A small, burrowing native rodent, the New Holland Mouse is similar in size and appearance to the introduced House Mouse (Mus musculus), although it can be distinguished by its slightly larger ears and eyes, the absence of a notch on the upper incisors and the absence of a distinctive ‘mousy odour’. The New Holland Mouse body is grey-brown in colour and with a dusky-brown tail that is darker on the dorsal side. The species has a head-body length of approximately 65–90 mm, a tail length of approximately 80–105 mm (10–15% longer than the body) and a hind foot length of approximately 20–22 mm. Specimens of the New Holland Mouse from Tasmania are larger in weight than specimens from New South Wales (NSW) and Victoria; however, head-body length and skull measurements are similar between the Tasmanian and mainland forms of the species.
New Holland Mouse |
Pseudomys novaehollandiae
Status: Vulnerable on the EPBC Act list
Government evidence of impact of climate change:
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Australian Government, Conservation Advice, Pseudomys novaehollandiae
Climate change has been identified as a potential threat to the New Holland Mouse through alteration and further fragmentation of the species habitat.
Brereton et al. (2005) modelled the impact of a number of potential climate change scenarios on the distribution of a range of small mammals; including the New Holland Mouse; and concluded that future climate change could result in a decline of up to 50 in the distribution of the species. -
Australian Government, Listing Advice, Pseudomys novaehollandiae
Climate change has been identified as a potential threat to the New Holland Mouse through the potential alteration and further fragmentation of the species habitat.
Brereton et al. (2005) modelled the impact of a number of potential climate change scenarios on the distribution of a range of small mammals; including the New Holland Mouse; and concluded that future climate change could result in a decline of up to 50 in the distribution of the species.
For example; a disturbance event such as a fire within the species habitat may result in increased predation of the species by introduced predators. 9.
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