Lake Mackay hare-wallaby

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Lake Mackay hare-wallaby [1]
Temporal range: Recent
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Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: Macropodidae
Genus: Lagorchestes
Species:
L. asomatus
Binomial name
Lagorchestes asomatus
Finlayson, 1943

The Lake Mackay hare-wallaby (Lagorchestes asomatus), also known as the central hare-wallaby or kuluwarri, is an extinct species of macropod formerly found in central Australia. Very little is known about it. [3]

Contents

Family

The Lake Mackay hare-wallaby belongs to the family Macropodidae, the largest in the order Diprodontia. Along with possums, gliders, potoroos, and kangaroos, the Lake Mackay hare-wallaby belongs to the suborder Phalangerida. The suborder Vombatiformes consist of koalas and wombats. The Lake Mackay hare-wallaby's subfamily, Macropodinae, comprises 61 species from 10 genera. Macropodidae's other suborder, Sthenurinae, may have included about 20 species during the Pleistocene period according to fossil record. [4]

History

The Lake Mackay hare-wallaby is known only from a single animal collected by explorer/geologist Michael Terry in 1932 between Mount Farewell and the northern end of Lake Mackay in the Northern Territory. [5] Only the skull was kept, and this is the only physical evidence scientists have today for the Lake Mackay hare-wallaby's existence; however, there are records of anecdotal evidence given by Aboriginal Australians. [6]

General description

Rendering of the related spectacled hare-wallaby Lag cons.jpg
Rendering of the related spectacled hare-wallaby

According to Aboriginal knowledge, the Lake Mackay hare-wallaby was covered in soft, long, grey fur and had especially long fur covering the tops of its feet. It had a short, thick tail and hopped like a kangaroo. The Lake Mackay hare-wallaby was comparable in size to a boodie or rabbit. [6] They were mostly said to only produce one offspring at a time, but a few people reported two. [2]

Behavior

The Lake Mackay hare-wallaby created shelter using Triodia , known commonly as spinifex. They allegedly sheltered in shallow depressions below clumps of spinifex, created grass-lined nests, and sometimes dug short burrows similar to those of the Rufous hare-wallaby. They were referred to as "stupid" and "deaf" by the Aborigines, because when hunted they would not leave their shelter, therefore making them easy prey. [6]

Diet

The Lake Mackay hare-wallaby was said to have eaten grass leaves and seeds and desert quandong fruit. [6]

Factors leading to extinction

Important factors in the decline of hare-wallabies were likely predation by foreign cats and foxes introduced to their habitat. [7] The feral cat is suspected to have been one of the main predatory contributors to the decline of the species. In addition to predators, the introduction of rabbits to central Australia also strained the populations of Lake Mackay hare-wallaby by creating competition over resources such as food and shelter.

The droughts that affected Central Australia in the 1900s were responsible for a surge of forest fires which can also be attributed to the decline of the Lagorchestes asomatus. Human industrial efforts also contributed to the extinction of the Lake Mackay hare-wallaby. Large grass tussocks, which were used by the Lake Mackay hare-wallabies for shelter, were removed for Australia's pastoral industry. As a result, the wallabies became easy prey for eagles, foxes, and cats. [8]

Location and climate

The Lake Mackay hare-wallaby was found in the central and western deserts of Australia [2] up until sometime between the 1940s and 1960s. Oral history states that it was present in the Tanami Desert of the Northern Territory of Australia until the late 1940s and in the Gibson Desert until the early 1960s. [6] Within these deserts, the Lake-Mackay hare-wallaby inhabited sand plains and dunes that contained spinifex. [6] The land in these regions is primarily sandy clay soils filled with salt and halophytic grasses and shrubs. These grasses and shrubs are commonly known as spinifex and mulga. The Lake Mackway hare-wallaby would use the leafy shrubs as coverage for their burrows, especially in hot weather. Not only did the plants help with sheltering them, but they were also a primary food source. [2]

The climate within the Australian desert is mostly dry and arid. Despite this fact, the summer months are dominated by rainfall but the reliability of rainfall is often minimal. The Tanami Desert specifically is described as"a warm dry monsoonal climate and is mostly semi-desert." The average rainfall is roughly 479mm and tends to increase from September to February while decreasing to a minimum in July. Maximum temperatures often occur in December while minimums occur around June and July. Due to the lack of water drought is very common. Increased introduction of exotic herbivores has led to vegetation changes in the area as well. [9]

Conservation efforts

In 2001 there was an effort to reintroduce two species of hare-wallaby, the mala (Lagorchestes hirsutus) and the mernine (Lagostrophus fasciatus). The pressures to their habitats over the past 200 years had caused the two species to become extinct on the mainland. At the time of reintroduction there were only about 250 L. hirsutus in captivity. The project group decided to translocate 34 wallabies into an area, which would give useful information about future reintroductions, in the Shark Bay area of the Peron Peninsula. The wallabies were tracked throughout their exposure in their new habitat, which had the pastoral sheep and cattle removed that would have ruined the studies measurement of habitat selection. The results of the study demonstrated that the variation and flexibility of habitat selections were such that future re-introductions wouldn't have to adhere to very strict areas that have vegetation at a high density. This is positive for future attempts because Australia has experienced a thinning of vegetation due to introduced species [9]

Related Research Articles

<span class="mw-page-title-main">Great Sandy Desert</span> Desert in Northern Western Australia

The Great Sandy Desert is an interim Australian bioregion, located in the northeast of Western Australia straddling the Pilbara and southern Kimberley regions and extending east into the Northern Territory. It is the second largest desert in Australia after the Great Victoria Desert and encompasses an area of 284,993 square kilometres (110,036 sq mi). The Gibson Desert lies to the south and the Tanami Desert lies to the east of the Great Sandy Desert.

<span class="mw-page-title-main">Wallaby</span> Common name of small- or mid-sized macropods found in Australia and New Guinea

A wallaby is a small or middle-sized macropod native to Australia and New Guinea, with introduced populations in New Zealand, Hawaii, the United Kingdom and other countries. They belong to the same taxonomic family as kangaroos and sometimes the same genus, but kangaroos are specifically categorised into the four largest species of the family. The term "wallaby" is an informal designation generally used for any macropod that is smaller than a kangaroo or a wallaroo that has not been designated otherwise.

<span class="mw-page-title-main">Macropodidae</span> Family of marsupial mammals

Macropodidae is a family of marsupials that includes kangaroos, wallabies, tree-kangaroos, wallaroos, pademelons, quokkas, and several other groups. These genera are allied to the suborder Macropodiformes, containing other macropods, and are native to the Australian continent, New Guinea and nearby islands.

<span class="mw-page-title-main">Pademelon</span> Small arboreal marsupial

Pademelons are small, furry, hopping mammals in the genus Thylogale, found in Australia and New Guinea. They are some of the smallest members of the macropod family (Macropodidae), which includes the similar-looking but larger kangaroos and wallabies. Pademelons are distinguished by their small size and their short, thick, and sparsely-haired tails. Like other marsupials, they carry their young in a pouch.

<span class="mw-page-title-main">Bridled nail-tail wallaby</span> Species of marsupial

The bridled nail-tail wallaby, also known as the bridled nail-tailed wallaby, bridled nailtail wallaby, bridled wallaby, merrin, and flashjack, is a vulnerable species of macropod. It is a small wallaby found in three isolated areas in Queensland, Australia, and whose population is declining. In early 2019 the total population of the species was estimated to be fewer than 500 mature individuals in the wild and 2285 in captivity.

<span class="mw-page-title-main">Eastern hare-wallaby</span> Extinct species of marsupial

The eastern hare-wallaby, once also known as the common hare wallaby, is an extinct species of wallaby that was native to southeastern Australia. It was first described by John Gould in 1841.

<span class="mw-page-title-main">Deserts of Australia</span> Deserts in Australia

The deserts of Australia or the Australian deserts cover about 2,700,000 km2 (1,000,000 sq mi), or 18% of the Australian mainland, but about 35% of the Australian continent receives so little rain, it is practically desert. Collectively known as the Great Australian desert, they are primarily distributed throughout the Western Plateau and interior lowlands of the country, covering areas from South West Queensland, Far West region of New South Wales, Sunraysia in Victoria and Spencer Gulf in South Australia to the Barkly Tableland in Northern Territory and the Kimberley region in Western Australia.

<span class="mw-page-title-main">Macropodiformes</span> Suborder of marsupials

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.

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

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.

<span class="mw-page-title-main">Rufous hare-wallaby</span> Species of marsupial

The rufous hare-wallaby, also known as the mala, is a small macropod found in Australia. It was formerly widely distributed across the western half of the continent, but naturally occurring populations are now confined to Bernier Island and Dorre Island Islands off Western Australia.

<span class="mw-page-title-main">Spectacled hare-wallaby</span> Species of marsupial

The spectacled hare-wallaby is a species of macropod found in Australia and New Guinea. In Australia, a small sub-population is found on Barrow Island, while the mainland type is widespread, though in decline, across northern regions of the country.

<i>Lagorchestes</i> Genus of marsupials

Lagorchestes is a genus of small, rabbit-like mammals commonly known as hare-wallabies. It includes four species native to Australia and New Guinea, two of which are extinct. Hare-wallabies belong to the macropod family (Macropodidae) which includes kangaroos, wallabies, and other marsupials.

<span class="mw-page-title-main">Western brush wallaby</span> Species of marsupial

The western brush wallaby, also known as the black-gloved wallaby, is a species of wallaby found in the southwestern coastal region of Western Australia. The wallaby's main threat is predation by the introduced red fox. The IUCN lists the western brush wallaby as Least Concern, as it remains fairly widespread and the population is believed to be stable or increasing, as a result of red fox control programs.

<span class="mw-page-title-main">Desert mouse</span> Species of rodent

The desert mouse, also known as the brown desert mouse, is a species of rodent in the family Muridae. It is endemic to Australia. The first desert mouse specimen was collected by Australian zoologist Gerard Krefft on the Blandowski Expedition in 1856-57, between Gol Gol Creek and the Darling River.

<span class="mw-page-title-main">Central rock rat</span> Species of rodent

The central rock rat, also known as the central thick-tailed rock-rat, Macdonnell Range rock-rat, and Australian native mouse, is a Critically Endangered species of rodent in the family Muridae endemic to Australia.

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

Macropodinae is a subfamily of marsupials in the family Macropodidae, which includes the kangaroos, wallabies, and related species. The subfamily includes about ten genera and at least 51 species. It includes all living members of the Macropodidae except for the banded hare-wallaby, the only surviving member of the subfamily Lagostrophinae.

References

  1. Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 62–63. ISBN   0-801-88221-4. OCLC   62265494.
  2. 1 2 3 4 Burbidge, A.A.; Woinarski, J. (2016). "Lagorchestes asomatus". IUCN Red List of Threatened Species . 2016: e.T11160A21954573. doi: 10.2305/IUCN.UK.2016-2.RLTS.T11160A21954573.en . Retrieved 12 November 2021.
  3. Menkhorst, Peter (2001). A Field Guide to the Mammals of Australia. Oxford University Press. p. 108.
  4. "Wallabies and Kangaroos (Macropodidae)." Encyclopedia.com. HighBeam Research, n.d. Web. 29 Oct. 2015.
  5. Pavey, Chris. "Central hare-wallaby" (PDF). Department of Land Resource Management. Northern Territory Government. Archived from the original (PDF) on 2016-03-04. Retrieved 28 October 2015.
  6. 1 2 3 4 5 6 Burbidge, A.A.; Johnson, K.A.; Southgate, R.I. (1988). "Aboriginal Knowledge of animals of the central deserts of Australia". Australian Wildlife Research. 15. doi: 10.1071/wr9880009 .
  7. "Descriptions and articles about the Lake Mackay hare-wallaby (Lagorchestes asomatus) - Encyclopedia of Life". Encyclopedia of Life. Retrieved 2015-10-29.
  8. Ingleby, S; Westoby, M (1992). "Habitat requirements of the spectacled hare-wallaby (Lagorchestes conspicillatus) in the Northern Territory and Western Australia". Wildlife Research. 19 (6): 721–741. doi:10.1071/wr9920721.
  9. 1 2 Hardman; Blair; Moro (2006). "Importance of Diurnal Refugia to a Hare-Wallaby Reintroduction in Western Australia". Wildlife Research. 33 (5): 355–359. doi:10.1071/WR05088.