IUCN threat status:

Critically Endangered (CR)

Distribution

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Range Description

Aders' Duiker occurs on the main island of Unguja, Zanzibar, as a near endemic since, although the species has been described by Kingdon (1982) as widespread in the forests, woodland and thickets north of Mombasa (Kenya) almost up to the Somali border, in the light of rapidly shrinking suitable habitat, it would appear the population has succumbed to a severe decline in numbers. In the Arabuko-Sokoke Forest, northwest of Kilifi (Kenya), the species is still present, but very few substantiated sightings are made each year. This forest covers approximately 416.8 km². In 2004, what is thought to be an Aders' Duiker was sighted in the Dodori National F.R. north of the Tana River Delta on the north Kenya coast (Andanje and Wacher 2004).

There is a possibility that Aders' Duiker may have once occurred on Fundo Island, off the coast of Pemba Island (Williams 1998)) and is reported to have been introduced on to Funzi Island, Pemba (Kingdon 1997), but has since become extinct on both these islands. Archer and Mwinyi (1995) mention, "unconfirmed?(but) reliable reports (which) indicate a thriving population on Tumbatu Island". Further confirmation of this is yet to be forthcoming.

In February 2000, five Aders' Duikers were translocated to Chumbe Island from mainland Zanzibar, where a female was already in place.

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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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