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Bdeogale omnivora 

Scope: Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Carnivora Herpestidae

Scientific Name: Bdeogale omnivora
Species Authority: Heller, 1913
Common Name(s):
English Sokoke Dog Mongoose, Sokoke Bushy-tailed Mongoose
French Mangouste de Sokoke
Synonym(s):
Bdeogale crassicauda ssp. omnivora Heller, 1913
Taxonomic Notes: Treated as a subspecies of Bdeogale crassicauda by several authors (Sale and Taylor 1970; Wozencraft 1993, 2005), but here treated as distinct following Taylor (2013).

Assessment Information [top]

Red List Category & Criteria: Vulnerable C1 ver 3.1
Year Published: 2016
Date Assessed: 2015-05-12
Assessor(s): Foley, C. & Do Linh San, E.
Reviewer(s): Duckworth, J.W. & Hoffmann, M.
Contributor(s): Taylor, M.E. & Hoffmann, M.
Justification:
Listed as Vulnerable based on a total population containing between 7,000 and 9,400 mature individuals (roughly estimated based on a range area of ca 35,000 km², an average population density highly unlikely to exceed 3–4 individuals/10 km², and a proportion of mature individuals of 67%), with the species believed to have undergone a population decline of more than 10% over the past 10 years (this exceeds the period of three generations, with one generation taken to be three years) because of the impacts of extensive and ongoing habitat loss in the coastal forests of eastern Africa.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Restricted to the coastal forests of Kenya and Tanzania and possibly to mountainous areas near the coast (Taylor 2013). Found from almost sea level (coastal areas) to possibly 1,700 a.s.l. (Magamba, West Usambaras; but see below). In Kenya, the majority of confirmed records are from Gedi, south of Malindi, but other specimens have been collected in Diani Beach, Shimba Hills N. R., Tiwi, Kwale, Mazeras, and Arabuko–Sokoke Forest; observations of this species from coastal parts of northern Kenya have been reported, including close to the Somali border (Taylor 2013). In Tanzania, there are a few old or uncertain records from the West and East Usambaras (Allen and Loveridge 1927, 1942, Göller 2005), and another unsubstantiated record from the Ulugurus (Allen and Loveridge 1927), but these require confirmation because they could very well be the result of confusion with Bushy-tailed Mongoose (Bdeogale crassicauda) (Taylor 2013). This is supported by the fact that specimens reported from the Usambaras were dark or black, with Allen and Loveridge suggesting that they were melanistic forms of B. omnivora, whereas in fact they are far more likely to have been typical B. crassicauda. In any case, camera-trap studies conducted between 2005 and 2009 in North and South Pare, Uluguru, Nguru north and south, Mahenge, Rubeho, and Ukaguru, as well from 2002 to 2014 all over Udzungwa Mtns failed to detect Sokoke Dog Mongoose (F. Rovero pers. comm. 2014). No camera-trapping studies have been conducted along the coast north of the Pangani river, so there is a chance that B. omnivora extends south across the Kenyan border, but there are currently no records to confirm this. Similarly, other camera-trap surveys in the Usambaras (Amani N. R.; C. Foley pers. obs. 2007) as well as on the coast at Sadaani N. P. (C. Foley pers. obs. 2010), did not yield any record of this species. The rare presence of a light, almost orange morph (as opposed to the more common dark morph) of B. crassicauda has however been recorded.
Countries occurrence:
Native:
Kenya; Tanzania, United Republic of
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Extreme fluctuations in area of occupancy (AOO):UnknownEstimated extent of occurrence (EOO) - km2:
Continuing decline in extent of occurrence (EOO):Unknown
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This mongoose is common only locally; it is likely to be declining.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:7000-9400Continuing decline of mature individuals:Yes
Extreme fluctuations:UnknownPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:UnknownAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:Found predominantly through forested habitats on the coast. Has been observed foraging on roads at night after insects, when individuals may sometimes be injured or killed by vehicles (Taylor 2013).
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):3

Use and Trade [top]

Use and Trade: It is unknown whether this species is used as bushmeat.

Threats [top]

Major Threat(s): The population in the Arubuko–Sokoke Forest is under threat from habitat loss because of illegal logging and the Shimba Hills population is potentially under threat from afforestation with non-native pine species together with management for Sable Antelope Hippotragus niger (Schreiber et al. 1989, Engel and Van Rompaey 1995).

Conservation Actions [top]

Conservation Actions: Recorded from several protected areas, including the Shimba Hills N. R. and Arubuko–Sokoke Forest. There is a need to carry out surveys along the Tanzanian coast north of the Pangani river in order to determine whether the species occurs there. Further survey work is also needed to confirm the species identification of records made in the Usambara Mtns, especially in Amani N. R.

Citation: Foley, C. & Do Linh San, E. 2016. Bdeogale omnivora. The IUCN Red List of Threatened Species 2016: e.T136686A45221619. . Downloaded on 29 August 2016.
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