Tate's triok
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Tate's triok, also known as the Fergusson Island striped possum (''Dactylopsila tatei''), is a species of
marsupial Marsupials are any members of the mammalian infraclass Marsupialia. All extant marsupials are endemic to Australasia, Wallacea and the Americas. A distinctive characteristic common to most of these species is that the young are carried in a ...
in the family
Petauridae Petauridae is a family of possums containing 13 species: four species of trioks and striped possum (genus ''Dactylopsila''), eight species of wrist-winged glider (genus ''Petaurus''), and Leadbeater's possum (''Gymnobelideus leadbeateri''), whic ...
. It is
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...
to
Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
. Its natural habitat is subtropical or tropical dry forests.


Lifestyle

Tate's triok are arboreal and are rarely found on the forest floor. The species tend to stay in their dry leaf nests in hollows of trees during the day. Tate's triok is also nocturnal and only come out at night to find food. The species are insectivores but can occasionally be found chewing on tree bark or eating fruits and leaves.


Description

Tate's triok is quite small, measuring from 12-31 inches long and weighing between 3-25 ounces. The species usually has black fur with two white stripes that run along its back, resembling a skunk. They also have a short tail with a white coloration at the tip.


Key Features

Tate's triok has many important features that better suit its lifestyle. One feature is that they have an elongated fourth finger, which is used to dig out insect larvae that is burrowed inside the wood. Their fourth finger can also be used to grasp branches in order to keep the rest of the paw open in case they have to manipulate larger prey. In order to find the larvae, the striped possum taps on the wood with a specialized structure that is found on its wrist while listening for the hollow areas of the tree. Tate's triok also has several glands that can secrete chemicals from their body. These chemicals that are produced can create a strong and unpleasant odor which can ward off predators.


Discovery

The first specimen of Tate's triok was found in 1935 by Fred Shaw Mayer. Following its first discovery, no expedition could find the organism from 1950-1980, making many believe that the species was extinct. In 1992, another specimen was found, sleeping inside a tree. In order to obtain the animal, the hunter cut down the tree, which resulted in the animal dying.


Behavior

Tate's triok do not form social groups. The species tend to live alone in their trees and can become territorial against other members of their species. Tate's triok will use their unpleasant odor to warn other striped possums to stay out of their area.


Reproduction

Tate's triok, along with other marsupials, do not have well-developed placenta and so their young are born underdeveloped. In order for the organism to survive, the young has to continue to grow in their mother's pouch for a certain amount of time after birth. Each mother only has two teats and so only two offspring can be born at a time to ensure that both babies would get enough nutrients to survive.


Reasons for Endangerment

There can be multiple reasons for the organism's small species number. The organism doesn't have a very large habitat and previous studies have indicated that the species is limited to only this small area in West Fergusson. This small area of land is also used frequently in logging by businesses or hunters. This decrease in trees is lowering the suitable habitats for the Tate's triok which may be lowering the population number as a whole.


References

{{Taxonbar, from=Q209786 Possums Mammals of Papua New Guinea Mammals described in 1952 Taxonomy articles created by Polbot Taxa named by Eleanor Mary Ord Laurie