Sites - Important Bird and Biodiversity Areas (IBAs)
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Kenya, Central Province,Eastern Province
37o 20.04' East 0o 10.92' South
A1, A2, A3
1,600 - 5,200m
Year of IBA assessment
Site description An imposing extinct volcano that dominates the landscape of the Kenyan highlands east of the Rift Valley, Mount Kenya lies c.140 km north-north-east of Nairobi, with its northern flanks across the equator. The mountain’s sprawling slopes are cloaked in forest, bamboo, scrub and moorland, giving way on the high central peaks to rock, ice and snow. Mount Kenya is an extremely important water catchment area, supplying the Tana and Northern Ewaso Ngiro systems. The wet south-eastern slopes (with rainfall up to 2,500 mm/year) hold luxuriant rainforest up to 2,400 m, with valuable timber trees such as camphorwood Ocotea usambarensis. Five other main forest-types are recognized, including Newtonia buchananii forest (lower eastern slopes, up to 1,800 m); Juniperus procera–Nuxia congesta–Podocarpus falcatus forest (eastern slopes, to 2,300 m); forest dominated by Croton megalocarpus, Brachylaena huillensis and Calodendrum capense (south-western slopes, up to 1,900 m); more open Juniperus procera–Olea europaea forest (on the drier western and north-western slopes, to c.2,300 m); and mixed Podocarpus latifolius forest (north-western slopes, up to 2,600 m). From c.2,400 m altitude, the forest gives way to dense stands of bamboo Arundinaria alpina, with scattered trees. There is no forest on the dry northern slopes, which receive as little as 800 mm of rain/year and support only scrubby vegetation. Above about 2,850 m, the bamboo merges with an open woodland of Hagenia abyssinica trees and Hypericum shrubs. This in turn grades into Erica heathland above 3,000 m, where ‘everlasting’ flowers, Helichrysum spp., are conspicuous. Above this, the Afro-alpine moorlands are outstanding both scenically and floristically, with giant groundsels Senecio keniodendron and S. johnstonii battiscombei, giant lobelias Lobelia deckenii keniensis and L. telekii, and various tussock grasses. The forest (originally 199,500 ha, of which c.2,520 ha was degazetted in 2001) was gazetted as a Forest Reserve in 1943 and until recently was administered from 15 forest stations in six administrative districts. In July 2000, this area (given in the gazette notice as 21,240 ha) was re-designated as Mount Kenya National Reserve and entrusted to the management of the Kenya Wildlife Service. It has been estimated that c.61,000 ha of the gazetted area was closed-canopy forest. Almost all of this lies between 2,000–2,900 m altitude, with only small fragments on the lowest slopes, down to 1,600 m. Bamboo and bamboo/forest mosaic make up another 63,000 ha, forest and scrub 20,000 ha, with c.20,500 ha of plantations and 35,000 ha of non-forest, including scrub, grassland and cultivation. The National Park covers 71,500 ha, almost entirely above the tree line; it includes all the land above 3,200 m, with two small ‘salients’ extending lower down along the Sirimon and Naro Moru tracks.
Key Biodiversity See Box and Tables 2 and 3 for key species. Mount Kenya has a rich montane bird fauna. It is undoubtedly a stronghold for the threatened and little-known Cinnyricinclus femoralis, even though there are few recent records (probably due to its nomadic nature whilst in search of fruiting trees). Falco naumanni is a passage migrant on the moorland. Euplectes jacksoni can be found in grassland up to 3,000 m, and Macronyx sharpei is known from the north-west slopes, although its present status is uncertain. Regionally threatened species include Bostrychia olivacea (a scarce resident); Gypaetus barbatus (no recent records, but formerly nested on moorland cliffs); Hieraaetus ayresii (a scarce resident); Stephanoaetus coronatus; Tyto capensis (no recent records); Bubo capensis; Campephaga quiscalina (uncommon in montane forest); and Euplectes progne (status uncertain). The rare and little-known race graueri of Asio abyssinicus has been recorded from the high forest. Nectarinia johnstoni is particularly common on the high moorland. Apart from the nearby Nyambeni Hills, Mount Kenya is the only Kenyan site for Poeoptera kenricki.
Non-bird biodiversity: Mammals of global conservation concern include Tragelaphus eurycerus (LR/nt), Diceros bicornis (CR) and Loxodonta africana (EN), together with the uncommon central Kenya race of Cephalophus nigrifrons hooki. Levels of endemism among the small mammals depend on the classification adopted. Notable Mount Kenya taxa include Surdisorex polulus (VU), Tachyoryctes rex (EN), Grammomys gigas (EN), Crocidura allex alpina (VU) and Procavia johnstoni mackinderi. The reptiles Atheris desaixi and Chameleo schubotzi are notable endemics, while Vipera hindii is found only on Mount Kenya and the Aberdare mountains (IBA KE001). The butterfly Capys meruensis is restricted to the Mount Kenya area. Endemics or near-endemics among the alpine flora include Senecio keniodendron (also on the Aberdares), Senecio keniensis keniensis, Lobelia deckenii keniensis and L. bambuseti (also on the Aberdares), Alchemilla argyrophylla and A. cyclophylla (both also on the Aberdares). In the forest, endemics or near-endemics include the rare shrubs Ixora scheffleri keniensis, Pavettahymenophylla, Maytenus keniensis and Embelia keniensis and the climber Rubus keniensis.
References Allan (1981), Beentje (1990), Bennun (1994b), Bennun et al. (in press), Blackett (1994f), Coe (1967), Coe and Foster (1972), Davies and Vanden Berghe (1994), Fairweather (1993), KIFCON (1992), Kokwaro and Beck (1987), Lockwood (1995), Lubanga (1992), Milner et al. (1993), Rehder et al. (1981), Shah and Upadhyaya (1995), Young and Evans (1993).
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BirdLife International (2015) Important Bird Areas factsheet: Mount Kenya. Downloaded from
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