Southern tuco-tuco

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Southern tuco-tuco
Dune Tuco-tuco imported from iNaturalist photo 57358841 on 11 October 2021.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Ctenomyidae
Genus: Ctenomys
Species:
C. australis
Binomial name
Ctenomys australis
Rusconi, 1934

The southern tuco-tuco (Ctenomys australis) is a species of rodent in the family Ctenomyidae. [2] It is endemic to Argentina.

Contents

Anatomy

The southern tuco-tuco is a large rodent, ranging in weight from 250–600 grams. Its head-body length is 15–25 cm, while its tail length is 6–11 cm. [3] At this size, it is one of the largest species within the genus Ctenomys. [4]

They are characterized by their large head, short legs, and considerable incisors. [5] Their pelage ranges in color from dark brown to black with pale-grey underparts, resembling the sandy soil of its habitat. [6] Its tail, however, has no hair. [5]

Distribution

The southern tuco-tuco lives sympatrically with the Talas tuco-tuco (C. talarum) in the coastal grassland and sand dune areas of the Buenos Aires Province, Argentina along the Atlantic coast. Its region ranges from Necochea to Bahia Blanca. Though these two species live in the same region, they are microspacially segregated based on their different preferences in soil type. The southern tuco-tuco prefers softer soil with poor and low primary productivity. [3]

Habitat

The southern tuco-tuco lives in sand dunes, building large burrow systems in areas with scarce vegetation and deep soil. [7]

Behavior

Southern tuco-tucos are highly territorial and aggressive. They prefer to live solitary lives, and are suggested to be polygamous. [4]

As for dietary consideration, they are herbivorous, [8] feeding on almost all of the plant species available in the grassland area. They have been observed to prefer grasses over forbs throughout the year. [7]

Reproduction

The gestation period of the southern tuco-tuco is 100 days and can reproduce up to two times per year. On average, there are approximately 3 young born in a litter, though anywhere between 2 and 6 pups can be born. [5] [1]

Predation

The Southern tuco-tuco can be preyed on by owls, though this is more likely to occur in their sympatric relative, the Talas tuco-tuco due to its difference in size. [6]

Habitat destruction

The sand dune habitats are currently being destroyed for the development of urban areas, forestry, and grassland advancement. Therefore, the survival of the species is threatened, as they depend greatly on the sand dune ecosystem. [4]

Related Research Articles

<span class="mw-page-title-main">Tuco-tuco</span> Genus of rodents

A tuco-tuco is a neotropical rodent in the family Ctenomyidae. Tuco-tucos belong to the only living genus of the family Ctenomyidae, Ctenomys, but they include approximately 60 different species. The common name, "tuco-tuco", comes from the "tuc-tuc" sound they make while they dig their burrows.

<span class="mw-page-title-main">Haig's tuco-tuco</span> Species of rodent

Haig's tuco-tuco, known regionally as the Patagonian tuco-tuco, is a hystricognath rodent. Like other tuco-tucos it is subterranean and thus not often observed, although the "tuc-tuc" call of the males can be heard near burrow sites, especially in the early morning. Like most species in the genus Ctenomys, C. haigi are solitary, with one adult per burrow.

<span class="mw-page-title-main">Collared tuco-tuco</span> Species of rodent

The collared tuco-tuco is a tuco-tuco species from South America. It is found in southern Brazil, Uruguay and northern Argentina, where it lives underground in a burrow it digs in savannah habitats. It is a relatively common species and the IUCN has assessed its conservation status as being of "least concern".

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

Ord's kangaroo rat is a kangaroo rat native to western North America, specifically the Great Plains and the Great Basin, with its range extending from extreme southern Canada to central Mexico.

<span class="mw-page-title-main">Emily's tuco-tuco</span> Species of rodent

Emily's tuco-tuco, also called Emilio's tuco-tuco, is a species of rodent in the family Ctenomyidae. It is endemic to Argentina. This species was named after Emilio Budin, an Argentine specimen collector who worked with Oldfield Thomas.

The tawny tuco-tuco is a species of burrowing rodent in the family Ctenomyidae. It is found in the desert regions of northern Chile and adjoining areas of Argentina.

The Maule tuco-tuco is a species of rodent in the family Ctenomyidae. It is found in Argentina and Chile, where it occupies several different types of habitats. It is a common species, and the IUCN has assessed its conservation status as being of "least concern". The common and scientific names refer to a river and region in Chile within its range.

The Mendoza tuco-tuco is a species of rodent in the family Ctenomyidae.

<span class="mw-page-title-main">Highland tuco-tuco</span> Species of rodent

The highland tuco-tuco is a species of rodent in the family Ctenomyidae. It is found in high grassland in Argentina, Bolivia, Chile, and Peru where it lives in burrows.

The social tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to Argentina. Its natural habitat is subtropical or tropical dry lowland grassland.

<span class="mw-page-title-main">Talas tuco-tuco</span> Species of rodent

The Talas tuco-tuco is a species of tuco-tuco endemic to eastern Argentina.

<span class="mw-page-title-main">Robust tuco-tuco</span> Species of rodent

The robust tuco-tuco is a species of rodent in the family Ctenomyidae. It is a burrowing rodent and is endemic to the Tucumán Province of Argentina.

<span class="mw-page-title-main">Coruro</span> Genus of rodents

The coruro is a species of rodent in the family Octodontidae. It is the only species in the genus Spalacopus. The species is endemic to central Chile, where it has been found in a wide variety of habitats, from coastal to montane. It is fossorial and lives in colonies.

The Rio Negro tuco-tuco is a species of rodent in the family Ctenomyidae. It is found in a small fragmented range in Entre Ríos Province in northeastern Argentina and in the Río Negro Department of western Uruguay. It is restricted to sand dunes, and is threatened by the conversion of this habitat to forestry plantations.

Berg's tuco-tuco is a species of rodent in the family Ctenomyidae, named after the Latvian-Argentine biologist Frederico Guillermo Carlos Berg. It is endemic to northwestern Córdoba Province in central Argentina. Its habitat is grassy areas overlying sand dunes. The species is threatened by the degradation and severe fragmentation of its small habitat.

<span class="mw-page-title-main">Flamarion's tuco-tuco</span> Species of rodent

Flamarion's tuco-tuco or the tuco-tuco of the dunes is a rodent species of the family Ctenomyidae Its karyotype has 2n = 48 and FN = 50–78. It is endemic to the coastal dunes of Rio Grande do Sul state, southern Brazil. The species is threatened by habitat loss due to dune removal and urbanization. It is named after Brazilian biologist Luiz Flamarion B. de Oliveira.

<span class="mw-page-title-main">Lami tuco-tuco</span> Species of rodent

The Lami tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to an area in the state of Rio Grande do Sul in southern Brazil, where it is found in the vicinity of sand dunes. The species is threatened by urbanization and the conversion of its habitat to agricultural use. Swamp drainage has led to a zone of hybridization with a neighboring population of C. minutus.

Roig's tuco-tuco is a species of rodent in the family Ctenomyidae. It is endemic to a small region near the Paraná River in Corrientes Province, northeastern Argentina, where lives on sand dunes, and near rivers. Development is degrading and shrinking this habitat, threatening the rodent's survival. The species is named after Argentine zoologist Virgilio G. Roig. Its karyotype has 2n = 48 and FN = 80.

C. australis may refer to:

References

  1. 1 2 Bidau, C.J. (2018). "Ctenomys australis". IUCN Red List of Threatened Species . 2018: e.T5796A78319377. doi: 10.2305/IUCN.UK.2018-1.RLTS.T5796A78319377.en .
  2. Woods, C. A. and Kilpatrick, C. W. (2005). "Infraorder Hystricognathi", pp. 1538–1600 in: Wilson, D. E. and D. M. Reeder. Mammal Species of the World (3rd ed.) Johns Hopkins University Press. ISBN   9780801882210
  3. 1 2 Luna, Facundo; Antinuchi, C. Daniel (2007). "Energy and Distribution in Subterranean Rodents: Sympatry between Two Species of the Genus Ctenomys". Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology. 147 (4): 948–954. doi:10.1016/j.cbpa.2007.02.032. PMID   17407828.
  4. 1 2 3 Mora, Matías S.; Mapelli, Fernando J.; Gaggiotti, Oscar E.; Kittlein, Marcelo J.; Lessa, Enrique P. (2010). "Dispersal and Population Structure at Different Spatial Scales in the Subterranean Rodent Ctenomys australis". BMC Genetics. 11: 9. doi: 10.1186/1471-2156-11-9 . PMC   2828403 . PMID   20109219.
  5. 1 2 3 "Southern Tuco-tuco (Ctenomys australis)." ARKive. 4 October 2013. Archived 2013-12-04 at the Wayback Machine
  6. 1 2 Vassallo, Aldo I.; Kittlein, Marcelo J.; Busch, Cristina (1994). "Owl Predation on Two Sympatric Species of Tuco-Tucos (Rodentia: Octodontidae)". Journal of Mammalogy. 75 (3): 725–732. doi:10.2307/1382522. JSTOR   1382522.
  7. 1 2 Comparatore, V.M.; Cid, M.S.; Busch, C. (1995). "Dietary Preferences of Two Sympatric Subterranean Rodent Populations in Argentina" (PDF). Revista Chilena de Historia Natural. 68: 197–206.
  8. Cutrera, A. P.; Mora, M. S.; Antenucci, C. D.; Vassallo, A. I. (2010). "Intra- and Interspecific Variation in Home-range Size in Sympatric Tuco-Tucos, Ctenomys australis and C. talarum". Journal of Mammalogy. 91 (6): 1425–1434. doi: 10.1644/10-MAMM-A-057.1 . JSTOR   40961871. S2CID   85964128.