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Anstisia
''Anstisia'' is a genus of frogs in the family Myobatrachidae. These frogs are endemic to southern Western Australia. Prior to 2022, these species were classified in the genus ''Geocrinia''. However, a study split four ''Geocrinia'' species into their own genus, noting major phylogenetic divergence and striking differences in life history and larval morphology between two groups within the genus. This new genus was named ''Anstisia'' in honor of Australian herpetologist Marion Anstis. The major differences in life history between ''Anstisia'' and ''Geocrinia'' have long been noted, even before it was split as a distinct genus. Members of ''Anstisia'' have entirely terrestrial tadpoles that are nourished by yolk Among animals which produce eggs, the yolk (; also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo. Some types of egg contain no yolk, for example ... until metamorphosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anstisia
''Anstisia'' is a genus of frogs in the family Myobatrachidae. These frogs are endemic to southern Western Australia. Prior to 2022, these species were classified in the genus ''Geocrinia''. However, a study split four ''Geocrinia'' species into their own genus, noting major phylogenetic divergence and striking differences in life history and larval morphology between two groups within the genus. This new genus was named ''Anstisia'' in honor of Australian herpetologist Marion Anstis. The major differences in life history between ''Anstisia'' and ''Geocrinia'' have long been noted, even before it was split as a distinct genus. Members of ''Anstisia'' have entirely terrestrial tadpoles that are nourished by yolk Among animals which produce eggs, the yolk (; also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo. Some types of egg contain no yolk, for example ... until metamorphosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocrinia Rosea
''Anstisia rosea'', the karri or roseate frog is a species in the family, Myobatrachidae. It is endemic to Southwest Australia. Taxonomy It was formerly classified in the genus '' Geocrinia'', but was reclassified into the new genus '' Anstisia'' in 2022. The ''Geocrinia'' roseate frogs were previously placed in the genus ''Crinia'' by Harrison. It is most easily distinguished from the 5 congeners of the region (3 ''Anstisia'' and 1 ''Geocrinia'' species) by the rosy glow of the belly, as indicated in the name. Description ''Anstisia rosea'' is very similar in appearance to three other ''Anstisia'' species; '' A. alba'', '' A. lutea'' and '' A. vitellina''. The usually discrete vomerine teeth of the species are evident in this species. Its colouring, largely brown, perhaps mottled, reveals another distinction between the species. The smooth skin of the creature, slightly tubercular on the upper parts, is a rosy pink below. This may also be flecked or mottled. The male has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocrinia Lutea
''Anstisia lutea'' is a species of frog in the family Myobatrachidae. It is sometimes named for the nearby towns, thus the Nornalup or Walpole frog. It is endemic to Southwest Australia, along with the other members of the genus ''Anstisia''. It was formerly classified in the genus ''Geocrinia'', but was reclassified into the new genus ''Anstisia'' in 2022. It is threatened by habitat loss and an altered fire regime, this and other factors contributed to the 2004 reassessment as Near Threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify fo ... (NT). The habit, appearance and ecology is similar to that of the karri frog (''A. rosea''). References * Amphibians described in 1963 Amphibians of Western Australia Frogs of Australia Anstisia Taxonomy articles created by Polb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocrinia Vitellina
''Anstisia vitellina'', commonly known as the orange-bellied frog, is a species of frog in the family Myobatrachidae. It is endemic to a 20 hectare area near Margaret River in Southwest Australia. It is vulnerable to extinction due to fire and the destruction of habitat caused by feral pigs. Taxonomy It was formerly classified in the genus ''Geocrinia'', but was reclassified into the new genus ''Anstisia'' in 2022. Description ''G. vitellina'' is very similar in appearance to the white-bellied frog (''A. alba''); having spots of dark brown on a light brown or grey back, with has a snout–vent length of 17–24 mm." Cophixalus hosmeri (SVL = 17 mm) and Geocrinia vitelline (SVL = 18 mm), with mean clutch sizes of only 6 and 11 eggs, respectively." The underparts, however, are paler and vivid orange in the front. Environment and ecology The species occupies an area of 20 ha, the smallest of any Australian mainland vertebrate, across a range of 6.3 km² arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocrinia Alba
''Anstisia alba'', commonly known as the white-bellied frog, is a small frog in the family Myobatrachidae. It occupies an area near Margaret River in swampy depressions adjoining creeks. Threats from altered ecology have made this a critically endangered species of south-western Australia. Taxonomy It was formerly classified in the genus '' Geocrinia'', but was reclassified into the new genus '' Anstisia'' in 2022. Description ''G. alba'' is very similar in appearance to the orange-bellied frog (''A. vitellina''); having spots of dark brown on a light brown or grey back and a snout-vent length of 17–24 mm. The underparts, however, are white. It is part of the Geocrinia rosea frog complex. Environment and ecology The species occupies an area of 193 ha, across a range of 101 km² around the Witchcliffe- Karridale area of Southwest Australia. This narrow range is confined to swampy areas near creeklines. 56 sites have been found in research conducted by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geocrinia
''Geocrinia'' is a genus of frogs in the family Myobatrachidae. These frogs are endemic to Australia. Two species are known from southeastern Australia (Victoria and Tasmania), while one is known from southeastern Western Australia. All the species in this genus were at some point referred to as ''Crinia''. Further studies showed there was some considerable differences between this group of frogs and ''Crinia''. These differences included; a slightly sturdier body, smoother skin on the ventral surface and the greatest difference, the reproductive nature, laying the eggs outside of water. Until 2022, four other species in Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ... were also classified in this genus, but a phylogenetic study reclassified them into the new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myobatrachidae
Myobatrachidae, commonly known as Australian ground frogs or Australian water frogs, is a family of frogs found in Australia and New Guinea. Members of this family vary greatly in size, from species less than long, to the second-largest frog in Australia, the giant barred frog (''Mixophyes iteratus''), at in length. The entire family is either terrestrial or aquatic frogs, with no arboreal species. Characteristics The family Myobatrachidae contains forms of parental care unique in the animal kingdom. The two species of gastric-brooding frog (genus: ''Rheobatrachus''), are found in this family. The females of these species swallow their young, where they develop until metamorphosis. The pouched frog (''Assa darlingtoni'') has pouches on the sides of its body. The male will guard the eggs until hatching, and assist the tadpoles into its side, where they stay until metamorphosis. Another form of parental care, although not unique, is found in many species of the genus '' Limnody ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marion Anstis
Marion Anstis is an Australian herpetologist. Her work focuses on frogs and Tadpoles found in Australia. Career Anstis was a music teacher for 31 years before retiring in 2001. Before her retirement, she published 11 papers in scientific journals. In 2002, she published a book called ''Tadpoles of South-Eastern Australia'' which won a Whitley Award. Anstis published a children's book, ''Frogs and Tadpoles of Australia'' in 2007. She submitted her book, ''Tadpoles and Frogs of Australia'' as her PhD thesis at Newcastle University in 2012. It was then published in 2013 by New Holland Publishers. It won her another Whitley Award in 2014. She received grants from the Australian Biological Resources Study in 1999 and in 2006-7 and from WWF in 2003. She was shortlisted for a Eureka Prize in 2003. A genus of West Australian frog, ''Anstisia ''Anstisia'' is a genus of frogs in the family Myobatrachidae. These frogs are endemic to southern Western Australia. Prior to 2022, these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from Taxonomy (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. 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 total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herpetology
Herpetology (from Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is the branch of zoology concerned with the study of amphibians (including frogs, toads, salamanders, newts, and caecilians (gymnophiona)) and reptiles (including snakes, lizards, amphisbaenids, turtles, terrapins, tortoises, crocodilians, and the tuataras). Birds, which are cladistically included within Reptilia, are traditionally excluded here; the scientific study of birds is the subject of ornithology. Thus, the definition of herpetology can be more precisely stated as the study of ectothermic (cold-blooded) tetrapods. Under this definition "herps" (or sometimes "herptiles" or "herpetofauna") exclude fish, but it is not uncommon for herpetological and ichthyological scientific societies to collaborate. Examples include publishing joint journals and holding conferences in order to foster the exchange of ideas between the fields, as the American Society of Ichthyologists and He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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