Giant blind mole-rat

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Giant blind mole-rat
Cherep Spalax giganteus, vid sverkhu.jpg
Skull
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Spalacidae
Genus: Spalax
Species:
S. giganteus
Binomial name
Spalax giganteus
Nehring, 1898 [2]

The giant blind mole-rat (Spalax giganteus) is a species of rodent in the family Spalacidae endemic to the North Caucasus region of Russia. [2] It feeds on roots and tubers and lives underground in a burrow that it digs with its teeth.

Contents

Distribution and habitat

The giant blind mole-rat is native to the North Caucasus, Chechnya, and southern Kalmykia located between the northern ends of the Caspian and Black Seas. It is restricted to a range of less than 50,000 km2 (19,000 sq mi), and its distribution within that area is quite patchy. It lives underground in burrows in damp, sandy soils in semidesert areas, in river valleys, on plains, in shrubby or reedy areas, and in disturbed and cultivated soils. [1]

Behaviour

The giant blind mole-rat is active all year round. It lives a largely subterranean existence in the burrow that it digs and is believed to be monogamous. Breeding activities usually occur in December and January and females produce litters of two or three young. [1]

Besides using its incisor teeth for gnawing its food of roots and tubers, the giant blind mole-rat uses them to dig burrows. [3] The teeth grow continually and need to be ground down to keep them sharp and functional. This is achieved by grinding the upper and lower teeth together by raising, lowering, and protruding the mandible in a cyclical movement. [3]

Status

Within its range, the giant blind mole-rat has a patchy distribution and is thought to have an actual area of occupancy less than 37,000 km2 (14,000 sq mi). The sandy desert areas in which it lives are of little interest for agriculture, and the International Union for Conservation of Nature, although previously listing it as vulnerable, now lists it as a "least-concern species" in its Red List of Threatened Species. [1]

Related Research Articles

<span class="mw-page-title-main">Spalacidae</span> Family of rodents

The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea. They are native to eastern Asia, the Horn of Africa, the Middle East, and southeastern Europe. It includes the blind mole-rats, bamboo rats, mole-rats, and zokors. This family represents the oldest split in the muroid superfamily, and comprises animals adapted to a subterranean way of life. These rodents were thought to have evolved adaptations to living underground independently until recent genetic studies demonstrated they form a monophyletic group. Members of the Spalacidae are often placed in the family Muridae along with all other members of the Muroidea.

<i>Spalax</i> Genus of rodents

Spalax is a genus of rodent in the family Spalacidae, subfamily Spalacinae. It is one of two extant genera in the subfamily Spalacinae, alongside Nannospalax.

<span class="mw-page-title-main">Blind mole-rat</span> Subfamily of rodents

The blind mole-rats, also known as the fossorial or subterranean mole rats, are a subfamily (Spalacinae) of rodents in the family Spalacidae, found in eastern Europe and western & central Asia. The hystricognath mole-rats of the family Bathyergidae are completely unrelated, but some other forms are also in the family Spalacidae. Zokors, root rats, and bamboo rats are spalacids also sometimes referred to as mole rats.

<span class="mw-page-title-main">American shrew mole</span> Species of mammal

The American shrew mole is the smallest species of mole. It is the only living member of the genus Neurotrichus and the tribe Neurotrichini. It is also known as Gibb's shrew mole and least shrew mole. It is not closely related to the Asian shrew mole. The reason that it is called a "shrew mole" instead of being called either a "shrew" or a "mole" is because of its fur, which is a characteristic of shrews and its large head and heavy dentition, which is characteristic of moles.

<span class="mw-page-title-main">Blesmol</span> Family of rodents

The blesmols, also known as mole-rats, or African mole-rats, are burrowing rodents of the family Bathyergidae. They represent a distinct evolution of a subterranean life among rodents much like the pocket gophers of North America, the tuco-tucos in South America, or the Spalacidae from Eurasia.

<span class="mw-page-title-main">Damaraland mole-rat</span> Species of eusocial burrowing rodent from southern Africa (Fukomys damarensis)

The Damaraland mole-rat, Damara mole rat or Damaraland blesmol, is a burrowing rodent found in southern Africa. Along with the smaller, less hairy, naked mole rat, it is a species of eusocial mammal.

<span class="mw-page-title-main">Cape mole-rat</span> Species of rodent

The Cape mole-rat is a species of mole-rat endemic to South Africa. It is the only extant species currently described as belonging to the genus Georychus.

<span class="mw-page-title-main">Silvery mole-rat</span> Species of rodent

The silvery mole-rat, silvery blesmol, or silky mole-rat is a species of mole-rat of East Africa which occurs in southern Kenya, Tanzania, southeastern Democratic Republic of Congo, Mozambique and Malawi. Solitary and aggressive, little is known about its ecology or behavior. It is monotypic in the genus Heliophobius. A common species, the International Union for Conservation of Nature has rated it as being of "least concern".

<span class="mw-page-title-main">Giant golden mole</span> Species of mammal

The giant golden mole is a small mammal found in Africa. At 23 centimetres (9.1 in) in length, it is the largest of the golden mole species. The mole has dark, glossy brown fur; the name golden comes from the Greek word for green-gold, the family Chrysochloridae name.

<span class="mw-page-title-main">Zaisan mole vole</span> Species of rodent

The Zaisan mole vole, or eastern mole vole, is a species of rodent in the family Cricetidae. It is found in central Asia.

<span class="mw-page-title-main">Middle East blind mole-rat</span> Species of mammal

The Middle East blind mole-rat or Palestine mole-rat is a species of rodent in the family Spalacidae.

<span class="mw-page-title-main">Cape dune mole-rat</span> Species of rodent

The Cape dune mole-rat is a species of solitary burrowing rodent in the family Bathyergidae. It is endemic to South Africa and named for the Cape of Good Hope.

<span class="mw-page-title-main">Mechow's mole-rat</span> Species of rodent

Mechow's mole-rat is a species of rodent in the family Bathyergidae. It is found in Angola, Democratic Republic of the Congo, Zambia, and possibly Malawi. Its natural habitats are moist savanna, subtropical or tropical dry shrubland, and subtropical or tropical dry lowland grassland. This mole-rat was first described by the German naturalist Wilhelm Peters in 1881. The specific epithet honours the Prussian explorer and naturalist Friedrich Wilhelm Alexander von Mechow.

<span class="mw-page-title-main">Sandy blind mole-rat</span> Species of rodent

The sandy blind mole-rat is an endangered species of rodent in the family Spalacidae. It is endemic to Ukraine. It was first identified by Evdokia Reshetnik in 1939.

<span class="mw-page-title-main">Greater blind mole-rat</span> Species of rodent

The greater blind mole-rat is a species of rodent in the family Spalacidae. It is found in Russia and Ukraine.

<span class="mw-page-title-main">Northeast African mole-rat</span> Species of rodent

The northeast African mole-rat is a species of rodent in the family Spalacidae and is found in Ethiopia, Somalia, and northwest Kenya. Its natural habitats are subtropical or tropical moist montane forests, dry savanna, high-altitude shrubland and grassland. It lives a solitary existence underground and produces a small litter of pups twice a year, in the two rainy seasons. Some taxonomic authorities lump this species, along with a number of others in the genus, in which case the English name East African mole-rat is used.

<span class="mw-page-title-main">Baird's pocket gopher</span> Species of rodent

Baird's pocket gopher or the Louisiana pocket gopher is a species of pocket gopher that is native to the southern United States. In total, there are three almost identical species of eastern pocket gopher; Geomys attwateri, G. bursarius, and G. breviceps. G. breviceps is larger in size, G. attwateri is medium-sized and G. bursarius is a bit smaller. Other than by size variation they are not identifiable by external features. Baird's pocket gophers are small rodents with most of their weight on the top half of their bodies.

The Kazakhstan blind mole-rat or Ural blind mole-rat is a species of rodent in the family Spalacidae. It is endemic to Kazakhstan, along the Ural River basin and the flood plains of the Uil, Temir, and Emba rivers.

Mehely's blind mole-rat is an endangered species of rodent in the family Spalacidae. It is endemic to Romania.

References

  1. 1 2 3 4 Kennerley, R.; Formozov, N.; Sheftel, B. (2016). "Spalax giganteus". IUCN Red List of Threatened Species . 2016: e.T20429A2772339. doi: 10.2305/IUCN.UK.2016-2.RLTS.T20429A2772339.en . Retrieved 12 November 2021.
  2. 1 2 Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 919. ISBN   978-0-8018-8221-0. OCLC   62265494.
  3. 1 2 Neveu, P.; Gasc, J. P. (2009). "A cinefluorographical study of incisor sharpening in Spalax giganteus Nehring, 1898 (Rodentia, Mammalia)". Mammalia. 63 (4): 505–518. doi:10.1515/mamm.1999.63.4.505. S2CID   84385360.