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English: Eastern Lowland Gorilla (Gorilla gorilla graueri syn. Gorilla beringei graueri) is found only in Zaire. In 1980 it was estimated that 3000-5000 individuals survived. The main threat to them is forest clearance. Title: The Conservation Atlas of Tropical Forests: Africa Identifier: conservationatla92saye (find matches) Year: 1992 (1990s) Authors: Sayer, J. A. , Harcourt, C. S. , Collins, N. M. Subjects: Publisher: IUCN Contributing Library: UNEP-WCMC, Cambridge Digitizing Sponsor: UNEP-WCMC, Cambridge View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: Case Studies in Conserving Large Mammals mate species. Many classifications place the African forest primates into three families, five subfamilies and about a dozen genera (Table 4.3). Where there has not been heavy hunting by humans, between 10 and 15 primate species commonly live together m areas of African moist lowland and medium-altitude forests within 8° of the Equator. The most species-rich communities occur in the cen- tral forests (that is, from Cameroon to the Great Rift Valley), in areas where topography, river courses or moderate disturbance by humans or large mammals have produced a mosaic forest habitat. Montane forests above about 1500 m are generally less species-rich. Threats to Species Survival The 1986-90 lUCN/SSC Primate Specialist Group Action Plan for African Primate Conservation (referred to here as the PSG Action Plan), rated 29 of the 53 African forest primates (55 per cent) as vulnerable to, or in danger of, extinction (Oates, 1986). The lUCN Red Data Book on Threatened Primates of Africa (Lee er ai, 1988, referred to here as the Red Data Book) lists 47 pre- dominantly forest-living primates, of which 21 (45 per cent) are Text Appearing After Image: The eastern lowland gorilla Gorilla gorilla graueri, i,\ Joiind only in Zaire. In 1980, it zvas estimated that 3000-5000 individuals sunnved. The main threat to them is forest clearance. N. Ellerton Table 4.3 Primate species occurring in tropical lowland rain forest, montane forest and swamp forest in continental Africa. Classification as in Oates (1986) DEGREE OF THREAT Oates Lee et al. (1986)* (1988)** DEGREE OF THREAT 2 K 1 nt 1 nt I nt 2 nt 2 K 3 V 1 nt Family Lorisidae Subfamily Lorisinae Arctocebus calabarensis Perodicticus potto Subfamily Galaginaef Gatago alleni Galago deiiiidovii Galago iniistus Galago thoniasi Galago zanzibanciis Galago elegantulus Family Cercopithecidae Subfamily Cercopithecinae Tribe Papionini Cercocebus atys Cercocebus torquatus Cercocebus galeritiis Cercocebus albigena Cercocebus aterrimus Mandrillus sphinx Mandrillus leucophaeus Tribe Cercopithecini Cercopithecus diana Cercopithecus salongo Cercopithecus neglectus Cercopithecus hanityni Cercopithecus Ihoesti Cercopithecus preussi Cercopithecus solatus Cercopithecus albogularis ISmrcc: Oates, 1986; Lee el at, 1988) * 1 - not known to be threatened; 2 - rare; 3 - vulnerable; 4 - highly vulnerable; 5 - endangered; h - highly endangered. ** nt - not threatened; K - insufficiently known (but suspected to be rare or under threat); R - rare; V - vulnerable; E - endangered. t The taxonomy of the galagos is in the process of revision. Four of the listed species (excluding cUgaiilutm and inialits) are now in the genus Galagoidcs (see Nash ci at., 1989). Galago imisriis has now been renamed O. titatscliici. ^ The Red Data Book does not list cainpbctli and pagamas as distinct species. Since C. imnia is sympatric in Ghana with caiiipbclli and in Nigeria-Cameroon with pogoiiias, they are considered here to be distinct species. This refers to the northern Miopilhccm which Oates (1986) regards as a questionably distinct species. 2 nt 3 V 3 nt 1 nt 3 K 3 V 5 E 4 V 4 V 2 nt 4 V 3 V 5 E 4 V 1 nt Oates Lee et al. (1986)* (1988)** Cercopithecus mitis 1 nt Cercopithecus nictitans 2 nt Cercopithecus petaurista 1 nt Cercopithecus sclaleri 6 - Cercopithecus erythrogaster 5 E Cercopithecus erythrotis 4 E Cercopithecus ceplins I nt Cercopithecus ascanius I nt Cercopithecus campbelli I a Cercopithecus mona 1 nt Cercopithecus pogonias I a Miopithecus talapoin 3 - Miopithecus sp. 1 nt" AUenopithecus nigroviridis 3 K Subfamily Colobinae Procolobiis badius 3 V Procolobus pennanti 5 E Procolobus rufomitratus 3 V Procolobus kirkii 6 E Procolobus gordononan 6 E Procolobus verus 3 R Colobus polykomos 3 nt Colobus vellerosus 3 nt Colobus guereza 1 nt Colobus satanas 4 E Colobus angolensis 1 nt imily Pongidae Pan troglodytes 3 V Pan paniscus 4 V Gorilla gonlla 4 V 37 Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.