Wongai ningaui

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Wongai ningaui [1]
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Dasyuromorphia
Family: Dasyuridae
Genus: Ningaui
Species:
N. ridei
Binomial name
Ningaui ridei
Archer, 1975 [3]
Wongai Ningaui area.png
Wongai ningaui range

The Wongai ningaui (Ningaui ridei) is a tiny carnivorous marsupial native to the arid open grasslands of inland Australia. Their diet is mainly small insects, and occasionally larger prey such as spiders, grasshoppers and cockroaches, which they forage for at the ground and in clumps of spinifex. They have long and untidy fur, grey or gingery brown with longer black hairs, small ears, a narrow muzzle, and possess a partially prehensile tail and feet that allow them to climb. The population occurs sparsely across a wide area and common in favourable habitat, especially in years of good rainfall. Ningaui ridei was first described in 1975, one of two species of a new genus discovered amongst the poorly known mammals of the western regions of Australia.

Contents

Taxonomy

Ningaui ridei and the Pilbara species, Ningaui timealeyi , were two species of Ningaui described by Australian biologist Mike Archer when the genus was erected in 1975 (the southern species, Ningaui yvonneae , would be described in 1983), although the Pilbara ningaui was designated the type species. The Wongai ningaui was described from two subadult specimens collected near Laverton in Western Australia. The scientific name of this species honours the Australian naturalist W. D. L. Ride, [4] who recognised the paraphyly of specimens that had been assigned to Planigale , including some that Archer placed with the new species. [3]

The common name Wongai ningaui was recognised in the 2001 census of Australian vertebrates; [5] the species is also referred to Ride's ningaui. [6]

Description

A species of Ningaui . with a combined head and body length of 58 to 75 millimetres, tail length of 60 to 70 mm and weight range of 6.5 to 10.5 grams. The females present 6 to 8 teats. The appearance of the pelage is spiky and dishevelled, with grey hair mixed with brown or ginger; the obvious guard hairs are black. The ears do not extend far above the fur at the crown of the head, the eyes are close set and relatively small, and their face narrows at the muzzle. A gingery colour appears at the side of the head and at the lower parts of the ears. Flanks are a yellow-grey colour, and the ventral side is whitish. [6]

Ningaui ridei occurs with the superficially similar species Ningaui yvonneae in a narrow overlap of their distribution range west of Kalgoorlie, they may be distinguished in the field by the length of the first toe. The first toe of the hindfoot is level with the interdigital pads at the lower surface, a diagnosis that separates this species from the shorter toe of N. yvonneae. [6]

Even smaller than a house mouse, the Wongai ningaui is greyish above and lighter below. It has a semi-prehensile tail, needle sharp teeth and a long snout. The name ningaui derives from an Aboriginal word for tiny mythological beings that are hairy, have short feet and only come out at night. Ningauis use their sharp teeth to kill their insect prey by swiftly biting them around the head. They hunt by night and rest among the spinifex hummocks by day. The females have as many as five to seven young, the breeding season beginning in October. [1]

Distribution and habitat

The Wongai ningaui lives mostly in the interior of Australia, on dunes or sandplains that have spinifex, or grasslands and occasional trees such as acacias, desert oaks and mulga, Australian Cypress Pine and arid heathland plants. [1] The distribution range begins west of Kalgoorlie in Western Australia across northern South Australia and southern Northern Territory to southwestern Queensland. They are sparsely distributed but may be locally common. [6] The population decreases if annual rainfall is low. [2]

Behaviour

A solitary and nocturnal animal that resides in hummocks of Triodia , or within a log, or tunnel just below the ground. They forage for invertebrates, most of which are insects less than ten millimetres, but may pursue larger prey such as spiders, grasshoppers and cockroaches. When conditions are unsuitable the species is able to reduce its requirements by entering a state of torpor. The litter size is five to seven young, these remain at a nest site until six weeks and gain independence by thirteen weeks; only a few young survive to reproduce in the next season. The female bears young during September to October and may rear a second litter in the same year. [6]

Conservation

The IUCN Red List assessed the conservation status of the species in 2015 as least concern, with a population that is unlikely to be in decline and not meeting the criteria of a greater threat of extinction. Ningaui ridei is found within protected areas and conservation reserves in parts of its distribution range. [2] Regional authorities, in Queensland and the Northern Territory, also list this species by the conservation status least concern.

Related Research Articles

<span class="mw-page-title-main">Dasyuridae</span> Family of marsupials

The Dasyuridae are a family of marsupials native to Australia and New Guinea, including 71 extant species divided into 17 genera. Many are small and mouse-like or shrew-like, giving some of them the name marsupial mice or marsupial shrews, but the group also includes the cat-sized quolls, as well as the Tasmanian devil. They are found in a wide range of habitats, including grassland, underground, forests, and mountains, and some species are arboreal or semiaquatic. The Dasyuridae are often called the 'marsupial carnivores', as most members of the family are insectivores.

The former subfamily Planigalinae contained the planigales and the ningauis: very small marsupial carnivores native to Australia which are, like the quolls, antechinuses, dibblers, Tasmanian devil, and many others, part of the biological order Dasyuromorphia: the carnivorous marsupials. The subfamily is now contained in the Sminthopsinae subfamily, and the two genera are split between two different tribes; the planigales are by themselves in their own tribe, while the ningaui are lumped with the dunnarts and the Kultarr.

<span class="mw-page-title-main">Lesser bilby</span> Extinct species of marsupial

The lesser bilby, also known as the yallara, the lesser rabbit-eared bandicoot or the white-tailed rabbit-eared bandicoot, was a rabbit-like marsupial. The species was first described by Oldfield Thomas as Peregale leucura in 1887 from a single specimen from a collection of mammals of the British Museum. Reaching the size of a young rabbit, this species lived in the deserts of Central Australia. Since the 1950s–1960s, it has been believed to be extinct.

<span class="mw-page-title-main">Little red kaluta</span> Species of marsupial

The little red kaluta is a small, reddish-brown, shrew-like mammal native to dry grasslands of northwest 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.

<span class="mw-page-title-main">Kultarr</span> Species of marsupial

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.

<span class="mw-page-title-main">Sminthopsinae</span> Subfamily of marsupials

The subfamily Sminthopsinae includes several genera of small, carnivorous marsupials native to Australia: kultarrs, ningauis, dunnarts, and planigales.

<span class="mw-page-title-main">Sminthopsini</span> Tribe of marsupials

Smintopsini is a tribe of marsupial in the family Dasyuridae.

<span class="mw-page-title-main">Pilbara ningaui</span> Species of marsupial

The Pilbara ningaui, sometimes known as Ealey's ningaui, is a tiny species of marsupial carnivore found in Australia.

<span class="mw-page-title-main">Southern ningaui</span> Species of marsupial

The southern ningaui is a tiny marsupial carnivore belonging to the Dasyuridae family. Similar in appearance to Ningaui ridei, found throughout central Australia, this species occurs in spinifex on semi-arid sandplains across the southern coast of the continent. The fur is a tawny or greyish olive colour, light grey below, and distinguished by shades of cinnamon. The southern ningaui prefers smaller prey, including insects and spiders, but capable of killing and consuming larger animals such as cockroaches and skinks. Their narrow muzzle is used with quick and fierce bites about the head to despatch their meal. The species was first described in 1983, and placed within the genus Ningaui.

<i>Ningaui</i> Genus of marsupials

Ningaui is a genus of small species of the marsupial dasyurid family. Along with the planigales, they are among the smallest marsupials.

<span class="mw-page-title-main">Sandhill dunnart</span> Species of marsupial

The sandhill dunnart is a species of small carnivorous Australian marsupial of the family Dasyuridae. It is known from four scattered arid areas of Australia: near Lake Amadeus in Northern Territory, the central Eyre Peninsula in South Australia, the southwestern edge of the Great Victoria Desert in Western Australia, and at Yellabinna in South Australia.

<span class="mw-page-title-main">Golden bandicoot</span> Species of marsupial

The golden bandicoot is a short-nosed bandicoot found in northern Australia. It is the smallest of its genus.

<span class="mw-page-title-main">Flute-nosed bat</span> Species of bat

The flute-nosed bat is a vespertilionid bat with an unusually shaped nose, the tubular nostrils facing outward from the end of the muzzle. They occur in the north of the Australian state of Queensland, in Indonesia, and on Papua New Guinea.

The Forrest's mouse, or desert short-tailed mouse, is a small species of rodent in the family Muridae. It is a widespread but sparsely distributed species found across arid and semi-arid inland Australia, commonly found in tussock grassland, chenopod shrubland, and mulga or savannah woodlands.

Western pebble-mound mouse or Ngadji, species Pseudomys chapmani, is a burrowing and mound building rodent in the family Muridae. They occur in the Pilbara, a remote region in the northwest of Australia.

<span class="mw-page-title-main">Northern marsupial mole</span> Species of marsupial

The northern marsupial mole or kakarratul is a marsupial in the family Notoryctidae, an endemic animal of arid regions of Central Australia. It lives in the loose sand of dunes and river plains in the desert, spending nearly its entire life beneath ground. The facial features are reduced or absent, their small and strong body, weighing little more the 30 grams, is extremely specialised to moving through sand in search of prey. The species is elusive and it is one of the most poorly understood mammals of Australia.

<span class="mw-page-title-main">Central netted dragon</span> Species of lizard

The central netted dragon or central netted ground dragon is a species of agamid lizard occurring in a wide range of arid to semiarid regions of Australia. It is widespread across the continent, commonly found in open, sandy, desert habitats. It is a popular pet and can often be found in zoos.

Eric Herbert Mitchell "Tim" Ealey, 29 March 1927 - 21 October 2020, was an Australian biologist, known for his contributions to science, the environment and conservation awareness and was the recipient of a Medal of the Order of Australia. Ealey has received international recognition for his works, and nationally acknowledged for a program that involved schools in rehabilitation of the environment. Ealey was commemorated in the specific epithet of a tiny marsupial, Ningaui timealeyi, he discovered in the Pilbara region of Western Australia. Amongst his works was research on the monotreme family of Tachyglossidae, the species of echidnas. Ealey worked for the Antarctic Division in the 1950s, researching the fauna of Heard Island.

References

  1. 1 2 3 Groves, C. P. (2005). "Order Diprotodontia". In Wilson, D. E.; Reeder, D. M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 43–70. ISBN   978-0-8018-8221-0. OCLC   62265494.
  2. 1 2 3 Woinarski, J., van Weenen, J. & Burbidge, A. 2016. Ningaui ridei. The IUCN Red List of Threatened Species 2016: e.T40529A21943973.
  3. 1 2 Archer, M. (1975). "Ningaui, a new genus of tiny dasyurids (Marsupialia) and two new species, N. timealeyi and N. ridei, from arid Western Australia". Memoirs of the Queensland Museum. 17: 237–249.
  4. McKenzie, N. L.; Dickman, C. R. (1995). "Wongai Ningaui". In Strahan, Ronald (ed.). The Mammals of Australia. Reed Books. pp. 116–117. ISBN   0-7301-0484-2.
  5. "Species Ningaui ridei Archer, 1975. Wongai Ningaui". Australian Faunal Directory . Australian Government.
  6. 1 2 3 4 5 Menkhorst, P.W.; Knight, F. (2011). A field guide to the mammals of Australia (3rd ed.). Melbourne: Oxford University Press. p. 66. ISBN   9780195573954.