関: potoroo

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Australian rat kangaroos

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/09/12 18:41:36」(JST)

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Not to be confused with Kangaroo rat.

The marsupial family Potoroidae includes the bettongs, potoroos, and two of the rat-kangaroos. All are rabbit-sized, brown, jumping marsupials and resemble a large rodent or a very small wallaby.

Characteristics[edit source | edit]

The potoroids are smaller relatives of the kangaroos and wallabies, and may be ancestral to that group. In particular, the teeth show a simpler pattern than in the kangaroo family, with longer upper incisors, larger canines, and four cusps on the molars.^[2] However, both groups possess a wide diastema between the incisors and the cheek teeth, and the potoroids have a similar dental formula to their larger relatives:

Dentition
3.0-1.2.4
1.0.2.4

In most respects, however, the potoroids are similar to small wallabies. Their hind feet are elongated, and they move by hopping, although the adaptations are not as extreme as they are in true wallabies, and, like rabbits, they often use their forelimbs to move about at slower speeds.

The potoroids are, like nearly all diprotodonts, herbivorous. However, while they take a wide variety of vegetable foods, most have a particular taste for the fruiting bodies of fungi, and often depend on fungi to see them through periods when there is little else to eat in the dry Australian bush. One example of a potoroo that sustains itself on fungi is the Long-footed Potoroo. This animal's diet is almost entirely made up of fungal spores. This limits its habitat range as it needs to live in a moist environment, with dense cover to reduce predation from introduced species such as foxes and feral cats.

Status[edit source | edit]

There are four species of bettong. Bettongs were endangered because settlers took much of their habitat and the foxes they introduced to the continent also killed many of them. At one time, both species lived all over Australia. But today, the Tasmanian Bettong lives only in the eastern half of Tasmania, and the Northern Bettong lives only in three isolated populations in northern Queensland.

Classification[edit source | edit]

Gilbert's Potoroo

Eastern Bettong

There are three extant genera of potoroid, containing eight species:^[1]^[3]

Family Potoroidae
- Genus †Wakiewakie
- Genus †Purtia
- Genus ?†Palaeopotorous
- Subfamily †Bulungamayinae
  - Genus †Wabularoo
    - †Wabularoo hilarus
    - †Wabularoo naughtoni
  - Genus †Bulungamaya
- Subfamily Potoroinae
  - Genus Aepyprymnus
    - Rufous Rat-kangaroo, Aepyprymnus rufescens
  - Genus Bettongia
    - Eastern Bettong, Bettongia gaimardi
    - Boodie, Bettongia lesueur
    - Woylie, Bettongia penicillata
    - Northern Bettong, Bettongia tropica
    - †Nullarbor Dwarf Bettong, Bettongia pusilla^[4]
    - †Bettongia moyesi
  - Genus †Caloprymnus
    - †Desert Rat-kangaroo, Caloprymnus campestris
  - Genus Potorous
    - Long-footed Potoroo, Potorous longipes
    - †Broad-faced Potoroo, Potorous platyops
    - Long-nosed Potoroo, Potorous tridactylus
    - Gilbert's Potoroo, Potorous gilbertii
  - Genus †Gumardee
    - †Gumardee pascuali
  - Genus †Milliyowi
    - †Milliyowi bunganditj
- Subfamily †Propleopinae?
  - Genus ?†Ekaltadeta
    - †Ekaltadeta wellingtonensis
    - †Ekaltadeta ima
    - †Ekaltadeta jamiemulvaneyi
  - Genus ?†Propleopus
    - †Propleopus oscillans
    - †Propleopus chillageonsis
    - †Propleopus wellingtonensis

References[edit source | edit]

^ ^a ^b Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 56–58. OCLC 62265494. ISBN 0-801-88221-4.
^ Poole, William E. (1984). Macdonald, D., ed. The Encyclopedia of Mammals. New York: Facts on File. pp. 862–871. ISBN 0-87196-871-1.
^ Haaramo, M. (15 November 2005). "Mikko's Phylogeny Archive: Potoroidae - rat-kenguroos". Retrieved 2008-01-27.
^ Burbidge, A. (2008). Bettongia pusilla. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 5 January 2008.

External links[edit source | edit]

ARKive - images and movies of the burrowing bettong (Bettongia lesueur)
DPIWE information on the Tasmanian Bettong
U.S. Fish & Wildlife Service Species Profile
Australian Faunal Directory

English Journal

Dynamic bonds and polar ejection force distribution explain kinetochore oscillations in PtK1 cells.

Civelekoglu-Scholey G, He B, Shen M, Wan X, Roscioli E, Bowden B, Cimini D.SourceDepartment of Molecular and Cellular Biology, University of California, Davis, CA 95616, USA.
The Journal of cell biology.J Cell Biol.2013 May 13;201(4):577-93. doi: 10.1083/jcb.201301022.
Duplicated mitotic chromosomes aligned at the metaphase plate maintain dynamic attachments to spindle microtubules via their kinetochores, and multiple motor and nonmotor proteins cooperate to regulate their behavior. Depending on the system, sister chromatids may display either of two distinct beha
PMID 23671311

Actin filament elongation in Arp2/3-derived networks is controlled by three distinct mechanisms.

Michelot A, Grassart A, Okreglak V, Costanzo M, Boone C, Drubin DG.SourceDepartment of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3202, USA.
Developmental cell.Dev Cell.2013 Jan 28;24(2):182-95. doi: 10.1016/j.devcel.2012.12.008. Epub 2013 Jan 17.
Spatial and temporal control of actin filament barbed end elongation is crucial for force generation by actin networks. In this study, genetics, cell biology, and biochemistry were used to reveal three complementary mechanisms that regulate actin filament barbed end elongation in Arp2/3-derived netw
PMID 23333351

Quantitative fluorescent speckle microscopy (QFSM) to measure actin dynamics.

Mendoza MC, Besson S, Danuser G.SourceDepartment of Cell Biology, Harvard Medical School, Boston, MA, USA.
Current protocols in cytometry / editorial board, J. Paul Robinson, managing editor ... [et al.].Curr Protoc Cytom.2012 Oct;Chapter 2:Unit2.18. doi: 10.1002/0471142956.cy0218s62.
Quantitative fluorescent speckle microscopy (QFSM) is a live-cell imaging method to analyze the dynamics of macromolecular assemblies with high spatial and temporal resolution. Its greatest successes were in the analysis of actin filament and adhesion dynamics in the context of cell migration and mi
PMID 23042526

Japanese Journal

Phylogenetic Analysis of Diprotodontian Marsupials Based on Complete Mitochondrial Genomes

Munemasa Maruo,Nikaido Masato,Donnellan Stephen [他],AUSTIN Christopher C.,OKADA Norihiro,HASEGAWA Masami
Genes & genetic systems 81(3), 181-191, 2006-06-25
… These Diprotodontian families are largely grouped into two suborders, Vombatiformes, which contains Phascolarctidae (koala) and Vombatidae (wombat), and Phalangerida, which contains Macropodidae, Potoroidae, Phalangeridae, Petauridae, Pseudocheiridae, Acrobatidae, Tarsipedidae and Burramyidae. … Moreover, phylogenetic relationships among possum families (Phalangeridae, Petauridae, Pseudocheiridae, Acrobatidae, Tarsipedidae and Burramyidae) as well as a sister group of Macropodoidea (Macropodidae and Potoroidae) remain unclear. …
NAID 10018212681

Related Pictures

Potoroidae potoroidae potoroos bettongs potoroidae Sıçan kangurusugiller (Potoroidae) iki Brush-tailed Bettong.jpg Potoroidae : Bettong Potoroo Family: Potoroidae

★リンクテーブル★

リンク元	「ネズミカンガルー科」「potoroo」

「ネズミカンガルー科」

Potoroidae; Temporal range: Late Oligocene–Recent PreЄ Є O S D C P T J K Pg N
	Woylie (Bettongia penicillata)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Infraclass:	Marsupialia
Order:	Diprotodontia
Suborder:	Macropodiformes
Family:	Potoroidae; Gray, 1821
Genera
	Aepyprymnus; Bettongia; †Bulungamaya; †Ekaltadeta?; †Caloprymnus; †Gumardee; †Milliyowi; †Paleopotorous?; Potorous; †Propleopus?; †Purtia; †Wabularoo; †Wakiewakie

　　[★]

ラ: Potoroidae
関: ネズミカンガルー

「potoroo」

　　[★]

ネズミカンガルー

関: Potoroidae

[msw3-1] Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 56–58. OCLC 62265494. ISBN 0-801-88221-4.

[EoM-2] Poole, William E. (1984). Macdonald, D., ed. The Encyclopedia of Mammals. New York: Facts on File. pp. 862–871. ISBN 0-87196-871-1.

[3] Haaramo, M. (15 November 2005). "Mikko's Phylogeny Archive: Potoroidae - rat-kenguroos". Retrieved 2008-01-27.

[4] Burbidge, A. (2008). Bettongia pusilla. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 5 January 2008.

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案内

Potoroidae