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Red-necked Wallaby[1] and
Bennett's Wallaby
Bennett's Wallaby (M. r. rufogriseus), Freycinet Park, Tasmania
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: Macropodidae
Genus: Macropus
Species: M. rufogriseus
Binomial name
Macropus rufogriseus
(Desmarest, 1817)
Subspecies

M. r. rufogriseus, Bennett's Wallaby
M. r. banksianus, Red-necked Wallaby
M. r. fruticus

The Red-necked Wallaby (Macropus rufogriseus) is a medium-sized marsupial macropod, common in the more temperate and fertile parts of eastern Australia, including Tasmania.

Contents

Physical characteristics

Red-necked Wallabies are distinguished by their black nose and paws, white stripe on the upper lip, and grizzled medium grey coat with a reddish wash across the shoulders. They can weigh 13.80 to 18.60 kg and attain a head-body length of 90 cm, altough males are generally bigger than females.

Range and habitat

Joey in pouch

Red-necked Wallabies are found in coastal scrub and sclerophyll forest throughout coastal and highland eastern Australia, from Rockhampton, Queensland to the South Australian border; in Tasmania and on many of the Bass Strait islands (although it is unclear which of the islands have native populations as opposed to introduced ones). In Tasmania, north-east New South Wales and coastal Queensland, their numbers have expanded over the past 30 years because of a reduction in hunting pressure and the partial clearing of forest to result in a mosaic of pastures where wallabies can feed at night, alongside bushland where they can shelter by day. For reasons not altogether clear, it is less common in Victoria.

Behaviour

Red-necked wallabies are mainly solitary but will gather together when there’s an abundance of resources such as food, water or shelter. When they do gather in groups, they have a social hierarchy similar to other wallaby species. Red-necked wallabies are mainly crepuscular. They spent most of the daytime resting in vegetation.

A female’s estrous lasts 32 days. During courting, the female will first licks the male’s neck. The male will then rubs his cheek against the female’s. Then the male and female will fight briefly, standing upright like two males. After that they finally mate. A couple will stay together for one day before separating. Females and their offspring stay together for only a month. However females may stay in the home range of their mothers for life while males leave at two years old.

Subspecies

There are three subspecies.

  • M. r. banksianus (Quoy & Gaimard, 1825) – Red-necked Wallaby
  • M. r. rufogriseus (Desmarest, 1817) - Bennett's Wallaby
  • M. r. fruticus Ogilby, 1838

The Tasmanian form, Macropus rufogriseus rufogriseus, usually known as Bennett's Wallaby is smaller (as island species nearly always are), has longer, shaggier fur, and breeds in the late summer, mostly between February and April. They have adapted to living in proximity to humans and can be found grazing on lawns in the fringes of Hobart and other urban areas.

Juvenile Macropus rufogriseus rufogriseus

The mainland form, Macropus rufogriseus banksianus, breeds all year round. Interestingly, captive animals maintain their breeding schedules; Tasmanian females that become pregnant out of their normal season delaying birth until summer, which can be anything up to eight months later.

External introductions

A population of albino Bennett's Wallabies live on Bruny Island[3]

There is a small colony of Red-necked Wallabies on the island of Inchconnachan, Loch Lomond in Argyll and Bute, Scotland. This was founded in 1975 with two pairs taken from Whipsnade Zoo, and had risen to 26 individuals by 1993.

There were at one time small colonies in England: in the Peak District, in Cumbria, and in the Ashdown Forest, in East Sussex. These were established c.1900, and are now believed to be locally extinct, although unconfirmed sightings are still reported from time to time.

In France, in the southern part of the Forest of Rambouillet, 50 kilometres west from Paris, there is a wild group of around 30 Bennett's Wallabies. This population has been present since the seventies, when some individuals escaped from the zoological park of Émancé after a storm.[4]

In 1870, several wallabies were transported from Tasmania to Christchurch, New Zealand. Two females and one male from this stock were later released about Te Waimate, the property of Waimate's first European settler. The year 1874 saw them freed in the Hunters Hills, where over the years their population has dramatically increased. Wallabies are now resident on approximately 350,000 Ha of terrain centered upon the Hunters Hills, including the Two Thumb Ranges, the Kirkliston Range and The Grampians. Given their numbers, some now consider them pests.[5]

References

  1. ^ Groves, C. (2005). Wilson, D. E., & Reeder, D. M.. ed. Mammal Species of the World (3rd ed.). Johns Hopkins University Press. pp. 65. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3.  
  2. ^ McKenzie, N., Menkhorst, P. & Lunney, D. (2008). Macropus rufogriseus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 28 December 2008. Database entry includes justification for why this species is of least concern
  3. ^ South Pacific Travel Specialists - What to do in Tasmania
  4. ^ http://www.cerf78.fr/index.php?option=com_content&task=view&id=215&Itemid=307
  5. ^ Waimate District Council







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