Sicista severtzovi 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Dipodidae

Scientific Name: Sicista severtzovi (Ognev, 1935)
Common Name(s):
English Severtzov's Birch Mouse
Taxonomic Notes: Formerly considered as a subspecies of Sicista subtilis, but now recognized as a separate species primarily on the basis of karyotype (Wilson and Reeder 2005 and references therein).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-08-06
Assessor(s): Tsytsulina, K., Formozov, N., Sheftel, B. & Zagorodnyuk, I.
Reviewer(s): Amori, G.
This species is naturally scarce and has only a moderately large range, although its Extent of Occurrence does not approach the threshold for the range size criterion of the IUCN Red List. The population size has not been quantified, but it is not believed to approach the thresholds for the population size criterion of the IUCN Red List (i.e. less than 10,000 mature individuals in conjunction with appropriate decline rates and subpopulation qualifiers). Population trends have not been quantified, but there is no evidence to suggest significant declines. For these reasons, it is evaluated as Least Concern.
Previously published Red List assessments:

Geographic Range [top]

Range Description:SW Russia and E Ukraine (Shenbrot et al. 1995, Wilson and Reeder 2005).
Countries occurrence:
Russian Federation; Ukraine
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There are no data on population size. The species is naturally not abundant, but there is no evidence of population decline.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The species is poorly studied, has a scattered distribution, and is solitary and naturally scarce across the whole range. Distributed in steppe and forest-steppe zones and associated with meadows with high grasses. Feeds on seeds and insects. Reproduces once a year, after hibernation.
Generation Length (years):2
Congregatory:Congregatory (and dispersive)

Threats [top]

Major Threat(s): The major threat to the species is habitat destruction, as the soil in its preferred habitats tends to be very good for cultivation.

Conservation Actions [top]

Conservation Actions: No specific conservation measures apply to this species, however it occurs in Tsentralno-Chernozemnyi State Reserve in Russia. Severtzov's birch mouse is listed in the Ukraine Red Data Book as a subspecies of Sicista subtilis under category III (rare but not threatened species).

Citation: Tsytsulina, K., Formozov, N., Sheftel, B. & Zagorodnyuk, I. 2016. Sicista severtzovi. The IUCN Red List of Threatened Species 2016: e.T20192A2729967. . Downloaded on 20 January 2018.
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