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The main anti-predator adaptation of Lumholtz’s tree kangaroos is crypsis. Because they are small, solitary, nocturnal, and often high in the canopy, they are hard to find. Known predators are feral dogs (Canis lupus familiaris), dingoes (Canis lupus dingo), and humans (Homo sapiens). They are also probably eaten by amethystine pythons (Morelia amethistina), which are known predators of Bennett’s tree kangaroos. It is possible that juveniles are hunted by wedge-tailed eagles (Aquila audax).
Known Predators:
Anti-predator Adaptations: cryptic
Dendrolagus lumholtzi is a small macropodid, with males averaging 8.6 kg and females averaging 7.1 kg. Adults have an average head and body length of 0.5 m, and an average tail length of 0.7 m. The hindlimbs are well developed but proportionally smaller than those of terrestrial kangaroos. The tail and forelimbs, on the other hand, are proportionally larger than those of terrestrial kangaroos. These are adaptations for arboreal locomotion. The tail is hairy, uniformly thick, non-prehensile, and may be up to 15% longer than the combined head-body length. The arms are well-developed and muscular. Ears are short and ursine. Long, curved claws are present on all five digits of the forepaws. The hind paws include a large fourth digit and medium fifth digit; the first and second digits are syndactylous, but with 2 claws. No hallux is present. Both the fore and hind paws have large, fleshy pads with numerous tuberculations (papillae), used for gripping arboreal surfaces. The entire body is covered in hair: back hair is grizzled gray with blackish tips and the underbelly is creamy or sometimes orange. The muzzle is black and there is a distinctive pale gray forehead band. The forepaws, hindpaws, and tip of the tail are also black. The adult tail is bicolored: the lower surface is black, and the upper surface is gray (same color as the back). Juveniles have an all-black tail and lack the pale forehead band. There is no evidence of significant sexual dimorphism, seasonal variation, geographic variation, or subspecies. Dendrolagus lumholtzi has long, blade-like upper premolars, similar to that of Dendrolagus inustus; this is thought to be ancestral among tree kangaroos. While the basal metabolic rate is not known precisely, it is thought to be low for a mammal of its size.
Average mass: 8.6 (males), 7.1 (females) kg.
Average length: 0.5 m.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: male larger
There is little information about the lifespan of D. lumholtzi, but D. matschiei, a closely related tree kangaroo, has been reported to live for up to 20 years in captivity.
Dendrolagus lumholtzi inhabits upland rainforest and is generally restricted to higher elevations – approximately 600 to 1200 meters above sea level. It occurs at very low densities in lowland forests. Within its optimal altitudinal range, it prefers to reside in basalt soil rainforest, with densities twice as high on basaltic soil as on acid igneous or metamorphic rock substrate (possibly due to basalt soil’s higher nutrient content). It may inhabit secondary and remnant forest patches as small as 20 hectares. Preferred habitats include microphyll vine forest, notophyll vine forest (both complex and simple), sclerophyll communities, and cleared land. Dendrolagus lumholtzi is often found in edge forest communities. It is unclear if this is where it spends the majority of its time, or if this is just where it is most easily spotted by humans. It is hypothesized that D. lumholtzi may prefer drier edge communities because too much rain leeches nutrients from the soil.
Range elevation: 600 to 1200 m.
Habitat Regions: tropical ; terrestrial
Terrestrial Biomes: rainforest
Lumholtz’s tree kangaroos, Dendrolagus lumholtzi, inhabit an area of approximately 5,500 sq. km in Northeast Queensland, Australia. Their range extends from the Daintree River (northern limit) to the southern end of Cardwell Range (southern limit), west to the rainforest/wet sclerophyll forest interface, and east to the coast. Their greatest concentration is in the fragmented forests of the Atherton tablelands. While possibly occurring sympatrically with Bennett’s tree kangaroos in the Mt. Carbine Tableland, the two species are generally considered allopatric. Dendrolagus lumholtzi is often found in remnant and secondary rainforests on basalt soils. It is a non-migratory species, and is only found in its native range. An estimated 12% of its distribution is within national parks; there is also considerable overlap with a World Heritage Area.
Biogeographic Regions: australian (Native )
Lumholtz’s tree kangaroos are generalist herbivores, feeding on the leaves of at least 37 species of plants, including trees, vines, shrubs, and epiphytes. While they most often consume adult leaves, individuals have been observed eating young leaves or flowers. Examples of species eaten include Cryptocarya triplinervis of the Lauraceae family, Alstonia scholaris of the Apocynaceae family, and Ripogonum album of the Vitaceae family. Interestingly, Lumholtz’s tree kangaroos have been observed feeding on several species of plant that are toxic to most mammals – these include weedy Lantana camara, shining stinging trees (Dendrocnide photinophylla), and wild tobacco plants (Solanum mauritianum). Lumholtz’s tree kangaroos have never been observed drinking water and there are no bodies of water within the home ranges of most individuals. They are thought to obtain enough water from moisture in and on their food. When feeding, they move the forelimbs simultaneously to grab leaves, bring them closer to the mouth, and then chew. Digestion includes foregut fermentation. Although foliage is abundant in the canopy, Lumholtz’s tree kangaroos cannot feed on all types of leaves; it is therefore not known whether food is a limiting resource.
Plant Foods: leaves; flowers
Primary Diet: herbivore (Folivore )
As generalist arboreal folivores, Lumholtz’s tree kangaroos fill a broad ecological niche. They occur sympatrically with other arboreal folivores, Trichosaurus vulpecula johnstoni and Pseudocheirus archeri. However, direct ecological competition is avoided by food partitioning - the diet of Lumholtz’s tree kangaroos consists of leaves higher in fiber and lower in nitrogen than the preferred foods of the other folivores. The role of this species’ scat as a soil fertilizer or a seed dsiperser has not been well studied. As well as a prey species to dingoes, wild dogs, humans, and probably pythons, Lumholtz’s tree kangaroos are hosts to various parasites. They host microscopic pathogens, including the zoonotic bacterium Burkholderia pseudomallei, various species of Mycobacterium, and the coccidian Toxoplasma gondi. All of these endoparasites can be fatal. Lumholtz’s tree kangaroos are hosts to the heterodoxus louse, (Heterodoxus pygidialis), a harmless ectoparasite; and they have an endosymbiotic relationship with many species of nematode and a species of cestode (Progamotaenia dendrolagi), most of which live in the gut.
Mutualist Species:
Commensal/Parasitic Species:
Lumholtz’s tree kangaroos have been hunted by indigenous Australian populations for thousands of years (Dendrolagus means “tree hare”), but the practice has essentially stopped. The species may be of slight economic importance as a source of ecotourism in Northeast Queensland.
Positive Impacts: ecotourism
There are no known adverse effects of D. lumholtzi on humans.
Lumholtz’s tree kangaroos are a species of least concern on the IUCN Red List and are not listed on the CITES appendices. However, relatively little of their range is protected, and habitat loss is the biggest potential threat to their well-being. Given their low birthrate and preference for small patches of isolated forest, they are quite vulnerable to habitat loss.
US Federal List: no special status
CITES: no special status
State of Michigan List: no special status
Adults do not generally communicate with each other. However, they are capable of vocalization when agitated or disturbed. Vocalizations include a soft ‘pffft’ exhalation noise when mildly agitated and a louder ‘woof’ and moaning when more agitated. All of these noises are relatively soft, none audible from over 30 m away by a human. Hearing is not thought to be particularly well developed in D. lumholtzi, as the pinnae are smaller than those of terrestrial macropods. The relative importance of sight and smell are not well studied. It is thought, however, that males use olfactory cues to determine when females are in estrous.
Communication Channels: tactile ; acoustic
Other Communication Modes: pheromones
Perception Channels: visual ; tactile ; acoustic ; chemical
Lumholtz’s tree kangaroos are thought to be one of the most basal members of the Dendrolagus lineage, which evolved from terrestrial macropodids. A 1985 observational study found many of their behaviors to be "primitive," i.e., less adapted to arboreal life than those of other tree kangaroos. For example, they exclusively use bipedal hopping on the ground, tend to move paired limbs together when feeding, and are reluctant to climb downwards headfirst. These behaviors are thought to be similar to those of the terrestrial ancestors of tree kangaroos.
Dendrologous lumholtzi exhibits a promiscuous, non-seasonal mating system, in which a male and a female likely form a brief consort relationship. The consort will stay together for a maximum of several days, during which copulation may occur up to three times a day. It is thought that a male will patrol his home range, approaching females whose ranges overlap with his. He will use olfactory and behavioral cues to determine whether a female is in estrous. Before copulation, a male will repeatedly sniff the female’s cloaca and pouch, probably to detect pheromones indicative of estrous. The male will then position himself behind the female, rub his head, neck, and shoulders against the cloaca, and proceed to mate. Copulation may last from 10 to 35 minutes. In captivity, copulation occurs most frequently on the ground; however, it is unknown if this occurs in the wild. A copulatory plug inhibits later fertilization by the sperm of other males. Active mate guarding and competition have not been observed.
Mating System: polygynandrous (promiscuous)
Breeding is non-seasonal. The female estrous cycle is between 47 and 64 days, with an average of 56.4 days. The length of gestation is between 42 and 48 days, with an average of 44.8 days. The young uses the mother’s pouch for approximately a year after birth; a joey will begin to look outside the pouch at approximately 250 days, and will make its first foray from the pouch at approximately 300 days. The young will continue to suckle the mother for about a month or two after it has permanently left the pouch. A juvenile may remain in its mother’s home range up to 650 days after birth. A mother will usually come into estrous about two months after its young has permanently left the pouch; the average inter-birth interval is 1.4 years and 1 offspring is produced per birth. There is no evidence that females exhibit postpartum estrous or embryonic diapause. Females reach sexual maturity at approximately 2.04 years, whereas males reach sexual maturity at approximately 4.6 years.
Breeding interval: Average inter-birth interval is 1.4 years.
Breeding season: Mating occurs year-round.
Average number of offspring: 1.
Range gestation period: 42 to 48 days.
Average gestation period: 44.8 days.
Average weaning age: 13-14 months.
Average time to independence: 13-14 months.
Average age at sexual or reproductive maturity (female): 2.04 years.
Average age at sexual or reproductive maturity (male): 4.6 years.
Key Reproductive Features: iteroparous ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Aside from providing sperm for fertilization, adult males put forth no parental investment. An adult female, on the other hand, invests very much in her young. A mother allows her young to stay in the pouch for about 1 year and continues to suckle for 1 or 2 months afterwards. As the young begins to leave the pouch, the mother is protective, sometimes grabbing it and encouraging it to return. Mothers invest a large amount in teaching their offspring which leaves to eat and how to maneuver safely high in the canopy. Mother-young behavioral interactions involve frequent physical contact, often initiated by the young. The young disperses from the mother’s home range by 650 days after birth.
Parental Investment: altricial ; female parental care ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female); pre-independence (Provisioning: Female, Protecting: Female); extended period of juvenile learning
Dendrolagus lumholtzi (lat. Dendrolagus lumholtzi) - ağac vallabisi cinsinə aid heyvan növü.
Məməlilər ilə əlaqədar bu məqalə qaralama halındadır. Məqaləni redaktə edərək Vikipediyanı zənginləşdirin. Dendrolagus lumholtzi (lat. Dendrolagus lumholtzi) - ağac vallabisi cinsinə aid heyvan növü.
El cangur arborícola de Lumholtz (Dendrolagus lumholtzi) és un cangur arborícola de constitució robusta que viu a les selves pluvials de la regió de la meseta Atherton, a Queensland (Austràlia). La UICN el classifica com a espècie gairebé amenaçada,[1] tot i que les autoritats locals el classifiquen com a espècie rara.[2] Fou anomenat en honor de l'explorador noruec Carl Sofus Lumholtz (1851-1922).
El cangur arborícola de Lumholtz (Dendrolagus lumholtzi) és un cangur arborícola de constitució robusta que viu a les selves pluvials de la regió de la meseta Atherton, a Queensland (Austràlia). La UICN el classifica com a espècie gairebé amenaçada, tot i que les autoritats locals el classifiquen com a espècie rara. Fou anomenat en honor de l'explorador noruec Carl Sofus Lumholtz (1851-1922).
Klokan stromový (Dendrolagus lumholtzi) má nápadně světlé pruhy v obličeji. Známe asi 6 druhů stromových klokanů.
I když se to nezdá, nejsou klokani stromoví žádní drobečkové.
V deštných lesích severovýchodního Queenslandu.
Stromoví klokani se živí listím. Mohou slézt i na zem v lese, kde pomalu hopkají nebo se pohybují po čtyřech. Na rozdíl od ostatních klokanů mají dlouhé přední nohy. V zajetí se jeden jedinec dožil dokonce 20 let.
Stromoví klokani velice dobře lezou a dalo by se říci, že nahrazují opice, které nikde v Austrálii nežijí. Jsou živorodí a jako jejich ostatní příbuzní jsou výborní skokani. Vzdálenost 9 metrů mezi korunami stromů pro ně není žádnou překážkou.
Samice je březí jenom 32 dní. Nově narozený klokánek je velice maličký- neměří ani 1 cm. Hned po narození se vyšplhá do vaku za teplem, bezpečím a mateřským mlékem. Asi po roce ve vaku se klokánek osamostatní.
Klokan stromový (Dendrolagus lumholtzi) má nápadně světlé pruhy v obličeji. Známe asi 6 druhů stromových klokanů.
Das Lumholtz-Baumkänguru (Dendrolagus lumholtzi) ist eine Art aus der Familie der Kängurus. Die Art ist nach dem norwegischen Naturforscher und Ethnologen Carl Sophus Lumholtz benannt. Neben dem Bennett-Baumkänguru (Dendrolagus bennettianus) ist es eine von zwei in Australien vorkommenden Arten der Baumkängurus. Die indigene Bezeichnung der Aborigines ist Boongarry.
Das Lumholtz-Baumkänguru wird zwischen 110 und 130 Zentimeter groß. Der runde und zylindrisch geformte Schwanz macht mehr als die Hälfte der Gesamtlänge aus. Er dient als Balancier- und Steuerorgan. Die Männchen werden größer und schwerer als die Weibchen. Die Hinterbeine sind deutlich kräftiger entwickelt als bei den bodenbewohnenden Kängurus. Die Vorderbeine sind fast gleich lang wie die Hinterbeine. Der Kopf ist klein und von leicht dreieckiger Form mit spitz zulaufender Schnauze. Die Ohren sind ausgesprochen klein und gerundet. Das Fell ist braun bis dunkelbraun oder sogar schwarz gefärbt. Die Brust- und die Bauchseite sind leicht cremefarben.
Das Lumholtz-Baumkänguru ist nachtaktiv. Es verbringt die meiste Zeit seines Lebens auf Bäumen. Es kann aus einigen Metern Höhe von einem Baum auf den Erdboden springen, ohne sich zu verletzen. Die kräftigen Hinterbeine dienen dabei als Feder. Tagsüber sitzt es zusammengekauert im Astwerk und schläft. Mit der Abenddämmerung wird es aktiv und geht auf Nahrungssuche. An Ästen hält es sich sowohl mit den Hinter- als auch mit den Vorderbeinen fest. Das Lumholtz-Baumkänguru lebt meist einzelgängerisch. Kleine, höchstens vier Exemplare zählende Fressgemeinschaften konnten beobachtet werden. Geschlechtsreife Männchen begegnen sich hochaggressiv und bekämpfen sich manchmal bis zum Tod eines der Kontrahenten.
Das Lumholtz-Baumkänguru lebt in Australien im tropischen Regenwald des nördlichen Queensland. Dort ist sein relativ kleines Verbreitungsgebiet auf die Atherton-Hochebene begrenzt.
Das Lumholtz-Baumkänguru ist ein reiner Pflanzenfresser. Es ernährt sich von Blättern und Früchten. Manchmal geht es auch in Mais- und Getreidefeldern auf Futtersuche.
Weibliche Lumholtz-Baumkängurus werden frühestens mit etwas über zwei Jahren, Männchen mit etwa viereinhalb Jahren geschlechtsreif. Die Paarungszeit ist ganzjährig. Nach einer Tragezeit von 47 bis 64 Tagen bringt das Weibchen ein Jungtier zur Welt. Das Jungtier ist circa zwei Zentimeter groß und ein bis zwei Gramm schwer. Das Jungtier krabbelt vom Geburtskanal in den Beutel und saugt sich an einer der vier Zitzen fest. Nach fünf Monaten schaut es das erste Mal aus dem Beutel. Nach 246 bis 275 Tagen verlässt es den Beutel zum ersten Mal. Die Jungtiere sind nach weiteren 87 bis 240 Tagen entwöhnt und verlassen die Mutter. Lumholtz-Baumkängurus können bis zu acht Jahre alt werden. In zoologischen Gärten überlebte bis jetzt kein Exemplar die Jugendzeit. Untersuchungen zur Fortpflanzungsbiologie fanden in großzügigen Freigehegen in ihrem natürlichen Lebensraum statt.
Das Lumholtz-Baumkänguru (Dendrolagus lumholtzi) ist eine Art aus der Familie der Kängurus. Die Art ist nach dem norwegischen Naturforscher und Ethnologen Carl Sophus Lumholtz benannt. Neben dem Bennett-Baumkänguru (Dendrolagus bennettianus) ist es eine von zwei in Australien vorkommenden Arten der Baumkängurus. Die indigene Bezeichnung der Aborigines ist Boongarry.
Lumholtz's tree-kangaroo (Dendrolagus lumholtzi) is a rare, long-tailed bear-like mammal found in rainforests in northeastern Australia. Like most tree-kangaroos (genus Dendrolagus), it lives alone in trees and feeds on plant matter.[2] It belongs to the macropod family (Macropodidae) with kangaroos, and carries its young in a pouch like other marsupials. It is threatened by climate change and diseases, and is found in the hilly, fertile Atherton Tableland in Queensland.
The species name lumholtzi is after the Norwegian explorer Carl Sofus Lumholtz (1851–1922),[3] who was the first European to record a specimen in 1883. The local indigenous Dyirbal and Yidiny language name may have been either "mabi" or "mapi".[4]
It is the smallest of all tree-kangaroos, with males weighing an average of 7.2 kg (16 lbs) and females 5.9 kg (13 lbs).[5] Its head and body length ranges from 480–650 mm, and its tail, 600–740 mm.[6] It has powerful limbs and has short, grizzled grey fur. Its muzzle, toes and tip of tail are black.
The Lumholtz's tree-kangaroos colonizes a variety of habitats, as long as they are flush with food and have stable and adaptable structural features.[7]
Lumholtz's tree-kangaroo are generally solitary animals, with the exception of male–female mating and the long, intimate mother–joey relationship. Each kangaroo maintains a "home range" and will be hostile towards a member of the same sex that enters it (the one exception seems to be non-hostile encounters between adult males and their male offspring). Thus, the male will protect his own range, and visit the ranges of the females in his group. Mating takes place in episodes of about twenty minutes, and is often quite aggressive.
The Lumholtz's tree-kangaroo is classified as near-threatened [2] by the IUCN, and authorities consider it as rare.[8] It was historically impacted by habitat loss through logging and land clearing. Currently, it is threatened by non-native diseases and by climate change, which causes temperature extremes and severe weather.[2]
In June 2019, it was reported that many Lumholtz's tree-kangaroos were going blind. Normally almost invisible in the treetops, they were being found in schools, sheds and in the middle of roads, unable to see and confused. Veterinarian Andrew Peters, from Charles Sturt University, said he had found evidence of optic nerve and brain damage, suggesting that a new viral infection was involved.
Karen Coombes, who has cared for injured tree kangaroos on her property west of Cairns for two decades, said she thought successive dry periods in the area were contributing to the eye problems. Her theory is that, because the animals only eat the leaves of the rainforest trees they inhabit, which are always fairly toxic, the drier-than-normal weather over recent years could have caused the toxins in the leaves to become more concentrated.[9] No toxin has been identified and this hypothesis remains speculative and unsubstantiated.
Other work by wildlife veterinarian, Amy Shima and wildlife biologist, Roger Martin (author of Tree-kangaroos of Australia and New Guinea), does not support these claims. Their fieldwork spanning 5 years has found no convincing evidence of widespread blindness in Lumholtz's tree-kangaroo. Working with a comparative veterinary ocular pathologist from a university in the United States, Shima has looked at nearly 100 eyes from Lumholtz's tree-kangaroo carcasses (primarily road-killed animals) and has found no evidence of widespread blindness or pathology. These findings were recently presented in a poster presentation at the international Wildlife Disease Association conference.
Lumholtz's tree-kangaroo (Dendrolagus lumholtzi) is a rare, long-tailed bear-like mammal found in rainforests in northeastern Australia. Like most tree-kangaroos (genus Dendrolagus), it lives alone in trees and feeds on plant matter. It belongs to the macropod family (Macropodidae) with kangaroos, and carries its young in a pouch like other marsupials. It is threatened by climate change and diseases, and is found in the hilly, fertile Atherton Tableland in Queensland.
Dendrolagus lumholtzi es una especie de marsupial diprotodonto de la familia de los Macropodidae. Es un canguro arborícola que vive en los bosques lluviosos de la Meseta Atherton, en Queensland, Australia. Se encuentra clasificado como "casi amenazada" por la UICN,,[2] aunque las autoridades locales lo clasifican como "rara".[3] Fue nombrado en honor del explorador noruego Carl Sofus Lumholtz (1851-1922).
Es la especie de menor tamaño de los llamados canguros arborícolas, con un peso promedio de 7,2 kg para los machos y 5,9 kg para las hembras.[4] Su cuerpo mide entre 480 y 650 mm, y su cola 600-740 mm.[5] Sus extremidades son cortas y fuertes, y están cubiertas de un pelaje gris, mientras que su hocico, pies y la punta de su cola son negras.
Es un animal mayormente solitario y nocturno, que vive en el noreste de Australia, desde 800 msnm, pasando casi toda su vida en la cúpula de los bosques.[4] Está especialmente adaptado a la vida arbórea, pudiendo saltar 3-6 metros entre ramas, usando su cola como timón. Se sabe que cuando están asustados son capaces de dejarse caer 15-18 metros hasta el suelo sin resultar heridos, en vez de intentar huir por las ramas. Se alimenta principalmente de fruta y hojas.
La especie vive en grupos pequeños de tres a cinco individuos, consistentes de machos y hembras. Cada canguro posee un territorio exclusivo, que defenderá contra otros individuos del mismo género (con la posible excepción de machos y su prole masculina). Así, un macho cuidará su territorio propio, y visitará los de las hembras de su grupo. Los apareamientos toman lugar en encuentros de unos 20 minutos, y son bastante agresivos.
Datos: Q209510
Multimedia:
Especies: Dendrolagus lumholtzi
Dendrolagus lumholtzi es una especie de marsupial diprotodonto de la familia de los Macropodidae. Es un canguro arborícola que vive en los bosques lluviosos de la Meseta Atherton, en Queensland, Australia. Se encuentra clasificado como "casi amenazada" por la UICN,, aunque las autoridades locales lo clasifican como "rara". Fue nombrado en honor del explorador noruego Carl Sofus Lumholtz (1851-1922).
Es la especie de menor tamaño de los llamados canguros arborícolas, con un peso promedio de 7,2 kg para los machos y 5,9 kg para las hembras. Su cuerpo mide entre 480 y 650 mm, y su cola 600-740 mm. Sus extremidades son cortas y fuertes, y están cubiertas de un pelaje gris, mientras que su hocico, pies y la punta de su cola son negras.
Dendrolagus lumholtzi Dendrolagus generoko animalia da. Martsupialen barruko Diprotodontia ordeneko animalia da. Macropodinae azpifamilia eta Macropodidae familian sailkatuta dago.
Dendrolagus lumholtzi Dendrolagus generoko animalia da. Martsupialen barruko Diprotodontia ordeneko animalia da. Macropodinae azpifamilia eta Macropodidae familian sailkatuta dago.
Lumholtzinpuukenguru (Dendrolagus lumholtzi) on saksalaisen Carl Lumholtzin mukaan nimetty puukenguru.
Tämän harmaan kengurun musta häntä on pitempi kuin eläimen ruumis. Sillä on terävät kynnet ja mustat käpälät. Ruumiinpituus 52-80 cm ja hännänpituus 42-93 cm.
Tämä puukenguru viettää suurimman osan ajastaan korkealla puissa, joissa se nautiskelee puiden antimia: lehtiä ja hedelmiä. Se jopa nukkuu puiden tukevilla oksilla. Tämä laji on uhanalainen, sillä hakkuut tuhoavat sen elinympäristön sademetsiä.
Australian kaakkoisosat.
Lumholtzinpuukenguru (Dendrolagus lumholtzi) on saksalaisen Carl Lumholtzin mukaan nimetty puukenguru.
Le dendrolague de Lumholtz (Dendrolagus lumholtzi ; en anglais : the Lumholtz's Tree-kangaroo) est un kangourou arboricole trouvé dans le Queensland, en Australie. Il doit son nom à l'explorateur norvégien Carl Sofus Lumholtz (1851-1922).
Avec une longueur tête-queue comprise entre 48 et 65 cm, une longue queue de 60 à 74 cm non préhensile et un poids moyen de 7,2 kg (3.7 à 10 kg) pour les mâles et de 5,9 kg (5.2 à 7 kg) pour les femelles, c'est le plus petit des kangourous arboricoles.
Il a des membres puissants, avec de fortes griffes aux pattes avant, une fourrure grise et courte. Son museau, ses pieds et l'extrémité de la queue sont noirs.
Il vit dans les forêts tropicales humides de la région du plateau d'Atherton, à plus de 300 m d'altitude, au nord du Queensland.
Il se nourrit de feuilles et de fruits.
C'est un animal solitaire, nocturne qui passe 99 % de son temps au sommet des arbres, dans la canopée. Il peut faire des bonds de 3 à 6 m entre deux branches en utilisant sa queue comme gouvernail. En cas de danger, il peut se laisser tomber d'une hauteur de 15 à 18 m sur le sol sans se blesser
Il ne semble pas y avoir de saison des amours particulières. Il n'y a qu'un petit par portée
Le dendrolague de Lumholtz (Dendrolagus lumholtzi ; en anglais : the Lumholtz's Tree-kangaroo) est un kangourou arboricole trouvé dans le Queensland, en Australie. Il doit son nom à l'explorateur norvégien Carl Sofus Lumholtz (1851-1922).
Il canguro arboricolo di Lumholtz (Dendrolagus lumholtzi Collett, 1884) è un canguro arboricolo dalla costituzione piuttosto robusta diffuso nelle foreste pluviali del Tavolato di Atherton, nel Queensland. È incluso tra le specie prossime alla minaccia[2] dalla IUCN, sebbene alcuni autori locali lo ritengano un animale raro[3]. Prende il nome dall'esploratore norvegese Carl Sofus Lumholtz (1851-1922).
È il più piccolo tra tutti i canguri arboricoli: i maschi pesano in media 7,2 kg e le femmine 5,9[4]. Il corpo misura 480–650 mm e la coda 600–740 mm[5]. Le zampe, molto muscolose, sono ricoperte da una corta pelliccia grigio-brizzolata. Il muso, le dita e l'estremità della coda sono neri.
Questo canguro arboricolo, in gran parte solitario e notturno, vive nelle foreste pluviali montane dell'Australia nord-orientale, dal livello del mare fino a un'altitudine di 800 metri e trascorre più del 99% della sua esistenza nella volta della foresta e sulle cime degli alberi[4]. È particolarmente adattato alla vita arboricola e può compiere salti di 3-6 metri da un ramo all'altro, utilizzando la coda come un timone. Quando si sente minacciato, invece di fuggire sulle cime degli alberi, preferisce gettarsi a terra: è stato visto arrivare incolume sul suolo da un'altezza di 15-18 metri. Si nutre di notte e la sua dieta è composta soprattutto da foglie e frutti.
Il canguro arboricolo di Lumholtz vive in piccoli gruppi compatti di tre-cinque esemplari, costituiti da un maschio e da femmine in età riproduttiva. Ogni canguro difende il proprio «territorio» e diviene ostile nei confronti di qualsiasi membro dello stesso genere che ne superi i confini (eccezion fatta, sembra, per i maschi dominanti nei confronti dei propri figli dello stesso sesso). Ogni maschio, quindi, protegge il proprio territorio e visita quelli delle femmine del gruppo. L'accoppiamento dura circa venti minuti ed è spesso piuttosto aggressivo.
Il canguro arboricolo di Lumholtz (Dendrolagus lumholtzi Collett, 1884) è un canguro arboricolo dalla costituzione piuttosto robusta diffuso nelle foreste pluviali del Tavolato di Atherton, nel Queensland. È incluso tra le specie prossime alla minaccia dalla IUCN, sebbene alcuni autori locali lo ritengano un animale raro. Prende il nome dall'esploratore norvegese Carl Sofus Lumholtz (1851-1922).
È il più piccolo tra tutti i canguri arboricoli: i maschi pesano in media 7,2 kg e le femmine 5,9. Il corpo misura 480–650 mm e la coda 600–740 mm. Le zampe, molto muscolose, sono ricoperte da una corta pelliccia grigio-brizzolata. Il muso, le dita e l'estremità della coda sono neri.
De Lumholtzboomkangoeroe (Dendrolagus lumholtzi) is een klimbuideldier uit het geslacht der boomkangoeroes (Dendrolagus) dat voorkomt in het regenwoud van Noordoost-Queensland van Kirrima tot Mount Spurgeon, op meer dan 800 m hoogte. In de laaglandregenwouden tussen Innisfail en Cairns is hij uitgestorven. Deze soort is niet nauw verwant aan de andere boomkangoeroes; samen met de andere Australische soort, de Bennettboomkangoeroe (D. bennettianus) en de Nieuw-Guinese grijze boomkangoeroe (D. inustus) vormt hij een primitieve groep binnen het geslacht.
De bovenkant van het lichaam is donkergrijs, de onderkant geelbruin. De voorkant van de kop is zwart; daarachter zit een lichtgrijs stuk. Ook de voeten en handen zijn zwart. De lange, ronde staart is van boven zwart en van onderen geelbruin. De kop-romplengte bedraagt 700 tot 750 mm, de staartlengte 730 tot 830 mm en het gewicht 8,0 tot 13,5 kg.
Deze kangoeroe klimt in bomen, hij is tenslotte een boomkangoeroe, maar ook op de grond is hij beweeglijk; hij springt net als andere kangoeroes. Het dier is 's nachts actief en eet bladeren. De dag brengt hij door in vegetatie of op een tak. Vrouwtjes krijgen elke twee jaar een jong.
De Lumholtzboomkangoeroe (Dendrolagus lumholtzi) is een klimbuideldier uit het geslacht der boomkangoeroes (Dendrolagus) dat voorkomt in het regenwoud van Noordoost-Queensland van Kirrima tot Mount Spurgeon, op meer dan 800 m hoogte. In de laaglandregenwouden tussen Innisfail en Cairns is hij uitgestorven. Deze soort is niet nauw verwant aan de andere boomkangoeroes; samen met de andere Australische soort, de Bennettboomkangoeroe (D. bennettianus) en de Nieuw-Guinese grijze boomkangoeroe (D. inustus) vormt hij een primitieve groep binnen het geslacht.
De bovenkant van het lichaam is donkergrijs, de onderkant geelbruin. De voorkant van de kop is zwart; daarachter zit een lichtgrijs stuk. Ook de voeten en handen zijn zwart. De lange, ronde staart is van boven zwart en van onderen geelbruin. De kop-romplengte bedraagt 700 tot 750 mm, de staartlengte 730 tot 830 mm en het gewicht 8,0 tot 13,5 kg.
Deze kangoeroe klimt in bomen, hij is tenslotte een boomkangoeroe, maar ook op de grond is hij beweeglijk; hij springt net als andere kangoeroes. Het dier is 's nachts actief en eet bladeren. De dag brengt hij door in vegetatie of op een tak. Vrouwtjes krijgen elke twee jaar een jong.
Multimedia w Wikimedia Commons Drzewiak jasnolicy[3], dawniej: drzewiak Lumholtza[4] (Dendrolagus lumholtzi) – gatunek torbacza z rodziny kangurowatych (Macropodidae).
Występuje w lasach deszczowych północno-wschodniego Queenslandu.
Długość ciała 48-59 cm, ogona 60-74 cm, masa od 3 do 10 kg. Wierzch ciała czarnobrązowy nakrapiany, boki i spód jaśniejsze. Przednie nogi są długie i muskularne, stopy krótkie i szerokie. Ogon długi, o czarnej stronie spodniej.
Dendrolagus lumholtzi są aktywne w nocy. Dzień spędzają śpiąc na gałęziach w koronach drzew. Odżywiają się głównie liśćmi, ale też różnymi owocami, korą drzew i młodymi pędami drzew i krzewów. Potrafi przeskoczyć z drzewa na drzewo na odległość 9 metrów, ogon służy mu jako ster i narząd równowagi. Żyje w małych grupach. Prawdopodobnie na świat przychodzi tylko jedno młode.
Drzewiak jasnolicy, dawniej: drzewiak Lumholtza (Dendrolagus lumholtzi) – gatunek torbacza z rodziny kangurowatych (Macropodidae).
Dendrolagus lumholtzi é uma espécie de marsupial da família Macropodidae. Endêmica da Austrália.
Dendrolagus lumholtzi é uma espécie de marsupial da família Macropodidae. Endêmica da Austrália.
Dendrolagus lumholtzi[2][3][4][5] är en pungdjursart som beskrevs av Robert Collett 1884. Dendrolagus lumholtzi ingår i släktet trädkänguruer och familjen kängurudjur.[6][7] Inga underarter finns listade.[6]
Arten når en kroppslängd (huvud och bål) av 52 till 71 cm och en svanslängd av 47 till 80 cm. Hannar är med en genomsnittlig vikt av 8,6 kg tyngre än honor som väger omkring 7,05 kg. Ansiktet är svartgrå och kring ansiktet förekommer en ljus brunaktig krans. Pälsen på ovansidan är gråbrun med svarta skuggor och undersidans päls är allmänt ljusare.[8]
Pungdjuret förekommer på östra sidan av Kap Yorkhalvön (Australien). Arten vistas i låglandet och i upp till 1 600 meter höga bergstrakter. Habitatet utgörs av olika slags skogar och delvis jordbruksmark.[1]
Individerna vilar på dagen gömda i täta bladansamlingar eller mellan klätterväxter som ligger 6 till 13 meter över marken. Födan utgörs av blad, blommor och frukter. Dendrolagus lumholtzi kan leva ensam eller i små flockar som består av en hanne, några honor och ungdjur. Allmänt har hannar 2 hektar stora revir och honornas territorier är cirka 0,7 hektar stora med överlappningar. Enda undantaget är hannar som inte tillåter vuxna artfränder av samma kön i reviret.[8]
Honor kan vara brunstiga under alla årstider. Efter dräktigheten som varar 42 till 48 dagar föds en unge som lever 35 till 39 veckor i moderns pung (marsupium). Ungar som lämnade pungen diar sin mor ytterligare en till två månader. Sedan stannar de ungefär två år i moderns revir. Könsmognaden infaller för honor efter 2 år och för hannar efter 4,5 år. En fördröjd dräktighet är inte känd för arten.[8]
Exemplar som tillfällig vistas på marken kan falla offer för fri gående hundar. Flera exemplar dödas när de korsar en väg. Det begränsade utbredningsområde gör arten känslig för förändringar. IUCN kategoriserar arten globalt som nära hotad (NT).[1]
Pungdjurets utbredningsområde ingår i världsarvet Queenslands våta tropiker.[1] I några jordbruksområdet återskapades skogar. Särskilda broar eller tunnlar för djur minskade antalet trafikolyckor.[8]
Dendrolagus lumholtzi i Port Douglas zoo.
Skelett.
Wikimedia Commons har media som rör Dendrolagus lumholtzi.
Wikispecies har information om Dendrolagus lumholtzi.
Dendrolagus lumholtzi är en pungdjursart som beskrevs av Robert Collett 1884. Dendrolagus lumholtzi ingår i släktet trädkänguruer och familjen kängurudjur. Inga underarter finns listade.
Dendrolagus lumholtzi là một loài chuột túi cây trong họ Macropodidae, bộ Hai răng cửa. Loài này được Collett mô tả năm 1884.[2]
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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. Dendrolagus lumholtzi là một loài chuột túi cây trong họ Macropodidae, bộ Hai răng cửa. Loài này được Collett mô tả năm 1884.
Кенгуру Люмхольтца[1], или кенгуру Лумхольтца[2] (лат. Dendrolagus lumholtzi) — древесный кенгуру. Назван в честь норвежского натуралиста Карла Люмхольтца (1851—1922)[3].
Живёт во влажных тропических лесах (часто и во вторичных лесах) на северо-востоке штата Квинсленд, Австралия на высоте от 0 до 1600 метров над уровнем моря. Ведёт ночной образ жизни, скрытен и территориальный. Питается фруктами и листьями различных растений тропического леса. Верхние части тела сероватые или оливково-желто-коричневые, низ белый, стопы черноватые.
Подсчитано, что кенгуру Люмхольтца проводит только 2 % своего времени на земле, остальное время в среднем и высоком ярусах древесного покрова. Относительно солитарный. Домашние ареалы самок перекрываются с домашними ареалами самцов. Несколько самок с одним малышом могут вместе находиться в неволе, но двое самцов в присутствии самки будут яростно сражаться.
Вид обитает на территории влажных лесов Квинсленда, признанных ЮНЕСКО Всемирным наследием. В сельскохозяйственных районах, в которых живёт вид, основными угрозами являются хищничество собак и гибель на дорогах.
Кенгуру Люмхольтца, или кенгуру Лумхольтца (лат. Dendrolagus lumholtzi) — древесный кенгуру. Назван в честь норвежского натуралиста Карла Люмхольтца (1851—1922).
Живёт во влажных тропических лесах (часто и во вторичных лесах) на северо-востоке штата Квинсленд, Австралия на высоте от 0 до 1600 метров над уровнем моря. Ведёт ночной образ жизни, скрытен и территориальный. Питается фруктами и листьями различных растений тропического леса. Верхние части тела сероватые или оливково-желто-коричневые, низ белый, стопы черноватые.
Подсчитано, что кенгуру Люмхольтца проводит только 2 % своего времени на земле, остальное время в среднем и высоком ярусах древесного покрова. Относительно солитарный. Домашние ареалы самок перекрываются с домашними ареалами самцов. Несколько самок с одним малышом могут вместе находиться в неволе, но двое самцов в присутствии самки будут яростно сражаться.
Вид обитает на территории влажных лесов Квинсленда, признанных ЮНЕСКО Всемирным наследием. В сельскохозяйственных районах, в которых живёт вид, основными угрозами являются хищничество собак и гибель на дорогах.
룸홀츠나무타기캥거루(Dendrolagus lumholtzi)는 캥거루과에 속하는 나무타기캥거루의 일종으로 오스트레일리아 퀸즐랜드 주 애덜톤 테이블랜드의 우림 지역에서 발견된다. 국제 자연 보전 연맹(IUCN)은 관심대상종(LC, least concern species)으로 분류하지만,[2] 현지 전문가들은 희귀종으로 분류하기도 한다.[3] 학명은 1883년 이 종의 표본을 처음 발견한 노르웨이 탐험가 룸홀츠(Carl Sofus Lumholtz, 1851–1922)의 이름을 따서 지었다.[4]
룸홀츠나무타기캥거루(Dendrolagus lumholtzi)는 캥거루과에 속하는 나무타기캥거루의 일종으로 오스트레일리아 퀸즐랜드 주 애덜톤 테이블랜드의 우림 지역에서 발견된다. 국제 자연 보전 연맹(IUCN)은 관심대상종(LC, least concern species)으로 분류하지만, 현지 전문가들은 희귀종으로 분류하기도 한다. 학명은 1883년 이 종의 표본을 처음 발견한 노르웨이 탐험가 룸홀츠(Carl Sofus Lumholtz, 1851–1922)의 이름을 따서 지었다.
