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Carnarvon National Park
Carnarvon National Park is located in the Southern Brigalow Belt bioregion in the Maranoa Region in Central Queensland, Australia. The park is 593 km northwest of Brisbane. It began life as a reserve gazetted in 1932 to protect Carnarvon Gorge for its outstanding scenic values, its Indigenous and non-Indigenous cultural heritage, and its geological significance. Rocks and landscapes Situated within the Central Queensland Sandstone Belt, and straddling the Great Dividing Range, Carnarvon National Park preserves and presents significant elements of Queensland's geological history including two sedimentary basins, the Bowen and the Surat, and the Buckland Volcanic Province. The youngest rocks in the area are the igneous basalt rocks of the Buckland volcanic Province, which were laid down between 35 and 27 million years ago. Since that time, water and wind have eroded the park's landscapes into a network of sandy plains, valleys, and gorges separated by basalt-capped tab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolleston, Queensland
Rolleston is a rural town and locality in the Central Highlands Region, Queensland, Australia. In the , the locality of Rolleston had a population of 309 people. Geography Rolleston is located on the Comet River, west of Gladstone, 263 kilometres (163 mi) north of Roma and northwest of Brisbane. Springsure, the nearest town, lies to the north-west. Rolleston is at the junction of the Carnarvon, Gregory and Dawson highways. There is a large coal mine west called the Rolleston coal mine. History Rolleston was built on Kanolu land. '' Wadja'' (also known as ''Wadjigu'', ''Wadia'', ''Wadjainngo'', ''Mandalgu'', and ''Wadjigun)'' is an Australian Aboriginal language in Central Queensland. The language region includes the local government areas of the Aboriginal Shire of Woorabinda and Central Highlands Region, including the Blackdown Tablelands. the Comet River, and the Expedition Range, and the towns of Woorabinda, Springsure and Rolleston. The town is named after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dawson River (Queensland)
The Dawson River is a river located in Central Queensland, Australia. Course and features The Dawson River rises in the Carnarvon Range, draining through the Carnarvon National Park, northwest of the settlement of Upper Dawson. The flows generally south by east, crossed by the Carnarvon Highway and then flows generally east through the settlement of where the river is crossed by the Leichhardt Highway. The river then flows in a northerly direction through the settlement of where the river is again crossed by the Leichhardt Highway. The river flows north through the settlement of and towards , crossed by the Capricorn Highway. A little further north, the Dawson River forms confluence with the Mackenzie River to form the Fitzroy River. From source to mouth, the river is joined by sixty-four tributaries, including the Don River, and descends over its course. Several weirs have been constructed along the river to provide water for cotton and dairy farming in the region. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gliding Possum
There are many different types of gliding possum, sometimes referred to as volplane possum, flying phalangers, or simply as gliders: Australian gliders * Feathertail glider or pygmy gliding possum, ''Acrobates pygmaeus'' * Greater glider, ''Petauroides volans'' * Mahogany glider, ''Petaurus gracilis'' * Squirrel glider, ''Petaurus norfolcensis'' * Sugar glider, ''Petaurus breviceps'' * Yellow-bellied glider or fluffy glider, ''Petaurus australis'' New Guinea gliders * Biak glider, ''Petaurus biacensis'' * Northern glider The northern glider (''Petaurus abidi'') is a species of marsupial in the family Petauridae. It is endemic to Papua New Guinea, becoming known to science in 1981 after being discovered in the Torricelli Mountains. This species has been found in ..., ''Petaurus abidi'' A characteristic of all species of marsupial gliders is the partially fused ( syndactylous) second and third digits on the hind feet.Gliders of Australia: A Natural History. 2002. David Lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithorhyncus Anatinus
The platypus (''Ornithorhynchus anatinus''), sometimes referred to as the duck-billed platypus, is a semiaquatic, egg-laying mammal endemic to eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its family (Ornithorhynchidae) and genus (''Ornithorhynchus''), though a number of related species appear in the fossil record. Together with the four species of echidna, it is one of the five extant species of monotremes, mammals that lay eggs instead of giving birth to live young. Like other monotremes, it senses prey through electrolocation. It is one of the few species of venomous mammals, as the male platypus has a spur on the hind foot that delivers a venom, capable of causing severe pain to humans. The unusual appearance of this egg-laying, duck-billed, beaver-tailed, otter-footed mammal baffled European naturalists when they first encountered it, and the first scientists to examine a preserved platypus body (in 179 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artesian Aquifer
An artesian aquifer is a confined aquifer containing groundwater under positive pressure. An artesian aquifer has trapped water, surrounded by layers of impermeable rock or clay, which apply positive pressure to the water contained within the aquifer. If a well were to be sunk into an artesian aquifer, water in the well-pipe would rise to a height corresponding to the point where hydrostatic equilibrium is reached. A well drilled into such an aquifer is called an ''artesian well''. If water reaches the ground surface under the natural pressure of the aquifer, the well is termed a ''flowing artesian well''. Fossil water aquifers can also be artesian if they are under sufficient pressure from the surrounding rocks, similar to how many newly tapped oil wells are pressurized. From the previous statement, it can be inferred that not all aquifers are artesian (i.e., water table aquifers occur where the groundwater level at the top of the aquifer is at equilibrium with atmosph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angiopteris Evecta
''Angiopteris evecta'', commonly known as the king fern, giant fern, elephant fern, oriental vessel fern, Madagascar tree fern, or mule's Foot fern, is a very large rainforest fern in the family Marattiaceae native to most parts of Southeast Asia and Oceania. It has a history dating back about 300 million years, and is believed to have the longest fronds of any fern in the world. Description ''Angiopteris evecta'' is a self-supporting evergreen perennial fern with very large bipinnate fronds. The trunk-like rhizome is massive, measuring up to in diameter. The older portions of the rhizome lie on the ground while the newer growth may rise vertically up to high. The arching, glossy green fronds, which emerge from the tip of the rhizome, may reach up to long and wide, with the fleshy green petiole (leaf stem) making up of that length. They are said to be the longest fern fronds in the world, and despite their enormous size they have no woody strengthening tissues in the fron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stemmacantha Australis
''Rhaponticum'' is a genus of flowering plants in the tribe Cardueae within the family Asteraceae. Description ''Rhaponticum'' species are perennial herbaceous plants with simple, rarely branched stems. The leaves are simple to pinnatifid. The inflorescence is on the apex of the stem. The fruit is an achene with a hairy pappus.''Rhaponticum''. Flora of China. Systematics Species The genus comprises the following species.Hidalgo, O., et al. (2006)[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadellia Pentastylis
''Cadellia'' is a monotypic genus of trees in the botanical family Surianaceae. The sole species, ''Cadellia pentastylis'', commonly known as ooline, is a medium to large tree with bright green leaves and rough tile-pattern bark. It has rain forest origins dating from the Pleistocene Era when much of Australia was wetter than it is today. It grows on moderately fertile soils, preferably those suited for agriculture or pasture development. Due to extensive forest clearing, it is now considered a vulnerable plant in Australia. Description The ''Cadellia'' tree grows to be about 10 m - rarely 25 m in height. It has leaves that are alternate, undivided and obovate or "oval" in shape. Flowering occurs from about October to December. The flowers have five white petals, about 5–7 mm in length. The ooline's fruit is brownish, wrinkled, and remains surrounded by five red sepals at its base. Fruiting generally occurs from November to December. The fruit's edibility for humans i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livistona
''Livistona'' is a genus of palms, the botanical family Arecaceae, native to southeastern and eastern Asia, Australasia, and the Horn of Africa. They are fan palms, the leaves with an armed petiole terminating in a rounded, costapalmate fan of numerous leaflets. '' L. speciosa'', locally called ''kho'', gives its name to Khao Kho District in Thailand. Taxonomy The genus was established by Robert Brown in his ''Prodromus Florae Novae Hollandiae'' (1810) to accommodate his descriptions of two species collected during an expedition to Australia. The names published by Brown were '' Livistona humilis'' and '' L. inermis'', describing material he had collected in the north of Australia, a partial taxonomic revision in 1963 nominated the first of these as the lectotype. His collaborator Ferdinand Bauer, the botanist and master illustrator, produced artworks to accompany Brown's descriptions, but these were not published until 1838. In 1983 a species of palm from Somalia was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Clearing In Australia
Land clearing in Australia describes the removal of native vegetation and deforestation in Australia. Land clearing involves the removal of native vegetation and habitats, including the bulldozing of native bushlands, forests, savannah, woodlands and native grasslands and the draining of natural wetlands for replacement with agriculture, urban and other land uses. , of the vegetation which existed in Australia at the time of European settlement, approximately 87% remains. One estimate places the rate of rainforest of all types has been reduced by three quarters since the time of European settlement from eight million hectares to two million. Land clearing threatens native species including ground orchids and eucalyptus. Land clearing is an important environmental issue in Australia. Bans on land clearing have been placed by state governments. This policy largely permitted Australia to abide by its commitments to the Kyoto Protocol. Causes The underlying causes of land-cle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecosystem
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and microbes. Ecosystems are controlled by external and internal Environmental factor, factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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