Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Muridae

Scientific Name: Mastomys pernanus
Species Authority: (Kershaw, 1921)
Common Name(s):
English Dwarf Mastomys, Dwarf Multimammate Mouse

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Granjon, L., van der Straeten, E., Corti, M. & Agwanda, B.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Cox, N. (Global Mammal Assessment Team)
Listed as Data Deficient since, the distribution of Mastomys pernanus was thought to be restricted until the recent discovery of a specimen 550 km south of the known range. The habitat between the two areas is thought to be continuous and potentially favorable. The species is not abundant when trapping, but evidence of the species is found in owl pellets. It may be that the species is more common than thought and it is just the trapping techniques used that are unsuitable for catching this species.
Previously published Red List assessments:
2004 Data Deficient (DD)
2002 Data Deficient (DD)
1996 Vulnerable (VU)
1994 Insufficiently Known (K)

Geographic Range [top]

Range Description: Published records for this species are from southwestern Kenya, northern Tanzania and Rwanda. The Rwanda records are from owl pellets (six to seven specimens). It is a lowland species.
Countries occurrence:
Kenya; Rwanda; Tanzania, United Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is known from very few specimens, and from the low trapping success, it appears to be uncommon to rare, however, this may be an artefact of the methodology used.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It is found in moist savanna. This does not appear to be a commensal species.
Systems: Terrestrial

Threats [top]

Major Threat(s): The habitat is being fragmented, but not enough to consider this a major threat. Likewise, fire is part of the natural cycle and not a major threat (one of the areas where this species was recorded was burnt, completely transforming the habitat and the fauna).

Conservation Actions [top]

Conservation Actions: There are protected areas in the region that this species might occur in (e.g., Akagera Park in Rwanda).

Citation: Granjon, L., van der Straeten, E., Corti, M. & Agwanda, B. 2008. Mastomys pernanus. The IUCN Red List of Threatened Species 2008: e.T12863A3391676. . Downloaded on 14 October 2015.
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