The mahogany glider (Petaurus gracilis ) is an endangered gliding possum native to a small region of coastal Queensland in Australia.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
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FolivoreIn zoology, a folivore is a herbivore that specializes in eating leaves. Mature leaves contain a high proportion of hard-to-digest cellulose, less ...
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NectarivoreIn zoology, a nectarivore is an animal that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of the sugar-...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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AltricialAltricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
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GlidingGliding flight is heavier-than-air flight without the use of thrust and is employed by gliding animals. Birds in particular use gliding flight to m...
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PollinatorA pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilizat...
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TerritorialA territory is a sociographical area that which an animal consistently defends against the conspecific competition (or, occasionally, against anima...
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ViviparousAmong animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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MonogamyMonogamy is a form of relationship in which both the male and the female has only one partner. This pair may cohabitate in an area or territory for...
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SolitaryNo
Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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Gliding AnimalsFirst described in 1883, these animals were considered subspecies of squirrel glider for about a century until 1989 when they were ‘rediscovered’ in the wild. Then, in 1993, the examination of skins and skulls of old and newly discovered specimens increased the level of this species. Mahogany gliders exhibit a thin gliding membrane, covered with fur and extending from their front feet to the ankle of their hind feet. This gliding membrane looks like a wavy line, stretching along the animal's body when not in use. Their feet resemble hands in their form and shape. Meanwhile, the hind feet of these animals have enlarged, opposable big toes. The tail is long and densely covered with fur. Mahogany gliders use their tail to balance when gliding.
The range of Mahogany gliders is restricted to a tiny coastal area between Ingham and Tully (Northern Queensland, Australia). They inhabit open forests, dominated by a variety of flowering plants, which they consume throughout the year.
Mahogany gliders are generally solitary and nocturnal animals. Each individual has their own home range, which can be up to 23 hectares. Each glider uses more than 10 dens during a season. Their dens are typically located in hollows in Eucalyptus and bloodwood trees and paved with a thick underlay of leaves. During the daytime hours, the animals sleep in these dens. They spend their nighttime hours looking for food within their territory. Males and females forage separately and sleep in different dens. Mahogany gliders are tree-dwelling animals. When moving among the treetops, they usually glide with their membrane outstretched. These animals are able to glide up to 60 meters at a time. Mahogany gliders are extremely silent species, remaining virtually silent even when defending their home range from intruders. They usually vocalize only once during the night, giving out a nasal "na-when" sound for less than 10 minutes before they fall silent again.
These nectarivorous and folivorous animals have a rather diverse diet, consisting of insects, fruits, grass, nectar, and pollen. Mahogany gliders are also known to favor tree sap, and particularly, the sap of some eucalypts.
Mahogany gliders are usually monogamous (one male mates with one female exclusively), although extra-pair mating has been observed. Mahogany gliders breed from April to October. Females usually yield a single litter of 1-2 young per year. However, sometimes the second litter may be produced, when the first litter is lost before coming out of the pouch. Mother gliders are very careful with their young, carrying them in their pouch for 4-5 months when young are weaned. Reproductive maturity is typically reached between 12 and 18 months of age.
Becoming independent, young gliders disperse to find their own territories and often face a lack of favorable habitat. Furthermore, the primary life condition for these animals is dense vegetation cover, which is affected by roads, railway lines, electric power lines as well as land clearing. Mahogany gliders are entangled in barbed wire fencing, hit on roads, and hunted by cats. However, the most notable threat to the overall population of this species is the degradation, destruction, and fragmentation of their natural habitat.
According to the IUCN Red List, no estimate of population size is available for the Mahogany glider. Currently, this species is classified as Endangered (EN), and its numbers are decreasing.
Consuming pollen and nectar of various flowering plants, Mahogany gliders transfer pollen on their fur and disperse it throughout the area of their range. These animals serve as the key pollinators of eucalyptus and banksia.