Allied rock-wallaby

Allied rock-wallaby
	Allied rock-wallaby on Magnetic Island, Queensland
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Infraclass:	Marsupialia
Order:	Diprotodontia
Family:	Macropodidae
Genus:	Petrogale
Species:	P. assimilis
Binomial name
	Petrogale assimilis; Ramsay, 1877
	Allied rock-wallaby range

The allied rock-wallaby or Weasel rock-wallaby (Petrogale assimilis) is a species of rock-wallaby found in northeastern Queensland, Australia. It forms part of the P. lateralis/penicillata species complex and is very similar to six other species of rock-wallaby found in this area; these include the Cape York rock-wallaby (P. coenensis), the unadorned rock-wallaby (P. inornata), the Herbert's rock-wallaby (P. herberti), the Godman's rock-wallaby (P. godmani), the Mareeba rock-wallaby (P. mareeba) and the Mount Claro rock-wallaby (P. sharmani).^[3]^[4]

Description

Few features distinguish the allied rock-wallaby from its close relatives but each species lives in a different part of Queensland and northern New South Wales; where their ranges overlap slightly, there is some hybridisation. They all have upper parts that range from brown to grey, and paler underparts. They usually have a dark muzzle and a dark patch around the armpits. On the face is a pale cheek stripe, and across the hips is another pale stripe.^[4]

Distribution and habitat

The allied rock-wallaby is endemic to Queensland in Australia. Its range extends from Townsville to the Burdekin River, the Bowen River, Croydon and Hughenden, and includes Magnetic and Palm Islands. It occurs at elevations of up to 1,000 m (3,300 ft) in rocky areas, both in woodland and in more lightly-treed areas, even when agricultural land is nearby.^[2] Typical habitat is mountainous areas with cliffs, ledges, caves and rock piles.^[4]

Behaviour

The diet comprises grasses and shoots of herbaceous plants, with up to thirty percent of the diet being browsed from bushes. They have a small home range during the wet season when food is readily available, but range much more widely during the dry season. While foraging, out-of-pouch young are often left hidden in rock crevices.^[4]

The allied rock-wallaby is behaviourally monogamous, but not all the offspring are sired by the supposed father. The gestation period is about thirty days, the joey leaves the pouch at six to seven months and is fully weaned when nearly a year old.^[4] Young adults may disperse over distances of two kilometres or so, and longevity is about seven years.^[4]

Status

P. assimilis has a wide distribution in Queensland and is common within that range. The population trend seems to be stable and no particular threats to this species are known. For these reasons, the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".^[2] Some factors that affect rock wallabies are climate change, which may alter the flora of their habitat, introduced predators such as dogs and foxes, degradation, loss and fragmentation of habitat, competition from introduced grazing animals and changing practices for periodic burning.^[4]

References

^ 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. 66–67. ISBN 978-0-8018-8221-0. OCLC 62265494.
^ ^a ^b ^c Winter, J.; Burnett, S.; Martin, R. (2016). "Petrogale assimilis". IUCN Red List of Threatened Species. 2016: e.T40569A21954955. doi:10.2305/IUCN.UK.2016-2.RLTS.T40569A21954955.en. Retrieved 19 February 2022.
^ Menkhorst, Peter (2001). A Field Guide to the Mammals of Australia. Oxford University Press. p. 130.
^ ^a ^b ^c ^d ^e ^f ^g Richardson, Ken (2012). Australia's Amazing Kangaroos: Their Conservation, Unique Biology and Coexistence with Humans. Csiro Publishing. pp. 114–119. ISBN 978-0-643-10715-1.

External links

Petrogale assimilis. Animal Diversity Web

[MSW-1] 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. 66–67. ISBN 978-0-8018-8221-0. OCLC 62265494.

[iucn-2] Winter, J.; Burnett, S.; Martin, R. (2016). "Petrogale assimilis". IUCN Red List of Threatened Species. 2016: e.T40569A21954955. doi:10.2305/IUCN.UK.2016-2.RLTS.T40569A21954955.en. Retrieved 19 February 2022.

[Menkhorst-3] Menkhorst, Peter (2001). A Field Guide to the Mammals of Australia. Oxford University Press. p. 130.

[Richardson-4] ^ ^a ^b ^c ^d ^e ^f ^g Richardson, Ken (2012). Australia's Amazing Kangaroos: Their Conservation, Unique Biology and Coexistence with Humans. Csiro Publishing. pp. 114–119. ISBN 978-0-643-10715-1.

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Allied rock-wallaby

Description

Distribution and habitat

Behaviour

Status

References

Further reading

External links

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