Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is mainly nocturnal, arboreal and nests with tree hollows (Bradley et al. 2008). It occupies dense, mature woodlands containing Rock Sheoak (Allocasuarina huegeliana) and hollow-forming Wandoo (Eucalyptus wandoo). Females have up to 13 young in a litter, but only eight are raised (Bradley et al. 2008).

Systems
  • Terrestrial
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Life History and Behavior

Life Expectancy

Lifespan, longevity, and ageing

Maximum longevity: 4.7 years (captivity) Observations: One female was at least 4.7 years old when it escaped to the wild (Richard Weigl 2005).
Creative Commons Attribution 3.0 (CC BY 3.0)

© Joao Pedro de Magalhaes

Source: AnAge

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2008

Assessor/s
Friend, T.

Reviewer/s
Lamoreux, J. & Hilton-Taylor, C. (Global Mammal Assessment Team)

Contributor/s

Justification
Listed as Near Threatened because the population of this species is probably less than 10,000 mature individuals and it might be decreasing, but not at a rate of 10% over 10 years, thus it is close to qualifying as Vulnerable under criterion C.

History
  • 1996
    Endangered
  • 1994
    Endangered
    (Groombridge 1994)
  • 1990
    Indeterminate
    (IUCN 1990)
  • 1988
    Indeterminate
    (IUCN Conservation Monitoring Centre 1988)
  • 1986
    Indeterminate
    (IUCN Conservation Monitoring Centre 1986)
  • 1982
    Indeterminate
    (Thornback and Jenkins 1982)
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
Populations fluctuate with rainfall. Like several other dasyurid species, males die-off after mating, but females are capable of breeding for two or even three seasons (Bradley et al. 2008). There are no demonstrated population declines currently, but there were large declines historically. Red-tailed Phascogales are not found at high densities and there are probably less than 10,000 mature individuals overall.

Population Trend
Decreasing
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
The historical decline of Red-tailed Phascogale was probably due to forest clearance and fragmentation, changed fire regimes (whereby frequent fire eliminated nest sites), and the presence of introduced predators. The species now occurs in a number of protected areas that are secure from habitat destruction and people in the region are very careful with fire, so there is no longer frequent burning. Populations and habitat are still fragmented.

The effects of cats and foxes on populations are not fully understood. There is no evidence that fox control has helped this largely arboreal species (A. Burbidge pers. comm.). The current range of the species, however, seems to be associated with the presence of Gastrolobium and Oxylobium, which produce monosodium fluoracetate ('1080' poison), which is lethal to foxes (Bradley et al. 2008).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
The Red-tailed Phascogale is listed as a threatened species under Australian law. It is currently found at a total of 40-50 sites, many of which are within protected areas, with fairly low threat. There is a need to study the effects of predator control on the species and to secure and establish further populations. Close monitoring of the Red-tailed Phascogale is important in order to detect and react early to any population declines.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Red-tailed phascogale

The red-tailed phascogale (Phascogale calura), also known as the red-tailed wambenger, is a small carnivorous marsupial found in central and western Australia. It is closely related to the brush-tailed phascogale (Phascogale tapoatafa), but is smaller and browner.

Taxonomy[edit]

The red-tailed phascogale is one of only two members of the phascogale genus, the other being the brush-tailed phascogale (P. tapoatafa). The species was described in 1844 by naturalist and artist John Gould. Its scientific name means "beautiful-tailed pouched-weasel".[3]

Description[edit]

Red-tailed phascogale showing characteristic tail.

The red-tailed phascogale is smaller and browner than its close relative the brush-tailed phascogale. As in the brush-tailed phascogale, male red-tailed phascogales die following their first mating as a result of stress-related diseases.[4] Males rarely live past 11.5 months, although females can live to three years old. Captive males can also survive up to three years.[3] An arboreal species, the red-tailed phascogale has a varied diet, and can feed on insects and spiders, but also small birds and small mammals, notably the house mouse (Mus musculus), which has become ubiquitous in the landscape since its introduction by Europeans; it does not drink as its water is metabolised through its food.[3]

Distribution and habitat[edit]

The red-tailed phascogale was formerly widespread throughout central and western Australia but is now restricted to the southern Western Australian wheatbelt, and is classified as near threatened by the IUCN Red List and endangered by the Australian EPBC Act. It is found in dense and tall climax vegetation, and appears to prefer those containing the Wandoo (Eucalyptus wandoo) and the Rock Sheoak (Allocasuarina huegeliana), as it has developed a resistance to the fluoroacetate the plants produce that is lethal to livestock.[3] Most native animals have a resistance to this fluoracetate, but introduced species, like the red fox (Vulpes vulpes), do not, so it has been suggested that the red-tailed phascogale's survival in these areas could be attributed to this chemical.[3]

References[edit]

  1. ^ Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 31–32. OCLC 62265494. ISBN 0-801-88221-4. 
  2. ^ Friend, T. (2008). Phascogale calura. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 28 December 2008. Database entry includes justification for why this species is listed as near threatened
  3. ^ a b c d e Bradley, A. J. (1995), "Red-tailed Phascogale", in Strahan, Ronald, The Mammals of Australia, Reed Books, pp. 102–103, ISBN 0-7301-0484-2 
  4. ^ Menkhorst, Peter; Knight, Frank (2001), A Field Guide to the Mammals of Australia, Oxford University Press, p. 50, ISBN 0-19-550870-X 
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!