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Benefits ( englanti )

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Aboriginal peoples of the area used to capture this species. They utilized the animal both for its fur and as a food source. Rock ringtail possums are also important in education and research.

Positive Impacts: food ; body parts are source of valuable material; research and education

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Benefits ( englanti )

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Petropseudes dahli has likely been affected by human induced habitat fragmentation and its numbers have decreased significantly. The species is listed as a priority species in western Australia and management efforts may affect forestry management and development practice.

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Conservation Status ( englanti )

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Petropseudes dahli is listed as priority species in Western Australia.

US Federal List: no special status

CITES: no special status

State of Michigan List: no special status

IUCN Red List of Threatened Species: least concern

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Associations ( englanti )

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In order to avoid predations, rock ringtail possums spend a large amount of time participating in sentinel behavior. They will perch on branches or ledges and scan the area for danger. Rock ringtail possums will flee from predators to their more familiar rocky habitats where they will hide in rock crevices. When confronted they may make a low growl. Rock ringtail possums also beat their tails vigorously against tree branches, causing the entire tree to shake in order to attempt to deter predators and to warn others. Potential predators of rock ringtail possums include dingos, owls, quolls, feral cats and dogs, olive pythons, Oenpelli rock pythons, and humans.

Known Predators:

  • dingos (Canis lupus dingo)
  • Oenpelli rock pythons (Morelia oenpelliensis)
  • olive pythons (Liasis olivaceous)
  • quolls (Dasyurus)
  • owls (Strigiformes)
  • humans (Homo sapiens)
  • feral cats (Felis silvestris)
  • domestic dogs (Canis lupus familiaris)
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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Morphology ( englanti )

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Rock ringtail possums are small, stocky possums, similar in size to a small rabbit. The pelage is grey to reddish-grey on the back and a lighter, cream color on the underside. There is a dark stripe down the middle of their backs. The coat is long and thick. The tail is unique in that it is furred only half-way down, it lacks scales on the unfurred portion of the tail, unlike some of their close relatives. Rock ringtail possums have small, rounded ears. They have white hair in patches both above and below the eyes and underneath the ears. Rock ringtail possums live in rocky areas and have developed many adaptations to a more terrestrial lifestyle than many of their relatives. They have shorter legs, claws, and tails. As in other possums, the tail is prehensile.

Range mass: 1280 to 2000 g.

Range length: 334 to 383 mm.

Other Physical Features: endothermic ; homoiothermic; bilateral symmetry

Sexual Dimorphism: female larger

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Life Expectancy ( englanti )

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There is no information on longevity of rock ringtail possums. A closely related species, Leadbeater's possums (Gymnobelideus leadbeateri), live more than 10 years in captivity. In the wild this same species has a maximum longevity of 5 years.

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Behavior ( englanti )

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Rock ringtail possums use chemical signals to communicate most extensively. Adult possums have an important scent gland on the chest region and males have a 2 cm diameter paracloacal gland. They maintain scent posts that are visited commonly. These scent posts develop a thick, lacquer-like coating. Rock ringtail possums use both urine and feces to mark these areas. These possums are also thought to mark tree branches using their paracloacal gland. Rock ringtail possums have been observed striking their tails against rocks, possibly as a form of communication. The species also is able to make grunts and growls that serve as auditory communication.

Communication Channels: visual ; tactile ; acoustic ; chemical

Other Communication Modes: scent marks

Perception Channels: visual ; tactile ; acoustic ; chemical

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Nimetön ( englanti )

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Petropseudes dahli mothers may actually allow her young to move from branch to branch by using her body as a bridge. This has never been seen in another possum. This species also exhibits the uncommon habit of embracing their young, which is only seen in apes. They are also the only marsupial ever seen utilizing termite mounds.

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Habitat ( englanti )

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Rock ringtail possums live in rocky, sandstone outcrops where they are sheltered during the day. At night they move out of their sheltered rock crevices to feed in the trees within the area, often traveling no further than 10 meters from their dens. These rocky areas usually are surrounded by flatter, lowland areas. The rocky encampments have increased water holding potential and are sometimes flooded in areas.

Habitat Regions: tropical ; terrestrial

Terrestrial Biomes: scrub forest

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Distribution ( englanti )

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Rock ringtail possums are found in rocky terrain, usually sandstone outcroppings, in a small portion of northern Australia. The species has a wide distribution in northern Australia. Most commonly the species is found in the Northern Territory, Kimberley, Katherine, and Queensland.

Biogeographic Regions: australian (Native )

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Trophic Strategy ( englanti )

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Rock ringtail possums feed in trees, they commonly feed within 100 meters of their rocky outcrop homes. This species eats leaves, fruit, blossoms, flowers, and occasionally feed on termites. THe blossoms of Darwin woollybutt, Eucalyptus miniata, and Darwin stringybark are all eaten by rock ringtail possums. Fruit is eaten from the following species: Zyziphus oenoplia, Vitex glabrata, Terminalia fernandiana, and Owenia vernicosa. Leaves eaten include: Flagelleria indica, Pouteria sericea, and vine reedcane.

Animal Foods: insects

Plant Foods: leaves; fruit; flowers

Primary Diet: herbivore (Folivore , Frugivore )

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Associations ( englanti )

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Rock ringtail possums may disperse seeds through their fruit eating habits. They may also influence termite populations and act as prey for regional predators.

Ecosystem Impact: disperses seeds

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Reproduction ( englanti )

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Petropseudes dahli is one of few obligate monogamous marsupial species. Females live in their home range with one male. Scent posts are used commonly by the species to define home range and to mark territories. Family groups are tightly knit and consist of the mother, father, and one or occasionally two offspring. Young help with raising their younger siblings.

Mating System: monogamous ; cooperative breeder

There does not appear to be a restricted breeding season. There is normally one offspring, with occasionally two. No gestation period information is available for the species but close relatives have gestation periods from 16 to 30 days. Females have a large pouch with two teats where the new offspring spends its first five weeks. The current year's offspring are often found on the back of their parent's or nearby after leaving the safety of their mothers pouch. Previous offspring will commonly stay with the family unit to assist in rearing the next offspring.

Breeding interval: Rock ringtail possums breed twice yearly.

Breeding season: There does not appear to be a well defined breeding season. Offspring have been seen from March to September.

Range number of offspring: 1 to 2.

Average weaning age: 5 weeks.

Average time to independence: 7 months.

Average age at sexual or reproductive maturity (female): 7 months.

Average age at sexual or reproductive maturity (male): 7 months.

Key Reproductive Features: iteroparous ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous

There is an extensive amount of parental care in this species. Rock ringtail possums live in tight knit family groups. Care of young is undertaken by both parents and young of the previous breeding effort. Care of young is divided nearly equally between the two parents after weaning. Prior to weaning the offspring spends its time in its mothers pouch receiving nourishment from her milk. After exiting the pouch, both parents spend time grooming, resting with, and greeting their young. Mother and father both also practice several protective behaviors. Both parents spend time watching for predators, beating their tails, vocalizing, and keeping young relatively close. Females nursing young in their pouches can become defensive, on occassion even towards their mate. This behavior ranges from swinging of limbs towards counterpart or making growls or grunts. Mothers may also show some slight aggression towards subadults if they interfere with her activities or young.

Parental Investment: altricial ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Male, Female); pre-independence (Protecting: Male, Female); post-independence association with parents; extended period of juvenile learning

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Stroede, R. 2007. "Petropseudes dahli" (On-line), Animal Diversity Web. Accessed April 27, 2013 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html
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Uta rupestre ( valencia )

tarjonnut wikipedia CA

L'uta rupestre (Petropseudes dahli) és una espècie de pòssum australià. Viu en escarpaments rocosos de Kimberley, Arnhem Land i el golf de Carpentària, al llarg d'Austràlia occidental i el Territori del Nord i travessant tot just la frontera amb Queensland. També viu a Groote Eylandt.[1] És l'única espècie del gènere Petropseudes, però forma part del grup que també inclou l'uta comú (Pseudocheirus peregrinus).[2] Aquest tàxon fou anomenat en honor del naturalista noruec Knut Dahl.[3]

Referències

 src= A Wikimedia Commons hi ha contingut multimèdia relatiu a: Uta rupestre Modifica l'enllaç a Wikidata
  1. Menkhorst, Peter. A Field Guide to the Mammals of Australia. Oxford University Press, 2001, p. 96.
  2. Groves, Colin. Wilson, D. E.; Reeder, D. M. (editors). Mammal Species of the World (en anglès). 3a ed.. Johns Hopkins University Press, 2005, pàg. 51. ISBN 0-801-88221-4. (anglès)
  3. Beolens, B.; Watkins, M.; Grayson, M. The Eponym Dictionary of Mammals (en anglès). The Johns Hopkins University Press, 2009, p. 96. ISBN 978-0801893049.


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Uta rupestre: Brief Summary ( valencia )

tarjonnut wikipedia CA

L'uta rupestre (Petropseudes dahli) és una espècie de pòssum australià. Viu en escarpaments rocosos de Kimberley, Arnhem Land i el golf de Carpentària, al llarg d'Austràlia occidental i el Territori del Nord i travessant tot just la frontera amb Queensland. També viu a Groote Eylandt. És l'única espècie del gènere Petropseudes, però forma part del grup que també inclou l'uta comú (Pseudocheirus peregrinus). Aquest tàxon fou anomenat en honor del naturalista noruec Knut Dahl.

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Felsen-Ringbeutler ( saksa )

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 src=
Verbreitungskarte des Felsen-Ringbeutlers

Der Felsen-Ringbeutler (Petropseudes dahli) ist eine Beutelsäugerart aus der Familie der Ringbeutler (Pseudocheiridae). Er ist der einzige Vertreter seiner Familie, der vorrangig auf dem Boden lebt.

Felsen-Ringbeutler haben ein langes, weiches Fell, das an der Oberseite rötlich grau und an der Unterseite hellgrau gefärbt ist. Der eher kurze Schwanz kann als Greifschwanz verwendet werden, seine Spitze und der hintere Teil der Unterseite sind unbehaart. Im Gegensatz zu den anderen Ringbeutlern sind die ersten zwei Finger diese Tiere nicht opponierbar. Felsen-Ringbeutler erreichen eine Kopfrumpflänge von 33 bis 45 Zentimetern, der Schwanz wird 20 bis 28 Zentimeter lang, und ihr Gewicht beträgt 1,3 bis 2 Kilogramm.

Diese Tiere leben im nördlichen Australien, ihr Verbreitungsgebiet umfasst das nordöstliche Western Australia, das nördliche Northern Territory und das nordwestliche Queensland. Ihr Lebensraum sind felsige Regionen sowie Savannen. Sie sind nachtaktiv und schlafen tagsüber in Felsspalten oder Erdhöhlen. Vermutlich bauen sie keine Nester. In der Nacht begeben sie sich auf Nahrungssuche, wobei sie oft auf Bäume klettern, um Blätter und Früchte zu sich zu nehmen. Sie leben meist in Paaren oder in kleineren Gruppen zusammen.

Über die Fortpflanzung ist wenig bekannt. Die Weibchen haben einen nach vorn geöffneten Beutel mit zwei Zitzen, die Paarung kann das ganze Jahr über erfolgen und meist kommt ein einzelnes Jungtier zur Welt.

Literatur

  • Ronald M. Nowak: Walker’s Mammals of the World. Johns Hopkins University Press, 1999 ISBN 0-8018-5789-9

Weblinks

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Felsen-Ringbeutler: Brief Summary ( saksa )

tarjonnut wikipedia DE
 src= Verbreitungskarte des Felsen-Ringbeutlers

Der Felsen-Ringbeutler (Petropseudes dahli) ist eine Beutelsäugerart aus der Familie der Ringbeutler (Pseudocheiridae). Er ist der einzige Vertreter seiner Familie, der vorrangig auf dem Boden lebt.

Felsen-Ringbeutler haben ein langes, weiches Fell, das an der Oberseite rötlich grau und an der Unterseite hellgrau gefärbt ist. Der eher kurze Schwanz kann als Greifschwanz verwendet werden, seine Spitze und der hintere Teil der Unterseite sind unbehaart. Im Gegensatz zu den anderen Ringbeutlern sind die ersten zwei Finger diese Tiere nicht opponierbar. Felsen-Ringbeutler erreichen eine Kopfrumpflänge von 33 bis 45 Zentimetern, der Schwanz wird 20 bis 28 Zentimeter lang, und ihr Gewicht beträgt 1,3 bis 2 Kilogramm.

Diese Tiere leben im nördlichen Australien, ihr Verbreitungsgebiet umfasst das nordöstliche Western Australia, das nördliche Northern Territory und das nordwestliche Queensland. Ihr Lebensraum sind felsige Regionen sowie Savannen. Sie sind nachtaktiv und schlafen tagsüber in Felsspalten oder Erdhöhlen. Vermutlich bauen sie keine Nester. In der Nacht begeben sie sich auf Nahrungssuche, wobei sie oft auf Bäume klettern, um Blätter und Früchte zu sich zu nehmen. Sie leben meist in Paaren oder in kleineren Gruppen zusammen.

Über die Fortpflanzung ist wenig bekannt. Die Weibchen haben einen nach vorn geöffneten Beutel mit zwei Zitzen, die Paarung kann das ganze Jahr über erfolgen und meist kommt ein einzelnes Jungtier zur Welt.

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Rock-haunting ringtail possum ( englanti )

tarjonnut wikipedia EN

The rock-haunting ringtail possum (Petropseudes dahli), also known as the rock ringtail possum, is a species of Australian possum. It is found in rocky escarpments in the Kimberley, Arnhem Land and Gulf of Carpentaria across Western Australia and Northern Territory and just passing the Queensland border. It is also found on Groote Eylandt.[3] It is the only species in the genus Petropseudes, but is part of the group including the common ringtail possum (Pseudocheirus peregrinus).[1]

The rock-haunting ringtail possum has one of the shortest tails of all ringtail possums, and at its end it is hairless and scaly. It lives in small groups and is mainly herbivorous. It has a stocky build and is mostly grey in colour.[3]

Description

The rock-haunting ringtail possum is almost the size of a small rabbit. It is grey to reddish-grey in colour on the back, while its underside is a light cream colour. It has white hair patches underneath its small, round ears and both above and below the eyes.[4] A mid-dorsal stripe runs from the crown of the head to the middle of the back. Like other possums, it has a prehensile tail, adapted for grasping especially by wrapping around. However, the tail is unique in its appearance compared to that of other possums as it is covered with fur only halfway down. Males are 33.4 to 37.5 cm long while females are generally bigger and range from 34.9 to 38.3 cm in length and weigh between 1,280 and 2,000 grams. Another uncommon feature in the appearance of this species is that it has vertical pupils.[5]

Ecology

The rock-haunting ringtail possum disperses seeds through its fruit eating habits. It also influences termite populations and acts as prey for regional predators.

The rock-haunting ringtail possum has been affected by human induced habitat fragmentation and hence, its numbers have decreased significantly. The species is listed as a priority species in Western Australia.[6]

Habitat

The rock-haunting ringtail possum lives exclusively in rocky outcrops and prefers areas with large boulders and deeply fissured rock. It uses the crevices to hide by just sticking its head into the crevice with the body exposed. It is strictly nocturnal; it only moves out of its sheltered rock crevices to climbing trees to feed at night. It does not make a nest and has been observed occasionally to be sleeping in well protected rock ledges during the day. This suggests a high level of adaptation to a terrestrial existence. Indicators of a reduction in arboreal adaptation are shorter legs, shorter claws, shorter tail and a slightly longer snout.[5]

Diet

The rock-haunting ringtail possum eats fruits, flowers and leaves of a variety of trees found near its habitat and occasionally feeds on termites. It usually stays close to the rocks while feeding but has been found as far as 100m from the nearest outcrop. Most common of the blossoms it eats are of Darwin Woollybutt (Eucalyptus miniata) and Darwin Stringybark (Eucalyptus tetrodonta). Its major fruit intake is from Zyziphus oenoplia, Vitex glabrata, Billy Goat Plum (Terminalia ferdinandiana), and Owenia vernicosa. Leaves eaten include Flagelleria indica, Pouteria sericea and Vine Reedcane.[5]

Known predators

Some known predators of the rock-haunting ringtail possum are the Dingo (Canis lupus dingo), the Oenpelli Python (Morelia oenpelliensis), the Olive Python (Liasis olivaceous), quolls (Dasyurus spp.), owls (Strigiformes), feral cats (Felis catus), red foxes (Vulpes vulpes), domestic dogs (Canis lupus familiaris) and humans (Homo sapiens).[4] The rock-haunting ringtail possum spends a large amount of time participating in sentinel behaviour to avoid predators. It perches on branches or ledges and scans the area for danger. In an attempt to deter predators and to warn others, this possum beats its tail against tree branches vigorously causing the entire tree to shake.[7]

Lifestyle

Of all the Australian possums, the rock-haunting ringtail possum lives in the most tightly knit family groups. Adults and their young will stay within 2–3 metres of each other throughout the night.[5] The family groups are generally made up of about 4 individuals, although group sizes of 2 to 10 individuals have been reported. The possum spends most of its time sheltered within rock piles or crevices.[7] After dark it moves from its rocky home into the nearby trees where it feeds. This possum is secretive, difficult to trap and avoids contact and confrontation as far as possible. It is primarily terrestrial, moving into the trees only to feed. This distinguishes it from its close, mostly arboreal relatives.[6] Its eye-shine is very bright in a spotlight but unlike most possums, it doesn't freeze when caught in a beam of light. Instead, it retreats to its rock shelter or crevices where it hides with its head in the crevice but its body exposed.[5]

Reproduction

There appears to be no particular season for breeding. However, females with a large young in the pouch and a young on the back have been seen in March, July, August and September. Although the gestation period information is not available for the species, it is known that close relatives have gestation periods from 16 to 30 days. The new offspring spends its first five weeks in the female's large pouch which has two teats. The parents usually carry the new offspring on their back after they have left the mother's pouch. Caring for the young is divided nearly equally among the parents. The parents are assisted in raising the offspring by the previous offspring who commonly stay with the family unit.[5] The parents practice protective behaviours such as spend time watching for predators, tail beating, and vocalizing and marshaling the young to keep them relatively close.[7]

Home range and obligate monogamy

Both sexes have about the same home range size. Average home range is 0.9 hectares, with home ranges ranging in size from 0.5 to 1.2 hectares. The average density in these home ranges is 0.4 possums per hectare.[5] Females live with one male in their home range, which are commonly marked by scent posts. To scent-mark, the rock-haunting ringtail possum rubs or presses their cloacal-caudal region or chest against the surface. While the possum also marked rock ledges and trees within its home ranges, scent marking was most vigorous around den sites.[7]

The rock-haunting ringtail possum is one of few obligate monogamous marsupial species. A consistent characteristic of obligate monogamy displayed by this species is the existence of cohesive and persistent pair bonds with mutual or asymmetrical attraction between adults.[8] Both sexes of this species maintain strong pair bonds, as shown by the wide array of maintenance behaviours, which is a measure of bond 'strength'. However, males maintained the pair bond at a higher rate than females. Both sexes shared the decision-making process in terms of changing group activity.[7]

Presence of long-lasting bonds between parents and young seen in the family of this species is another attribute of obligate monogamy. Both sexes of the rock-haunting ringtail possum showed substantial long-term care of offspring. An unusual interaction observed between parents and young were the embrace by adult males and the bridge formation. Both sexes embrace young, whereas only females engage in bridge formation.[7] The mother allows her young to move from branch to branch by using her body as a bridge. This has never been seen in another possum.[9] Embracing is a way for the adults to know the stage of maturation of the offspring.[10] A third feature of obligate monogamy shown by the Rock-haunting Ringtail Possum is the rearing of younger siblings by juveniles.[7]

Communication

The rock-haunting ringtail possum mostly uses scent to communicate. Adult possums have a distinct gland on the chest and males have a paracloacal gland which is about 2 cm in diameter.[5] The possum maintains scent posts that are visited commonly. The rock-haunting ringtail possum uses both urine and faeces to mark these areas. This possum is also thought to mark tree branches using its paracloacal gland. The rock-haunting ringtail possum has been observed striking its tail against rocks, possibly as a form of communication.[7] The species also is able to make quiet screeches and grunts that serve as auditory communication.[5]

In Aboriginal language and culture

The Kunwinjku of Western Arnhem Land hunted ngingma, as they call this possum by placing sugar bag (bush honey) on a rock. Attracted to the bait the animal was then speared.[11] Another name for this species in Bininj Kunwok is djorrkkun.[12][13]

References

Wikispecies has information related to Petropseudes dahli.
Wikimedia Commons has media related to Petropseudes dahli.
  1. ^ a b Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 51. ISBN 0-801-88221-4. OCLC 62265494.
  2. ^ Burbidge, A.; Woinarski, J.; Winter, J.; Runcie, M. (2016). "Petropseudes dahli". IUCN Red List of Threatened Species. 2016: e.T40580A21962333. doi:10.2305/IUCN.UK.2016-2.RLTS.T40580A21962333.en. Retrieved 13 November 2021.
  3. ^ a b Menkhorst, Peter (2001). A Field Guide to the Mammals of Australia. Oxford University Press. p. 96.
  4. ^ a b ADW: Petropseudes dahli: Information
  5. ^ a b c d e f g h i Collett; Kerle, J.A.; Winter, J.W. (1995). Strahan, R. (ed.). The Mammals of Australia (2nd ed.). Carlton, VIC: New Holland Publishers Pty Ltd.
  6. ^ a b McKay, G.M. (1989). Walton, D.W.; Richardson, B.J. (eds.). "Family Petauridae". Fauna of Australia. Canberra: Australian Government Publishing. 1B: 665–678.
  7. ^ a b c d e f g h Runcie, M.J. (1999). "Biparental care and obligate monogamy in the rock-haunting possum, Petropseudes dahli, from tropical Australia". Animal Behaviour. 59 (5): 1001–1008. doi:10.1006/anbe.1999.1392. PMID 10860527. S2CID 33211860.
  8. ^ Eisenberg, J. F.; Muckenhirn, N. A.; Rudran, R. (1972). "The relation between ecology and social structure in primates". Science. 176 (4037): 863–875. doi:10.1126/science.176.4037.863. PMID 17829291.
  9. ^ Martin, S. (2002). "Declining mammals of the savannas". Tropical Topics. 75: 1–8.
  10. ^ Carpenter, C.R. (1940). "A field study in Siam of the behaviour and social relations of the gibbon (Hylobates lar)". Comparative Psychology Monographs. 16: 1–212.
  11. ^ Goodfellow, D. (1993). Fauna of Kakadu and the Top End. Wakefield Press. p. 25. ISBN 1862543062.
  12. ^ "Rock-Ringtail Possum". pad.katalyst.com.au. Bininj Kunwok. Retrieved 5 March 2020.
  13. ^ Garde, Murray. "djorrkkun". Bininj Kunwok Online Dictionary. Bininj Kunwok Regional Language Centre. Retrieved 30 Oct 2021.
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Rock-haunting ringtail possum: Brief Summary ( englanti )

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The rock-haunting ringtail possum (Petropseudes dahli), also known as the rock ringtail possum, is a species of Australian possum. It is found in rocky escarpments in the Kimberley, Arnhem Land and Gulf of Carpentaria across Western Australia and Northern Territory and just passing the Queensland border. It is also found on Groote Eylandt. It is the only species in the genus Petropseudes, but is part of the group including the common ringtail possum (Pseudocheirus peregrinus).

The rock-haunting ringtail possum has one of the shortest tails of all ringtail possums, and at its end it is hairless and scaly. It lives in small groups and is mainly herbivorous. It has a stocky build and is mostly grey in colour.

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Petropseudes dahli ( kastilia )

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El falangero rupestre (Petropseudes dahli) es una especie de mamífero marsupial de la familia Pseudocheiridae endémica de Australia. Vive en escarpaduras rocosas de Kimberley, Tierra de Arnhem y el golfo de Carpentaria, a lo largo de Australia Occidental y el Territorio del Norte, y atravesando apenas la frontera con Queensland. También vive en Groote Eylandt. Es la única especie del género Petropseudes, pero forma parte del grupo que también incluye el falangero de cola escamosa (Pseudocheirus peregrinus).

Referencias

  1. Burbidge, A., Woinarski, J., Winter, J. y Runcie, M. (2008). «Petropseudes dahli». Lista Roja de especies amenazadas de la UICN 2012.2 (en inglés). ISSN 2307-8235. Consultado el 8 de febrero de 2013.

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Petropseudes dahli: Brief Summary ( kastilia )

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El falangero rupestre (Petropseudes dahli) es una especie de mamífero marsupial de la familia Pseudocheiridae endémica de Australia. Vive en escarpaduras rocosas de Kimberley, Tierra de Arnhem y el golfo de Carpentaria, a lo largo de Australia Occidental y el Territorio del Norte, y atravesando apenas la frontera con Queensland. También vive en Groote Eylandt. Es la única especie del género Petropseudes, pero forma parte del grupo que también incluye el falangero de cola escamosa (Pseudocheirus peregrinus).

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Petropseudes dahli ( baski )

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Petropseudes dahli Petropseudes generoko animalia da. Martsupialen barruko Diprotodontia ordeneko animalia da. Pseudocheirinae azpifamilia eta Pseudocheiridae familian sailkatuta dago.

Erreferentziak

  1. (Ingelesez)Mammals - full taxonomy and Red List status Ugaztun guztien egoera 2008an
  2. Collett (1895) 490 18 Zool. Anz. 464. or..

Ikus, gainera

(RLQ=window.RLQ||[]).push(function(){mw.log.warn("Gadget "ErrefAurrebista" was not loaded. Please migrate it to use ResourceLoader. See u003Chttps://eu.wikipedia.org/wiki/Berezi:Gadgetaku003E.");});
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Petropseudes dahli: Brief Summary ( baski )

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Petropseudes dahli Petropseudes generoko animalia da. Martsupialen barruko Diprotodontia ordeneko animalia da. Pseudocheirinae azpifamilia eta Pseudocheiridae familian sailkatuta dago.

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Petropseudes dahli ( ranska )

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Petropseudes dahli est la seule espèce du genre Petropseudes.

Elle était autrefois classée dans le genre Pseudocheirus, sous le nom Pseudochirus dahli.

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Petropseudes dahli ( Italia )

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Il coda ad anello delle rocce (Petropseudes dahli Collett, 1895) è un marsupiale della famiglia degli Pseudocheiridi. È l'unica specie del genere Petropseudes Thomas, 1923, ed appartiene alla sottofamiglia degli Pseudocheirini, la stessa del coda ad anello comune (Pseudocheirus peregrinus)[2].

Tra tutti gli Pseudocheiridi il coda ad anello delle rocce è uno di quelli con la coda più corta; essa è priva di pelo e ricoperta di squame all'estremità. Vive in piccoli gruppi ed è prevalentemente vegetariano. Ha una costituzione tozza ed è ricoperto da un manto generalmente di colore grigio[3].

Descrizione

Il coda ad anello delle rocce ha all'incirca le dimensioni di un piccolo coniglio. Il manto è di colore variabile dal grigio al grigio-rossastro sul dorso, mentre le regioni inferiori sono di color crema chiaro. Presenta delle chiazze di pelo bianco al di sotto delle orecchie, che sono piccole e rotonde, e sopra e sotto gli occhi[4]. Lungo il corpo, dalla sommità del capo fino a metà dorso, corre una striscia dorsale più scura. Come altri opossum, è dotato di coda prensile, molto utile per afferrare rami o altri oggetti. Tuttavia, rispetto a quella degli altri opossum, essa ha la particolarità unica di essere ricoperta di pelo solo per metà. I maschi hanno una lunghezza testa-tronco di 33,4-37,5 cm, mentre le femmine sono generalmente più grandi e hanno una lunghezza testa-corpo di 34,9-38,3 cm e un peso di 1280-2000 g. Un altro aspetto insolito di questa specie è la presenza di pupille verticali[5].

Biologia

Alimentazione

Il coda ad anello delle rocce si nutre di frutta, fiori e foglie di una grande varietà di alberi presenti nel suo territorio e occasionalmente mangia anche termiti. Quando va in cerca di cibo generalmente non si allontana mai molto dalle rocce su cui risiede, ma talvolta si spinge anche a 100 m di distanza dall'affioramento roccioso più vicino. La maggior parte dei fiori di cui si nutre appartiene ad alberi di Eucalyptus miniata ed E. tetrodonta. I frutti, invece, appartengono a piante di Zyziphus oenoplia, Vitex glabrata, Terminalia ferdinandiana e Owenia vernicosa. Le foglie predilette sono quelle degli alberi di Flagelleria indica e Pouteria sericea e di varie specie di rampicanti[5].

Predatori

Tra i predatori del coda ad anello delle rocce figurano il dingo (Canis lupus dingo), il pitone di Oenpelli (Morelia oenpelliensis), il pitone oliva (Liasis olivaceous), i quoll (genere Dasyurus), i rapaci notturni (Strigiformi), i gatti randagi (Felis catus), i cani domestici (Canis lupus familiaris) e gli esseri umani (Homo sapiens)[4]. Il coda ad anello delle rocce trascorre gran parte del tempo a osservare i dintorni per poter individuare possibili predatori. A tale scopo si arrampica su rami o sporgenze per godere di una vista migliore. Nel tentativo di scoraggiare i predatori e avvertire i conspecifici, questo opossum sbatte la coda contro i rami degli alberi con forza tale da far tremare l'intero albero[6].

Comportamento

Tra tutti gli opossum australiani, il coda ad anello delle rocce è quello che vive in gruppi familiari più coesi. Gli adulti e i loro piccoli rimangono per tutta la notte a non più di 2-3 m di distanza gli uni dagli altri[5]. I gruppi familiari sono in genere costituiti da circa 4 individui, sebbene siano stati registrati anche gruppi di 2-10 esemplari. L'animale trascorre gran parte del tempo stando nascosto all'interno di mucchi di rocce o fessure[6]. Dopo il tramonto si sposta dalla sua dimora rocciosa per dirigersi sugli alberi vicini in cerca di cibo. È una creatura riservata, difficile da catturare, e cerca di evitare il più possibile contatti e incontri con altri animali. È prevalentemente terricolo e sale sugli alberi esclusivamente per nutrirsi. Tale particolarità lo contraddistingue dai suoi parenti, che conducono perlopiù vita arboricola[7]. I suoi occhi brillano di una luce intensa quando vengono colpiti da una forte sorgente luminosa, ma diversamente dalla maggior parte degli opossum non rimane immobile quando viene illuminato da un riflettore. Al contrario, si ritira nella sua dimora rocciosa o in un crepaccio, dove si nasconde infilando la testa in una fessura e lasciando fuori il resto del corpo[5].

Riproduzione

Non sembra esserci una particolare stagione destinata alla riproduzione. Tuttavia, femmine con un piccolo già cresciuto nel marsupio e un altro piccolo sul dorso sono state viste in marzo, luglio, agosto e settembre. Sebbene per questa specie non siano disponibili informazioni riguardanti il periodo di gestazione, è noto che specie a esso imparentate hanno periodi di gestazione di 16-30 giorni. Il neonato trascorre le sue prime cinque settimane di vita nel grosso marsupio materno contenente due capezzoli. I genitori generalmente trasportano il neonato sul dorso dopo che questo ha lasciato il marsupio materno. Le cure parentali vengono suddivise quasi equamente tra i due genitori. Nella cura del piccolo i genitori vengono assistiti anche dai giovani delle cucciolate precedenti, che generalmente rimangono nel nucleo familiare[5]. I genitori effettuano tutta una serie di comportamenti protettivi, trascorrendo parte del tempo cercando di localizzare i predatori, cercando di allontanarli sbattendo la coda, e tenendo i giovani vicini richiamandoli con vocalizzazioni[6].

Struttura sociale

Entrambi i sessi occupano territori di pari dimensioni. Ciascun territorio misura in media 0,9 ettari, ma le dimensioni variano da 0,5 a 1,2 ettari. La densità media in queste aree è di 0,4 esemplari per ettaro[5]. Entro il proprio territorio, contrassegnato da marcature odorose, le femmine vivono con un unico maschio. Per marcare il territorio, il coda ad anello delle rocce strofina o preme la regione caudo-cloacale o il petto sulla superficie da delimitare. Sebbene l'animale marchi anche rocce e alberi del suo territorio, le marcature odorose sono più numerose in prossimità della tana[6].

Il coda ad anello delle rocce è uno dei pochi marsupiali rigorosamente monogami. Una caratteristica importante della monogamia obbligata di questa specie è l'esistenza di legami di coppia coesi e persistenti con attrazione reciproca o a senso unico da parte degli adulti[8]. Entrambi i sessi di questa specie mantengono forti legami di coppia, come dimostra la vasta gamma di comportamenti di assistenza, che sono indice della «forza» del legame. Tuttavia, i maschi mantengono il legame di coppia con un tasso più elevato di quanto facciano le femmine. Entrambi i sessi condividono i processi decisionali per quanto riguarda i cambiamenti nelle attività di gruppo[6].

La presenza di legami di lunga durata tra genitori e figli riscontrati nelle famiglie di questa specie sono un altro attributo della monogamia obbligata. Entrambi i sessi di coda ad anello delle rocce mostrano sostanziali cure parentali a lungo termine. Tra i comportamenti insoliti osservati in questa specie figurano gli abbracci dati dal maschio ai piccoli e la formazione di ponti. Entrambi i genitori abbracciano i piccoli, ma solo le femmine sono implicate nella formazione di ponti[6]. La madre consente al suo piccolo di passare da un ramo all'altro utilizzando il suo corpo come un ponte. Questo comportamento non è mai stato riscontrato in nessun altro opossum[9]. Abbracciare i piccoli è, per gli adulti, un modo per conoscere il loro stadio di sviluppo[10]. Una terza caratteristica della monogamia obbligata nel coda ad anello delle rocce sono le cure portate ai piccoli dai loro fratelli maggiori[6].

Comunicazione

Per comunicare il coda ad anello delle rocce utilizza soprattutto marcature odorose. Gli adulti possiedono una particolare ghiandola sul petto e i maschi hanno inoltre una ghiandola paracloacale di circa 2 cm di diametro[5]. L'animale mantiene appositi siti di marcatura che vengono visitati dagli altri membri della famiglia. Per marcare queste aree vengono utilizzati sia l'urina che le feci. Si ritiene inoltre che questo opossum marchi i rami degli alberi con la sua ghiandola paracloacale. Talvolta è stato visto percuotere la coda contro le rocce, forse per comunicare[6]. La specie è anche in grado di emettere strida e grugniti tranquilli che potrebbero fungere da segnali di comunicazione uditiva[5].

Distribuzione e habitat

Il coda ad anelli delle rocce è diffuso nelle aree rocciose del Kimberley, della Terra di Arnhem e del golfo di Carpentaria, entro i confini di Australia Occidentale, Territorio del Nord e di una piccola parte del Queensland. È presente anche a Groote Eylandt[3].

Il coda ad anello delle rocce vive esclusivamente su affioramenti rocciosi e predilige le zone con grossi massi e rocce profondamente fessurate. Utilizza le fessure per nascondere solo la testa, lasciando esposto il resto del corpo. Conduce vita rigorosamente notturna; esce fuori dai ripari tra le rocce solamente di notte, quando si arrampica sugli alberi in cerca di cibo. Non costruisce un nido e talvolta è stato visto dormire durante il giorno su sporgenze rocciose ben protette. Questo suggerisce un alto livello di adattamento a un'esistenza terricola. Indici di una scarsa vita arboricola, rispetto ai suoi parenti, sono zampe e artigli più brevi, coda più corta e muso leggermente più allungato[5].

La specie gioca un ruolo di primo piano nell'ambiente in cui abita, poiché disperde i semi contenuti nella frutta di cui si nutre. Esercita anche una certa influenza sulle popolazioni di termiti e costituisce una preda per alcuni predatori della regione. L'uomo ne ha frammentato sempre più l'habitat e per questo motivo il numero di esemplari è diminuito grandemente. La specie compare nell'elenco delle specie minacciate dell'Australia Occidentale[7].

Note

  1. ^ (EN) Lamoreux, J. & Hilton-Taylor, C. (Global Mammal Assessment Team) 2008, Petropseudes dahli, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.
  2. ^ (EN) D.E. Wilson e D.M. Reeder, Petropseudes dahli, in Mammal Species of the World. A Taxonomic and Geographic Reference, 3ª ed., Johns Hopkins University Press, 2005, ISBN 0-8018-8221-4.
  3. ^ a b Peter Menkhorst, A Field Guide to the Mammals of Australia, Oxford University Press, 2001, p. 96.
  4. ^ a b ADW: Petropseudes dahli: Information
  5. ^ a b c d e f g h i Collett; Kerle, J.A.; Winter, J.W., The Mammals of Australia, a cura di Strahan, R.(ed), 2nd, Carlton, VIC, New Holland Publishers Pty Ltd, 1995.
  6. ^ a b c d e f g h M.J. Runcie, Biparental care and obligate monogamy in the rock-haunting possum, Petropseudes dahli, from tropical Australia, in Animal Behaviour, vol. 59, n. 5, 1999, pp. 1001–1008, DOI:10.1006/anbe.1999.1392, PMID 10860527.
  7. ^ a b McKay, G.M., Family Petauridae, in Walton, D.W.; Richardson, B.J. (a cura di), Fauna of Australia, 1B, Canberra, Australian Government Publishing, 1989, pp. 665–678.
  8. ^ Eisenberg, J. F.; Muckenhirn, N. A.; Rudran, R., The relation between ecology and social structure in primates, in Science, vol. 176, n. 4037, 1972, pp. 863–875, DOI:10.1126/science.176.4037.863, PMID 17829291.
  9. ^ Martin, S., Declining mammals of the savannas, in Tropical Topics, vol. 75, 2002, pp. 1–8.
  10. ^ Carpenter, C.R., A field study in Siam of the behaviour and social relations of the gibbon (Hylobates lar), in Comparative psychology Monographs, vol. 16, 1940, pp. 1–212.

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Petropseudes dahli: Brief Summary ( Italia )

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Il coda ad anello delle rocce (Petropseudes dahli Collett, 1895) è un marsupiale della famiglia degli Pseudocheiridi. È l'unica specie del genere Petropseudes Thomas, 1923, ed appartiene alla sottofamiglia degli Pseudocheirini, la stessa del coda ad anello comune (Pseudocheirus peregrinus).

Tra tutti gli Pseudocheiridi il coda ad anello delle rocce è uno di quelli con la coda più corta; essa è priva di pelo e ricoperta di squame all'estremità. Vive in piccoli gruppi ed è prevalentemente vegetariano. Ha una costituzione tozza ed è ricoperto da un manto generalmente di colore grigio.

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Rotskoeskoes ( flaami )

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De rotskoeskoes (Petropseudes dahli) is een klimbuideldier uit de familie der kleine koeskoezen (Pseudocheiridae) dat voorkomt in Noord-Australië van de Kimberley (West-Australië) door het noorden van het Noordelijk Territorium, inclusief het Groote Eylandt, tot het nationale park Lawn Hill in Noordwest-Queensland. Daar leeft hij in rotsachtige, beboste gebieden. Het is de enige soort van het geslacht Petropseudes, dat verwant is aan Pseudocheirus en Pseudochirulus.

De rotskoeskoes is een gedrongen koeskoes met een staart die bij de wortel dik en behaard is, maar waarvan de tweede helft dun, roze en onbehaard is. De bovenkant is grijs, de onderkant vuilwit. Van de ogen tot midden op de rug loopt een donkere streep. De kop-romplengte bedraagt 335 tot 385 mm, de staartlengte 200 tot 270 mm en het gewicht 1200 tot 2000 g.

Deze soort leeft in paartjes of familiegroepen. Overdag vindt de rotskoeskoes beschutting in spleten in de rotsen, maar 's nachts verschijnt het dier en klimt het met het grootste gemak in rotsen en bomen. Dan eet het bladeren, bloemen en fruit. Er wordt een enkel jong per worp geboren; dat kan in elke maand gebeuren.

Literatuur

  • Groves, C.P. 2005. Order Diprotodontia. Pp. 43-70 in Wilson, D.E. & Reeder, D.M. (eds.). Mammal Species of the World: A taxonomic and geographic reference. 3rd ed. Baltimore: The Johns Hopkins University Press, Vol. 1: pp. i-xxxv+1-743; Vol. 2: pp. i-xvii+745-2142. ISBN 0 8018 8221 4
  • Menkhorst, P. & Knight, F. 2001. A Field Guide to the Mammals of Australia. South Melbourne: Oxford University Press, x+269 pp. ISBN 0 19 550870 X
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Rotskoeskoes: Brief Summary ( flaami )

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De rotskoeskoes (Petropseudes dahli) is een klimbuideldier uit de familie der kleine koeskoezen (Pseudocheiridae) dat voorkomt in Noord-Australië van de Kimberley (West-Australië) door het noorden van het Noordelijk Territorium, inclusief het Groote Eylandt, tot het nationale park Lawn Hill in Noordwest-Queensland. Daar leeft hij in rotsachtige, beboste gebieden. Het is de enige soort van het geslacht Petropseudes, dat verwant is aan Pseudocheirus en Pseudochirulus.

De rotskoeskoes is een gedrongen koeskoes met een staart die bij de wortel dik en behaard is, maar waarvan de tweede helft dun, roze en onbehaard is. De bovenkant is grijs, de onderkant vuilwit. Van de ogen tot midden op de rug loopt een donkere streep. De kop-romplengte bedraagt 335 tot 385 mm, de staartlengte 200 tot 270 mm en het gewicht 1200 tot 2000 g.

Deze soort leeft in paartjes of familiegroepen. Overdag vindt de rotskoeskoes beschutting in spleten in de rotsen, maar 's nachts verschijnt het dier en klimt het met het grootste gemak in rotsen en bomen. Dan eet het bladeren, bloemen en fruit. Er wordt een enkel jong per worp geboren; dat kan in elke maand gebeuren.

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Skałopałanka australijska ( puola )

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Skałopałanka australijska[3], pseudopałanka naskalna[4] (Petropseudes dahli) – gatunek ssaka z rodziny pseudopałankowatych (Pseudocheiridae), jedyny przedstawiciel rodzaju skałopałanka[3] (Petropseudes).

Występowanie i biotop

Płaskowyż Kimberley w Australii Zachodniej, Ziemia Arnhema na Terytorium Północnym oraz na Groote Eylandt. Zamieszkuje skały i rumowiska, nierzadko w pobliżu wody.

Charakterystyka ogólna

Podstawowe dane Długość ciała 33-38 cm Długość ogona 20-26,5 cm Masa ciała 1300-2000 g Dojrzałość płciowa po 7 miesiącach Liczba młodych
w miocie 1-2 młode

Wygląd

Mały torbacz o budowie ciała przystosowanej do naziemnego trybu życia (w odróżnieniu od innych przedstawicieli tej rodziny, które preferują nadrzewny tryb życia). Sierść na wierzchu ciała koloru szarego lub szarobrązowego z pręgami na grzbiecie. Spód ciała jest jaśniejszy. Futro jest długie i wełniste, również u nasady chwytnego ogona. Koniec ogona jest nagi. Głowa o małych, zaokrąglonych uszach i dużych, ciemnych oczach. Białe plamy przy uszach i oczach. Źrenice oczu ustawione pionowo.

Tryb życia

Petropseudes dahli jest zwierzęciem aktywnym nocą, dzień spędzając na ziemi, śpiąc wśród odłamków skalnych lub w skalnych szczelinach. Nie buduje gniazd. Żyje w małych grupach rodzinnych składających się z 2-4 osobników (obserwowano również grupy liczące do 10 osobników), zajmując obszar około 1 ha. Prowadzi skryty tryb życia i unika kontaktu z innymi grupami pseudopałenek. Najczęściej o obecności Petropseudes dahli świadczą czerwonobrązowe odchody w kształcie wałeczków o dł. 15-25 mm i śr. 5 mm. Samica rodzi 1-2 (najczęściej jedno) młode, które spędzają pierwsze 5 tygodni w torbie matki. Po tym okresie coraz częściej opuszczają torbę samicy. Samiec aktywnie uczestniczy w wychowywaniu młodych, często nosząc małe na plecach[5]. Po 7 miesiącach młode uzyskują dojrzałość płciową.

Gatunek ten odżywia się kwiatami, owocami i liśćmi drzew i krzewów rosnących wśród skał lub w ich pobliżu.

Znaczenie

Na gatunek ten polują liczne zwierzęta: dingo australijski, pyton północnoaustralijski, pyton oliwkowy, niełaz (Dasyurus), sowy, domowe koty i psy oraz człowiek.

Zagrożenie i ochrona

W Czerwonej księdze gatunków zagrożonych Międzynarodowej Unii Ochrony Przyrody i Jej Zasobów została zaliczona do kategorii niskiego ryzyka LC[2].

Przypisy

  1. Petropseudes dahli, w: Integrated Taxonomic Information System (ang.).
  2. a b A. Burbidge, J. Woinarski, J. Winter & M. Runcie 2016, Petropseudes dahli [w:] The IUCN Red List of Threatened Species 2018 [online], wersja 2017-3 [dostęp 2018-02-03] (ang.).
  3. a b W. Cichocki, A. Ważna, J. Cichocki, E. Rajska-Jurgiel, A. Jasiński & W. Bogdanowicz: Polskie nazewnictwo ssaków świata. Warszawa: Muzeum i Instytut Zoologii PAN, 2015, s. 13. ISBN 978-83-88147-15-9. (pol.ang.)
  4. E. Keller, prof. dr. J. H. Reichholf, G. Steinbach i inni: Leksykon zwierząt: Ssaki. Cz. 1. Warszawa: Horyzont, 2001, s. 34. ISBN 83-7227-610-2.
  5. Myf Runcie: Ecology and behaviour of tropical Rock-haunting possums (Petropseudes Dahli and Wyulda Squamicaudata) (ang.). Tropical Savannas CRC. [dostęp 22 czerwca 2008].

Bibliografia

  1. Robert Stroede: Petropseudes dahli (ang.). Animal Diversity Web. [dostęp 22 czerwca 2008].
  2. Wilson Don E. & Reeder DeeAnn M. (red.) Petropseudes dahli. w: Mammal Species of the World. A Taxonomic and Geographic Reference (Wyd. 3.) [on-line]. Johns Hopkins University Press, 2005. (ang.) [dostęp 22 czerwca 2008]
  3. E. Keller, prof. dr. J. H. Reichholf, G. Steinbach i inni: Leksykon zwierząt: Ssaki. Cz. 1. Warszawa: Horyzont, 2001. ISBN 83-7227-610-2.
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Skałopałanka australijska: Brief Summary ( puola )

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Skałopałanka australijska, pseudopałanka naskalna (Petropseudes dahli) – gatunek ssaka z rodziny pseudopałankowatych (Pseudocheiridae), jedyny przedstawiciel rodzaju skałopałanka (Petropseudes).

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Pseudochirops dahli ( portugali )

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Pseudochirops dahli é uma espécie de marsupial da família Pseudocheiridae. Endêmica da Austrália. Anteriormente a espécie pertencia a um gênero próprio, o Petropseudes, entretanto estudos recentes demonstraram que a espécie encontra-se posicionada entre os membros do gênero Pseudochirops.

Referências

  • GROVES, C. P. Order Diprotodontia. In: WILSON, D. E.; REEDER, D. M. (Eds.). Mammal Species of the World: A Taxonomic and Geographic Reference. 3. ed Baltimore: Johns Hopkins University Press, 2005. v. 1, p. 43-70.
  • MEREDITH, R.W.; WESTERMAN, M.; SPRINGER, M.S. 2009. A phylogeny of Diprotodontia (Marsupialia) based on sequences for five nuclear genes. Molecular Phylogenetics and Evolution 51 (3): 554-571.
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Pseudochirops dahli: Brief Summary ( portugali )

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Pseudochirops dahli é uma espécie de marsupial da família Pseudocheiridae. Endêmica da Austrália. Anteriormente a espécie pertencia a um gênero próprio, o Petropseudes, entretanto estudos recentes demonstraram que a espécie encontra-se posicionada entre os membros do gênero Pseudochirops.

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Petropseudes dahli ( ruotsi )

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Petropseudes dahli är ett pungdjur i familjen ringsvanspungråttor och den enda arten i sitt släkte. I motsats till andra arter i familjen lever den företrädesvis på marken.

Beskrivning

Djuret har en lång och mjuk päls med rödaktig till grå ovansida och ljusgrå undersida. På ryggens mit finns en längsgående svart strimma. Svansen är jämförelsevis kort men kan användas som gripverktyg.[2] På svansens undersida och vid spetsen saknas hår.[3] Petropseudes dahli saknar de två motsättliga fingrarna vid de främre extremiteterna som finns hos andra arter i familjen. Djuret når en kroppslängd (huvud och bål) mellan 33 och 45 centimeter, en svanslängd mellan 20 och 28 centimeter samt en vikt mellan 1,3 och 2 kilogram.[2][3]

Denna ringsvanspungråtta lever i norra Australien. Utbredningsområdet sträcker sig över nordöstra Western Australia, norra Northern Territory och nordvästra Queensland. Habitatet utgörs av klippiga regioner och savanner.[1]

Individerna är aktiva på natten och sover på dagen gömd i bergssprickor eller jordhålor.[2] Troligtvis bygger de inga bon.[3] Vid letandet efter föda klättrar de ibland på träd för att komma åt blad och frukter. Annars äter de blommor och ibland termiter. De lever vanligen i par eller mindre grupper.[3]

Honor har två spenar i pungen (marsupium). Det är inga särskilda parningstider kända och vanligen föds ett ungdjur åt gången, sällan tvillingar.[3] Efter cirka fem veckor slutar honan med digivning. Sedan deltar även hanen i ungens uppfostring. Ungar stannar ofta fram till nästa året hos modern tills nästa syskonet blir född.[3]

Arten har flera fiender som rovpungdjur, ugglor, dingon, tamhundar och tamkatter. Trots allt anses djuret inte hotat i beståndet. IUCN listar Petropseudes dahli som livskraftig (LC).[1]

Referenser

Den här artikeln är helt eller delvis baserad på material från tyskspråkiga Wikipedia, 13 juni 2009.

Noter

  1. ^ [a b c] Petropseudes dahliIUCN:s rödlista, auktor: Burbidge, A., Woinarski, J., Winter, J. & Runcie, M. 2008, besökt 21 oktober 2009.
  2. ^ [a b c] Nowak, R. M. (1999) s.135
  3. ^ [a b c d e f] R. Stroede (13 april 2007). ”Rock ringtail possum” (på engelska). Animal Diversity Web. University of Michigan. http://animaldiversity.ummz.umich.edu/site/accounts/information/Petropseudes_dahli.html. Läst 17 juni 2013.

Tryckta källor

  • Ronald M. Nowak (1999): Walker's Mammals of the World. Johns Hopkins University Press, ISBN 0-8018-5789-9

Externa länkar

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Petropseudes dahli: Brief Summary ( ruotsi )

tarjonnut wikipedia SV

Petropseudes dahli är ett pungdjur i familjen ringsvanspungråttor och den enda arten i sitt släkte. I motsats till andra arter i familjen lever den företrädesvis på marken.

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Petropseudes dahli ( vietnam )

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Petropseudes dahli là một loài động vật có vú trong họ Pseudocheiridae, bộ Hai răng cửa. Loài này được Collett mô tả năm 1895.[2]

Hình ảnh

Chú thích

  1. ^ Burbidge, A., Woinarski, J., Winter, J. & Runcie, M. (2008). Petropseudes dahli. 2008 Sách đỏ IUCN. Liên minh Bảo tồn Thiên nhiên Quốc tế 2008. Truy cập ngày 28 tháng 12 năm 2008. Database entry includes justification for why this species is of least concern
  2. ^ a ă Wilson, D. E.; Reeder, D. M. biên tập (2005). “Petropseudes dahli”. Mammal Species of the World . Baltimore: Nhà in Đại học Johns Hopkins, 2 tập (2.142 trang). ISBN 978-0-8018-8221-0. OCLC 62265494.

Tham khảo

Liên kết ngoài

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Hình tượng sơ khai Bài viết liên quan đến động vật có vú này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Petropseudes dahli: Brief Summary ( vietnam )

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Petropseudes dahli là một loài động vật có vú trong họ Pseudocheiridae, bộ Hai răng cửa. Loài này được Collett mô tả năm 1895.

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Скалистый кускус ( venäjä )

tarjonnut wikipedia русскую Википедию
Латинское название Petropseudes dahli
(Collett, 1895)
Ареал
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ITIS 609822 NCBI 596258 Охранный статус
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Вызывающие наименьшие опасения
IUCN 3.1 Least Concern: 40580

Скалистый кускус[1], или кускус Даля[1] (лат. Petropseudes dahli) — сумчатое млекопитающее из семейства кольцехвостых поссумов. Единственный представитель рода Petropseudes, который живёт преимущественно на земле. Видовое название дано в честь норвежского зоолога Кнута Даля[en] (1871—1951)[2].

Описание

Длина тела составляет от 33 до 45 см, хвост длиной от 20 до 28 см, масса составляет от 1,3 до 2 кг. Длинная, мягкая шерсть сверху красновато-серого, а снизу светло-серого цвета. Короткий хвост может использоваться для хватания, его вершина и задняя часть нижней стороны безволосые. В отличие от других представителей семейства первые 2 пальца этих животных не противопоставлены.

Распространение

Эти животные живут в северной Австралии, область распространения охватывает северо-восток Западной Австралии, север Северной территории и северо-запад Квинсленда. Естественная среда обитания вида — это скалистые регионы, а также саванны.

Образ жизни

Они активны ночью и спят в течение дня в расщелинах скал или пещерах. Вероятно, они не строят гнёзда. Ночью они отправляются на поисках корма, при этом они часто влезают на деревья, чтобы сорвать листья и плоды. Они часто живут парами или небольшими группами.

Размножение

О размножении известно мало. У самок есть открытая вперёд сумка с двумя сосками. Спаривание может происходить круглый год сочетание. Чаще на свет появляется один детёныш.

Примечания

  1. 1 2 Соколов В. Е. Пятиязычный словарь названий животных. Млекопитающие. Латинский, русский, английский, немецкий, французский. / под общей редакцией акад. В. Е. Соколова. — М.: Рус. яз., 1984. — С. 21. — 10 000 экз.
  2. Bo Beolens, Michael Watkins, and Mike Grayson. The eponym dictionary of mammals. — Baltimore: The Johns Hopkins University Press, 2009. — P. 96. — 574 p. — ISBN 978-0-8018-9304-9.
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Скалистый кускус: Brief Summary ( venäjä )

tarjonnut wikipedia русскую Википедию

Скалистый кускус, или кускус Даля (лат. Petropseudes dahli) — сумчатое млекопитающее из семейства кольцехвостых поссумов. Единственный представитель рода Petropseudes, который живёт преимущественно на земле. Видовое название дано в честь норвежского зоолога Кнута Даля[en] (1871—1951).

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바위반지꼬리주머니쥐 ( Korea )

tarjonnut wikipedia 한국어 위키백과

바위반지꼬리주머니쥐 (Petropseudes dahli)는 오스트레일리아 주머니쥐의 일종이다. 웨스턴오스트레일리아주노던 준주를 가로질러 퀸즐랜드주 국경을 지나 킴벌리와 아넴랜드, 카펀테리아 만의 가파른 바위 경사면에서 발견된다. 그루트아일런드 섬에서도 발견된다.[3] 바위반지꼬리주머니쥐속(Petropseudes)의 유일종이지만, 반지꼬리주머니쥐 (Pseudocheirus peregrinus)를 포함하는 반지꼬리주머니쥐아과(Pseudocheirinae)의 일부이다.[1] 모든 반지꼬리주머니쥐 중에서 꼬리가 가장 작은 종의 하나이며,꼬리 끝에 털이 없고 비늘이 있다. 작은 무리를 지어 생활하며, 주로 초식을 하는 동물이다. 땅딸막한 체격의 몸을 갖고 있으며, 대체로 회색을 띤다.[3]

각주

  1. Groves, C.P. (2005). Wilson, D.E.; Reeder, D.M., 편집. 《Mammal Species of the World: A Taxonomic and Geographic Reference》 (영어) 3판. 존스 홉킨스 대학교 출판사. 51쪽. ISBN 0-801-88221-4. OCLC 62265494.
  2. “Petropseudes dahli”. 《멸종 위기 종의 IUCN 적색 목록. 2008판》 (영어). 국제 자연 보전 연맹. 2008. 2008년 12월 28일에 확인함.
  3. Menkhorst, Peter (2001). 《A Field Guide to the Mammals of Australia》. Oxford University Press. 96쪽.
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바위반지꼬리주머니쥐: Brief Summary ( Korea )

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바위반지꼬리주머니쥐 (Petropseudes dahli)는 오스트레일리아 주머니쥐의 일종이다. 웨스턴오스트레일리아주노던 준주를 가로질러 퀸즐랜드주 국경을 지나 킴벌리와 아넴랜드, 카펀테리아 만의 가파른 바위 경사면에서 발견된다. 그루트아일런드 섬에서도 발견된다. 바위반지꼬리주머니쥐속(Petropseudes)의 유일종이지만, 반지꼬리주머니쥐 (Pseudocheirus peregrinus)를 포함하는 반지꼬리주머니쥐아과(Pseudocheirinae)의 일부이다. 모든 반지꼬리주머니쥐 중에서 꼬리가 가장 작은 종의 하나이며,꼬리 끝에 털이 없고 비늘이 있다. 작은 무리를 지어 생활하며, 주로 초식을 하는 동물이다. 땅딸막한 체격의 몸을 갖고 있으며, 대체로 회색을 띤다.

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