Broad-toothed Rat (Mastacomys fuscus mordicus)
Photo: Ken Green
Description
- The Broad-toothed Rat is a medium-sized native rodent with a broad face, short tail, and stocky body.
- It measures 14–17 cm in head/body length and has a tail length of 10–13 cm.
- Its fur is soft and dense, brown tinged with rufous on the dorsal side and merging to grey underneath, and it may have a green tinge due to the presence of algae.
- The ears are small and round with tufts of hair inside, and the feet are brown above and below.
- The lightly-haired tail is dark above, becoming slightly lighter underneath.
- This rat has large molars, a rounded head, well-developed cheeks, and large jaw muscles.
- The Broad-toothed Rat is mostly nocturnal and herbivorous, feeding on grasses, sedges, shrub foliage, fungi, bark, and moss.
- Breeding occurs between October and March, with females giving birth to 1-4 young per litter, with 1-2 litters per season.
- Sexual maturity is reached in 8-10 months, and the species lives for approximately 2-3 years.
- The Broad-toothed Rat is currently threatened by habitat loss and fragmentation, predation by foxes and cats, and possibly climate change.
Where are they
- The Broad-toothed Rat’s distribution is broken up across Vic, NSW and the ACT.
- It’s found in Namadgi National Park in the ACT.
- They prefer alpine and subalpine heaths and eucalypt woodlands, wet sclerophyll forest, grasslands and wet sedgelands from sea level to 2200m.
Conservation status
- National – Endangered (Environment Protection and Biodiversity Conservation Act 1999).
- Australian Capital Territory – Endangered (Nature Conservation Act 2014).
Conservation actions
Conservation actions aim to:
- maintain and protect habitat
- mitigate feral predator impact
- reduce the extent and intensity of fires in their habitat
- control feral herbivores
- long term monitoring to establish trends
- consider translocation if necessary, where populations are unnaturally fragmented and do not recover without assistance