Brown antechinus [1] | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Infraclass: | Marsupialia |
Order: | Dasyuromorphia |
Family: | Dasyuridae |
Genus: | Antechinus |
Species: | A. stuartii |
Binomial name | |
Antechinus stuartii Macleay, 1841 | |
Brown antechinus range |
The brown antechinus (Antechinus stuartii), also known as Stuart's antechinus and Macleay's marsupial mouse, is a species of small carnivorous marsupial of the family Dasyuridae. The males die after their first breeding season, and the species holds the world record for being the world's smallest semelparous mammal. [3]
Antechinus stuartii is mostly light brown above, including the upper surfaces of its feet, and a lighter brown below and on its tail. Its body length is 93–130 mm (3.7–5.1 in) and its tail 92–120 mm (3.6–4.7 in), and it weighs 16–44 g (0.56–1.55 oz). Unlike in other members of Antechinus , no pale-coloured eye ring occurs. Antechinus agilis is similar in appearance and difficult to distinguish except by its distribution. [4]
The brown antechinus was only the third in its genus to be described and as such, until recently, has included species such as the agile antechinus (Antechinus agilis), the subtropical antechinus (Antechinus subtropicus), and the tropical antechinus (Antechinus adustus). [4] : 56 It has also been included itself with the yellow-footed antechinus as the subspecies A. flavipes burrelli. [5] It was described in 1841 by the entomologist William Sharp Macleay, who named the species in honour of his friend and fellow naturalist James Stuart, who had discovered the animal at Spring Cove (North Head) in 1837 while working as surgeon in charge of the Quarantine Station. [6]
The brown antechinus is mostly nocturnal and is arboreal, and females build large communal nests shared by many individuals. Like all antechinuses, the males die after their first breeding season (which lasts two weeks) as a result of stress and exhaustion. [4] The current accepted hypothesis to why this happens is that sperm competition drives increased male investment in reproduction. [7] Female brown antechinuses do not possess a pouch; the young must attach themselves to the teats (of which there are usually eight). The litter size is six or seven young.
Its diet includes beetles, spiders, amphipods, and cockroaches, although it is an opportunistic feeder. [5] Following a fire it will remain in its home range and undergo torpor, thus reducing its foraging requirements and reducing the risk from predators. [8]
The brown antechinus is found east of the Great Dividing Range in Australia, from southeastern Queensland to around Kioloa, New South Wales. [5] It is mostly found in forested habitats, [5] with dense lower ground cover and low fire frequency. [9]
The common planigale, also known as the pygmy planigale or coastal planigale, is one of the small carnivorous marsupials known as "marsupial mice" found in Australia. There they fill a similar niche to the insectivores of other parts of the world.
The little red kaluta is a small, reddish-brown, shrew-like mammal native to dry grasslands of northwest Western Australia. It is active at night, feeding on insects and other small animals. The kaluta is a marsupial and is the only member of its genus, Dasykaluta. Individuals are around 10 cm (3.9 in) long and weigh from 20 to 40 g. They live for about four years in captivity. Other common names include little red antechinus, russet antechinus and spinifex antechinus.
The yellow-footed antechinus, also known as the mardo, is a shrew-like marsupial found in Australia. One notable feature of the species is its sexual behavior. The male yellow-footed antechinus engages in such frenzied mating that its immune system becomes compromised, resulting in stress–related death before it is one year old.
Antechinus is a genus of small dasyurid marsupial endemic to Australia. They resemble mice with the bristly fur of shrews.
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 Phascogalini are a tribe in the family Dasyuridae, comprising seven genera of small marsupials native to Australia and New Guinea.
The slender-tailed dunnart, also known as the common dunnart in Australia, is a dasyurid marsupial. It has an average body length of 7 to 12 centimeters (2.8–4.7 in) with a tail length of 5.5 to 13 centimetres (2.2–5.1 in). It weighs 25–40.8 grams for males and 16.5–25.4 grams for females.
The striped-faced dunnart is a small, Australian, nocturnal, "marsupial mouse," part of the family Dasyuridae. The species' distribution occurs throughout much of inland central and northern Australia, occupying a range of arid and semi-arid habitats.
The fat-tailed false antechinus, also called the fat-tailed pseudantechinus and red-eared antechinus, is a member of the order Dasyuromorphia. It is an inhabitant of western and central Australia. Its species name, macdonnellensis, refers to the MacDonnell Ranges near Alice Springs, where it was first discovered.
The Alexandria false antechinus, also known as the Carpentarian false antechinus or Carpentarian pseudantechinus, is a small carnivorous marsupial, found only in a number of small, isolated localities in northern Australia. It is the smallest and rarest of the false antechinuses.
Woolley's false antechinus, also known as Woolley's pseudantechinus, is a species of small carnivorous marsupial belonging to the family Dasyuridae. It is found in the Australian state of Western Australia, primarily in the Pilbara, Ashburton and Murchison regions.
The tropical antechinus, also known as the rusty antechinus, is a species of small marsupial carnivore, particularly closely related to the brown antechinus.
The subtropical antechinus is a species of small carnivorous marsupial of the family Dasyuridae.
The agile antechinus is a species of small carnivorous marsupial of the family Dasyuridae. It is found in Australia.
The fawn antechinus is a species of small carnivorous marsupial found in northern Australia. It is the only Antechinus to be found in the Northern Territory and has a patchy, restricted range.
The Atherton antechinus, also known as Godman's antechinus, is a species of small carnivorous, insectivorous marsupial native to Australia. It is one of the rarest members of its genus, and differs from other antechinuses in its more rufous body colour and small eyes.
The cinnamon antechinus, also known as the Iron Ranges antechinus and the Cape York antechinus, is a species of small carnivorous marsupial of the family Dasyuridae. It is the only mammal endemic to Cape York Peninsula, being confined to semideciduous forest around the McIlraith and Iron Ranges. Along with the Atherton antechinus, it is the rarest in its genus.
The dusky antechinus, also known as Swainson's antechinus or the dusky marsupial mouse, is a species of small marsupial carnivore, a member of the family Dasyuridae. It is found in Australia.
Semelparity and iteroparity are two contrasting reproductive strategies available to living organisms. A species is considered semelparous if it is characterized by a single reproductive episode before death, and iteroparous if it is characterized by multiple reproductive cycles over the course of its lifetime. Iteroparity can be further divided into continuous iteroparity and seasonal iteroparity Some botanists use the parallel terms monocarpy and polycarpy.