Difference between revisions of "Possum" - New World Encyclopedia

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:''For the Western Hemisphere marsupial, see [[opossum]].''
 
:''For the Western Hemisphere marsupial, see [[opossum]].''
 
{{Taxobox
 
{{Taxobox
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| image = Brushtail possum.jpg
 
| image = Brushtail possum.jpg
 
| image_width = 240px
 
| image_width = 240px
−
| image_caption = [[Common brushtail possum]]<br>(''Trichosurus vulpecula'')
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| image_caption = [[Common brushtail possum]]<br/>''(Trichosurus vulpecula)''
 
| regnum = [[Animal]]ia
 
| regnum = [[Animal]]ia
 
| phylum = [[Chordate|Chordata]]
 
| phylum = [[Chordate|Chordata]]
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| ordo = [[Diprotodontia]]
 
| ordo = [[Diprotodontia]]
 
| subordo = '''Phalangeriformes'''
 
| subordo = '''Phalangeriformes'''
−
| subordo_authority = [[Szalay]] in [[Archer (biologist)|Archer]], [[1982]]
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| subordo_authority = [[Szalay]] in [[Archer (biologist)|Archer]], 1982
 
| subdivision_ranks = [[Superfamily|Superfamilies]] and [[Family (biology)|Families]]
 
| subdivision_ranks = [[Superfamily|Superfamilies]] and [[Family (biology)|Families]]
 
| subdivision =  
 
| subdivision =  
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*[[Acrobatidae]]
 
*[[Acrobatidae]]
 
}}
 
}}
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'''Possum''' is the common name for any of the small- to medium-sized [[arboreal]] [[marsupial]]s comprising the [[mammal]]ian suborder '''Phalangeriformes''' of the order Diprotodontia and native to [[Australia]], [[New Guinea]], and [[Sulawesi]] (and introduced to [[New Zealand]]). Possums are characterized by [[nocturnal]] and [[omnivorous]] behaviors, a long tail, woolly fur, and syndactylous hind feet (united by skin at the top joint but divided at the claws). Some limit the name possum to the members of the family Phalangeridae, a group that also includes mammals with the common name of cuscus. In all, there are about 64 species of possums spread over six families.
+
'''Possum''' is the common name for any of the small- to medium-sized [[arboreal]] [[marsupial]]s comprising the [[mammal]]ian suborder '''Phalangeriformes''' of the order Diprotodontia and native to [[Australia]], [[New Guinea]], and [[Sulawesi]] (and introduced to [[New Zealand]]). Possums are characterized by [[nocturnal]] and [[omnivorous]] behaviors, a long tail, woolly fur, and syndactylous hind feet (united by skin at the top joint but divided at the claws). Some limit the name possum to the members of the family Phalangeridae, a group that also includes mammals with the common name of cuscus. In all, there are about 64 species in Phalangeriformes, spread over six families.
  
−
A similar group of [[marsupial]] mammals belonging to the order [[Didelphimorphia]], and found in the [[Western Hemisphere]], are known by the common name of '''opossum'''. The term possum also is used in North America as a diminutive for the Virginia opossum.  
+
A similar group of [[marsupial]] mammals belonging to the order [[Didelphimorphia]], and found in the [[Western Hemisphere]], are known by the common name of [[opossum]]. The term possum also is used in North America as a diminutive for the Virginia opossum.  
  
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==Overview and desription==
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In their natural environment, possums provide important ecological values as part of [[food chain]]s and in seed dispersal. Possums consume such foods as plant matter ([[leaf|leaves]], [[fruit]], [[flower]]s), [[insect]]s, and bird eggs, and are consumed by such [[carnivore]]s as [[owl]]s, [[dingo]]es, [[python]]s, and [[fox]]es. For humans, they also were an important part of the [[Aborigine|Aboriginal]] diet and used for Aboriginal clothing.
−
Phalangeriformes is one of three suborders within the order Diprotodontia. In addition to the possums, the order Diprotodontia includes the [[kangaroo]]s, [[Wallaby|wallabies]], [[koala]], [[wombat]]s, and many others. Extant diprotodonts are restricted to [[Australasia]]. There are two key anatomical features that, in combination, identify diprotodontia. Members of the order are, first, ''diprotodont'' (meaning "two front teeth"): they have a pair of large, procumbent incisors on the lower jaw, a common feature of many early groups of mammals and mammaliforms. The diprotodont jaw is short, usually with 3 pairs of upper incisors and no lower canines. The second trait distinguishing diprotodonts is ''syndactyly'', a fusing of the second and third digits of the foot up to the base of the claws, which leaves the claws themselves separate.
 
  
−
The possums, the common name for members of Phalangeriformes, resemble in appearance the [[opossum]]s of [[the Americas]], and it is from these that their name is derived. (The name is from [[Algonquian]] ''wapathemwa'', not [[Greek language|Greek]] or [[Latin]], so the plural is ''possums'', not ''possa''.) ''Possum'' is also used in North America as a short form of ''opossum''. Opossums, of which there are more than 60 species, are characterized by a long, naked tail; a long, pointed snout; opposable thumbs in the hands and feet; and ears that are naked (Grzimek et al. 2004).
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However, the introduction of the common brushtail possum to New Zealand, in an effort to establish a [[fur]] industry, has been an [[ecology|ecological]] disaster, as they have no natural predators. As an  [[invasive species]] in New Zealand, their population numbers have exploded, causing damage to the native flora and fauna and serving as a carrier of bovine [[tuberculosis]].
 +
 
 +
==Overview and description==
 +
Phalangeriformes is one of three suborders within the order Diprotodontia. In addition to the possums, the order Diprotodontia includes the [[kangaroo]]s, [[Wallaby|wallabies]], [[koala]], [[wombat]]s, and many others. Extant diprotodonts are restricted to [[Australasia]]. There are two key anatomical features that, in combination, identify diprotodontia. Members of the order are, first, ''diprotodont'' (meaning "two front teeth"): they have a pair of large, procumbent incisors on the lower jaw, a common feature of many early groups of mammals and mammaliforms. The diprotodont jaw is short, usually with three pairs of upper incisors and no lower canines. The second trait distinguishing diprotodonts is ''syndactyly'', a fusing of the second and third digits of the foot up to the base of the claws, which leaves the claws themselves separate.
 +
 
 +
The possums, the common name for members of Phalangeriformes, resemble in appearance the [[opossum]]s of [[the Americas]], and it is from these that their name is derived. (The name is from [[Algonquian]] ''wapathemwa'', not [[Greek language|Greek]] or [[Latin]], so the plural is ''possums'', not ''possa''.) (Possum is also used in North America as a short form of opossum.) The Western Hemisphere opossums, of which there are more than 60 species, are characterized by a long, naked tail; a long, pointed snout; opposable thumbs in the hands and feet; and ears that are naked (Grzimek et al. 2004).
  
 
Possums are small marsupials with brown or gray fur, ranging in size and weight from the length of a finger or 170 grams (6 ounces) ([[pygmy possum]]s and [[wrist-winged glider]]s), to the length of 120 centimeters (four feet) or 14.5 kilograms (32 pounds) (brushtails and ringtails). In general, though, the larger possums are about the same size as a well-fed domestic cat. The two most common species of possums, the [[Common Brushtail Possum|common brushtail]] and [[Common Ringtail Possum|common ringtail]], are also among the largest. The possum's rank odor is due to its large musk glands located behind each ear.
 
Possums are small marsupials with brown or gray fur, ranging in size and weight from the length of a finger or 170 grams (6 ounces) ([[pygmy possum]]s and [[wrist-winged glider]]s), to the length of 120 centimeters (four feet) or 14.5 kilograms (32 pounds) (brushtails and ringtails). In general, though, the larger possums are about the same size as a well-fed domestic cat. The two most common species of possums, the [[Common Brushtail Possum|common brushtail]] and [[Common Ringtail Possum|common ringtail]], are also among the largest. The possum's rank odor is due to its large musk glands located behind each ear.
  
−
All possums are [[nocturnal]] and [[omnivorous]], hiding in a nest in a hollow tree during the day and coming out during the night to forage for food. They fill much the same role in the Australian ecosystem that [[squirrel]]s fill in the northern hemisphere and are broadly similar in appearance.
+
All possums are [[nocturnal]] and [[omnivorous]], hiding in a nest in a hollow tree during the day and coming out during the night to forage for food. They fill much the same role in the Australian ecosystem that [[squirrel]]s fill in the northern hemisphere and are broadly similar in appearance.  
  
 
The Phalangeriformes suborder is divided into two superfamilies, Petauroidea (ringtail possums and gliders) and Phalangeroidea (brushtail possums, cuscuses, and pygmy possums). There are four families in the Petauroidea superfamily: Acrobatidae (feathertail gliders and pyrmy gliders), Petauridae (gliders, Leadbeater's possum, and striped possum), Pseudocheiridae (ringtail possums), and Tarsipedidae (honey possum). There are two families in the Phalangeroidea superfamily: Burramyidae (pygmy possums) and Phalangeridae (brushtail possums and cuscuses) (Myers et al. 2008).
 
The Phalangeriformes suborder is divided into two superfamilies, Petauroidea (ringtail possums and gliders) and Phalangeroidea (brushtail possums, cuscuses, and pygmy possums). There are four families in the Petauroidea superfamily: Acrobatidae (feathertail gliders and pyrmy gliders), Petauridae (gliders, Leadbeater's possum, and striped possum), Pseudocheiridae (ringtail possums), and Tarsipedidae (honey possum). There are two families in the Phalangeroidea superfamily: Burramyidae (pygmy possums) and Phalangeridae (brushtail possums and cuscuses) (Myers et al. 2008).
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Cuscus is the common name generally given to the species within four genera of Phalangeridae: ''Ailurops'', ''Phalanger'', ''Spilocuscus'', and ''Strigocuscus''.
 
Cuscus is the common name generally given to the species within four genera of Phalangeridae: ''Ailurops'', ''Phalanger'', ''Spilocuscus'', and ''Strigocuscus''.
  
 +
==Interaction with humans==
 +
The possum has been a part of [[Australia]]n culture and folklore since the original indigenous inhabitants of the country. [[Australian Aborigine]]s once used possum hides while playing the traditional game of [[Marn Grook]]. [[Possum-skin cloak]]s were important clothing for Aborigines from the south-east, as well as being important clan heirlooms.
  
 +
Possums are commonly found in suburban areas, where they are often considered pests owing to their habit of eating [[fruit]], [[vegetable]]s, [[flower]]s and tender young shoots from gardens, and nesting in roofs. The loud hissing, crackling territorial call of the male common brushtail may also be a problem for suburban residents. Natural deterrents that play upon the possum's acute sense of smell are often employed to discourage them. These include cloves of [[garlic]], [[camphor]], or [[naphthalene]].
  
 +
As a native species in Australia, possums are protected by Australian regulations, even when they reside in urban neighborhoods, and cannot be baited. They cannot be killed as pests, to the irritation of many homeowners, and if captured, the regulations stipulate that they must be released within a small radius of that locality, since they are territorial creatures. Preventative measures such as blocking off their access to the roof spaces or building a possum nesting box for an alternative home are instead recommended.
  
−
 
+
Although the common brushtail and (to a lesser extent) ringtail possums have adapted well to the urban environment, many of the lesser-known species are reduced in number, threatened, or [[endangered species|endangered]].
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
 
 
−
==Interaction with humans==
 
−
The animal has been a part of Australian culture and folklore since the original indigenous inhabitants of the country. [[Aboriginal Australians]] once used possum hides whilst playing the traditional game of [[Marn Grook]]. [[Possum-skin cloak]]s were important clothing for Aborigines from the south-east, as well as being important clan heirlooms.
 
−
 
 
−
Possums are commonly found in suburban areas, where they are often considered pests owing to their habit of eating fruit, vegetables, flowers and tender young shoots from gardens, and nesting in roofs. The loud hissing, crackling territorial call of the male Common Brushtail may also be a problem for suburban residents. Natural deterrents which play upon the possum's acute sense of smell are often employed to discourage them. These include cloves of garlic, [[camphor]] or [[naphthalene]]. As a native species in Australia, possums are protected by Australian regulations, even when they reside in urban neighbourhoods, and cannot be baited. They cannot be killed as pests, to the irritation of many homeowners, and if captured, the regulations stipulate that they must be released within a small radius of that locality since they are territorial creatures. Preventative measures such as blocking off their access to the roof spaces or building a possum nesting box for an alternative home are instead recommended.
 
−
 
 
−
Although the Common Brushtail and (to a lesser extent) ringtail possums have adapted well to the urban environment, many of the lesser-known species are reduced in number, threatened, or [[endangered species|endangered]].
 
  
 
==Introduction into New Zealand==
 
==Introduction into New Zealand==
−
The [[Common Brushtail Possum]] was introduced to [[New Zealand]] by European settlers in an attempt to establish a [[fur]] industry.
+
The [[common brushtail possum]] was introduced to [[New Zealand]] by European settlers in an attempt to establish a [[fur]] industry.
  
−
They soon escaped into the wild where they have thrived as an [[invasive species]] with great numbers: around 60 million individuals estimated. There are no native predators of the possum in New Zealand. There have been numerous attempts to eradicate them because of the damage they do to native trees and wildlife, as well as acting as a carrier of bovine [[tuberculosis]]. For New Zealand, the introduction of possums has resulted in as much of an ecological disaster as the introduction of [[rabbit (ecology)|rabbits]] has been in Australia.{{Fact|date=June 2008}}
+
They soon escaped into the wild where they have thrived as an [[invasive species]] with great numbers: around 60 million individuals are estimated to live in New Zealand. There are no native predators of the possum in New Zealand. There have been numerous attempts to eradicate them because of the damage they do to native trees and wildlife, as well as acting as a carrier of bovine [[tuberculosis]]. For New Zealand, the introduction of possums has resulted in as much of an ecological disaster as the introduction of [[rabbit (ecology)|rabbits]] has been in Australia.
  
 
==Classification==
 
==Classification==
−
About two-thirds of Australian marsupials belong to the [[Order (biology)|order]] [[Diprotodontia]], which is split into three [[suborder]]s: the [[Vombatiformes]] ([[wombat]]s and the [[Koala]], 4 species in total); the large and diverse [[Phalangeriformes]] (the possums and gliders) and [[Macropodiformes]] ([[kangaroo]]s, [[potoroo]]s, [[wallaby|wallabies]] and the [[Musky Rat-kangaroo]]).
+
About two-thirds of Australian [[marsupial]]s belong to the [[Order (biology)|order]] [[Diprotodontia]], which is split into three [[suborder]]s: the [[Vombatiformes]] ([[wombat]]s and the [[koala]], four species in total); the large and diverse [[Phalangeriformes]] (the possums), and [[Macropodiformes]] ([[kangaroo]]s, [[potoroo]]s, [[wallaby|wallabies]], and the [[musky rat-kangaroo]]).
  
−
* '''Suborder PHALANGERIFORMES''': possums, gliders and allies
+
* '''Suborder PHALANGERIFORMES''': possums, gliders, and allies
 
** Superfamily [[Phalangeroidea]]
 
** Superfamily [[Phalangeroidea]]
 
*** Family [[Burramyidae]]: pygmy possums
 
*** Family [[Burramyidae]]: pygmy possums
 
**** Genus ''[[Burramys]]''
 
**** Genus ''[[Burramys]]''
−
***** [[Mountain Pygmy Possum]], ''Burramys parvus''
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***** [[Mountain pygmy possum]], ''Burramys parvus''
 
**** Genus ''[[Cercartetus]]''
 
**** Genus ''[[Cercartetus]]''
−
***** [[Long-tailed Pygmy Possum]], ''Cercartetus caudatus''
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***** [[Long-tailed pygmy possum]], ''Cercartetus caudatus''
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***** [[Southwestern Pygmy Possum]], ''Cercartetus concinnus''
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***** [[Southwestern pygmy possum]], ''Cercartetus concinnus''
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***** [[Tasmanian Pygmy Possum]], ''Cercartetus lepidus''
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***** [[Tasmanian pygmy possum]], ''Cercartetus lepidus''
−
***** [[Eastern Pygmy Possum]], ''Cercartetus nanus''
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***** [[Eastern pygmy possum]], ''Cercartetus nanus''
 
*** Family [[Phalangeridae]]: brushtail possums and cuscuses
 
*** Family [[Phalangeridae]]: brushtail possums and cuscuses
 
**** Subfamily [[Ailuropinae]]
 
**** Subfamily [[Ailuropinae]]
 
***** Genus ''[[Ailurops]]''
 
***** Genus ''[[Ailurops]]''
−
****** [[Talaud Bear Cuscus]], ''Ailurops melanotis''
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****** [[Talaud bear cuscus]], ''Ailurops melanotis''
−
****** [[Sulawesi Bear Cuscus]], ''Ailurops ursinus''
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****** [[Sulawesi bear cuscus]], ''Ailurops ursinus''
 
**** Subfamily [[Phalangerinae]]
 
**** Subfamily [[Phalangerinae]]
 
***** Tribe [[Phalangerini]]
 
***** Tribe [[Phalangerini]]
 
****** Genus ''[[Phalanger]]''
 
****** Genus ''[[Phalanger]]''
−
******* [[Gebe Cuscus]], ''Phalanger alexandrae''
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******* [[Gebe cuscus]], ''Phalanger alexandrae''
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******* [[Mountain Cuscus]], ''Phalanger carmelitae''
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******* [[Mountain cuscus]], ''Phalanger carmelitae''
−
******* [[Ground Cuscus]], ''Phalanger gymnotis''
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******* [[Ground cuscus]], ''Phalanger gymnotis''
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******* [[Eastern Common Cuscus]], ''Phalanger intercastellanus''
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******* [[Eastern common cuscus]], ''Phalanger intercastellanus''
−
******* [[Woodlark Cuscus]], ''Phalanger lullulae''
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******* [[Woodlark cuscus]], ''Phalanger lullulae''
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******* [[Blue-eyed Cuscus]], ''Phalanger matabiru''
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******* [[Blue-eyed cuscus]], ''Phalanger matabiru''
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******* [[Telefomin Cuscus]], ''Phalanger matanim''
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******* [[Telefomin cuscus]], ''Phalanger matanim''
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******* [[Southern Common Cuscus]], ''Phalanger mimicus''
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******* [[Southern common cuscus]], ''Phalanger mimicus''
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******* [[Northern Common Cuscus]], ''Phalanger orientalis''
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******* [[Northern common cuscus]], ''Phalanger orientalis''
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******* [[Ornate Cuscus]], ''Phalanger ornatus''
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******* [[Ornate cuscus]], ''Phalanger ornatus''
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******* [[Rothschild's Cuscus]], ''Phalanger rothschildi''
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******* [[Rothschild's cuscus]], ''Phalanger rothschildi''
−
******* [[Silky Cuscus]], ''Phalanger sericeus''
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******* [[Silky cuscus]], ''Phalanger sericeus''
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******* [[Stein's Cuscus]], ''Phalanger vestitus''
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******* [[Stein's cuscus]], ''Phalanger vestitus''
 
****** Genus ''[[Spilocuscus]]''
 
****** Genus ''[[Spilocuscus]]''
−
******* [[Admiralty Island Cuscus]], ''Spilocuscus kraemeri''
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******* [[Admiralty Island cuscus]], ''Spilocuscus kraemeri''
−
******* [[Common Spotted Cuscus]], ''Spilocuscus maculatus''
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******* [[Common spotted cuscus]], ''Spilocuscus maculatus''
−
******* [[Waigeou Cuscus]], ''Spilocuscus papuensis''
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******* [[Waigeou cuscus]], ''Spilocuscus papuensis''
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******* [[Black-spotted Cuscus]], ''Spilocuscus rufoniger''
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******* [[Black-spotted cuscus]], ''Spilocuscus rufoniger''
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******* [[Blue-eyed Spotted Cuscus]], ''Spilocuscus wilsoni''
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******* [[Blue-eyed spotted cuscus]], ''Spilocuscus wilsoni''
 
***** Tribe [[Trichosurini]]
 
***** Tribe [[Trichosurini]]
 
****** Genus ''[[Strigocuscus]]''
 
****** Genus ''[[Strigocuscus]]''
−
******* [[Sulawesi Dwarf Cuscus]], ''Strigocuscus celebensis''
+
******* [[Sulawesi dwarf cuscus]], ''Strigocuscus celebensis''
−
******* [[Banggai Cuscus]], ''Strigocuscus pelegensis''
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******* [[Banggai cuscus]], ''Strigocuscus pelegensis''
 
****** Genus ''[[Trichosurus]]''
 
****** Genus ''[[Trichosurus]]''
−
******* [[Northern Brushtail Possum]], ''Trichosurus arnhemensis''
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******* [[Northern brushtail possum]], ''Trichosurus arnhemensis''
−
******* [[Short-eared Possum]], ''Trichosurus caninus''
+
******* [[Short-eared possum]], ''Trichosurus caninus''
−
******* [[Mountain Brushtail Possum]], ''Trichosurus cunninghami''
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******* [[Mountain brushtail possum]], ''Trichosurus cunninghami''
−
******* [[Coppery Brushtail Possum]], ''Trichosurus johnstonii''
+
******* [[Coppery brushtail possum]], ''Trichosurus johnstonii''
−
******* [[Common Brushtail Possum]] ''Trichosurus vulpecula''
+
******* [[Common brushtail possum]] ''Trichosurus vulpecula''
 
****** Genus ''[[Wyulda]]''
 
****** Genus ''[[Wyulda]]''
−
******* [[Scaly-tailed Possum]], ''Wyulda squamicaudata''
+
******* [[Scaly-tailed possum]], ''Wyulda squamicaudata''
 
** Superfamily [[Petauroidea]]
 
** Superfamily [[Petauroidea]]
 
*** Family [[Pseudocheiridae]]
 
*** Family [[Pseudocheiridae]]
 
**** Subfamily [[Hemibelideinae]]
 
**** Subfamily [[Hemibelideinae]]
 
***** Genus ''[[Hemibelideus]]''
 
***** Genus ''[[Hemibelideus]]''
−
****** [[Lemur-like Ringtail Possum]], ''Hemibelideus lemuroides''
+
****** [[Lemur-like ringtail possum]], ''Hemibelideus lemuroides''
 
***** Genus ''[[Petauroides]]''
 
***** Genus ''[[Petauroides]]''
−
****** [[Greater Glider]], ''Petauroides volans''
+
****** [[Greater glider]], ''Petauroides volans''
 
**** Subfamily [[Pseudocheirinae]]
 
**** Subfamily [[Pseudocheirinae]]
 
***** Genus ''[[Petropseudes]]''
 
***** Genus ''[[Petropseudes]]''
−
****** [[Rock-haunting Ringtail Possum]], ''Petropseudes dahli''
+
****** [[Rock-haunting ringtail possum]], ''Petropseudes dahli''
 
***** Genus ''[[Pseudocheirus]]''
 
***** Genus ''[[Pseudocheirus]]''
−
****** [[Common Ringtail Possum]], ''Pseudocheirus peregrinus''
+
****** [[Common ringtail possum]], ''Pseudocheirus peregrinus''
 
***** Genus ''[[Pseudochirulus]]''
 
***** Genus ''[[Pseudochirulus]]''
−
****** [[Lowland Ringtail Possum]], ''Pseudochirulus canescens''
+
****** [[Lowland ringtail possum]], ''Pseudochirulus canescens''
−
****** [[Weyland Ringtail Possum]], ''Pseudochirulus caroli''
+
****** [[Weyland ringtail possum]], ''Pseudochirulus caroli''
−
****** [[Cinereus Ringtail Possum]], ''Pseudochirulus cinereus''
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****** [[Cinereus ringtail possum]], ''Pseudochirulus cinereus''
−
****** [[Painted Ringtail Possum]], ''Pseudochirulus forbesi''
+
****** [[Painted ringtail possum]], ''Pseudochirulus forbesi''
−
****** [[Herbert River Ringtail Possum]], ''Pseudochirulus herbertensis''
+
****** [[Herbert river ringtail possum]], ''Pseudochirulus herbertensis''
−
****** [[Masked Ringtail Possum]], ''Pseudochirulus larvatus''
+
****** [[Masked ringtail possum]], ''Pseudochirulus larvatus''
−
****** [[Pygmy Ringtail Possum]], ''Pseudochirulus mayeri''
+
****** [[Pygmy ringtail possum]], ''Pseudochirulus mayeri''
−
****** [[Vogelkop Ringtail Possum]], ''Pseudochirulus schlegeli''
+
****** [[Vogelkop ringtail possum]], ''Pseudochirulus schlegeli''
 
**** Subfamily [[Pseudochiropinae]]
 
**** Subfamily [[Pseudochiropinae]]
 
***** Genus ''[[Pseudochirops]]''
 
***** Genus ''[[Pseudochirops]]''
−
****** [[D'Albertis' Ringtail Possum]], ''Pseudochirops albertisii''
+
****** [[D'Albertis' ringtail possum]], ''Pseudochirops albertisii''
−
****** [[Green Ringtail Possum]], ''Pseudochirops archeri''
+
****** [[Green ringtail possum]], ''Pseudochirops archeri''
−
****** [[Plush-coated Ringtail Possum]], ''Pseudochirops corinnae''
+
****** [[Plush-coated ringtail possum]], ''Pseudochirops corinnae''
−
****** [[Reclusive Ringtail Possum]], ''Pseudochirops coronatus''
+
****** [[Reclusive ringtail possum]], ''Pseudochirops coronatus''
−
****** [[Coppery Ringtail Possum]], ''Pseudochirops cupreus''
+
****** [[Coppery ringtail possum]], ''Pseudochirops cupreus''
 
*** Family [[Petauridae]]
 
*** Family [[Petauridae]]
 
**** Genus ''[[Dactylopsila]]''
 
**** Genus ''[[Dactylopsila]]''
−
***** [[Great-tailed Triok]], ''Dactylopsila megalura''
+
***** [[Great-tailed triok]], ''Dactylopsila megalura''
−
***** [[Long-fingered Triok]], ''Dactylopsila palpator''
+
***** [[Long-fingered triok]], ''Dactylopsila palpator''
−
***** [[Tate's Triok]], ''Dactylopsila tatei''
+
***** [[Tate's triok]], ''Dactylopsila tatei''
−
***** [[Striped Possum]], ''Dactylopsila trivirgata''
+
***** [[Striped possum]], ''Dactylopsila trivirgata''
 
**** Genus ''[[Gymnobelideus]]''
 
**** Genus ''[[Gymnobelideus]]''
−
***** [[Leadbeater's Possum]], ''Gymnobelideus leadbeateri''
+
***** [[Leadbeater's possum]], ''Gymnobelideus leadbeateri''
 
**** Genus ''[[Petaurus]]''
 
**** Genus ''[[Petaurus]]''
−
***** [[Northern Glider]], ''Petaurus abidi''
+
***** [[Northern glider]], ''Petaurus abidi''
−
***** [[Yellow-bellied Glider]], ''Petaurus australis''
+
***** [[Yellow-bellied glider]], ''Petaurus australis''
−
***** [[Biak Glider]], ''Petaurus biacensis''
+
***** [[Biak glider]], ''Petaurus biacensis''
−
***** [[Sugar Glider]], ''Petaurus breviceps''
+
***** [[Sugar glider]], ''Petaurus breviceps''
−
***** [[Mahogany Glider]], ''Petaurus gracilis''
+
***** [[Mahogany glider]], ''Petaurus gracilis''
−
***** [[Squirrel Glider]], ''Petaurus norfolcensis''
+
***** [[Squirrel glider]], ''Petaurus norfolcensis''
 
*** Family [[Tarsipedidae]]
 
*** Family [[Tarsipedidae]]
 
**** Genus ''[[Tarsipes]]''
 
**** Genus ''[[Tarsipes]]''
−
***** [[Honey Possum]] or Noolbenger, ''Tarsipes rostratus''
+
***** [[Honey possum]] or Noolbenger, ''Tarsipes rostratus''
 
*** Family [[Acrobatidae]]
 
*** Family [[Acrobatidae]]
 
**** Genus ''[[Acrobates]]''
 
**** Genus ''[[Acrobates]]''
−
***** [[Feathertail Glider]] ''Acrobates pygmaeus''
+
***** [[Feathertail glider]] ''Acrobates pygmaeus''
 
**** Genus ''[[Distoechurus]]''
 
**** Genus ''[[Distoechurus]]''
−
***** [[Feather-tailed Possum]] ''Distoechurus pennatus''
+
***** [[Feather-tailed possum]] ''Distoechurus pennatus''
−
 
 
−
==Possums in popular culture==
 
−
In modern times, the phrase "Hello possums!" made famous by satirist [[Barry Humphries]]' character [[Dame Edna Everage]] has become a celebrated catchphrase.
 
  
 
== References==
 
== References==
−
*{{MSW3 Groves|pages=44-56}}
+
*Groves, C. 2005a. Superfamily Phalangeroidea. Pages 44-49 in D. E. Wilson, and D. M.Reeder, eds., ''Mammal Species of the World'', 3rd edition. Johns Hopkins University Press. ISBN 0801882214.
  
−
Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. Suborder Phalangeriformes (possums and cuscuses)The Animal Diversity Web (online). Accessed August 29, 2008 at http://animaldiversity.org.
+
*Groves, C. 2005b. Superfamily Petauroidea. Pages 50-56 in D. E. Wilson, and D. M.Reeder, eds., ''Mammal Species of the World'', 3rd edition. Johns Hopkins University Press. ISBN 0801882214.
  
−
http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=709306
+
* Grzimek, B., D. G. Kleiman, V. Geist, and M. C. McDade. 2004. ''Grzimek's Animal Life Encyclopedia.'' Detroit: Thomson-Gale, ISBN 0307394913.
−
Phalangeriformes  Szalay in Archer (ed.), 1982
 
−
Taxonomic Serial No.: 709306
 
  
−
Myers, P. 2002. "Phalangeridae" (On-line), Animal Diversity Web. Accessed August 29, 2008 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Phalangeridae.html.  
+
* Integrated Taxonomic Information System (ITIS). 2006. [http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=709306 Phalangeriformes  Szalay in Archer (ed.), 1982] ''ITIS Taxonomic Serial No.: 709306''. Retrieved August 29, 2008.
  
−
Grzimek
+
*Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. [http://animaldiversity.ummz.umich.edu/site/accounts/classification/Phalangeriformes.html Suborder Phalangeriformes (possums and cuscuses)]. ''Animal Diversity Web'' (online). Retrieved August 29, 2008.
  
−
==See also==
+
* Myers, P. 2002. [http://animaldiversity.ummz.umich.edu/site/accounts/information/Phalangeridae.html Phalangeridae]. ''Animal Diversity Web''. Retrieved August 29, 2008.
−
* [[Shrew opossum]]
 
−
* [[Playing possum]]
 
  
−
{{Diprotodontia}}
 
  
 
[[Category:Life sciences]]
 
[[Category:Life sciences]]

Latest revision as of 20:30, 15 May 2012

For the Western Hemisphere marsupial, see opossum.
Possums
Common brushtail possum (Trichosurus vulpecula)
Common brushtail possum
(Trichosurus vulpecula)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Suborder: Phalangeriformes
Szalay in Archer, 1982
Superfamilies and Families

Phalangeroidea

  • Burramyidae
  • Phalangeridae

Petauroidea

  • Pseudocheiridae
  • Petauridae
  • Tarsipedidae
  • Acrobatidae

Possum is the common name for any of the small- to medium-sized arboreal marsupials comprising the mammalian suborder Phalangeriformes of the order Diprotodontia and native to Australia, New Guinea, and Sulawesi (and introduced to New Zealand). Possums are characterized by nocturnal and omnivorous behaviors, a long tail, woolly fur, and syndactylous hind feet (united by skin at the top joint but divided at the claws). Some limit the name possum to the members of the family Phalangeridae, a group that also includes mammals with the common name of cuscus. In all, there are about 64 species in Phalangeriformes, spread over six families.

A similar group of marsupial mammals belonging to the order Didelphimorphia, and found in the Western Hemisphere, are known by the common name of opossum. The term possum also is used in North America as a diminutive for the Virginia opossum.

In their natural environment, possums provide important ecological values as part of food chains and in seed dispersal. Possums consume such foods as plant matter (leaves, fruit, flowers), insects, and bird eggs, and are consumed by such carnivores as owls, dingoes, pythons, and foxes. For humans, they also were an important part of the Aboriginal diet and used for Aboriginal clothing.

However, the introduction of the common brushtail possum to New Zealand, in an effort to establish a fur industry, has been an ecological disaster, as they have no natural predators. As an invasive species in New Zealand, their population numbers have exploded, causing damage to the native flora and fauna and serving as a carrier of bovine tuberculosis.

Overview and description

Phalangeriformes is one of three suborders within the order Diprotodontia. In addition to the possums, the order Diprotodontia includes the kangaroos, wallabies, koala, wombats, and many others. Extant diprotodonts are restricted to Australasia. There are two key anatomical features that, in combination, identify diprotodontia. Members of the order are, first, diprotodont (meaning "two front teeth"): they have a pair of large, procumbent incisors on the lower jaw, a common feature of many early groups of mammals and mammaliforms. The diprotodont jaw is short, usually with three pairs of upper incisors and no lower canines. The second trait distinguishing diprotodonts is syndactyly, a fusing of the second and third digits of the foot up to the base of the claws, which leaves the claws themselves separate.

The possums, the common name for members of Phalangeriformes, resemble in appearance the opossums of the Americas, and it is from these that their name is derived. (The name is from Algonquian wapathemwa, not Greek or Latin, so the plural is possums, not possa.) (Possum is also used in North America as a short form of opossum.) The Western Hemisphere opossums, of which there are more than 60 species, are characterized by a long, naked tail; a long, pointed snout; opposable thumbs in the hands and feet; and ears that are naked (Grzimek et al. 2004).

Possums are small marsupials with brown or gray fur, ranging in size and weight from the length of a finger or 170 grams (6 ounces) (pygmy possums and wrist-winged gliders), to the length of 120 centimeters (four feet) or 14.5 kilograms (32 pounds) (brushtails and ringtails). In general, though, the larger possums are about the same size as a well-fed domestic cat. The two most common species of possums, the common brushtail and common ringtail, are also among the largest. The possum's rank odor is due to its large musk glands located behind each ear.

All possums are nocturnal and omnivorous, hiding in a nest in a hollow tree during the day and coming out during the night to forage for food. They fill much the same role in the Australian ecosystem that squirrels fill in the northern hemisphere and are broadly similar in appearance.

The Phalangeriformes suborder is divided into two superfamilies, Petauroidea (ringtail possums and gliders) and Phalangeroidea (brushtail possums, cuscuses, and pygmy possums). There are four families in the Petauroidea superfamily: Acrobatidae (feathertail gliders and pyrmy gliders), Petauridae (gliders, Leadbeater's possum, and striped possum), Pseudocheiridae (ringtail possums), and Tarsipedidae (honey possum). There are two families in the Phalangeroidea superfamily: Burramyidae (pygmy possums) and Phalangeridae (brushtail possums and cuscuses) (Myers et al. 2008).

Cuscus is the common name generally given to the species within four genera of Phalangeridae: Ailurops, Phalanger, Spilocuscus, and Strigocuscus.

Interaction with humans

The possum has been a part of Australian culture and folklore since the original indigenous inhabitants of the country. Australian Aborigines once used possum hides while playing the traditional game of Marn Grook. Possum-skin cloaks were important clothing for Aborigines from the south-east, as well as being important clan heirlooms.

Possums are commonly found in suburban areas, where they are often considered pests owing to their habit of eating fruit, vegetables, flowers and tender young shoots from gardens, and nesting in roofs. The loud hissing, crackling territorial call of the male common brushtail may also be a problem for suburban residents. Natural deterrents that play upon the possum's acute sense of smell are often employed to discourage them. These include cloves of garlic, camphor, or naphthalene.

As a native species in Australia, possums are protected by Australian regulations, even when they reside in urban neighborhoods, and cannot be baited. They cannot be killed as pests, to the irritation of many homeowners, and if captured, the regulations stipulate that they must be released within a small radius of that locality, since they are territorial creatures. Preventative measures such as blocking off their access to the roof spaces or building a possum nesting box for an alternative home are instead recommended.

Although the common brushtail and (to a lesser extent) ringtail possums have adapted well to the urban environment, many of the lesser-known species are reduced in number, threatened, or endangered.

Introduction into New Zealand

The common brushtail possum was introduced to New Zealand by European settlers in an attempt to establish a fur industry.

They soon escaped into the wild where they have thrived as an invasive species with great numbers: around 60 million individuals are estimated to live in New Zealand. There are no native predators of the possum in New Zealand. There have been numerous attempts to eradicate them because of the damage they do to native trees and wildlife, as well as acting as a carrier of bovine tuberculosis. For New Zealand, the introduction of possums has resulted in as much of an ecological disaster as the introduction of rabbits has been in Australia.

Classification

About two-thirds of Australian marsupials belong to the order Diprotodontia, which is split into three suborders: the Vombatiformes (wombats and the koala, four species in total); the large and diverse Phalangeriformes (the possums), and Macropodiformes (kangaroos, potoroos, wallabies, and the musky rat-kangaroo).

  • Suborder PHALANGERIFORMES: possums, gliders, and allies
    • Superfamily Phalangeroidea
      • Family Burramyidae: pygmy possums
        • Genus Burramys
          • Mountain pygmy possum, Burramys parvus
        • Genus Cercartetus
          • Long-tailed pygmy possum, Cercartetus caudatus
          • Southwestern pygmy possum, Cercartetus concinnus
          • Tasmanian pygmy possum, Cercartetus lepidus
          • Eastern pygmy possum, Cercartetus nanus
      • Family Phalangeridae: brushtail possums and cuscuses
        • Subfamily Ailuropinae
          • Genus Ailurops
            • Talaud bear cuscus, Ailurops melanotis
            • Sulawesi bear cuscus, Ailurops ursinus
        • Subfamily Phalangerinae
          • Tribe Phalangerini
            • Genus Phalanger
              • Gebe cuscus, Phalanger alexandrae
              • Mountain cuscus, Phalanger carmelitae
              • Ground cuscus, Phalanger gymnotis
              • Eastern common cuscus, Phalanger intercastellanus
              • Woodlark cuscus, Phalanger lullulae
              • Blue-eyed cuscus, Phalanger matabiru
              • Telefomin cuscus, Phalanger matanim
              • Southern common cuscus, Phalanger mimicus
              • Northern common cuscus, Phalanger orientalis
              • Ornate cuscus, Phalanger ornatus
              • Rothschild's cuscus, Phalanger rothschildi
              • Silky cuscus, Phalanger sericeus
              • Stein's cuscus, Phalanger vestitus
            • Genus Spilocuscus
              • Admiralty Island cuscus, Spilocuscus kraemeri
              • Common spotted cuscus, Spilocuscus maculatus
              • Waigeou cuscus, Spilocuscus papuensis
              • Black-spotted cuscus, Spilocuscus rufoniger
              • Blue-eyed spotted cuscus, Spilocuscus wilsoni
          • Tribe Trichosurini
            • Genus Strigocuscus
              • Sulawesi dwarf cuscus, Strigocuscus celebensis
              • Banggai cuscus, Strigocuscus pelegensis
            • Genus Trichosurus
              • Northern brushtail possum, Trichosurus arnhemensis
              • Short-eared possum, Trichosurus caninus
              • Mountain brushtail possum, Trichosurus cunninghami
              • Coppery brushtail possum, Trichosurus johnstonii
              • Common brushtail possum Trichosurus vulpecula
            • Genus Wyulda
              • Scaly-tailed possum, Wyulda squamicaudata
    • Superfamily Petauroidea
      • Family Pseudocheiridae
        • Subfamily Hemibelideinae
          • Genus Hemibelideus
            • Lemur-like ringtail possum, Hemibelideus lemuroides
          • Genus Petauroides
            • Greater glider, Petauroides volans
        • Subfamily Pseudocheirinae
          • Genus Petropseudes
            • Rock-haunting ringtail possum, Petropseudes dahli
          • Genus Pseudocheirus
            • Common ringtail possum, Pseudocheirus peregrinus
          • Genus Pseudochirulus
            • Lowland ringtail possum, Pseudochirulus canescens
            • Weyland ringtail possum, Pseudochirulus caroli
            • Cinereus ringtail possum, Pseudochirulus cinereus
            • Painted ringtail possum, Pseudochirulus forbesi
            • Herbert river ringtail possum, Pseudochirulus herbertensis
            • Masked ringtail possum, Pseudochirulus larvatus
            • Pygmy ringtail possum, Pseudochirulus mayeri
            • Vogelkop ringtail possum, Pseudochirulus schlegeli
        • Subfamily Pseudochiropinae
          • Genus Pseudochirops
            • D'Albertis' ringtail possum, Pseudochirops albertisii
            • Green ringtail possum, Pseudochirops archeri
            • Plush-coated ringtail possum, Pseudochirops corinnae
            • Reclusive ringtail possum, Pseudochirops coronatus
            • Coppery ringtail possum, Pseudochirops cupreus
      • Family Petauridae
        • Genus Dactylopsila
          • Great-tailed triok, Dactylopsila megalura
          • Long-fingered triok, Dactylopsila palpator
          • Tate's triok, Dactylopsila tatei
          • Striped possum, Dactylopsila trivirgata
        • Genus Gymnobelideus
          • Leadbeater's possum, Gymnobelideus leadbeateri
        • Genus Petaurus
          • Northern glider, Petaurus abidi
          • Yellow-bellied glider, Petaurus australis
          • Biak glider, Petaurus biacensis
          • Sugar glider, Petaurus breviceps
          • Mahogany glider, Petaurus gracilis
          • Squirrel glider, Petaurus norfolcensis
      • Family Tarsipedidae
        • Genus Tarsipes
          • Honey possum or Noolbenger, Tarsipes rostratus
      • Family Acrobatidae
        • Genus Acrobates
          • Feathertail glider Acrobates pygmaeus
        • Genus Distoechurus
          • Feather-tailed possum Distoechurus pennatus

References
ISBN links support NWE through referral fees

  • Groves, C. 2005a. Superfamily Phalangeroidea. Pages 44-49 in D. E. Wilson, and D. M.Reeder, eds., Mammal Species of the World, 3rd edition. Johns Hopkins University Press. ISBN 0801882214.
  • Groves, C. 2005b. Superfamily Petauroidea. Pages 50-56 in D. E. Wilson, and D. M.Reeder, eds., Mammal Species of the World, 3rd edition. Johns Hopkins University Press. ISBN 0801882214.
  • Grzimek, B., D. G. Kleiman, V. Geist, and M. C. McDade. 2004. Grzimek's Animal Life Encyclopedia. Detroit: Thomson-Gale, ISBN 0307394913.
  • Myers, P. 2002. Phalangeridae. Animal Diversity Web. Retrieved August 29, 2008.

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