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Distoechurus pennatus
feathertail possum


By denise krentz

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Diprotodontia
Family: Acrobatidae
Genus: Distoechurus
Species: Distoechurus pennatus

Geographic Range

Feathertail possums can be found in suitable forested habitats, including disturbed forests, throughout New Guinea. (Flannery, 1995)

Biogeographic Regions
australian (Native )

Other Geographic Terms
island endemic

Habitat

Range elevation
1,900 (high) m
( ft)

Feathertail possums are found in areas of disturbed secondary forest, rainforest, scrub forest, and gardens. They also are found in highland rainforest and lower moss forests at altitudes of up to 1,900 meters. (Nowak, 1991)

Habitat Regions
tropical ; terrestrial

Terrestrial Biomes
forest ; rainforest

Other Habitat Features
agricultural

Physical Description

Range mass
50 to 53 g
(1.76 to 1.87 oz)

Range length
100 to 120 mm
(3.94 to 4.72 in)

The head and body length is 100 to 120mm and the tail length is 123 to 55mm. Adult males weigh about 53 grams, and adult females weigh about 50 grams. Body coloration is dull buff, light brown, to slightly gray in color. The head is streaked with black and white bands that extend from the muzzle to the top of the head. There is a conspicuous black patch just below each ear. The basal part of the tail is well furred, and the remainder is nearly naked. A fringe of stiff hairs outlines the tail in a feather-like pattern hence the name feather-tailed possum. The coat is a soft, thick texture. The claws are sharp and curved and the terminal pads of the digits are not expanded. The eyes are large and the ears are small and naked. The tip of the tail is prehensile. Females have one medially placed teat, and a pouch that opens anteriorly. (Flannery, 1995; Nowak, 1991; Woolley and Allison, 1982)

Acrobatids differ from other possums in having six pads on their feet instead of five (an adaptation to enhance grip when climbing) and a tail with rows of long stiff hairs along each side, forming a feather-like structure. This is thought of being an adaptation to gliding. Distoechurus pennatus does not have a membrane and cannot glide. (Flannery, 1995; Nowak, 1991; Woolley and Allison, 1982)

The tongue is 21 mm long. The dorsal surface is covered with a mat of backwardly pointing papillae that is thought to be used as to tool to retrieve nectar and pollen from flowers. (Nowak, 1991)

Other Physical Features
endothermic ; homoiothermic; bilateral symmetry

Sexual Dimorphism
female larger

Reproduction

Mating systems in feathertail possums are not well understood. Their close relative, Acrobates pygmaeus, is polygynous. (Springer and et al, 1989; Ward, 1998)

Breeding interval
Feathertail possums can have up to 2 litters per year.

Breeding season
There is a seasonal peak of births in spring.

Range number of offspring
1 to 2

Average number of offspring
1
[External Source: AnAge]

Reproductive research is lacking for feathertail possums but the related species, Acrobates pygmaeus, reaches sexual maturity at 8 months to one year of age and has two litters per year. Litter size is one or two young and is determined by a number of factors, latitude, altitude, ovulation rate, and the number of teats. They nest in tree holes and females are probably polygynous. Breeding can happen at any time of year in the tropics but births have a seasonal peak in spring. (Springer and et al, 1989; Ward, 1998; Woolley and Allison, 1982)

Key Reproductive Features
iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); viviparous

Like other marsupials, feathertail possums gestate and nurse their young until they are weaned. There is little information on other forms of parental investment in feathertail possums. (Low, 1978; Russell, 1982)

Parental Investment
altricial ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female)

Lifespan/Longevity

Range lifespan
Status: captivity

1.5 (high) years

Average lifespan
Status: captivity

1.5 years
[External Source: Max Planck Institute for Demographic Research]

Little is known about the lifespan of feathertail possums. In captivity one lived to 1.5 years. Because they are small possums, it is suggested that they have relatively short generation times. (Collins, 1973; Woolley and Allison, 1982)

Behavior

Feathertail possums are nocturnal and highly arboreal. These possums are solitary most of the year outside of the breeding season, when they associate briefly with a mate and their offspring.

Key Behaviors
arboreal ; scansorial; nocturnal ; sedentary ; solitary

Home Range

Home range size in feathertail possums is unknown.

Communication and Perception

Not much in known about communication in feathertail possums. In general, possums communicate though vocalizations and urine marking. (Perrott, et al., 2000)

Communication Channels
acoustic ; chemical

Other Communication Modes
scent marks

Perception Channels
visual ; acoustic

Food Habits

Feathertail possums specialize in high-energy, high-protein foods such as nectar, pollen, and insects. They also feed on soft fruits or exudates such as gums. Most feeding occurs at night, although nursing mothers are sometimes forced to forage during the day to meet the energy demands of lactation. Feathertail possums have a hindgut that is about 10 cm in length and a small intestine of 25 cm long. (Flannery, 1995; Hume, 1999)

Animal Foods
insects

Plant Foods
seeds, grains, and nuts; fruit; nectar; pollen; flowers; sap or other plant fluids

Predation

Known Predators


Feathertail possums are most vulnerable to predators when they are on the ground. The primary terrestrial predators of small possums in Australia are foxes. They may also be preyed on by arboreal snakes and owls. (Cowan, 2001; Cowan, 2001)

Ecosystem Roles

Feathertail possums are pollinators through their nectar-feeding. They may also disperse seeds when they eat fruits. (Nowak, 1991)

The number of known bacterial, fungal, and viral diseases infecting possums are minimal but researchers are spending time investigating the affects of Leptospira interrogans, a bacterium and Parastrongyloides trichosuri, a nematode, as potential vectors for biological control.

A disease found in possums only is "Wobbly Possum Disease" (WPD). This disease is characterized by docility, incoordination, loss of balance, and wasting. It also has detrimental affects in body tissue and the brain. WPD can be efficiently transmitted by close contact. Many joeys in direct contact with infected possums contract WPD. Infection may be spread in the wild by several mechanisms, including aggressive encounters in which blood is exchanged, contamination of wounds with urine, ingestion of contaminated food, transfer of mites during den-sharing, and other social encounters. WPD has potential as a biological control agent for possums on the basis that it is readily transmitted between individuals in close contact. (Cowan, 2001; Perrott, et al., 2000)

Ecosystem Impact
disperses seeds; pollinates

Commensal/Parasitic Species

Economic Importance for Humans: Positive

The feather-tail possum is an active part of New Guinea’s indigenous people diet. They are hunted at night in the months of June, July, and August.

The Wola people of New Guinea's Highlands use the prized tails of posssums such as the Feather-tailed to create elaborate headress for cerimonies. (Sillitoe, 1988; )

Positive Impacts
food ; body parts are source of valuable material

Economic Importance for Humans: Negative

Feathertail possums can be considered pests when active in urban settings. Control methods like poisons and toxins are sometimes used to reduce problem possums. An emerging problem with these eradication methods is that the materials are being sent throughout the food web affecting many species who will prey upon a possum carcass. More research needs to be done on better methods of control, such as fertility control, traps, and behavior changes. Ferrets are becoming a problem because they are carriers of Bovine Tb which can be transmitted to possums. The transmission of this disease to livestock is of major economic concern in Australia and New Zealand. (Cowan, 2001; Innes and Barker, 1999)

Negative Impacts
causes or carries domestic animal disease ; household pest

Conservation Status

IUCN Red List [Link]
Lower Risk - Least Concern

US Federal List [Link]
No special status

CITES [Link]
No special status

Feathertail possums are common in suitable habitats, though detailed population information is not available. These possums are on the IUCN Red List of Threatened Species and are considered low risk/least concern.

For More Information

Find Distoechurus pennatus information at

Contributors

Tanya Dewey (editor), Animal Diversity Web, University of Michigan Museum of Zoology.

denise krentz (author), University of Wisconsin Stevens Point, Chris Yahnke (editor, instructor), University of Wisconsin Stevens Point.

References

Collins, L. 1973. Monotremes and Marsupials. Washington D. C.: Smithsonian Institute Press.

Cowan, P. 2001. Advances in New Zealand mammalogy 1990-2000: Bushtail possum. Journal of The Royal Society of New Zealand, 31:1: 15-29. Accessed November 29, 2006 at http://animaldiversity.ummz.umich.edu/workspaces/.accounts/item570364710/account_reference_edit_form?reference_ident=1f07da07712653b376aee8b02f0f9a1d.

Flannery, T. 1995. Mammals of New Guinea. Carina, Australia: Reed Books.

Hume, D. 1999. Marsupial Nutrition. New York, New York: Cambridge University Press.

Innes, J., G. Barker. 1999. Ecological consequences of tozin use for mammalian pest control in New Zealand- an overview. New Zealand journal of Ecology, 23:2: 111-127. Accessed November 29, 2006 at http://www.nzes.org.nz/nzje/free_issues/NZJEcol23_2_111.pdf.

Low, B. 1978. Environmental Uncertainty and the Parental Strategies of Marsupials and Placentals. The American Naturalist, 112:983: 197-213. Accessed November 28, 2006 at http://www.jstor.org/view/00030147/di006188/00p01817/12?frame=noframe&userID=8fec23ca@uwsp.edu/01cc99331500501b2f3e7&dpi=3&config=jstor.

Nowak, M. 1991. Walker's mammals of the world, 5 ed. Baltimore, Maryland: The Johns Hopkins University Press.

Perrott, M., C. Wilks, J. Meers. 2000. Routes of transmission of wobbly possum disease. New Zealand Veterinary Journal, 48:1: 3-8. Accessed November 29, 2006 at http://www.ingentaconnect.com/content/nzva/nzvj/2000/00000048/00000001/art00001.

Russell, E. 1982. Parental Investment and Desertion of Young in Marsupials. The American Naturalist, 119:5: 744-748. Accessed November 28, 2006 at http://www.jstor.org/view/00030147/di006234/00p0056f/0?frame=noframe&userID=8fec23ca@uwsp.edu/01cc99331500501b2f3e7&dpi=3&config=jstor.

Sillitoe, P. 1988. From head-dresses to head-messages: the art of self-decoration in the highland of Papua New Guinea. Royal Anthropological Institue of Great Britain and Ireland, 23: 298-318. Accessed December 01, 2006 at http://www.jstor.org/view/00251496/dm993947/99p0128p/0?frame=noframe&userID=8fec23ca@uwsp.edu/01cce4406600501b33bd6&dpi=3&config=jstor.

Springer, S., et al. 1989. Rates of single-copy DNA evolution in phalangeriform marsupials. Department of Biology, University of California, Riverside; and University of Wisconsin Zoological Museum, Madison., 4:331: 331-341. Accessed October 04, 2006 at http://mbe.oxfordjournals.org/cgi/reprint/6/4/331.

Temby, I. 2004. Urban wildlife issues in Australia. International Urban Wildlife Symposium: 27. Accessed November 29, 2006 at http://cals.arizona.edu/pubs/adjunct/snr0704/snr07041d.pdf.

Ward, S. 1998. Number of teats and pre- and post-natal little sizes in small diprotodont marsupials. Journal of Mammology, 79:3: 999-1008. Accessed November 29, 2006 at http://www.jstor.org/view/00222372/ap050320/05a00320/0?frame=noframe&userID=8fec23ca@uwsp.edu/01cc99332400501b25dd3&dpi=3&config=jstor.

Woolley, P., A. Allison. 1982.
Observations on the feeding and reproductive status of captive feather-tailed possums, Distoechurus pennatus (Marsupialia: Burramyidae).
. Australian Mammalogy, 5: 285-287.

Ziegler, A. 1977. The Biology of Marsupials,Evolution of New Guinea’s marsupial fauna in response to. Baltimore: University Park Press.

To cite this page: krentz, d. 2007. "Distoechurus pennatus" (On-line), Animal Diversity Web. Accessed February 12, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Distoechurus_pennatus.html

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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