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*the '''euro''' or '''western wallaroo''' (''O. r. erubescens'')<ref>TF Clancy and DB Croft (1992): ''Population dynamics of the common wallaroo (''Macropus robustus erubescens'') in arid New South Wales''. Wildlife Research 19(1) 1 - 15. [http://www.publish.csiro.au/?paper=WR9920001 online link]</ref> – found covering most of the species' remaining range to the west; this subspecies is variable, but mostly brownish, in colour.<ref name=Menkhorst/> |
*the '''euro''' or '''western wallaroo''' (''O. r. erubescens'')<ref>TF Clancy and DB Croft (1992): ''Population dynamics of the common wallaroo (''Macropus robustus erubescens'') in arid New South Wales''. Wildlife Research 19(1) 1 - 15. [http://www.publish.csiro.au/?paper=WR9920001 online link]</ref> – found covering most of the species' remaining range to the west; this subspecies is variable, but mostly brownish, in colour.<ref name=Menkhorst/> |
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*the '''Barrow Island wallaroo''' (''O. r. isabellinus'') – this subspecies is restricted to [[Barrow Island, Western Australia|Barrow Island]] in [[Western Australia]] and is comparatively small. It is uniformly reddish-brown.<ref name=Menkhorst/> |
*the '''Barrow Island wallaroo''' (''O. r. isabellinus'') – this subspecies is restricted to [[Barrow Island, Western Australia|Barrow Island]] in [[Western Australia]] and is comparatively small. It is uniformly reddish-brown.<ref name=Menkhorst/> |
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*the '''Kimberley wallaroo''' (''O. r. woodwardi'') – this subspecies is found in the [[Kimberley region of Western Australia]] and in a band roaming through the [[Northern Territory]]. It is the palest of the four subspecies and is a dull brown-grey colour.<ref name=Menkhorst/> Kunwinjku of western Arnhem Land call this subspecies ''ngabudj''. They also have separate names for male and female, ''galkibard'' and ''wallaar'', respectively. A large male is called ''ganduki''.<ref>{{cite book|title=Fauna of Kakadu and the Top End| last=Goodfellow| first=D.| year=1993| isbn=1862543062|publisher=Wakefield Press | page=29}}</ref> This animal manages well in areas without permanent water and on a diet of nutrient-poor grasses, but it does need shelter.<ref |
*the '''Kimberley wallaroo''' (''O. r. woodwardi'') – this subspecies is found in the [[Kimberley region of Western Australia]] and in a band roaming through the [[Northern Territory]]. It is the palest of the four subspecies and is a dull brown-grey colour.<ref name=Menkhorst/> Kunwinjku of western Arnhem Land call this subspecies ''ngabudj''. They also have separate names for male and female, ''galkibard'' and ''wallaar'', respectively. A large male is called ''ganduki''.<ref name="Goodfellow 1993 29">{{cite book|title=Fauna of Kakadu and the Top End| last=Goodfellow| first=D.| year=1993| isbn=1862543062|publisher=Wakefield Press | page=29}}</ref> This animal manages well in areas without permanent water and on a diet of nutrient-poor grasses, but it does need shelter.<ref name="Goodfellow 1993 29"/> |
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The eastern wallaroo (''O. r. robustus'') — which is dark grey in colour — occupies the eastern slopes of the Great Dividing Range and the euro (''O. r. erubescens'') — which is mostly brownish in colour — occupies the land westward. |
The eastern wallaroo (''O. r. robustus'') — which is dark grey in colour — occupies the eastern slopes of the Great Dividing Range and the euro (''O. r. erubescens'') — which is mostly brownish in colour — occupies the land westward. |
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==Status== |
==Status== |
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The eastern wallaroo as a subspecies is not considered to be threatened, but the Barrow Island subspecies (''O. r. isabellinus'') is classified as [[Vulnerable species|vulnerable]].<ref name=iucn>{{Cite iucn | author = Ellis, M. | author2 = Menkhorst, P. | author3 = van Weenen, J. | author4 = Burbidge, A. | author5 = Copley, P. | author6 = Denny, M. | author7 = Woinarski, J. | author8 = Mawson, P. | author9 = Morris, K. | |
The eastern wallaroo as a subspecies is not considered to be threatened, but the Barrow Island subspecies (''O. r. isabellinus'') is classified as [[Vulnerable species|vulnerable]].<ref name=iucn>{{Cite iucn | author = Ellis, M. | author2 = Menkhorst, P. | author3 = van Weenen, J. | author4 = Burbidge, A. | author5 = Copley, P. | author6 = Denny, M. | author7 = Woinarski, J. | author8 = Mawson, P. | author9 = Morris, K. | name-list-style = amp | title = ''Macropus robustus'' | volume = 2008 | page = e.T40565A10334447 | date = 2008 | doi = 10.2305/IUCN.UK.2008.RLTS.T40565A10334447.en }}</ref> |
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==Taxonomy== |
==Taxonomy== |
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In 2019, a reassessment of macropod taxonomy determined that the species should be moved from the genus ''[[Macropus]]'' to the genus ''[[Osphranter]]''.<ref name="macrosph">{{cite journal |last1=Celik |first1=Mélina |last2=Cascini |first2=Manuela |last3=Haouchar |first3=Dalal |last4=Van Der Burg |first4=Chloe |last5=Dodt |first5=William |last6=Evans |first6=Alistair |last7=Prentis |first7=Peter |last8=Bunce |first8=Michael |last9=Fruciano |first9=Carmelo |last10=Phillips |first10=Matthew |date=28 March 2019 |title=A molecular and morphometric assessment of the systematics of the ''Macropus'' complex clarifies the tempo and mode of kangaroo evolution |url= https://academic.oup.com/zoolinnean/article-abstract/186/3/793/5421215 |journal=Zoological Journal of the Linnean Society |volume=186 |issue=3 |pages= |
In 2019, a reassessment of macropod taxonomy determined that the species should be moved from the genus ''[[Macropus]]'' to the genus ''[[Osphranter]]''.<ref name="macrosph">{{cite journal |last1=Celik |first1=Mélina |last2=Cascini |first2=Manuela |last3=Haouchar |first3=Dalal |last4=Van Der Burg |first4=Chloe |last5=Dodt |first5=William |last6=Evans |first6=Alistair |last7=Prentis |first7=Peter |last8=Bunce |first8=Michael |last9=Fruciano |first9=Carmelo |last10=Phillips |first10=Matthew |date=28 March 2019 |title=A molecular and morphometric assessment of the systematics of the ''Macropus'' complex clarifies the tempo and mode of kangaroo evolution |url= https://academic.oup.com/zoolinnean/article-abstract/186/3/793/5421215 |journal=Zoological Journal of the Linnean Society |volume=186 |issue=3 |pages=793–812 |doi=10.1093/zoolinnean/zlz005 |access-date=1 March 2020}}</ref> This change was accepted by the [[Australian Faunal Directory]] in 2020.<ref name="afd2020">{{cite web|title=Names List for MACROPODIDAE, Australian Faunal Directory|url=https://biodiversity.org.au/afd/taxa/MACROPODIDAE/names|publisher=Australian Biological Resources Study, Australian Department of the Environment and Energy|accessdate=1 March 2020|date=13 February 2020}}</ref> |
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==References== |
==References== |
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{{Diprotodontia|M.}} |
{{Diprotodontia|M.}} |
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{{Taxonbar|from=Q691473}} |
{{Taxonbar|from=Q691473}} |
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Wallaroo[1] | |
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Euro (Osphranter robustus erubescens) | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Infraclass: | Marsupialia |
Order: | Diprotodontia |
Family: | Macropodidae |
Genus: | Osphranter |
Species: |
O. robustus
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Binomial name | |
Osphranter robustus Gould, 1841 | |
Subspecies | |
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Common wallaroo range |
The common wallaroo (Osphranter robustus), also known as the euro, hill wallaroo, or simply wallaroo[2] is a species of macropod. The word euro is particularly applied to one subspecies (O. r. erubescens).[3]
The eastern wallaroo is mostly nocturnal and solitary, and is one of the more common macropods. It makes a loud hissing noise and some of the other subspecies are sexually dimorphic, like most wallaroos.[4]
There are four subspecies:[1]
The eastern wallaroo (O. r. robustus) — which is dark grey in colour — occupies the eastern slopes of the Great Dividing Range and the euro (O. r. erubescens) — which is mostly brownish in colour — occupies the land westward.
Wallaroos are not a type of animal that has one or two mating seasons throughout the year, but rather females can give birth at any time during the year. Through a process called embryonic diapause they are able to get pregnant any time after giving birth, but the embryo does not start to develop until the previous joey is able to leave the pouch of the mother. Wallaroos are also polygynous, which means that the males can have multiple female partners.[7]
During the mating process, fighting occurs between males to attract a female. The fights normally do not end in one of the two wallaroos dying, but rather the two males will fight until one surrenders.[8]
The gestation period lasts around 30 to 38 days, after which the young joey travels into the mother's pouch where it suckles and develops.[7] The young joeys start to leave the pouch at around six months and by nine months they no longer spend most of their time in the pouch.[9] Male wallaroos are fully developed at around 18 to 20 months; females are fully developed at around 14 to 24 months.[7]
The relationship with the joey and their parents changes as the joey grows and gets older. During the time in which the joey is in the pouch, the father stays around to protect the joey and mother from predators, but once this protection is no longer needed the relationship weakens between the two. After the joey no longer needs its mother for food, it still maintains a close relationship with her.[8]
The eastern wallaroo as a subspecies is not considered to be threatened, but the Barrow Island subspecies (O. r. isabellinus) is classified as vulnerable.[2]
In 2019, a reassessment of macropod taxonomy determined that the species should be moved from the genus Macropus to the genus Osphranter.[10] This change was accepted by the Australian Faunal Directory in 2020.[11]
Macropus robustus |
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