Central Rock Rat (Zyzomys pedunculatus)

The Central Rock Rat


The central rock rat was first recorded by science over 100 years ago. Very little is known about the history of this species. Central rock rats are nocturnal and are classified as “critically endangered”. Although there is no specific threat currently identified, the population of the central rock rat is scattered throughout the western portions of the MacDonnell Ranges of Australia. The fear of extinction is due to a low population density of the 17 sites where the species can be found. There are current efforts being made at the Alice Springs Desert Park to breed central rock rats. Due to the environment preferred by the central rock rat there is very little information on them because they are difficult to find.

Thick yellow fur that fades into a creamy tan on the underbelly is present. The feet are a similar colour as the underbelly. The average head and body measurement of the central rock rat is 120mm, the average tail measures 120mm as well, and the average weight is about 60g. There are scales on the tail of the central rock rat that are well protected by thick brown fur. Central rock rats have round ears and a “roman” nose.

Seeds comprise a major portion of the central rock rat’s diet; leaves are eaten as well but appear of lesser importance. This species will also eat insects on occasion. The seeds are eaten from the ground.

Young central rock rats have been observed in the wild in June. The average litter bred in captivity contained 2 young but single litter of 4 has been reported.

Further Information on the Central Rock Rat:

Bibliography

Animal Info-Central Rock Rat, Massicot, P., 8/6/04, http://www.animalinfo.org/species/rodent/zyzopedu.htm.

A Field Guide to the Mammals of Australia, Menkhorst, P. and Knight, F. ©2001.

Central Rock Rat, Rural Helicopters (NT) PTY LTD, 8/6/04, http://www.ruralheli.com.au/rat.html.