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Engaeus Mairener
''Engaeus'' is a genus of freshwater crayfish found in Australia, the burrowing crayfishes. Sixteen of the 36 species in the genus occur in Tasmania, where they are known as the Tasmanian land crayfishes. The behaviour of these crayfish is notable as they live in burrows and construct large "chimneys" at the opening. The burrowing crayfish, in the genus ''Engaeus,'' are primarily found in Tasmania with 14 out of 16 species being endemic to the state with the other two species located in Victoria as well as Tasmania. The ''Engaeus'' genus is a highly specialized form of freshwater crayfish which is capable of living in tunnel systems in peaty, muddy or wetland environments with the burrows extending down to the water table (an underground level which defines the transition between water saturated ground and non-saturated ground such as the surface) where the water is generally constant. Description The burrowing crayfish spend their entire life cycle underground in tunnel syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engaeus Affinis
''Engaeus affinis'' is a species of crayfish in the family Parastacidae. It is endemic to Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl .... References Parastacidae Freshwater crustaceans of Australia Crustaceans described in 1913 {{Crayfish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engaeus Nulloporius
''Engaeus nulloporius'' is a species of crayfish in the family Parastacidae. It is endemic to Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl .... Sources *Doran, N. and Horwitz, P. 2010. Engaeus nulloporius'. The IUCN Red List of Threatened Species 2010. Retrieved 5 February 2017. External links Atlas of Living Australia website Parastacidae Freshwater crustaceans of Australia [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engaeus Urostrictus
The Dandenong Burrowing Crayfish ''(Engaeus urostrictus'') is an Australian freshwater crustacean in the Parastacidae family. As its common name suggests, the Dandenong Burrowing Crayfish is found in the Dandenong Ranges east of Melbourne, Australia. ''Engaeus urostrictus'' is listed as vulnerable on the IUCN Red List of Threatened Species. Habitat The Dandenong Burrowing Crayfish occurs in riparian zones characterised by sandy soil flats adjacent to small, slow-flowing headwater streams with high organic content. The Crayfish builds extensive burrow systems with many lateral branches amongst buried, rotting plants and roots of ferns, shrubs and trees. The riparian burrow systems of the species have tunnels which descend to the water table The water table is the upper surface of the phreatic zone or zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with groundwater, which may be fresh, saline, or brackish, depending on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engaeus Rostrogaleatus
''Engaeus rostrogaleatus'', the Strzelecki burrowing crayfish, is a species of crayfish in the family Parastacidae. It is endemic to Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl .... References Sources *Doran, N. & Horwitz, P. 2010. Engaeus rostrogaleatus'. IUCN Red List of Threatened Species 2010. Retrieved 5 February 2017. Parastacidae Freshwater crustaceans of Australia Vulnerable fauna of Australia Taxonomy articles created by Polbot Crustaceans described in 1990 {{Crayfish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. In 2012 there were 5,196 animals and 6,789 plants classified as vulnerable, compared with 2,815 and 3,222, respectively, in 1998. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
