Animal Diversity WebU of M Museum of Zoology ADW Home ADW Home ADW Home University of Michigan Help About Aninal Names Teaching Special Topics About Us



Structured Inquiry Search — preview

Dendromus melanotis
gray climbing mouse


By Ben Clauss

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Rodentia
Family: Nesomyidae
Genus: Dendromus
Species: Dendromus melanotis

Geographic Range

Dendromus melanotis is found in sub-Saharan Africa, having the most extensive range of any of the four species in the Genus Dendromus (Kingdon 1989). Specifically grey climbing mice are found in South Africa, Lesotho, Swaziland, Botswana, Southern Zimbabwe, Western Mozambique, and the North Eastern corner of Nambia (Stuart 1999). It is believed that D. melanotis is expanding its range (Kingdon 1989).

Habitat

Dendromus melanotis lives in grasses and shrubs which characterizes the savanna composing the majority of its range (Kingdon 1990). Grey climbing mice are mostly found in grass-brush biotypes (Dieterlen 1990). A study of small mammals in South Africa demonstrated that D. melanotis can be found in coastal lowlands, lowveld, moist upland, highland, and montane areas (Avery 1997). In a 1971 study Dieterlen found that, of the 87 grey climbing mice trapped, 14 were found in dry-grass savanna, 34 in mixed biotypes, and 39 in moist habitats.

Terrestrial Biomes
savanna or grassland

Physical Description

Range mass
8 to 17 g
(0.28 to 0.60 oz)

Dendromus melanotis has a body length ranging from 6-9 cm and a tail length of 7.5-13 cm. The pelage is ash-grey with a dark dorsal stripe, and white or off-white underparts. Grey climbing mice have a long, prehensile tail, three digits per hand, unusually large eyes, and females have eight mammae. (Stuart 1999; Dieterlen 1990; Kingdon 1989).

Reproduction

Average number of offspring
4.6
[External Source: AnAge]

Average gestation period
25 days
[External Source: AnAge]

The gestation period for D. melanotis is 23-27 days. Litters of five to eight young are born in the summer (Stuart 1999). Grey climbing mice are born without hair and undeveloped, weighing about 1 gram. The eyes open 20-24 days after parturition. It then takes another 4-5 weeks for the young to be weaned. It is unknown at what age grey climbing mice reach sexual maturity. Dendromus melanotis has a life span of 3-4 years in captivity, but it is not presently known if this is representative of its life span in the wild (Dieterlen 1990).

Lifespan/Longevity

Average lifespan
Status: captivity

4.2 years
[External Source: AnAge]

Behavior

Grey climbing mice are nocturnal and good climbers. Their prehensile tails and specially adapted toes make them well adapted to climbing slender grass stalks. Grey climbing mice build small ball-shaped nests of grass no more than one meter above the ground (Stuart 1999). These nests are unlined and approximately three inches in diameter. A single individual occupies each nest and enters through a hole in the side (Roosevelt 1915). Grey climbing mice have also been found in abandoned weaver-bird and sunbird nests (Nowak 1999). If frightened while in their nests grey climbing mice leave, only to return shortly after the disturbance ends (Roosevelt 1915). Dendromus melanotis is also known to dig burrows, which are about 30-60 mm deep. These burrows have an open entrance tunnel and an exit hole opposite the entrance tunnel (Nowak 1999). It is believed that grey climbing mice dig burrows to avoid annual fires that occur in the habitat they reside in (Kingdon 1990).

Food Habits

Grey climbing mice are granivorous and insectivorous. Of seven stomachs examined by Dieterlen (1971), three contained a mixture of starchy and fatty seeds, one contained a mixture of seeds and insects, and two contained small beetles. In another study it was found that 100% of the stomachs examined contained seeds and 24% contained Arthropods (Rowe-Rowe 1986).

Economic Importance for Humans: Positive

No documented examples.

Economic Importance for Humans: Negative

No documented examples.

Conservation Status

IUCN Red List [Link]
Least Concern

US Federal List [Link]
No special status

CITES [Link]
No special status

For More Information

Find Dendromus melanotis information at

Contributors

Ben Clauss (author), St. Lawrence University, Erika Barthelmess (editor), St. Lawrence University.

References

"Convention on International Trade in Endangered Species of Wild Fauna and Flora" (On-line). Accessed November 5, 2000 at http://www.cites.org/CITES/eng/index.shtml.

October 26, 2000. "Threatened Animals of the World." (On-line). Accessed October 31, 2000 at http://www.wcmc.org.uk/data/database/rl_anml_combo.html.

September 22, 2000. "U.S. ESA: NatureServe Data for Listed Status in the United States" (On-line). Accessed November 5, 2000 at http://www.natureserve.org/statusus.htm.

Avery, D. 1997. Micromammals on the Holocene environment of Rose Cottage Cave. South African Journal of Science, 93: 445-449.

Dieterlen, F. 1971. Beitrage zur Systematik, Okologie und Biologie der Gattung Dendromus insbesondere ihrer zentralafrikanischen Formen. in East African mammals: an atlas of evolution in Africa. (Kingdon, J.). Chicago: University of Chicago Press.

Dieterlen, F. 1990. Grizmek’s encyclopedia mammals. New York: McGraw-Hill Publishing Company.

Kingdon, J. 1989. East African mammals: an atlas of evolution in Africa. Chicago: University of Chicago Press.

Nowak, . 1999. Walker's mammals of the world. Baltimore and London: The Johns Hopkins University Press.

Roosevelt, T., E. Heller. 1914. Life-Histories of African Game Animals. New York: Charles Scribner's Sons.

Rowe-Rowe, D. 1986. Stomach contents of small mammals from Drakensburg, South Africa. South African journal of wildlife research, 16: 32-35.

Stuart, C. 1999. Field guide to the mammals of southern Africa. Sanibel Island, Fla: Ralph Curtis Books.

To cite this page: Clauss, B. 2003. "Dendromus melanotis" (On-line), Animal Diversity Web. Accessed February 12, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Dendromus_melanotis.html

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

Other formats: OWL

Home  ¦  About Us  ¦  Special Topics  ¦  Teaching  ¦  About Animal Names  ¦  Help

Structured Inquiry Search — preview