Big-headed African mole-rat

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Big-headed african mole rat
Giant mole-rat (Tachyoryctes macrocephalus).jpg
Sanetti Plateau, Ethiopia
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Spalacidae
Genus: Tachyoryctes
Species:
T. macrocephalus
Binomial name
Tachyoryctes macrocephalus
Rüppell, 1842
Synonyms

Tachyoryctes heckiNeumann & Rümmler 1928

The big-headed African mole rat (Tachyoryctes macrocephalus), also known as the giant root-rat, Ethiopian African mole rat, or giant mole rat, is a rodent species in the family Spalacidae. [2] It is endemic to Ethiopia's Bale Mountains. [3] Its natural habitat is subtropical or tropical high-altitude grassland, [1] where it can reach densities of up to 2,600 individuals per square kilometre. [3] It is threatened by habitat loss. [1] Where the two species overlap, it is the main prey of the endangered Ethiopian wolf (Canis simensis). [3]

Big-headed African mole rats are highly distinctive in their large size, especially that of their heads. They are a mottled golden-brown in color, and are soft-furred. [3]

While the other mole rats not only live but also feed underground, this species mostly forages above ground, by digging a new tunnel to a patch of herbage. It forages for about 20 minutes, until it has exhausted the supply of herbs about its tunnel, after which it blocks the tunnel it has built from the inside. It mostly eats grasses and herbs, with some individuals feeding mostly on roots. [4] It retains its specialisations for digging tunnels because of the constant threat of predators, especially the Ethiopian wolf, which is specialised to a diet of mole rats. Ethiopian wolves catch mole rats by ambushing them after they have constructed a new foraging tunnel, chasing them into their tunnel, and then vigilantly waiting for them to resurface. These mole rats have evolved defenses other than flight, though, being very cautious and having incisors large enough to severely injure potential predators. [3]

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<span class="mw-page-title-main">Rhizomyinae</span> Subfamily of rodents

The rodent subfamily Rhizomyinae includes the Asian bamboo rats and certain of the African mole-rats. The subfamily is grouped with the Spalacinae and the Myospalacinae into a family of fossorial muroid rodents basal to the other Muroidea.

<span class="mw-page-title-main">Naked mole-rat</span> Burrowing rodent; one of only two known eusocial rodents

The naked mole-rat, also known as the sand puppy, is a burrowing rodent native to the Horn of Africa and parts of Kenya, notably in Somali regions. It is closely related to the blesmols and is the only species in the genus Heterocephalus.

<span class="mw-page-title-main">Ethiopian wolf</span> Canine native to Ethiopian Highlands

The Ethiopian wolf, also called the Simien jackal and Simien fox, is a canine native to the Ethiopian Highlands. In southeastern Ethiopia it is also known as the horse jackal. It is similar to the coyote in size and build, and is distinguished by its long and narrow skull, and its red and white fur. Unlike most large canids, which are widespread, generalist feeders, the Ethiopian wolf is a highly specialised feeder of Afroalpine rodents with very specific habitat requirements. It is one of the world's rarest canids, and Africa's most endangered carnivore.

<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.

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

The lesser bandicoot rat, Sindhi rice rat, Bengal rat or Indian mole-rat is a giant rat of Southern Asia, not related to the true bandicoots which are marsupials. They can be up to 40 cm long, are considered a pest in the cereal crops and gardens of India and Sri Lanka, and emit piglike grunts when attacking. The name bandicoot is derived from the Telugu language word pandikokku, which translates loosely to "pig-rat". Like the better known rats in the genus Rattus, bandicoot rats are members of the family Muridae. Their fur is dark or (rarely) pale brown dorsally, occasionally blackish, and light to dark grey ventrally. The head-body length is around 250 mm, and the uniformly dark tail is shorter than the head-body length.

<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">Rough-haired golden mole</span> Species of mammal

The rough-haired golden mole is a species of mammal that live mostly below ground. They have shiny coats of dense fur and a streamlined, formless appearance. They have no visible eyes or ears; in fact, they are blind - the small eyes are covered with hairy skin. The ears are small and are hidden in the animal's fur.

<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">Banner-tailed kangaroo rat</span> Species of rodent

The banner-tailed kangaroo rat is a species of rodent in the family Heteromyidae. It is found in arid environments in the southwestern United States and Mexico where it lives in a burrow by day and forages for seeds and plant matter by night.

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

Stephens's kangaroo rat is a species of rodent in the family Heteromyidae. It is endemic to the Southern California region of the United States, primarily in western Riverside County. The species is named after American zoologist Frank Stephens (1849–1937).

<i>Tachyoryctes</i> Genus of rodents

Tachyoryctes is a genus of rodent in the family Spalacidae. It contains the following species:

<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">Common mole-rat</span> Species of rodent

The common mole-rat, African mole-rat, or Hottentot mole-rat, is a burrowing rodent found in Southern Africa, in particular in the Western Cape province of South Africa. It also occurs in Eswatini, Lesotho, Malawi, Mozambique, Tanzania, Zambia, and Zimbabwe. It is a species in the subfamily Bathyerginae.

<span class="mw-page-title-main">Ethiopian montane moorlands</span>

The Ethiopian montane moorlands is a montane grasslands and shrublands ecoregion in Ethiopia. It lies above 3,000 meters elevation in the Ethiopian Highlands, the largest Afroalpine region in Africa. The montane moorlands lie above the tree line, and consist of grassland and moorland with abundant herbs and shrubs adapted to the high elevation conditions.

References

  1. 1 2 3 Lavrenchenko, L. & Kennerley, R. (2017) [errata version of 2016 assessment]. "Tachyoryctes macrocephalus". IUCN Red List of Threatened Species . 2016: e.T21293A115161321. doi: 10.2305/IUCN.UK.2016-3.RLTS.T21293A22276163.en . Retrieved 5 December 2023.
  2. Wilson, D. E.; Reeder, D. M., eds. (2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN   978-0-8018-8221-0. OCLC   62265494.
  3. 1 2 3 4 5 Kingdon, Jonathan (1989). Island Africa: The Evolution of Africa's Rare Plants and Animals . Princeton, New Jersey: Princeton University Press. ISBN   0-691-08560-9.
  4. Yalden, D. W. (24 May 1985). "Tachyoryctes macrocephalus" (PDF). Mammalian Species. The American Society of Mammalologists (237): 1–3. doi:10.2307/3503827. JSTOR   3503827.