Gede Ruins National Monument (6401)
Kenya, Africa
Site overview
KBA status: confirmed
Year of last assessment: 2001
National site name: Gede Ruins National Monument
Central coordinates: Latitude: -3.3000, Longitude: 40.0500
System: terrestrial
Elevation (m): 15 to 15
Area of KBA (km2): 0.43397
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: Gede lies some 94 km north of Mombasa on the Mombasa–Malindi road. A gazetted National Monument since 1927, now managed by the National Museums of Kenya, it protects the excavated ruins of an old Arab-African town, abandoned in the seventeenth century. Over the ruins, on the shallow coral rag soil, has grown a lowland semi-deciduous forest, maintained by a rainfall of around 1,100 mm/year. The 44 ha site, surrounded by farmland, is entirely fenced, and contains around 35 ha of coastal forest, traversed by narrow paths that wind between the excavated buildings. At least 50 indigenous tree species occur, including Gyrocarpus americanus and Sterculia appendiculata. The edge of Arabuko-Sokoke forest (IBA KE007) is c.3 km away to the west.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas)
Additional biodiversity: See Box for key species. Despite its small size, Gede is an important site for the globally threatened Zoothera guttata, a non-breeding visitor. As many as 110 birds may be present between March and October each year. The globally threatened and restricted-range Anthus sokokensis has also been recorded here (possibly as a visitor), though there are no recent records and the population, if still extant, must be tiny. Densities of most other birds are also low, although the listed avifauna is surprisingly diverse—42 forest-dependent species have been recorded, including 12 of Kenya’s 29 East African Coast biome species and the restricted-range Tauraco fischeri, which is resident. Gede is not listed under the biome category, since many of these species may only be occasional visitors. Gypohierax angolensis regularly nest in the tall trees within the main excavation. Regionally threatened species include Pitta angolensis, Turdoides squamulatus, and Erythrocercus holochlorus. Non-bird biodiversity: The small mammal Rhynchocyon chrysopygus (EN), endemic to the northern East African coast, occurs here, formerly at high densities. The plant Phaulopsis gediensis has recently been described from this site.
Habitats
Land use: tourism/recreation | water management
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Forest | 100 |
Threats
Summary of threats to biodiversity at KBA: This is one of the few examples of semi-deciduous forest on coral rag—a distinctive and threatened forest type—that is formally protected in Kenya. The ruined walls and buildings, overgrown with beautiful forest trees, are extremely attractive, and Gede is a popular destination with tourists at the coast. Some 40,000 visitors came here in 1989, though there has been a slight drop-off in the 1990s. The forest is now completely surrounded by farmed land, but up until around the early 1980s there were corridors to other forest patches in the Malindi-Watamu area. Small trees and undergrowth along some trails have been extensively cleared since 1990, which has made the habitat less suitable for Zoothera guttata; however, overall numbers of this species changed little between 1983 and 1992. Local use and disturbance of the forest, formerly a problem, has been controlled by fencing. A pack of guard-dogs now roams the site at night, but unfortunately they have eaten their way through much of the population of Rhynchocyon chrysopygus. The Kipepeo project, which encourages butterfly farming among local communities around Arabuko-Sokoke forest, is based at Gede, where there are butterfly flight and display cages. A 5-ha section of degraded land to the west of the main excavations is now being restored and growing up as forest, through the Gede National Monument Forest Restoration Project (originally the Gede Koningschool Forest Project).
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Agriculture & aquaculture | Livestock farming & ranching | Small-holder grazing, ranching or farming | Ongoing |
| Biological resource use | Hunting & collecting terrestrial animals | Unintentional effects (species being assessed is not the target) | Ongoing |
| Biological resource use | Logging & wood harvesting | Intentional use: subsistence/small scale (species being assessed is the target) [harvest] | Ongoing |
| Invasive & other problematic species, genes & diseases | Invasive non-native/alien species/diseases | Named species | Ongoing |
| Pollution | Excess energy | Noise pollution | Ongoing |
| Residential & commercial development | Housing & urban areas | Ongoing | |
| Residential & commercial development | Tourism & recreation areas | Ongoing | |
| Human intrusions & disturbance | Recreational activities | Ongoing | |
| Human intrusions & disturbance | Work & other activities | Ongoing | |
| Pollution | Garbage & solid waste | Ongoing |
Additional information
References: Bennun (1985, 1987, 1992c), Faden and Faden (1972), Fanshawe (1994), FitzGibbon (1994), Gerhardt and Steiner (1986), Kirkman (1975), Mlingwa et al. (2000), Nicoll and Rathbun (1990), Rathbun (1978, 1979a,b), Robertson (1994), Robertson and Luke (1993), Robertson and Ngonyo (1998).