Kangaroo Island Dunnart
Encyclopedia
The Kangaroo Island Dunnart (Sminthopsis aitkeni) is a dark sooty-grey coloured dunnart
Dunnart
Dunnarts are furry narrow-footed marsupials the size of a mouse, members of the genus Sminthopsis. They are mainly insectivorous. A male dunnart's Y chromosome has only 4 genes, making it the smallest known mammalian Y chromosome....

 species first discovered in 1969, with paler underparts of its body. It has an average body length of 170mm-198mm, a snout to anus length of 80-93 mm, a tail measurement of 90-105 mm, a hind foot of 17.5mm, ear length of 18mm and a weight which varies between 20-25 grams. The thin tail has the same colouring as described above.

Distribution and habitat

This dasyurid is found only on the western half of Kangaroo Island
Kangaroo Island
Kangaroo Island is Australia's third-largest island after Tasmania and Melville Island. It is southwest of Adelaide at the entrance of Gulf St Vincent. Its closest point to the mainland is off Cape Jervis, on the tip of the Fleurieu Peninsula in the state of South Australia. The island is long...

 in South Australia
South Australia
South Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...

, the island's only endemic mammal. The species inhabits mallee
Mallee Woodlands and Shrublands
Mallee Woodlands and Shrublands is a Major Vegetation Group which occurs in semi-arid areas of southern Australia. The vegetation is dominated by mallee eucalypts which are rarely over 6 metres high...

 heath
Heath (habitat)
A heath or heathland is a dwarf-shrub habitat found on mainly low quality acidic soils, characterised by open, low growing woody vegetation, often dominated by plants of the Ericaceae. There are some clear differences between heath and moorland...

 on laterite
Laterite
Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all laterites are rusty-red because of iron oxides. They develop by intensive and long-lasting weathering of the underlying parent rock...

 soils. Only 22 of the species have ever been found.

Social organisation and breeding

Little is known of the behavior of the Kangaroo Island Dunnart, but the mating season is thought to be from September to January. Female Kangaroo Island dunnarts are oestrous.

External links

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