Gawler Bioregion
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Gawler Bioregion
Gawler is an interim Australian bioregion located in South Australia. It has an area of . Gawler bioregion is part of the Tirari–Sturt stony desert ecoregion. Geography The landscape consists of rolling terrain, rocky hills, plains, and salt-encrusted lake beds.Bastin, G and the ACRIS Management Committee, 2008. ''Rangelands 2008 — Taking the Pulse'', published on behalf of the ACRIS Management Committee by the National Land & Water Resources Audit, Canberra. Ephemeral salt lakes, including Lake Torrens, Lake Gairdner, Lake Macfarlane, Lake Everard, Lake Gilles, Lake Harris, and Lake Acraman, cover extensive areas. The Gawler Ranges lie in the southwestern portion of the bioregion. The Flinders Ranges bound the bioregion to the east. In the southeast the bioregion extends to the Spencer Gulf. Climate The Gawler bioregion has an arid climate. Rainfall is predominantly in the winter, with a spatially-averaged median of 169 mm annually (1890–2005). Rainfall is higher along ...
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Maireana
''Maireana '' is a genus of around 57 species of perennial shrubs and herbs in the family Amaranthaceae which are endemic to Australia. Species in this genus were formerly classified within the genus ''Kochia''. The genus was described in 1840 by the botanist, Moquin-Tandon and named to honour Joseph François Maire (1780-1867), an amateur botanist who befriended him during the author's first visit to Paris in 1834.Fournier, Eugene, Rapport sur l'herbier de M. le Docteur E. Cosson. (1867/ref>Moquin-Tandon, Alfred. Marcel Rolland(editor.) Un naturaliste à Paris sous Louis-Philippe: journal de voyage inédit (1834) 1944. The type species is '' Maireana tomentosa''. Species include: *'' Maireana amoena'' (Diels) Paul G.Wilson *''Maireana aphylla'' (R.Br.) Paul G.Wilson- Cotton bush or leafless bluebush *'' Maireana appressa'' (Benth.) Paul G.Wilson *'' Maireana astrotricha'' (L.A.S.Johnson) Paul G.Wilson *'' Maireana atkinsiana'' (W.Fitzg.) Paul G.Wilson *'' Maireana brevifolia ...
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Lake Acraman
A, or a, is the first Letter (alphabet), letter and the first vowel of the Latin alphabet, Latin alphabet, used in the English alphabet, modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is English alphabet#Letter names, ''a'' (pronounced ), plural English alphabet#Letter names, ''aes''. It is similar in shape to the Greek alphabet#History, Ancient Greek letter alpha, from which it derives. The Letter case, uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, "English articles, a", and its variant "English articles#Indefinite article, an", are Article (grammar)#Indefinite article, indefinite arti ...
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Yellow-footed Rock-wallaby
The yellow-footed rock-wallaby (''Petrogale xanthopus''), formerly known as the ring-tailed rock-wallaby, is a member of the macropod family (the marsupial family that includes the kangaroos, wallabies, tree-kangaroos, and wallaroos). Description The yellow-footed rock-wallaby is grey to fawn-grey above and light-coloured below with a black mid-dorsal stripe from the crown of the head to the centre of the back. There is a distinct white cheek stripe, with ears ranging in colour from orange to grey-brown. The forearms and hind legs are bright yellow to rich orange to a light orange-brown. The tail is orange-brown irregularly ringed with dark brown and golden-brown, with the colour of the tip variable from dark brown to white. The head and body length is 480–650 mm (usually 600 mm), with tail length 570–700 mm (usually 690 mm), and weight 6–11 kg. Distribution and habitat This species of rock-wallaby is found in western New South Wales, eastern South ...
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Western Grey Kangaroo
The western grey kangaroo (''Macropus fuliginosus''), also referred to as a western grey giant kangaroo, black-faced kangaroo, mallee kangaroo, sooty kangaroo and (when referring to the Kangaroo Island subspecies) Kangaroo Island grey kangaroo, is a large and very common kangaroo found across almost the entire southern part of Australia, from just south of Shark Bay through coastal Western Australia and South Australia, into western Victoria, and in the entire Murray–Darling basin in New South Wales and Queensland. Taxonomy Long known to the Aboriginal Australians, for Europeans, the western grey kangaroo was the centre of a great deal of sometimes comical taxonomic confusion for almost 200 years. It was first noted by European explorers when Matthew Flinders landed on Kangaroo Island in 1802. Flinders shot several for food, but assumed that they were eastern grey kangaroos. In 1803, French explorers captured several Kangaroo Island western grey kangaroos and shipped them to P ...
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Red Kangaroo
The red kangaroo (''Osphranter rufus'') is the largest of all kangaroos, the largest terrestrial mammal native to Australia, and the largest extant marsupial. It is found across mainland Australia, except for the more fertile areas, such as southern Western Australia, the eastern and southeastern coasts, and the rainforests along the northern coast. Taxonomy The initial description of the species by A.G. Desmarest was published in 1822. The type location was given as an unknown location west of the Blue Mountains. The author assigned the new species to the genus ''Kangurus''. In 1842, Gould reassigned the species to the genus ''Osphranter'', a taxon later submerged as a subgenus of ''Macropus''. A taxonomic restructure in 2015 in ''Taxonomy of Australian Mammals'' by Jackson and Groves promoted ''Osphranter'' back to genus level, redefining the red kangaroo, among others, as species within the genus ''Osphranter''. This was further supported by genetic analysis in 2019. De ...
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Leptorhynchos Melanocarpus
The genus ''Leptorhynchos'' may refer to: * ''Leptorhynchos'' (dinosaur), a dinosaur genus in the family Caenagnathidae * ''Leptorhynchos'' (plant), a plant genus in the family Asteraceae {{Genus disambiguation ...
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Grevillea Parallelinervis
''Grevillea parallelinervis'' is a species of flowering plant in the family Proteaceae and is endemic to South Australia. It is a spreading shrub with sharply-pointed, linear leaves, and down-turned clusters of red flowers with a green-tipped style. Description ''Grevillea parallelinervis'' is a shrub that typically grows to a height of and has silky- to woolly-hairy branchlets. Its leaves are linear, long, wide and sharply pointed. The edges of the leaves are rolled downwards, obscuring the lower surface, apart from the mid-vein. The flowers are arranged in down-turned clusters in leaf axils on one side of a rachis long, each flower on a pedicel long. The flowers are red with a red to reddish-pink syle that has a green tip, the pistil long. Flowering occurs from August to October, and the fruit is a glabrous, narrowly oval follicle long. Taxonomy ''Grevillea parallelinervis'' was first formally described in 1976 by John Carrick in ''Contributions from the Herbarium Aust ...
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Dodonaea Intricata
''Dodonaea'' is a genus of about 70 species of flowering plants, often known as hop-bushes, in the Sapindus, soapberry family, Sapindaceae. It has a cosmopolitan distribution in tropical, subtropical and warm temperate regions of Africa, the Americas, southern Asia and Australasia. By far the highest species diversity is in Australia. The genus is named after Rembert Dodoens, traditionally known as 'Dodonaeus'. They are shrubs and small trees growing to tall. The leaf, leaves are alternate, simple or pinnate. The flowers are produced in short racemes. The fruit is a capsule (fruit), capsule, often with two or three wings. ''Dodonaea'' species are used as food plants by the larvae of some Lepidoptera species including ''Aenetus, Aenetus eximia'' and ''Aenetus, Aenetus ligniveren''. Systematics ''Dodonaea'' is one of the largest genera in the Sapindaceae, and includes 70 species widely distributed in continental Australia. The only other species of the ''Dodonaea'' widely spread b ...
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Pterostylis Ovata
''Pterostylis ovata'', commonly known as the Gawler Range rustyhood, is a plant in the orchid family Orchidaceae and is endemic to South Australia. Both flowering and non-flowering plants have a rosette of leaves and flowering plants have up to six flowers which have transparent flanges on the petals and a striped, insect-like labellum. Description ''Pterostylis ovata'' is a terrestrial, perennial, deciduous, herb with an underground tuber and a rosette of between three and seven leaves. The leaves are long and wide. Flowering plants have a rosette at the base of the flowering stem but the leaves are usually withered by flowering time. Up to six translucent greenish-white flowers with red, brown or pink markings and long, wide are crowded together on a flowering spike tall. The dorsal sepal and petals form a hood or "galea" over the column with the petals having transparent flanges up to wide on their outer edge. The dorsal sepal has a narrow tip long. The lateral sepal ...
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Acacia Toondulya
''Acacia toondulya'' is a tree belonging to the genus ''Acacia'' and the subgenus ''Phyllodineae'' native to southern Australia. Description The tree typically grows to a height of and has an erect and wispy habit. The glabrous branchlets are coated in a fine white powder and are angled at extremities. Like most species of ''Acacia'' it has phyllodes rather than true leaves. The evergreen phyllodes have an elliptic or obovate shape and a length of and a width of and have prominent marginal nerves and midrib. It blooms between June and September and produces axillary inflorescences located on the racemes or panicles with spherical to obloid flower-heads that contain 80 to 106 densely packed yellow flowers. Following flowering seed pods form that have a narrowly oblong shape and are raised over the seeds. The firmly chartaceous to slightly coriaceous pods are in length and . The seeds are transversely arranged and have an oblong-elliptic shape and are in length with a dark red ...
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Endemic
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 to ...
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Chenopod
Amaranthaceae is a family of flowering plants commonly known as the amaranth family, in reference to its type genus ''Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, making it the most species-rich lineage within its parent order, Caryophyllales. Description Vegetative characters Most species in the Amaranthaceae are annual or perennial herbs or subshrubs; others are shrubs; very few species are vines or trees. Some species are succulent. Many species have stems with thickened nodes. The wood of the perennial stem has a typical "anomalous" secondary growth; only in subfamily Polycnemoideae is secondary growth normal. The leaves are simple and mostly alternate, sometimes opposite. They never possess stipules. They are flat or terete, and their shape is extremely variable, with entire or toothed margins. In some species, the leaves are reduced to minute scales. In most cases, neither basal nor terminal aggrega ...
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