capped parrot is predominantly herbivorous, consuming seeds, particularly of eucalypts, as well as flowers and berries, but insects are occasionally eaten. Nesting takes place in tree hollows, generally of older large trees. Although the red-capped parrot has been shot as a pest and has been affected by land clearing, the population is growing and the species is considered of least-concern by the International Union for Conservation of Nature (IUCN). It has a reputation of being anxious and difficult to breed in captivity. (Full article...)

    Adult, Albany, Western Australia

    The red-capped parrot (Purpureicephalus spurius) is a species of broad-tailed parrot native to southwestern Australia. It was described by Heinrich Kuhl in 1820, with no subspecies recognised. It has long been classified in its own genus owing to its distinctive elongated beak, though genetic analysis shows that it lies within the lineage of the Psephotellus parrots and that its closest relative is the mulga parrot (Psephotellus varius). Not easily confused with other parrot species, it has a bright crimson crown, green-yellow cheeks, and a distinctive long bill. The wings, back, and long tail are dark green, and the underparts are purple-blue. The adult female is very similar though sometimes slightly duller than the male; her key distinguishing feature is a white stripe on the wing under-surface. Juveniles are predominantly green.

    Found in woodland and open savanna country, the red-capped parrot is predominantly herbivorous, consuming seeds, particularly of eucalypts, as well as flowers and berries, but insects are occasionally eaten. Nesting takes place in tree hollows, generally of older large trees. Although the red-capped parrot has been shot as a pest and has been affected by land clearing, the population is growing and the species is considered of least-concern by the International Union for Conservation of Nature (IUCN). It has a reputation of being anxious and difficult to breed in captivity. (Full article...)
  • Image 2 Banksia sceptrum, commonly known as the sceptre banksia, is a plant that grows in Western Australia near the central west coast from Geraldton north through Kalbarri to Hamelin Pool. It extends inland almost to Mullewa. First collected and grown by early settler James Drummond in Western Australia, it was described by Swiss botanist Carl Meissner in 1855. In nature, B. sceptrum grows in deep yellow or pale red sand in tall shrubland, commonly on dunes, being found as a shrub to 5 metres (16 ft) high, though often smaller in exposed areas. It is killed by fire and regenerates by seed, the woody follicles opening with fire. B. sceptrum is one of the most striking yellow-flowered banksias of all. Its tall bright yellow spikes, known as inflorescences, are terminal and well displayed. Flowering is in summer, mainly December and January, though flowers are occasionally seen at other times. (Full article...)

    Banksia sceptrum, commonly known as the sceptre banksia, is a plant that grows in Western Australia near the central west coast from Geraldton north through Kalbarri to Hamelin Pool. It extends inland almost to Mullewa. First collected and grown by early settler James Drummond in Western Australia, it was described by Swiss botanist Carl Meissner in 1855.

    In nature, B. sceptrum grows in deep yellow or pale red sand in tall shrubland, commonly on dunes, being found as a shrub to 5 metres (16 ft) high, though often smaller in exposed areas. It is killed by fire and regenerates by seed, the woody follicles opening with fire. B. sceptrum is one of the most striking yellow-flowered banksias of all. Its tall bright yellow spikes, known as inflorescences, are terminal and well displayed. Flowering is in summer, mainly December and January, though flowers are occasionally seen at other times. (Full article...)
  • Image 3 Banksia scabrella, commonly known as the Burma Road banksia, is a species of woody shrub in the genus Banksia. It is classified in the series Abietinae, a group of several species of shrubs with small round or oval inflorescences. It occurs in a number of isolated populations south of Geraldton, Western Australia, with the largest population being south and east of Mount Adams. Found on sandy soils in heathland or shrubland, it grows to 2 m (7 ft) high and 3 m (10 ft) across with fine needle-like leaves. Appearing in spring and summer, the inflorescences are round to oval in shape and tan to cream with purple styles. Banksia scabrella is killed by fire and regenerates by seed. Originally collected in 1966, B. scabrella was one of several species previously considered to be forms of Banksia sphaerocarpa, before it was finally described by banksia expert Alex George in his 1981 revision of the genus. Like many members of the Abietinae, it is rarely seen in cultivation; however, it has been described as having horticultural potential. (Full article...)

    Banksia scabrella, commonly known as the Burma Road banksia, is a species of woody shrub in the genus Banksia. It is classified in the series Abietinae, a group of several species of shrubs with small round or oval inflorescences. It occurs in a number of isolated populations south of Geraldton, Western Australia, with the largest population being south and east of Mount Adams. Found on sandy soils in heathland or shrubland, it grows to 2 m (7 ft) high and 3 m (10 ft) across with fine needle-like leaves. Appearing in spring and summer, the inflorescences are round to oval in shape and tan to cream with purple styles. Banksia scabrella is killed by fire and regenerates by seed.

    Originally collected in 1966, B. scabrella was one of several species previously considered to be forms of Banksia sphaerocarpa, before it was finally described by banksia expert Alex George in his 1981 revision of the genus. Like many members of the Abietinae, it is rarely seen in cultivation; however, it has been described as having horticultural potential. (Full article...)
  • Image 4 Banksia petiolaris is a rare species of flowering plant in the family Proteaceae native to Western Australia, where it is found in sandy soils in the south coastal regions from Munglinup east to Israelite Bay. It was first described by Victorian state botanist Ferdinand von Mueller in 1864, and no subspecies are recognised. B.  petiolaris is one of several closely related species that will all grow as prostrate shrubs, with horizontal stems and thick, leathery upright leaves. Those of this species can be viable for up to 13 years—the longest-lived of any flowering plant recorded. It bears yellow cylindrical flower spikes, known as inflorescences, up to 16 cm (6+1⁄4 in) high in spring. As the spikes age, they turn grey and develop up to 20 woody seed pods, known as follicles, each. Insects such as bees, wasps and even ants can pollinate the flowers. B. petiolaris is nonlignotuberous, meaning it regenerates by seed after bushfire. B. petiolaris adapts readily to cultivation, growing in well-drained sandy soils in sunny locations. It is suitable for rockeries and as a groundcover. (Full article...)

    Banksia petiolaris is a rare species of flowering plant in the family Proteaceae native to Western Australia, where it is found in sandy soils in the south coastal regions from Munglinup east to Israelite Bay. It was first described by Victorian state botanist Ferdinand von Mueller in 1864, and no subspecies are recognised. B.  petiolaris is one of several closely related species that will all grow as prostrate shrubs, with horizontal stems and thick, leathery upright leaves. Those of this species can be viable for up to 13 years—the longest-lived of any flowering plant recorded. It bears yellow cylindrical flower spikes, known as inflorescences, up to 16 cm (6+14 in) high in spring. As the spikes age, they turn grey and develop up to 20 woody seed pods, known as follicles, each.

    Insects such as bees, wasps and even ants can pollinate the flowers. B. petiolaris is nonlignotuberous, meaning it regenerates by seed after bushfire. B. petiolaris adapts readily to cultivation, growing in well-drained sandy soils in sunny locations. It is suitable for rockeries and as a groundcover. (Full article...)
  • Image 5 Tonkin in 1964 John Trezise Tonkin AC (2 February 1902 – 20 October 1995) was an Australian politician who was the premier of Western Australia from 3 March 1971 to 8 April 1974. A member of the Labor Party, Tonkin had been a minister in the John Willcock, Frank Wise and Bert Hawke governments, and a member of the Western Australian Legislative Assembly from April 1933 to February 1977, making him the longest-serving member of the Parliament of Western Australia as of 2021. Tonkin was born in the Goldfields town of Boulder, Western Australia, the eldest of three children. His family moved several times before returning to Boulder, where he attended Boulder City Central School and Eastern Goldfields High School. After several successive jobs, he graduated from Claremont Teachers College and became a teacher, mainly working in small schools in rural areas. After several unsuccessful attempts to enter state parliament, Tonkin was elected as the member for North-East Fremantle in the 1933 state election. (Full article...)

    Tonkin in 1964

    John Trezise Tonkin AC (2 February 1902 – 20 October 1995) was an Australian politician who was the premier of Western Australia from 3 March 1971 to 8 April 1974. A member of the Labor Party, Tonkin had been a minister in the John Willcock, Frank Wise and Bert Hawke governments, and a member of the Western Australian Legislative Assembly from April 1933 to February 1977, making him the longest-serving member of the Parliament of Western Australia as of 2021.

    Tonkin was born in the Goldfields town of Boulder, Western Australia, the eldest of three children. His family moved several times before returning to Boulder, where he attended Boulder City Central School and Eastern Goldfields High School. After several successive jobs, he graduated from Claremont Teachers College and became a teacher, mainly working in small schools in rural areas. After several unsuccessful attempts to enter state parliament, Tonkin was elected as the member for North-East Fremantle in the 1933 state election. (Full article...)
  • Image 6 Map of Forrest Highway, highlighted in red, and surrounding road network between Perth and Bunbury Forrest Highway is a 95-kilometre-long (59 mi) highway in Western Australia's Peel and South West regions, extending Perth's Kwinana Freeway from east of Mandurah down to Bunbury. Old Coast Road was the original Mandurah–Bunbury route, dating back to the 1840s. Part of that road, and the Australind Bypass around Australind and Eaton, were subsumed by Forrest Highway. The highway begins at Kwinana Freeway's southern terminus in Ravenswood, continues around the Peel Inlet to Lake Clifton, and heads south to finish at Bunbury's Eelup Roundabout. There are a number of at-grade intersections with minor roads in the shires of Murray, Waroona, and Harvey including Greenlands Road and Old Bunbury Road, both of which connect to South Western Highway near Pinjarra. The settlement of Australind by the Western Australian Land Company in 1840–41 prompted the first real need for a good quality road to Perth. A coastal Australind–Mandurah route was completed by 2 November 1842. Though the road was rebuilt by convicts in the 1850s, its importance was already declining. With a new road via Pinjarra at the foothills of the Darling Scarp completed in 1876, and the opening of the Perth−Bunbury railway in 1893, few people travelled up the old coastal road. In the late 1930s there was a proposal to re-establish the road as a tourist route, which could also reduce traffic on the main road along the foothills, but it was put on hold due to World War II. Improvements to Old Coast Road started in the early 1950s, but with little progress made until 1954 when the Main Roads Department approved £1000 worth of works. The name "Old Coast Road" was formally adopted on 27 January 1959, and a sealed road was completed in September 1969. (Full article...)

    Map of Forrest Highway, highlighted in red, and surrounding road network between Perth and Bunbury

    Forrest Highway is a 95-kilometre-long (59 mi) highway in Western Australia's Peel and South West regions, extending Perth's Kwinana Freeway from east of Mandurah down to Bunbury. Old Coast Road was the original Mandurah–Bunbury route, dating back to the 1840s. Part of that road, and the Australind Bypass around Australind and Eaton, were subsumed by Forrest Highway. The highway begins at Kwinana Freeway's southern terminus in Ravenswood, continues around the Peel Inlet to Lake Clifton, and heads south to finish at Bunbury's Eelup Roundabout. There are a number of at-grade intersections with minor roads in the shires of Murray, Waroona, and Harvey including Greenlands Road and Old Bunbury Road, both of which connect to South Western Highway near Pinjarra.

    The settlement of Australind by the Western Australian Land Company in 1840–41 prompted the first real need for a good quality road to Perth. A coastal Australind–Mandurah route was completed by 2 November 1842. Though the road was rebuilt by convicts in the 1850s, its importance was already declining. With a new road via Pinjarra at the foothills of the Darling Scarp completed in 1876, and the opening of the Perth−Bunbury railway in 1893, few people travelled up the old coastal road. In the late 1930s there was a proposal to re-establish the road as a tourist route, which could also reduce traffic on the main road along the foothills, but it was put on hold due to World War II. Improvements to Old Coast Road started in the early 1950s, but with little progress made until 1954 when the Main Roads Department approved £1000 worth of works. The name "Old Coast Road" was formally adopted on 27 January 1959, and a sealed road was completed in September 1969. (Full article...)
  • Image 7 The tammar wallaby (Notamacropus eugenii), also known as the dama wallaby or darma wallaby, is a small macropod native to South and Western Australia. Though its geographical range has been severely reduced since European colonisation, the tammar wallaby remains common within its reduced range and is listed as "Least Concern" by the International Union for Conservation of Nature (IUCN). It has been introduced to New Zealand and reintroduced to some areas of Australia where it had been previously extirpated. Skull variations differentiate between tammar wallabies from Western Australia, Kangaroo Island, and mainland South Australia, making them distinct population groups. The tammar wallaby is among the smallest of the wallabies in the genus Notamacropus. Its coat colour is largely grey. The tammar wallaby has several notable adaptations, including the ability to retain energy while hopping, colour vision, and the ability to drink seawater. A nocturnal species, it spends the nighttime in grassland habitat and the daytime in shrubland. It is also very gregarious and has a seasonal, promiscuous mating pattern. A female tammar wallaby can nurse a joey in her pouch while keeping an embryo in her uterus. The tammar wallaby is a model species for research on marsupials, and on mammals in general. Its genome was sequenced in 2011. (Full article...)

    The tammar wallaby (Notamacropus eugenii), also known as the dama wallaby or darma wallaby, is a small macropod native to South and Western Australia. Though its geographical range has been severely reduced since European colonisation, the tammar wallaby remains common within its reduced range and is listed as "Least Concern" by the International Union for Conservation of Nature (IUCN). It has been introduced to New Zealand and reintroduced to some areas of Australia where it had been previously extirpated. Skull variations differentiate between tammar wallabies from Western Australia, Kangaroo Island, and mainland South Australia, making them distinct population groups.

    The tammar wallaby is among the smallest of the wallabies in the genus Notamacropus. Its coat colour is largely grey. The tammar wallaby has several notable adaptations, including the ability to retain energy while hopping, colour vision, and the ability to drink seawater. A nocturnal species, it spends the nighttime in grassland habitat and the daytime in shrubland. It is also very gregarious and has a seasonal, promiscuous mating pattern. A female tammar wallaby can nurse a joey in her pouch while keeping an embryo in her uterus. The tammar wallaby is a model species for research on marsupials, and on mammals in general. Its genome was sequenced in 2011. (Full article...)
  • Image 8 Group Captain Val Hancock, 1942 Air Marshal Sir Valston Eldridge Hancock, KBE, CB, DFC (31 May 1907 – 29 September 1998) was a senior commander in the Royal Australian Air Force (RAAF). He served as Chief of the Air Staff from 1961 to 1965. A graduate of the Royal Military College, Duntroon, Hancock transferred from the Army to the RAAF in 1929 and qualified as a pilot. His administrative training at Duntroon saw him mainly occupy staff posts, including Deputy Director of Operations and Intelligence at RAAF Headquarters from 1931 to 1935, and Director of Works and Buildings from 1937 to 1939. During the early years of World War II, he commanded No. 1 Bombing and Gunnery School, and held senior planning and administrative positions. He eventually saw combat in the Aitape–Wewak campaign of the Pacific War during 1945. Flying Bristol Beaufort light bombers, he led first No. 100 Squadron, and later No. 71 Wing. His actions earned him the Distinguished Flying Cross. After the war, Hancock became the inaugural commandant of RAAF College. His subsequent positions included Deputy Chief of the Air Staff from 1951 to 1953, Air Member for Personnel from 1953 to 1955, and Air Officer Commanding (AOC) No. 224 Group RAF in Malaya, responsible for all Commonwealth air forces in the region, from 1957 to 1959. Appointed a Companion of the Order of the Bath in 1958, he served as AOC RAAF Operational Command from 1959 to 1961, before being promoted to air marshal and commencing his term as Chief of the Air Staff. He was knighted in 1962. In his role as the Air Force's senior officer, Hancock initiated redevelopment of RAAF Base Learmonth in north Western Australia, as part of a chain of forward airfields for the defence of the continent. He also evaluated potential replacements for the RAAF's English Electric Canberra bomber, finding the American "TFX" (later the General Dynamics F-111) to be the most suitable for Australia's needs, though he did not recommend its immediate purchase due to its early stage of development. After retiring from the military in May 1965, Hancock co-founded the Australia Defence Association. He died in 1998, aged 91. (Full article...)

    Group Captain Val Hancock, 1942

    Air Marshal Sir Valston Eldridge Hancock, KBE, CB, DFC (31 May 1907 – 29 September 1998) was a senior commander in the Royal Australian Air Force (RAAF). He served as Chief of the Air Staff from 1961 to 1965. A graduate of the Royal Military College, Duntroon, Hancock transferred from the Army to the RAAF in 1929 and qualified as a pilot. His administrative training at Duntroon saw him mainly occupy staff posts, including Deputy Director of Operations and Intelligence at RAAF Headquarters from 1931 to 1935, and Director of Works and Buildings from 1937 to 1939. During the early years of World War II, he commanded No. 1 Bombing and Gunnery School, and held senior planning and administrative positions. He eventually saw combat in the Aitape–Wewak campaign of the Pacific War during 1945. Flying Bristol Beaufort light bombers, he led first No. 100 Squadron, and later No. 71 Wing. His actions earned him the Distinguished Flying Cross.

    After the war, Hancock became the inaugural commandant of RAAF College. His subsequent positions included Deputy Chief of the Air Staff from 1951 to 1953, Air Member for Personnel from 1953 to 1955, and Air Officer Commanding (AOC) No. 224 Group RAF in Malaya, responsible for all Commonwealth air forces in the region, from 1957 to 1959. Appointed a Companion of the Order of the Bath in 1958, he served as AOC RAAF Operational Command from 1959 to 1961, before being promoted to air marshal and commencing his term as Chief of the Air Staff. He was knighted in 1962. In his role as the Air Force's senior officer, Hancock initiated redevelopment of RAAF Base Learmonth in north Western Australia, as part of a chain of forward airfields for the defence of the continent. He also evaluated potential replacements for the RAAF's English Electric Canberra bomber, finding the American "TFX" (later the General Dynamics F-111) to be the most suitable for Australia's needs, though he did not recommend its immediate purchase due to its early stage of development. After retiring from the military in May 1965, Hancock co-founded the Australia Defence Association. He died in 1998, aged 91. (Full article...)
  • Image 9 View along Clackline Bridge in 2012, with the Goldfields Pipeline visible in the background Clackline Bridge is a road bridge in Clackline, Western Australia, 77 kilometres (48 mi) east of Perth in the Shire of Northam, that carried the Great Eastern Highway until 2008. It is the only bridge in Western Australia to have spanned both a waterway and railway, the Clackline Brook and the former Eastern Railway alignment. The mainly timber bridge has a unique curved and sloped design, due to the difficult topography and the route of the former railway. The bridge was designed in 1934 to replace two dangerous rail crossings and a rudimentary water crossing. Construction began in January 1935, and was completed relatively quickly, with the opening ceremony held in August 1935. The bridge has undergone various improvement and maintenance works since then, including widening by three metres (10 ft) in 1959–60, but remained a safety hazard, with increasing severity and numbers of accidents through the 1970s and 1980s. Planning for a highway bypass of Clackline and the Clackline Bridge began in the 1990s, and it was constructed between January 2007 and February 2008. The local community had been concerned that the historic bridge would be lost, but it remains in use as part of the local road network, and has been listed on both the Northam Municipal Heritage Inventory and the Heritage Council of Western Australia's Register of Heritage Places. (Full article...)

    View along Clackline Bridge in 2012, with the Goldfields Pipeline visible in the background

    Clackline Bridge is a road bridge in Clackline, Western Australia, 77 kilometres (48 mi) east of Perth in the Shire of Northam, that carried the Great Eastern Highway until 2008. It is the only bridge in Western Australia to have spanned both a waterway and railway, the Clackline Brook and the former Eastern Railway alignment. The mainly timber bridge has a unique curved and sloped design, due to the difficult topography and the route of the former railway. The bridge was designed in 1934 to replace two dangerous rail crossings and a rudimentary water crossing. Construction began in January 1935, and was completed relatively quickly, with the opening ceremony held in August 1935. The bridge has undergone various improvement and maintenance works since then, including widening by three metres (10 ft) in 1959–60, but remained a safety hazard, with increasing severity and numbers of accidents through the 1970s and 1980s. Planning for a highway bypass of Clackline and the Clackline Bridge began in the 1990s, and it was constructed between January 2007 and February 2008. The local community had been concerned that the historic bridge would be lost, but it remains in use as part of the local road network, and has been listed on both the Northam Municipal Heritage Inventory and the Heritage Council of Western Australia's Register of Heritage Places. (Full article...)
  • Image 10 The Kwinana Freeway is a 72-kilometre (45 mi) freeway in and beyond the southern suburbs of Perth, Western Australia, linking central Perth with Mandurah to the south. It is the central section of State Route 2, which continues north as Mitchell Freeway to Clarkson, and south as Forrest Highway towards Bunbury. A 4-kilometre (2.5 mi) section between Canning and Leach highways is also part of National Route 1. Along its route are interchanges with several major roads, including Roe Highway and Mandjoogoordap Drive. The northern terminus of the Kwinana Freeway is at the Narrows Bridge, which crosses the Swan River, and the southern terminus is at Pinjarra Road, east of Mandurah. Planning for the Kwinana Freeway began in the 1950s, and the first segment in South Perth was constructed between 1956 and 1959. The route has been progressively widened and extended south since then. During the 1980s, the freeway was extended to South Street in Murdoch, and in June 2001, it reached Safety Bay Road in Baldivis. The final extension began as the New Perth Bunbury Highway project, constructed between December 2006 and September 2009. In early 2009, the section north of Pinjarra Road was named as part of the Kwinana Freeway, with the remainder named Forrest Highway. The freeway has been adapted to cater for public transport, with the introduction of bus priority measures in 1987, and the 2007 opening of the Mandurah railway line, constructed in the freeway median strip. (Full article...)
    The Kwinana Freeway is a 72-kilometre (45 mi) freeway in and beyond the southern suburbs of Perth, Western Australia, linking central Perth with Mandurah to the south. It is the central section of State Route 2, which continues north as Mitchell Freeway to Clarkson, and south as Forrest Highway towards Bunbury. A 4-kilometre (2.5 mi) section between Canning and Leach highways is also part of National Route 1. Along its route are interchanges with several major roads, including Roe Highway and Mandjoogoordap Drive. The northern terminus of the Kwinana Freeway is at the Narrows Bridge, which crosses the Swan River, and the southern terminus is at Pinjarra Road, east of Mandurah.

    Planning for the Kwinana Freeway began in the 1950s, and the first segment in South Perth was constructed between 1956 and 1959. The route has been progressively widened and extended south since then. During the 1980s, the freeway was extended to South Street in Murdoch, and in June 2001, it reached Safety Bay Road in Baldivis. The final extension began as the New Perth Bunbury Highway project, constructed between December 2006 and September 2009. In early 2009, the section north of Pinjarra Road was named as part of the Kwinana Freeway, with the remainder named Forrest Highway. The freeway has been adapted to cater for public transport, with the introduction of bus priority measures in 1987, and the 2007 opening of the Mandurah railway line, constructed in the freeway median strip. (Full article...)
  • Image 11 Banksia verticillata, commonly known as granite banksia or Albany banksia, is a species of shrub or (rarely) tree of the genus Banksia in the family Proteaceae. It is native to the southwest of Western Australia and can reach up to 3 m (10 ft) in height. It can grow taller to 5 m (16 ft) in sheltered areas, and much smaller in more exposed areas. This species has elliptic green leaves and large, bright golden yellow inflorescences or flower spikes, appearing in summer and autumn. The New Holland honeyeater (Phylidonyris novaehollandiae) is the most prominent pollinator, although several other species of honeyeater, as well as bees, visit the flower spikes. A declared vulnerable species, it occurs in two disjunct populations on granite outcrops along the south coast of Western Australia, with the main population near Albany and a smaller population near Walpole, and is threatened by dieback (Phytophthora cinnamomi) and aerial canker (Zythiostroma). B. verticillata is killed by bushfire and new plants regenerate from seed afterwards. Populations take over a decade to produce seed and fire intervals of greater than twenty years are needed to allow the canopy seed bank to accumulate. (Full article...)

    Banksia verticillata, commonly known as granite banksia or Albany banksia, is a species of shrub or (rarely) tree of the genus Banksia in the family Proteaceae. It is native to the southwest of Western Australia and can reach up to 3 m (10 ft) in height. It can grow taller to 5 m (16 ft) in sheltered areas, and much smaller in more exposed areas. This species has elliptic green leaves and large, bright golden yellow inflorescences or flower spikes, appearing in summer and autumn. The New Holland honeyeater (Phylidonyris novaehollandiae) is the most prominent pollinator, although several other species of honeyeater, as well as bees, visit the flower spikes.

    A declared vulnerable species, it occurs in two disjunct populations on granite outcrops along the south coast of Western Australia, with the main population near Albany and a smaller population near Walpole, and is threatened by dieback (Phytophthora cinnamomi) and aerial canker (Zythiostroma). B. verticillata is killed by bushfire and new plants regenerate from seed afterwards. Populations take over a decade to produce seed and fire intervals of greater than twenty years are needed to allow the canopy seed bank to accumulate. (Full article...)
  • Image 12 inflorescences and leaves. Banksia brownii, commonly known as feather-leaved banksia or Brown's banksia, is a species of shrub that grows in southwest Western Australia. A plant with fine feathery leaves and large red-brown flower spikes, it usually grows as an upright bush around two metres (6.6 ft) high, but can also occur as a small tree or a low spreading shrub. First collected in 1829 and published the following year, it is placed in Banksia subgenus Banksia, section Oncostylis, series Spicigerae. There are two genetically distinct forms. Banksia brownii occurs naturally only in two population clusters between Albany and the Stirling Range in southwest Western Australia. In the Stirling Range it occurs among heath on rocky mountain slopes; further south it occurs among jarrah woodland in shallow nutrient-poor sand. It has been evaluated as critically endangered by the International Union for Conservation of Nature (IUCN); all major populations are threatened by Phytophthora cinnamomi dieback, a disease to which the species is highly susceptible. Other threats include loss of habitat, commercial exploitation and changes to the fire regime. Highly valued by Australia's horticultural and cut flower industries, B. brownii is widely cultivated in areas not exposed to dieback. It prefers a sheltered position in soil with good drainage, and must be provided with some moisture over summer. (Full article...)

    inflorescences and leaves.

    Banksia brownii, commonly known as feather-leaved banksia or Brown's banksia, is a species of shrub that grows in southwest Western Australia. A plant with fine feathery leaves and large red-brown flower spikes, it usually grows as an upright bush around two metres (6.6 ft) high, but can also occur as a small tree or a low spreading shrub. First collected in 1829 and published the following year, it is placed in Banksia subgenus Banksia, section Oncostylis, series Spicigerae. There are two genetically distinct forms.

    Banksia brownii occurs naturally only in two population clusters between Albany and the Stirling Range in southwest Western Australia. In the Stirling Range it occurs among heath on rocky mountain slopes; further south it occurs among jarrah woodland in shallow nutrient-poor sand. It has been evaluated as critically endangered by the International Union for Conservation of Nature (IUCN); all major populations are threatened by Phytophthora cinnamomi dieback, a disease to which the species is highly susceptible. Other threats include loss of habitat, commercial exploitation and changes to the fire regime. Highly valued by Australia's horticultural and cut flower industries, B. brownii is widely cultivated in areas not exposed to dieback. It prefers a sheltered position in soil with good drainage, and must be provided with some moisture over summer. (Full article...)
  • Image 13 Site of nuclear weapons test is about 220 metres (720 ft) off Trimouille Island, about 140 kilometres (87 mi) west-northwest of Karratha Operation Hurricane was the first test of a British atomic device. A plutonium implosion device was detonated on 3 October 1952 in Main Bay, Trimouille Island, in the Montebello Islands in Western Australia. With the success of Operation Hurricane, the United Kingdom became the third nuclear power, after the United States and the Soviet Union. During the Second World War, Britain commenced a nuclear weapons project, code-named Tube Alloys, but the 1943 Quebec Agreement merged it with the American Manhattan Project. Several key British scientists worked on the Manhattan Project, but after the war the American government ended cooperation on nuclear weapons. In January 1947, a cabinet sub-committee decided to resume British efforts to build nuclear weapons, in response to an apprehension of American isolationism and fears of Britain losing its great power status. The project was called High Explosive Research, and was directed by Lord Portal, with William Penney in charge of bomb design. (Full article...)

    Site of nuclear weapons test is about 220 metres (720 ft) off Trimouille Island, about 140 kilometres (87 mi) west-northwest of Karratha

    Operation Hurricane was the first test of a British atomic device. A plutonium implosion device was detonated on 3 October 1952 in Main Bay, Trimouille Island, in the Montebello Islands in Western Australia. With the success of Operation Hurricane, the United Kingdom became the third nuclear power, after the United States and the Soviet Union.

    During the Second World War, Britain commenced a nuclear weapons project, code-named Tube Alloys, but the 1943 Quebec Agreement merged it with the American Manhattan Project. Several key British scientists worked on the Manhattan Project, but after the war the American government ended cooperation on nuclear weapons. In January 1947, a cabinet sub-committee decided to resume British efforts to build nuclear weapons, in response to an apprehension of American isolationism and fears of Britain losing its great power status. The project was called High Explosive Research, and was directed by Lord Portal, with William Penney in charge of bomb design. (Full article...)
  • Image 14 Female, Taronga Zoo Carnaby's black cockatoo (Zanda latirostris), also known as the short-billed black cockatoo, is a large black cockatoo endemic to southwest Australia. It was described in 1948 by naturalist Ivan Carnaby. Measuring 53–58 cm (21–23 in) in length, it has a short crest on the top of its head. Its plumage is mostly greyish black, and it has prominent white cheek patches and a white tail band. The body feathers are edged with white giving a scalloped appearance. Adult males have a dark grey beak and pink eye-rings. Adult females have a bone-coloured beak, grey eye-rings and ear patches that are paler than those of the males. This cockatoo usually lays a clutch of one to two eggs. It generally takes 28 to 29 days for the female to incubate the eggs, and the young fledge ten to eleven weeks after hatching. The young will stay with the family until the next breeding season, and sometimes even longer. The family leaves the nesting site after the young fledge until the following year. Carnaby's black cockatoo forms flocks when not breeding, with birds in drier habitats usually being more migratory than those in wetter ones. It flies with deep and slow wingbeats, generally high above trees. Seeds of plants of the families Proteaceae and, to a lesser extent, Myrtaceae form a large part of its diet. (Full article...)

    Female, Taronga Zoo

    Carnaby's black cockatoo (Zanda latirostris), also known as the short-billed black cockatoo, is a large black cockatoo endemic to southwest Australia. It was described in 1948 by naturalist Ivan Carnaby. Measuring 53–58 cm (21–23 in) in length, it has a short crest on the top of its head. Its plumage is mostly greyish black, and it has prominent white cheek patches and a white tail band. The body feathers are edged with white giving a scalloped appearance. Adult males have a dark grey beak and pink eye-rings. Adult females have a bone-coloured beak, grey eye-rings and ear patches that are paler than those of the males.

    This cockatoo usually lays a clutch of one to two eggs. It generally takes 28 to 29 days for the female to incubate the eggs, and the young fledge ten to eleven weeks after hatching. The young will stay with the family until the next breeding season, and sometimes even longer. The family leaves the nesting site after the young fledge until the following year. Carnaby's black cockatoo forms flocks when not breeding, with birds in drier habitats usually being more migratory than those in wetter ones. It flies with deep and slow wingbeats, generally high above trees. Seeds of plants of the families Proteaceae and, to a lesser extent, Myrtaceae form a large part of its diet. (Full article...)
  • Image 15 Banksia aculeata, commonly known as prickly banksia, is a species of plant of the family Proteaceae native to the Stirling Range in the southwest of Western Australia. A shrub up to 2 m (7 ft) tall, it has dense foliage and leaves with very prickly serrated margins. Its unusual pinkish, pendent (hanging) flower spikes, known as inflorescences, are generally hidden in the foliage and appear during the early summer. Although it was collected by the naturalist James Drummond in the 1840s, Banksia aculeata was not formally described until 1981, by Alex George in his monograph of the genus. A rare plant, Banksia aculeata is found in gravelly soils in elevated areas. Native to a habitat burnt by periodic bushfires, it is killed by fire and regenerates from seed afterwards. In contrast to other Western Australian banksias, it appears to have some resistance to the soil-borne water mould Phytophthora cinnamomi. (Full article...)

    Banksia aculeata, commonly known as prickly banksia, is a species of plant of the family Proteaceae native to the Stirling Range in the southwest of Western Australia. A shrub up to 2 m (7 ft) tall, it has dense foliage and leaves with very prickly serrated margins. Its unusual pinkish, pendent (hanging) flower spikes, known as inflorescences, are generally hidden in the foliage and appear during the early summer. Although it was collected by the naturalist James Drummond in the 1840s, Banksia aculeata was not formally described until 1981, by Alex George in his monograph of the genus.

    A rare plant, Banksia aculeata is found in gravelly soils in elevated areas. Native to a habitat burnt by periodic bushfires, it is killed by fire and regenerates from seed afterwards. In contrast to other Western Australian banksias, it appears to have some resistance to the soil-borne water mould Phytophthora cinnamomi. (Full article...)

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