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Rheobatrachus Vitellinus
The gastric-brooding frogs or platypus frogs (''Rheobatrachus'') is a genus of extinct ground-dwelling frogs native to Queensland in eastern Australia. The genus consisted of only two species, both of which became extinct in the mid-1980s. The genus is unique because it contains the only two known frog species that incubated the prejuvenile stages of their offspring in the stomach of the mother. The combined ranges of the gastric-brooding frogs comprised less than . Both species were associated with creek systems in rainforests at elevations of between . The causes of the gastric-brooding frogs' extinction are not clearly understood, but habitat loss and degradation, pollution, and some diseases may have contributed. The assignment of the genus to a taxonomic family is hotly debated. Some biologists class them within Myobatrachidae under the subfamily Rheobatrachinae, but others place them in their own family, Rheobatrachidae. Molecular genetics finds it sister to '' Mixophyes' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provide sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnodynastinae
Limnodynastidae, commonly known as the Australian ground frogs, is a family of frogs found in Australia, New Guinea, and the Aru Islands. They were formerly considered a subfamily of the Myobatrachidae, the other large radiation of terrestrial frogs in Australia, but are now considered a distinct family. Both Limnodynastidae and Myobatrachidae are thought to be the only members of the superfamily Myobatrachoidea Myobatrachoidea is a superfamily of frogs. It contains two families, both of which are found in Australia, New Guinea, and the Aru Islands. Some sources group these two families into a single family Myobatrachidae. Their closest relatives are .... Taxonomy The following genera are recognised in the family Limnodynastidae: References Limnodynastidae Myobatrachoidea Amphibian families Amphibians of Australia Amphibians of New Guinea Amphibians of Papua New Guinea {{Neobatrachia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanum (zoology)
The tympanum is an external hearing structure in animals such as mammals, birds, some reptiles, some amphibians and some insects. Using sound, vertebrates and many insects are capable of sensing their prey, identifying and locating their predators, warning other individuals, and locating potential mates and rivals by hearing the intentional or unintentional sounds they make. In general, any animal that reacts to sounds or communicates by means of sound, needs to have an auditory mechanism. This typically consists of a membrane capable of vibration known as the tympanum, an air-filled chamber and sensory organs to detect the auditory stimuli. Anurans In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. A frog's ear drum works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris (anatomy)
In humans and most mammals and birds, the iris (plural: ''irides'' or ''irises'') is a thin, annular structure in the eye, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. Eye color is defined by the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Structure The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, beneath the stroma, pigmented epithelial cells. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles ( dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds. The sphincter pupillae is the opposing muscle of the dilator pupillae. The pupil's diameter, and thus the inner border of the iris, changes size when constricting or dilating. The outer border of the iris does not change size. The constricti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stanley River (Queensland)
The Stanley River is a perennial river located in the South East region of Queensland, Australia. A major tributary of the Brisbane River, the Stanley River valley extends roughly westwards from the area south of Maleny, through Woodford to Kilcoy before veering southwards. Course and features Formed by runoff from the Jimna, Conondale, Bellthorpe and D'Aguilar ranges, the river rises west of in the hinterland surrounding the Sunshine Coast and flows generally southwest, joined by eighteen minor tributaries before being impounded by the Somerset Dam built upstream from its confluence with the Brisbane River. The dam was the principal water supply for Brisbane for some fifty years until the construction of the Wivenhoe Dam was completed, forming Lake Wivenhoe. The Stanley River tributaries include Ewen, Crohamhurst, London, Running, Blackrock, One Mile, Monkeybong, Delaney’s, Neurem, Stony, Marysmokes, Scrubby, Sandy, Kilcoy, Sheepstation, Oaky, Byron and Reedy Creeks. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mary River (Queensland)
The Mary River (Kabi Kabi: ''Moocooboola'') is a major river system located in the South East and Wide Bay–Burnett regions of Queensland, Australia. Etymology The river was traditionally named ''Moocooboola'' by the indigenous Australian Kabi people. The river was named ''Wide Bay River'' on 10 May 1842 by early European explorers, Andrew Petrie and Henry Stuart Russell. The official name was changed on 8 September 1847 (prior to Queensland becoming a separate colony) by Charles Augustus FitzRoy, then Governor of New South Wales, to ''Mary River'' — after his wife Lady Mary Lennox (15 August 1790 to 7 December 1847). History The Mary River was used for rafting timber during the early years of European land settlement, and the discovery of gold at Gympie in 1867 brought an inflow of miners and pastoralists. Alluvial flats along the Mary River and some of its tributaries were used for cropping, and there was small-time dairying in the 1880s. Course and features The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerophyll
Sclerophyll is a type of vegetation that is adapted to long periods of dryness and heat. The plants feature hard leaf, leaves, short Internode (botany), internodes (the distance between leaves along the stem) and leaf orientation which is parallel or oblique to direct sunlight. The word comes from the Greek ''sklēros'' (hard) and ''phyllon'' (leaf). The term was coined by Andreas Franz Wilhelm Schimper, A.F.W. Schimper in 1898 (translated in 1903), originally as a synonym of xeromorph, but the two words were later differentiated. Sclerophyllous plants occur in many parts of the world, but are most typical of areas with low rainfall or seasonal droughts, such as Australia, Africa, and western North and South America. They are prominent throughout Flora of Australia, Australia, parts of Flora of Argentina, Argentina, the Cerrado biogeographic region of Geography of Bolivia, Bolivia, Geography of Paraguay, Paraguay and Flora of Brazil, Brazil, and in the Mediterranean forests, woo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brisbane
Brisbane ( ) is the capital and most populous city of the states and territories of Australia, Australian state of Queensland, and the list of cities in Australia by population, third-most populous city in Australia and Oceania, with a population of approximately 2.6 million. Brisbane lies at the centre of the South East Queensland metropolitan region, which encompasses a population of around 3.8 million. The Brisbane central business district is situated within a peninsula of the Brisbane River about from its mouth at Moreton Bay, a bay of the Coral Sea. Brisbane is located in the hilly floodplain of the Brisbane River Valley between Moreton Bay and the Taylor Range, Taylor and D'Aguilar Range, D'Aguilar mountain ranges. It sprawls across several local government in Australia, local government areas, most centrally the City of Brisbane, Australia's most populous local government area. The demonym of Brisbane is ''Brisbanite''. The Traditional Owners of the Brisbane a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conondale Range
The Conondale Range is a mountain range in Queensland, located between Maleny, Kenilworth, Kilcoy and Jimna. The range is the most westerly part of the Sunshine Coast hinterland and part of the Great Dividing Range. The highest point on the range is Mount Langley reaching 868 m above sea level. This is also the highest point in the Brisbane River catchment. Lower foothills of the range around Kilcoy are used for grazing. Most of the steep forested slopes of the range are state forests and Conondale National Park. In the south, parts of Stony Creek are preserved in Bellthorpe National Park. The mountains are the source of the Brisbane River. Creeks on the south of the range drain into the Stanley River and directly into Lake Somerset. To the north creeks flow into the Mary River. History Dalla (also known as Dalambara and Dallambara) is a language of the Upper Brisbane River catchment, notably the Conondale Range. Dalla is part of the Duungidjawu language region inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackall Range
The Blackall Range is a mountain range in South East Queensland, Australia. The first European explorer in the area was Ludwig Leichhardt. It was named after Samuel Blackall, the second Governor of Queensland. The Blackall Range dominates the hinterland area of the Sunshine Coast, west of Nambour. Maleny, Mapleton, Montville and Flaxton are the main settlements located on the range. The Stanley River rises from the southern slopes. Baroon Pocket Dam is a reservoir on Obi Obi Creek which drains the north west slopes of the range. Mary Cairncross Reserve marks the site of the first settler's house on the Blackall Range. Curramore Sanctuary, Mapleton Falls National Park and Kondalilla National Park are also located on the range. A number of lookouts on the range provide views towards the coast. One of these is located at Howells Knob, a mountain which rises 561 m above sea level. Timber resources in the area attracted timber-cutters in 1860s. The last logging on the ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platypus
The platypus (''Ornithorhynchus anatinus''), sometimes referred to as the duck-billed platypus, is a semiaquatic, egg-laying mammal Endemic (ecology), endemic to Eastern states of Australia, eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its Family (biology), family (Ornithorhynchidae) and genus (''Ornithorhynchus''), though a number of Fossil Monotremes, related species appear in the fossil record. Together with the four species of echidna, it is one of the five wikt:extant, extant species of monotremes, mammals that lay Egg (biology), eggs instead of giving birth to live young. Like other monotremes, it senses prey through electroreception, electrolocation. It is one of the few species of venomous mammals, as the male platypus has a spur (zoology), spur on the hind foot that delivers a Platypus venom, venom, capable of causing severe pain to humans. The unusual appearance of this egg-laying, duck-billed, beaver-t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dahl's Aquatic Frog
Dahl's aquatic frog (''Ranoidea dahlii'') is a species of frog in the subfamily Pelodryadinae, endemic to Australia. Its natural habitats are dry savanna, subtropical or tropical dry lowland grassland, freshwater lakes, intermittent freshwater lakes, freshwater marshes, and intermittent freshwater marshes. Dahl's aquatic frog was once thought to be able to consume the eggs, tadpoles, and young of the invasive and venomous cane toad with no apparent ill effect, but this observation was based on a handful of captive survivals. Adults regurgitate the young toads, and avoid eating them in the future, or rarely swallow them; in this case, about half the adults die. These frogs do not appear to have an elevated resistance to bufotoxins compared to other Australian hylid frogs, and avoid these toads if they survive their first toad meal. See also *Gastric-brooding frog The gastric-brooding frogs or platypus frogs (''Rheobatrachus'') is a genus of extinct ground-dwelling frogs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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