dcsimg

Lifespan, longevity, and ageing

provided by AnAge articles
Maximum longevity: 4.4 years (captivity) Observations: In the wild, these animals tend to live less than one year, with a record of 2.4 years (Taylor and Calaby 1988). One captive specimen lived 4.4 years (Richard Weigl 2005).
license
cc-by-3.0
copyright
Joao Pedro de Magalhaes
editor
de Magalhaes, J. P.
partner site
AnAge articles

Behavior

provided by Animal Diversity Web

Perception Channels: tactile ; chemical

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Conservation Status

provided by Animal Diversity Web

Rattus lutreolus is common throughout its limited range. Most of its original habitat has now been farmed and made unsuitable for this species (Strahan 1995).

IUCN Red List of Threatened Species: least concern

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Benefits

provided by Animal Diversity Web

The swamp rat was hunted by Aborigines prior to European settlement and provided a significant source of meat;however, this hunting pressure no longer exists (Strahan 1995).

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Trophic Strategy

provided by Animal Diversity Web

Stems and leaves are the main foods eaten by R. lutreolus. In spring and early summer, their diet expands to include seeds, fleshy fruits, and insects. Roots and underground fungi are also consumed by R. lutreolus (Cheal 1987, Norton 1987).

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Distribution

provided by Animal Diversity Web

This species is common over a wide area of south-eastern Australia. One subspecies is also found on the north-eastern cosat (Strahan 1995).

Biogeographic Regions: australian (Native )

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Habitat

provided by Animal Diversity Web

Rattus lutreolus prefers poorly drained habitats, heathland, and sedges. This species has also been found on dry ridges in open forest. Density of vegetation seems to be the most important requirement of this species. This is most likely a result of selection for evasion of avian predators, or perhaps because food is more abundant in dense habitats. Habitat selection by females is most likey related to the amount of energy required for reproduction. Members of this species can survive without free water (Haering and Fox 1995, Monamy 1995, Strahan 1995).

Terrestrial Biomes: savanna or grassland ; forest

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Life Expectancy

provided by Animal Diversity Web

Typical lifespan
Status: captivity:
1 (high) years.

Range lifespan
Status: wild:
2.4 (high) years.

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Morphology

provided by Animal Diversity Web

Head and body length of this species ranges from 122mm to 197mm and the tail length is an additional 56-147mm. Rattus lutreolus is dark gray or gray brown on its dorsal surfaces and cream to brown on its ventral surface. The fur on the upper half of the body is golden-tipped. Its ears are small and nearly concealed by hair. The tail is dark gray, scaly and sparsely haired (Strahan 1995).

Other Physical Features: endothermic ; bilateral symmetry

Average mass: 115 g.

Average basal metabolic rate: 0.353 W.

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Reproduction

provided by Animal Diversity Web

The breeding season is generally from early spring to autumn, but breeding can occur throughout the year. The gestation period is three weeks and the female gives birth to three to five young, each weighing approximately 5 grams. A female may produce several litters in a year and a three month old female from an early spring litter may be reproductively active that same year. Females are usually aggressive toward males except during mating (Monamy 1995, Strahan 1995).

Key Reproductive Features: gonochoric/gonochoristic/dioecious (sexes separate); sexual

Average birth mass: 4.87 g.

Average gestation period: 27 days.

Average number of offspring: 5.

Average age at sexual or reproductive maturity (female)
Sex: female:
79 days.

license
cc-by-nc-sa-3.0
copyright
The Regents of the University of Michigan and its licensors
bibliographic citation
Felcher, C. 1999. "Rattus lutreolus" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rattus_lutreolus.html
author
Cindy Felcher, University of Michigan-Ann Arbor
original
visit source
partner site
Animal Diversity Web

Australian swamp rat

provided by wikipedia EN

 src=
An illustration of the Australian swamp rat published in John Gould's The Mammals of Australia

The Australian swamp rat (Rattus lutreolus), also known as the eastern swamp rat,[2] is a species of rat native to the coasts of southern and eastern Australia.

Description

The Australian swamp rat grows to have a body length of approximately 160 millimetres (6 in) with a tail length of approximately 110 mm (4.3 in) and a mass of about 120 grams (4 oz). It has a stocky build with black-brown fur and black feet.[3] Its ventral surface is cream to brown color and it has small ears nearly concealed by hair. The tail is dark grey, scaly and sparsely haired.[4]

Ecology

Range and habitat

The Swamp Rat is found near the coast of south and eastern Australia. It occurs in lowland country from Fraser Island down the coast of New South Wales and Victoria to the Mount Lofty Ranges in South Australia. A subspecies velutinus can be found in Tasmania, and another subspecies lacus lives in isolated patches of high altitude rainforest near Atherton, Queensland.

The preferred habitat of the swamp rat is thick vegetation along watercourses and in swamps. Dense vegetation of islands above the high water mark is also suitable.[3] They can also live in area of coastal heath, dune scrub, grasslands and sedgelands. The rats will form tunnels through the vegetation through which they can move. The species tends to choose the habitat based on density of vegetation in the area.[5] Areas prone to fire tend not to be recolonised.[6] The swamp rat can be seen at places like the Healesville Sanctuary, where they live in the grounds.

Diet

The diet is vegetarian;[6] consisting of reeds, seeds and swamp grass stems.[3] During the summer months, the species will increase its intake of insects as well as fungi; however, during spring months the rats switch to eating an increased amount of seeds due to their abundance and possible nutritional value in breeding season.[7]

Behaviour

Feeding

Behaviour is partly nocturnal and diurnal so it is active during the day and at night. It is thought that the species does not collect the sufficient amount of food throughout the night and must also collect vegetation during the day.[8]

Reproduction and Predation

The rats reach sexual maturity around August and start to breed come October.[8] The species has a litter size ranging from one to eleven on average with a gestation period lasting around 23 to 25 days.[7] Olfactory senses are used to smell certain species' odours, allowing them to detect predators.[9]

See also

References

  1. ^ Burnett, S.; Menkhorst, P.; Ellis, M.; Denny, M. (2017) [errata version of 2016 assessment]. "Rattus lutreolus". IUCN Red List of Threatened Species. 2016: e.T19343A115147713. doi:10.2305/IUCN.UK.2016-3.RLTS.T19343A22440810.en. Retrieved 9 August 2021.
  2. ^ "Australian Swamp Rat". State of Victoria (Department of Education). 2015. Retrieved 31 December 2015.
  3. ^ a b c "Swamp Rat - Rattus lutreolus". Queensland Museum. 2015. Retrieved 31 December 2015.
  4. ^ Cindy Felcher (1999). "Rattus lutreolus - Australian swamp rat". Animal Diversity Web. Retrieved 31 December 2015.
  5. ^ Fox, Barry J., and Vaughan Monamy. "A Review of Habitat Selection by the Swamp Rat, Rattus Lutreolus (Rodentia: Muridae)." Austral Ecology 32.8 (2007): 837-49. Web.
  6. ^ a b "Rattus lutreolus (J.E. Gray, 1841) - Swamp Rat". Atlas of living Australia. Global Biodiversity Information Facility. 2015. Retrieved 31 December 2015.
  7. ^ a b Taylor, J. Mary, and John H. Calaby. "Rattus Lutreolus." Mammalian Species 299 (1988): 1. Web.
  8. ^ a b Kearney, Nicole, Kathrine Handasyde, Simon Ward, and Michael Kearney. "Fine-scale Microhabitat Selection for Dense Vegetation in a Heathland Rodent, Rattus Lutreolus: Insights from Intraspecific and Temporal Patterns." Austral Ecology 32.3 (2007): 315-25. Web.
  9. ^ Mcevoy, Joanne, David L. Sinn, and Erik Wapstra. "Know Thy Enemy: Behavioural Response of a Native Mammal (Rattus Lutreolus Velutinus) to Predators of Different Coexistence Histories." Austral Ecology 33.7 (2008): 922-31. Web.
 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Australian swamp rat: Brief Summary

provided by wikipedia EN
 src= An illustration of the Australian swamp rat published in John Gould's The Mammals of Australia

The Australian swamp rat (Rattus lutreolus), also known as the eastern swamp rat, is a species of rat native to the coasts of southern and eastern Australia.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN