Rhabdomys dilectus
| Mesic four-striped grass rat | |
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| Rhabdomys dilectus at the Prague Zoo | |
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R. dilectus
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| Rhabdomys dilectus De Winton, 1897
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The mesic four-striped grass rat (Rhabdomys dilectus) is a species of rodent in the family Muridae.[2]
Taxonomy
Traditionally the genus Rhabdomys has been seen as a single species, Rhabdomys pumilio, though modern evidence on the basis of karyotype and mtDNA analysis suggests that it comprises a second species, Rhabdomys dilectus .[3]
R. dilectus is divided in the following subspecies.
- R.d.dilectus (karyotypic form 2n = 46): Lesotho, southafrican province of KwaZulu-Natal and eastern Zimbabwe;
- R.d.angolae (Wroughton, 1905): central and southern Angola;
- R.d.diminutus (Thomas, 1893): central and western Kenya, central-eastern Uganda, highlands of central-northern Tanzania, south-east Democratic Republic of Congo, northern Malawi;
Description
Rhabdomys dilectus is a fairly typical smallish murid, rather larger than house mice. Head+body length is between 90 and 135 mm, the length of the tail between 80 and 135 mm, the length of the foot between 17 and 33 mm, the length of the ears between 10.0 and 20 mm and the weight up to 68 g.[4]
The back is dark reddish-brown and displays characteristic black longitudinal stripes.[5] The stripes inspired the generic name, which is derived from the Greek rhabdos meaning rod, giving Rhabdomys, meaning something like "barred mouse". The ventral sides are lighter. The legs are dark grizzled. The tail is shorter than the head and body. It is a terrestrial species, crepuscular and solitary. It feeds mainly on seeds of wheat and partly on plants, berries and small invertebrates. It is considered a plague by farmers.
Distribution
It is found throughout the southern Africa, Angola and south-east Africa.
Habitat
He lives in the wetter mountain savannas up to 2,300 meters above sea level. It is often found in cultivated fields and in urban areas inside the houses.
References
- ↑ Biolib
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Castiglia, R., Solano, E., Makundi, R. H., Hulselmans, J., Verheyen, E. and Colangelo, P. (2011), Rapid chromosomal evolution in the mesic four-striped grass rat Rhabdomys dilectus (Rodentia, Muridae) revealed by mtDNA phylogeographic analysis. Journal of Zoological Systematics and Evolutionary Research. doi:10.1111/j.1439-0469.2011.00627.x
- ↑ Jonathan Kingdon, East African Mammals: An Atlas of Evolution in Africa, Volume 2, Part B, University of Chicago Press, 1974
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- D. E. Wilson and D. M. Reeder - Mammal Species of the World a Taxonomic and Geographic Reference. eds. Johns Hopkins University Press, Baltimore.
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