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Cephalophus weynsi

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA MAMMALIA CETARTIODACTYLA BOVIDAE

Scientific Name: Cephalophus weynsi
Species Authority: Thomas, 1901
Common Name/s:
English Weyns' Duiker, Weyn's Duiker
Taxonomic Notes: Often treated as a subspecies of Peter’s Duiker Cephalophus callipygus (e.g., Kingdon 1982, East 1999, Wilson 2001), but here considered a distinct species following Grubb and Groves (2001), Grubb (2005), and Hart (in press).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor/s: IUCN SSC Antelope Specialist Group
Reviewer/s: Mallon, D.P. (Antelope Red List Authority) & Hoffmann, M. (Global Mammal Assessment)
Justification:
Listed as Least Concern as the species remains widespread and common, with an estimated population of more than 150,000. However, they are likely gradually declining due to the effects of hunting. Populations are at higher risk in some East African locations, especially in the isolated forest islands at the eastern edge of the range.

Geographic Range [top]

Range Description: Widespread in DR Congo, including large areas of contiguous range north of the Congo River, from the Ubangui in the west, to western Uganda, western Rwanda and Burundi, and western Tanzania (Mahali Mtns. and Gombe). Also in southern Sudan (Imatong and Dongotona Mtns.), Mt Elgon, and the forests of Kakamega and the Mau Escarpment in western Kenya (Hart in press).
Countries:
Native:
Burundi; Congo, The Democratic Republic of the; Kenya; Rwanda; Sudan; Tanzania, United Republic of; Uganda
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: In the Ituri Forest, Weyns’ Duiker is the second most common duiker species after Blue Duiker Philantomba monticola, with densities of unhunted populations averaging 15 animals/km² (Hart 2000). East (1999) estimated a total population 188,000.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: In its lowland range in DR Congo, the species is restricted to large blocks of closed forest and does not range far out into gallery forests or forest islands in the savanna ecotone; however, in East Africa, they occur in relatively small and isolated forest remnants. In the Ituri Forest, Weyns’ Duiker occurs widely in primary and older secondary forests. Occurs in montane forests up to 3,000 m, reportedly on Mt Elgon (Hart in press).
Systems: Terrestrial

Threats [top]

Major Threat(s): The main threat to this species is hunting (especially with nets), although this species is among the more resilient to hunting pressure (Hart in press).

Conservation Actions [top]

Conservation Actions: Populations of the species occur in a number of protected areas, including the Okapi Faunal Reserve and Maiko and Salonga National Parks (DR Congo), Kibale N. P. (Uganda), Mount Elgon N. P. (Kenya) and Mahala Mountains N. P. (Tanzania) (East 1999).
Citation: IUCN SSC Antelope Specialist Group 2008. Cephalophus weynsi. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 21 April 2014.
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