For the South American species also known as bamboo rats, see Dactylomys and Kannabateomys.
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Bamboo rats
Temporal range: Late Miocene - recent
Lesser bamboo rat, Cannomys badius
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Rodentia
Family:
Spalacidae
Subfamily:
Rhizomyinae
Tribe:
Rhizomyini Winge, 1887
Species
Genus Rhizomys
Rhizomys sinensis
Rhizomys pruinosus
Rhizomys sumatrensis
Genus Cannomys
Cannomys badius
The bamboo rats are four species of rodents of the subfamily Rhizomyinae. They are the sole living representatives of the tribe Rhizomyini. These species are found in South Asia, Southeast Asia and East Asia.
The species are:
The Chinese bamboo rat, Rhizomys sinensis, found in central and southern China, northern Burma, and Vietnam;
The hoary bamboo rat, R. pruinosus, found from Assam in India to southeastern China and the Malay Peninsula;
The Sumatra,Indomalayan, or large bamboo rat, R. sumatrensis, found in Yunnan in China, Indochina, the Malay Peninsula and Sumatra.
The lesser bamboo rat, Cannomys badius, found in Nepal, Assam, northern Bangladesh, Burma, Thailand, Laos, Cambodia and northern Vietnam.
Bamboo rats vary in size, from the lesser bamboo rat, which is typically 15 to 25 cm (5.9 to 9.8 in) long (head and body: tail length is 6–8 cm (2.4–3.1 in)), and weighs from 500 to 750 g (18 to 26 oz), to the Sumatra bamboo rat, which can reach lengths of nearly 50 cm (20 in) with a 20 cm (7.9 in) tail, and weighs up to 4 kg (8.8 lb). However, they are all bulky, slow-moving rodents that live and forage in extensive burrow systems and rarely spend much time above ground. They feed on the underground parts of plants. They live at altitudes of 1,200 to 4,000 m (3,900 to 13,100 ft) and, except for the lesser bamboo rat, feed principally on bamboo and live in dense bamboo thickets. The lesser bamboo rat is more variable in its habitat, living in grassy areas, forests, and sometimes gardens, and eats a wider variety of vegetation.
All bamboo rats are regarded as agricultural pests since they eat the roots of a range of crop plants such as tapioca, sugar cane, and tea bushes, but they are also recognised as valuable food animals.
The bamboo rats are the natural hosts for the disease-causing mold, Talaromyces marneffei, which is endemic in all species in Southeast Asia.[1][2] In this area, talaromycosis due to the mold is the third most common opportunistic infection in HIV-positive individuals.
^Common Reservoirs for Penicillium marneffei Infection in Humans and Rodents, China
^Ajello, L; Padhye, AA; Sukroongreung, S; Nilakul, CH; Tantimavanic, S (1995). "Occurrence of Penicillium marneffei infections among wild bamboo rats in Thailand". Mycopathologia. 131 (1): 1–8. doi:10.1007/bf01103897. PMID 8532047. S2CID 20573325.
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