Northern bettong [1] | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Infraclass: | Marsupialia |
Order: | Diprotodontia |
Family: | Potoroidae |
Genus: | Bettongia |
Species: | B. tropica |
Binomial name | |
Bettongia tropica | |
Distribution of the northern bettong |
The northern bettong (Bettongia tropica) is a small, endangered, gerbil-like mammal native to forests in northeast Australia. A member of the rat-kangaroo family (Potoroidae), it moves by hopping and lives in burrows, feeding at night on roots and fungi. It is also a marsupial and carries its young in a pouch. The northern bettong is threatened by habitat loss, and is now restricted to a few small areas.
The northern bettong is restricted to some areas of mixed open Eucalyptus woodlands and Allocasuarina forests bordering rainforests in far northeastern Queensland, Australia.
The typical bettong lives in the wild for about 4 to 6 years. According to the Smithsonian's National Zoologist, they can, under proper care, live up to the age of 15 years. [5]
All species of the bettong are nocturnal. They carry nesting materials with their long tails and can be found in burrows that they escape to during the day. They like to feed at night and their range of food varies. They rarely drink water, and refrain from eating any green plants. They primarily seek fungus and plants such as mushrooms, tubers, scrubs, fruits and seeds. They use their front claws to dig for tubers, identifying them via their sense of smell. [5] These animals are able to reproduce at any time of the year, and can produce three young in a favorable year. This high rate of reproduction can lead to fluctuations in population growth. [6]
It spends the day in a well concealed nest constructed beneath a tree, within a clump of grass or in other litter collected at ground level. Nesting material is carried using its prehensile tail. Ectomycorrhizal fungal sporocarps are the staple diet of the northern bettong. These are dug from beneath the soil at the bases of trees, and work to date suggests substantial nightly movements are often required to detect this irregularly-distributed food source. Other foods in the diet include grass roots and tubers, lilies, herbs, and sedges. The northern bettong appears to breed all year round, and like other relatives of the kangaroos, the joey is carried in a pouch until it is old enough to follow the mother as a 'young-at-foot'.
The northern bettong is listed as a threatened species. It is estimated that there are only 1000 left in the wild with only two known populations in the Mareeba region of the Atherton Tablelands (Davies Creek, Emu Creek and Tinaroo Creek). [7] The most significant threat to the northern bettong is habitat loss caused by land clearing for agriculture. [6]
A Recovery Team including government agencies, scientists, traditional owners and volunteer groups are focusing conservation efforts are focusing on improving habitat.
Freycinet National Park is a national park on the east coast of Tasmania, Australia, 125 kilometres (78 mi) northeast of Hobart. It occupies a large part of the Freycinet Peninsula, named after French navigator Louis de Freycinet, and Schouten Island. Founded in 1916, it is Tasmania's oldest park, along with Mount Field National Park. Bordering the national park is the small settlement of Coles Bay, and the largest nearby town is Swansea. Freycinet contains part of the rugged Tasmanian coastline and includes the secluded Wineglass Bay. Features of the park include its red and pink granite formations and a series of jagged granite peaks in a line, called "The Hazards".
Potoroidae is a family of marsupials, small Australian animals known as bettongs, potoroos, and rat-kangaroos. All are rabbit-sized, brown, jumping marsupials and resemble a large rodent or a very small wallaby.
The giant kangaroo rat is an endangered species of heteromyid rodent endemic to California.
The woylie or brush-tailed bettong is a small, critically endangered mammal native to forests and shrubland of Australia. A member of the rat-kangaroo family (Potoroidae), it moves by hopping and is active at night, digging for fungi to eat. It is also a marsupial and carries its young in a pouch. Once widespread, the woylie mostly died out from habitat loss and introduced predators such as foxes. It is currently restricted to two small areas in Western Australia. There were two subspecies: B. p. ogilbyi in the west, and the now-extinct B. p. penicillata in the southeast.
Threatened fauna of Australia are those species and subspecies of birds, fish, frogs, insects, mammals, molluscs, crustaceans, and reptiles to be found in Australia that are in danger of becoming extinct. This article lists species classified as threatened species under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999.
A kangaroo mouse is either one of the two species of jumping mouse native to the deserts of the southwestern United States, predominantly found in the state of Nevada. The name "kangaroo mouse" refers to the species' extraordinary jumping ability, as well as its habit of bipedal locomotion. The two species are:
The eastern bettong, also known as the southern or Tasmanian bettong, is a small, hopping, rat-like mammal native to grassy forests of southeastern Australia and Tasmania. A member of the rat-kangaroo family (Potoroidae), it is active at night and feeds on fungi and plant roots. Like most marsupials, it carries its young in a pouch. The eastern bettong is under pressure by introduced predators and habitat loss. The subspecies on mainland Australia is extinct, but populations of the Tasmanian subspecies have been reintroduced there.
The musky rat-kangaroo is a small marsupial found only in the rainforests of northeastern Australia. First described in the later 19th century, the only other species are known from fossil specimens. They are similar in appearance to potoroos and bettongs, but are not as closely related. Their omnivorous diet is known to include materials such as fruit and fungi, as well as small animals such as insects and other invertebrates.
The long-nosed potoroo is a small, hopping mammal native to forests and shrubland of southeastern Australia and Tasmania. A member of the potoroo and bettong family (Potoroidae), it lives alone and digs at night for fungi, roots, or small insects. It is also a marsupial and carries its young in a pouch. The long-nosed potoroo is threatened by habitat loss and introduced species such as cats or foxes. There are two subspecies: P. t. tridactylus on mainland Australia, and P. t. apicalis on Tasmania, with lighter fur.
The kultarr is a small insectivorous nocturnal marsupial inhabiting the arid interior of Australia. Preferred habitat includes stony deserts, shrubland, woodland, grassland and open plains. The kultarr has a range of adaptations to help cope with Australia's harsh arid environment including torpor similar to hibernation that helps conserve energy. The species has declined across its former range since European settlement due to changes in land management practices and introduced predators.
The mammals of Australia have a rich fossil history, as well as a variety of extant mammalian species, dominated by the marsupials, but also including monotremes and placentals. The marsupials evolved to fill specific ecological niches, and in many cases they are physically similar to the placental mammals in Eurasia and North America that occupy similar niches, a phenomenon known as convergent evolution. For example, the top mammalian predators in Australia, the Tasmanian tiger and the marsupial lion, bore a striking resemblance to large canids such as the gray wolf and large cats respectively; gliding possums and flying squirrels have similar adaptations enabling their arboreal lifestyle; and the numbat and anteaters are both digging insectivores. Most of Australia's mammals are herbivores or omnivores.
Potoroo is a common name for species of Potorous, a genus of smaller marsupials. They are allied to the Macropodiformes, the suborder of kangaroo, wallaby, and other rat-kangaroo genera. All three extant species are threatened by ecological changes since the colonisation of Australia, especially the long-footed potoroo Potorous longipes (endangered) and P. gilbertii. The broad-faced potoroo P. platyops disappeared after its first description in the 19th century. The main threats are predation by introduced species and habitat loss.
The Macropodiformes, also known as macropods, are one of the three suborders of the large marsupial order Diprotodontia. They may in fact be nested within one of the suborders, Phalangeriformes. Kangaroos, wallabies and allies, bettongs, potoroos and rat kangaroos are all members of this suborder.
The boodie, also known as the burrowing bettong or Lesueur's rat-kangaroo, is a small, furry, rat-like mammal native to Australia. Once common throughout the continent, it is now restricted to a few coastal islands. A member of the rat-kangaroo family (Potoroidae), it lives in burrows and is active at night when it forages for fungi, roots, and other plant matter. It is about the size of a rabbit and, like most marsupials, carries its young in a pouch.
The rufous rat-kangaroo or rufous bettong is a small, jumping, rat-like marsupial native to eastern Australia. It is the only species in the genus Aepyprymnus. The largest member of the potoroo/bettong family (Potoroidae), it is about the size of a rabbit. The rufous rat-kangaroo is active at night when it digs for plant roots and fungi, and like other marsupials it carries its young in a pouch. Though its range is reduced, the population is healthy and stable.
Bettongs, species of the genus Bettongia, are potoroine marsupials once common in Australia. They are important ecosystem engineers displaced during the colonisation of the continent, and are vulnerable to threatening factors such as altered fire regimes, land clearing, pastoralism and introduced predatory species such as the fox and cat.
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