Djoongari, Alice Springs mouse, Gould's mouse, Shark bay mouse, Djoongari
Gould's mouse (Pseudomys gouldii ), also known as the Shark Bay mouse and djoongari in the Pintupi and Luritja languages, is a species of rodent in the murid family. Once ranging throughout Australia from Western Australia to New South Wales, its range has since been reduced to five islands off the coast of Western Australia.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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AltricialAltricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
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BurrowingA burrow is a hole or tunnel excavated into the ground by an animal to create a space suitable for habitation, temporary refuge, or as a byproduct ...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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starts withThe Shark Bay mouse is a long-haired, robust rodent, with the nickname ‘shaggy mouse’, due to its shaggy fur, which is pale yellow-fawn and gray on its back, giving it a grizzled look, fading into buff on its sides and white below. Its tail is slightly longer than its head and body and is gray on top and white below, and on the tip is a dark tuft of hair.
The Shark Bay mouse is currently found only in Western Australia on Bernier Island in the Shark Bay area, and two translocated populations on North West Island and Faure Island. It lives mainly in sandy areas such as coastal dunes, sheltered by coastal daisy and beach spinifex, where there are abundant flowers, leaves, spiders and insects to eat. It is sometimes also found further inland among the spinifex and wattle heath.
Shark Bay mice are nocturnal and solitary. Apart from during the breeding season, it does not appear to make use of burrows as often as other native mice species, but instead builds runways and tunnels amongst vegetation, to use as daytime refuges. Some mice have been seen using the hollows in mangrove trees for daytime refuges, as well as sites among rocks.
Shark Bay mice are herbivores and flowers and green vegetation are among their favorite food. They also eat fungi, spiders and insects.
Not much is known about the mating behavior of Shark Bay mice, and what we do know is due to behavior observations of captive animals. Mating on Bernier Island mostly takes place from May to November, with gestation lasting around 28 days. In captivity, up to five in a litter have been recorded, although three is considered to be more common. Offspring are born without. Their eyes remain closed for four more days. They are weaned by the time they are four weeks old and they reach their full adult size at about 100 days.
The major threats to this species are unknown. Several factors may be responsible for their disappearance from the mainland, including predation by foxes and feral cats, habitat changes (soil compaction, grazing and vegetation trampling) due to introduced hooved herbivores; and the competition of introduced pests such as rabbits. Altered fire regimes are also a possible reason for their decline. As this mouse builds its tunnels in vegetation rather than constructing substantial burrow systems underground, it is especially exposed and vulnerable, more than many other rodents.
According to the IUCN Red List, the total population size of the Shark Bay mouse is less than 2,000 individuals. This includes a few hundred individuals on Bernier Island, under 200 mice on Faure Island, and under 1,000 mice on North West Island. Overall, currently Shark Bay mice are classified as Vulnerable (VU) but their numbers today are increasing.
Being herbivores, Shark Bay mice may have a role in the structuring of plant communities. They may also affect predator populations, as items of prey.
