Body size, diet and population density in Afrotropical forest mammals: A comparison with neotropical species

Journal of Animal Ecology

Volumn 66, Issue 1, 1997, Pages 98-112

  Fa, John E ^a   Purvis, Andy ^b  

^a Jersey Wildlife Preservation Trust   (United Kingdom)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

Africa; body size; comparison with neotropics; diet; forest mammals; independent contrasts; population density

Indexed keywords

BODY SIZE; DENSITY; DIET; FOREST MAMMAL; MAMMAL; MYRMECOPHAGY;

AFRICA;

EID: 0030621377     PISSN: 00218790     EISSN: None     Source Type: Journal    
DOI: 10.2307/5968     Document Type: Article

References (173)

1. Allard, M.W., Miyamoto, M.M., Jarecki, L., Kraus, F. & Tennant, M.R. (1992) DNA systematics and the evolution of the artiodactyl family Bovidae. Proceedings of the National Academy of Science USA, 89, 3972-3976.
2. Andrewartha, H.G. & Birch, L.C. (1954) The Distribution and Abundance of Animals. University of Chicago Press, Chicago.
3. Banse, K. & Mosher, S. (1980) Adult body mass and annual production/biomass relationships of field populations. Ecological Monographs, 50, 355-379.
4. Blackburn, T.M., Brown, V.K., Doube, B.M., Greenwood, J.J.D., Lawton, J.H. & Stork, N.E. (1993) The relationship between abundance and body size in natural animal assemblages. Journal of Animal Ecology, 62, 519-528.
5. Bourliere, F. (1973) The comparative ecology of rain forest mammals in Africa and tropical America: some introductory remarks. Tropical Forest Ecosystems in Africa and South America: a Comparative Review (eds B. J. Meggers, E. S. Ayensu & W. D. Duckworth), pp. 279-292. Smithsonian Institution Press, Washington DC.
6. Bourliere, F. (1985) Primate communities: their structure and role in tropical ecosystems. International Journal of Primatology, 6, 1-26.
7. Charles-Dominique, P. (1978) Ecologie et vie sociale de Nandinia binotata carnivores, viverrides): comparaison avec les prosimiens sympatriques du Gabon. Terre Vie (Revue d'Ecologie), 32, 477-528.
8. Damuth, J. (1981) Population density and body size in mammais. Nature, 290, 699-700.
9. Damuth, J. (1987) Interspecific allometry of population den sity in mammals and other animals: the independence of body mass and population energy use. Biological Journal of the Linnean Society, 31, 193-246.
10. Damuth, J. (1991) Of size and abundance. Nature, 351, 268-269.
11. Delany, M.J. & Happold, D.C.D. (1979) Ecology of African Mammals. Longman, London.
12. Dubost, G. (1975) Le comportement du chevrotain africain Hyemoschus aquaticus Ogilby Artiodactyla (Ruminantia) La signification cologique et phylognetique. Zielschrift Tierpsychologie, 37, 403-501.
13. Dubost, G. (1979) The size of African forest artiodactyls, as determined by the vegetation structure. African Journal of Ecology, 17, 1-17.
14. Dubost, G. (1980) Comparison of the diets of frugivorous forest ruminants of Gabon. Journal of Mammalogy, 65, 298-316.
15. Dubost, G. (1983) Le comportement de Cephalophus monticola Thunberg et C. dorsalis Gray, et la place des cephalophes au sein des ruminants, Part 1. Mammalia, 47, 141-177.
16. Eisenberg, J.F. (1979) Habitat, economy, and sociality: some correlations and hypotheses from the neotropical primates. Primate Ecology and Human Origins (eds I. O. Bernstein & I. O. Smith), pp. 215-262. Garland STPM Press, New York.
17. Eisenberg, J.F. (1981) The Mammlian Radiations. University of Chicago Press, Chicago.
18. Eisenberg, J.F., O'Connell, M. & August, P.V. (1979) Density, productivity, and distribution of mammals in two Venezuelan habitats. Vertebrate Ecology in the Northern Neotropics (ed. J. F. Eisenberg), pp. 215-262. Smithsonian Institution Press, Washington DC.
19. Emmons, L.H. (1980) Ecology and resource partitioning among nine species of African squirrels. Ecological Monographs, 50, 31-54.
20. Engelman, G.F. (1985) The phytogeny of the Xenarthra. The Evolution and Ecology of Armadillos, Sloths and Vermilinguas (ed. G. G. Montgomery), pp. 51-64. Smithsonian Institute Press, Washington DC.
21. Feer, F. (1979) Observations cologiques sur le notrague de Bates Neotragus batesi De Winton 1903, Artiodactyle, Ruminant (Bovid) du nordest du Gabon. Terre Vie, 33, 159-239.
22. Fleming, T.H., Breitwisch, R. & Whitesides, G. (1987) Patterns of tropical vertebrate frugivore diversity. Annual Review of Ecology and Systematics, 18, 91-109.
23. Garland, T.J., Dickerman, A.W., Janis, C.M & Jones, J.A. (1993) Phylogenetic analysis of covariance by computer simulation. Systematic Biology, 42, 265-292.
24. Garland, T.J., Harvey, P.H. & Ives, A.R. (1992) Procedures for the analysis of comparative data using independent contrasts. Systematic Biology, 41, 18-32.
25. Gautier-Hion, A., Emmons, L.H. & Dubost, G. (1980) A comparison of the diets of three major groups of primary consumers of Gabon (primates, squirrels and ruminants). Oecologia, 45, 182-189.
26. Gentry, A.W. & Hooker, J.J. (1988) The phytogeny of the Artiodactyla. The Phytogeny and Classification of the Tetrapods, Vol. 2: Mammals (ed. M. J. Benton), pp. 235-272. Clarendon Press, Oxford.
27. Hladik, A. (1986) Donnees comparatives sur la richesse specifique et les structures des peuplements des forts tropicales d'Afrique et d'Amerique. Vertébrés et Forêts Tropicales Humides dAfrique et d'Amerique (ed. J. P. Gasc), pp. 9-17. Memoires du Museum National d'Histoire Naturelle, Serie A. Zoologie 132.
28. Harrison, M.J.S. (1986) Feeding ecology of black colobus, Colobus satanas, in central Gabon. Primate Ecology and Conservation (eds J. Else & P. C. Lee), pp. 31-37. Cambridge University Press, Cambridge.
29. Harrison, M.J.S. & Hladik, M. (1986) Un primate granivore: le colobe noir dans la foret de Gabon; potentialite devolution du comportement alimentaire. Revue dEcologie (Terre et Vie), 41, 281-298.
30. Harvey, P.H. & Pagel, M.D. (1991) The Comparative Method in Evolutionary Biology. Oxford University Press, Oxford.
31. Janzen, D.H. & Martin, P.S. (1982) Neotropical anachronisms, the fruits of the gomphoteres ate. Science, 215, 19-27.
32. Mohr, C.O. (1940) Comparative populations of game, fur and other mammals. American Midland Naturalist, 24, 581-584.
33. Myers, N. (1976) The Leopard in Africa. IUCN Monograph no. 5. International Union for Conservation of Nature and Natural Resources, Merges.
34. Novacek, M.J. (1992) Mammalian phylogeny: shaking the tree. Nature, 356, 121-125.
35. Payne, J.C. (1992) A field study of techniques for estimating densities of Duikers in Korup National Park, Cameroon. MSc thesis, University of Florida.
36. Peters, R.H. (1983) The Ecological Implications of Body Size. Cambridge Studies in Ecology, Cambridge University Press, Cambridge.
37. Peters, R.H. & Raelson, J.V. (1984) Relations between individual size and mammalian population density. American Naturalist, 124, 498-517.
38. Prins, H.H.T. & Reitsma, J.M. (1989) Mammalian biomass in an African equatorial rain forest. Journal of Animal Ecology, 58, 851-861.
39. Purvis, A. (1995) A composite estimate of primate phylogeny. Philosophical Transactions of the Royal Society of London, Series B (Biological Sciences), 348, 405-421.
40. Purvis, A. & Rambaut, A. (1995) Comparative analysis by independent contrasts (CAIC): an Apple Macintosh application for analysing comparative data. Computer Applications in Bioscience, 11, 247-251.
41. Reig, O.A., Kirsch, J.A.W. & Marshall, L.G. (1987) Systematic relationships of the living and Neocenozoic American 'opossum-like' marsupials (suborder Didelphimorphia) with comments on the classification of these and the Cretaceous and Paleogene New World and European metatherians. Possums and Opossums: Studies in Evolution (ed. M. Archer), pp. 1-89. Surrey Beatty & Sons Pty Ltd, Chipping Norton, NSW.
42. Robinson, J.G. & Redford, K.H. (1986) Body size, diet and population density of Neotropical forest mammals. American Naturalist, 128, 665-680.
43. Sarich, V.M. (1986) Rodent molecular systematics. Evolutionary Relationships Among Rodents: a Multidisciplinary Analysis. NATO ASI Series A92 (eds W. P. Luckett & J.L. Hartenberger), pp. 423-452. Plenum Press, New York.
44. Tutin, C.E.G. & Fernandez, M. (1984) Nationwide census of gorilla (Gorilla g. gorilla) and chimpanzee (Pan t. troglodytes) populations in Gabon. American Journal of Primatology, 6, 313-336.
45. White, F. (1983) The Vegetation of Africa: a Descriptive Memoir to Accompany the Unesco/AETFAT/UNESCO Vegetation Map of Africa. Unesco, Paris.
46. White, L.J.T. (1994) Biomass of rain forest mammals in the Lop Reserve, Gabon. Journal of Animal Ecology, 63, 499-512.
47. Ajayi, S.S. (1974) The biology and domestication of the African giant rat Cricetomys gambianus Waterhouse. PhD thesis, University of Ibadan.
48. Aldrich-Blake, F.P.G. (1968) The ecology and behaviour of the blue monkey Cercopithecus mitis stuhlmanni. PhD thesis, University of Bristol.
49. Alers, M.P.T., Blom, A., Sikubwabo Kiyengo, C., Masunda, T. & Barnes, R.F.W. (1992) Preliminary assessment of the status of the forest elephant in Zaire. African Journal of Ecology, 30, 279-291.
50. Booth, A.M. (1957) Observations on the natural history of the olive colobus Procolobus verus van Beneden. Proceedings of the Zoological Society of London, 129, 421-430.
51. Bourliere, F. (1985) Primate communities', their structure and role in tropical ecosystems. International Journal of Primatology, 6, 1-26.
52. Brennan, E.J. (1985) De Brazzas (Cercopithecus neglectus) in Kenya. Census distribution and conservation. American Journal of Primatology, 8, 269-277.
53. Brosset, A. (1966) Recherches sur la composition qualitative et quantitative des populations des vertebres dans la forêt primaire du Gabon. Biologia Gabonica, 2, 163-177.
54. Butynski, T. (1990) Comparative ecology of blue monkeys (Cercopithecus mitis) in high-and low-density sub-populations. Ecological Monographs, 60, 1-26.
55. Cashner, F.M. (1974) The ecology of Cercocebus albigena and C. torquatus in Rio Muni, Republic of Equatorial Guinea, West Africa. PhD thesis, Tulane University, Louisiana.
56. Chalmers, N. (1967) The ethology and social organisation of the black mangabey, Cercocebus albigena. PhD thesis, University of Cambridge.
57. Chalmers, N. (1968) Group composition, ecology and daily activities of free living mangabeys in Uganda. Folia Primatologica, 8, 247-262.
58. Charles-Dominique, P. (1971) Eco-ethologie des prosimiens du Gabon. Biologia Gabonica, 7, 121-228.
59. Charles-Dominique, P. (1972) Ecologie et vie sociale de Galago demidovii. Zietschrift Tierpsychologie, 9, 7-41.
60. Charles-Dominique, P. (1974) Vie sociale de Perodictuspotto Primates, Lorisidae): etude de terrain au fort equatoriale de louest Africain au Gabon. Mammalia, 38, 355-379.
61. Charles-Dominique, P. (1978) Ecologie et vie sociale de Nandinia binotata carnivores, viverrides): comparaison avec les prosimiens sympatriques du Gabon. Terre Vie (Revue d'Ecologie), 32, 477-528.
62. Churchfield, S. (1982) A note on the diet of the African musk shrew. Acta Theriologica, 27, 347-360.
63. Clutton-Brock, T.H. (1972) Feeding and ranging behaviour of the red colobus monkey. PhD thesis. University of Cambridge.
64. Clutton-Brock, T.H. (1974) Primate social organisation and ecology. Nature, 250, 539-542.
65. Coe, M.J. & Foster, J.B. (1972) The mammals of the northern slopes of Mt Kenya. Journal of the East African Natural History Society Museum, 131, 1-18.
66. Cole, L.R. (1975) Foods and foraging places of rats Rodentia: (Muridae) in the lowland evergreen forest of Ghana. Journal of Zoology (London), 175, 453-471.
67. Cords, M. (1984) Mixed species groups of Cercopithecus monkeys in the Kakamega Forest, Kenya. PhD thesis, University of California, Berkeley.
68. Cords, M. (1986) Interspecific and intraspecific variation in diet of two forest guenons Cercopithecus ascanius and Cercopithecus mitis. Journal of Animal Ecology, 55, 811-827.
69. Dekeyser, P.L. (1955) Les Mammifres de l'Afrique Noire Française. IFAN, Dakar.
70. Delany, M.J. (1975) The Rodents of Uganda. British Museum (Natural History), London.
71. Delany, M.J. & Neal, B.R. (1966) A review of the muridae order (Rodentia) of Uganda. Bulletin of the British Museum, Zoology, 13, 295-355.
72. Devos, A. & Omar, A. (1971) Territories and movemements of Sykes monkeys (Cercopithecus mitis kolbi Neuman) in Kenya. Folia Primatologica, 16, 196-205.
73. Dierterlen, F. (1967) Jahreszeiten und fortpflanzungsperioden bei den muriden des Kivusee-Gebietes (Congo) I. Ein beitrag zum problem der population-dynamik in tropen. Zietscrift Sugetierkunde, 32, 1-44.
74. Dierterlen, F. (1971) Beitrage zur systematik, kologie und biologie der gattung Dendromus Dendromurinae, Cricetidae (Rodentia) inbesondere ihrer zentralafrikanischen Formen. Sugetierkunde Mittellande, 19, 97-132.
75. Dierterlen, F. (1976) Die afrikanische Muridengattung Lophuromys (Peters 1874). Stuttgartern Beitrage Naturk Serie A, 285, 1-96.
76. Dierterlen, F. & Heim de Balsac, H. (1979) Zur kologie und taxonomie der spitzmause (Soricidae) des Kivu-Gebietes. Sugetierkunde Mitlellande, 27, 241-287.
77. Dubost, G. (1975) Le comportement du chevrotain africain Hyemoschus aquaticus Ogilby Artiodactyla (Ruminantia) La signification cologique et phylognetique. Zietschrift Tierpsychologie, 37, 403-501.
78. Dubost, G. (1980) Comparison of the diets of frugivorous forest ruminants of Gabon. Journal of Mammalogy, 65, 298-316.
79. Dubost, G. (1983) Le comportement de Cephalophus monticola Thunberg et C. dorsalis Gray, et la place des cephalophes au sein des ruminants, Part I. Mammalia, 47, 141-177.
80. Dudley, J.P., Mensah-Ntiamoah, A.Y. & Kpelle, D.G. (1992) Forest elephants in a rainforest fragment, preliminary findings from a wildlife conservation project in southern Ghana. African Journal of Ecology, 30, 116-126.
81. Dunbar, R.I.M. (1987) Habitat quality, population dynamics, and group composition in colobus monkeys (Colobus guereza). International Journal of Primatology, 8, 299-330.
82. Dunbar, R.I.M. & Dunbar, P. (1974) Ecology and population dynamics of Colobus guereza in Ethiopia. Folia Primatologica, 21, 188-208.
83. Emmons, L.H. (1983) A field study of the African brush-tailed porcupine, Aethurus africanus, by radiotelemetry. Mammalia, 47, 183-194.
84. Estes, R.D. (1991) The Behavior Guide of African Mammals. California University Press, Berkeley.
85. Fay, J.M. & Agnagna, M. (1991) A population survey of forest elephants (Loxodonta africana cyclotis) in northern Congo. African Journal of Ecology, 29, 177-187.
86. Fay, J.M., Agnagna, M., Moore, J. & Oko, R. (1993) Gorillas (Gorilla gorilla gorilla) in the Likouala swamp forests of north central Congo: preliminary data on populations and ecology. International Journal of Primatology, 10, 477-486.
87. Feer, F. (1979) Observations écologiques sur le néotrague de Bates Neotragus batesi De Winton 1903, Artiodactyle, Ruminant (Bovid) du nordest du Gabon. Terre Vie, 33, 159-239.
88. Feer, F. (1988) Comparaison des regimes alimentaires de Cephalophus callipygus et C. dorsalis, Bovides sympatriques de la fort sempervirente africaine. Mammalia, 53, 563-604.
89. Feer, F. (1993) The potential for sustainable hunting and rearing of game in tropical forest. Tropical Forests, People and Food: Biocultural Interactions and Applications to Development (eds C. M. Hladik, A. Hladik, O. F. Linares, H. Pagezy, A. Semple & M. Hadley), pp. 691-708. Man and the Biosphere Series, Parthenon Publishing, Paris.
90. Field, C.R. (1972) The food habits of wild ungulates in Uganda by analyses of stomach contents. East African Wildlife Journal, 10, 17-42.
91. Freeland, W.J. (1979) Mangabey (Cercocebus albigena): social organisation and population density in relation to food use and availability. Folia Primatologica, 32, 108-124.
92. Galat, G. & Galat-Luong, A. (1985) La communaute de primates diurnes de la foret de Tai, Cote dIvoire. Terre Vie, 40, 3-32.
93. Gautier-Hion, A. (1971) Leaf consumption by monkeys in western and eastern Africa: a comparison. African Journal of Ecology, 21, 107-113.
94. Gautier-Hion, A. (1980) Seasonal variations of diet related to species and sex in a community of Cercopithecus monkeys. Journal of Animal Ecology, 49, 237-269.
95. Gautier-Hion, A. (1988) The diet and dietary habits of forest guenons. A Primate Radiation: Evolutionary Biology of the African Guenons (eds A. Gautier-Hion, F. Bourliere, J. P. Gautier & J. Kingdon), pp. 257-283. Cambridge University Press, Cambridge.
96. Gautier-Hion, A. & Gautier, J.P. (1978) Le singe de Brazza: une strategie originale. Zietschrift Tierpsychologie, 46, 84-108.
97. Gautier-Hion, A. & Gautier, J.P. (1985) Sexual dimorphism, social units and ecology among sympatric forest guenons. Human Sexual Dimorphism (eds J. Guesquire, R. D. Martin & F. Newcombe), pp. 61-77. Taylor and Francis, London.
98. Gevaerts, H. (1992) Birth seasons of Cercopithecus, Cercocebus and Colobus in Zaire. Folia Primatologica, 59, 105-113.
99. Goodall, A.J. (1977) Feeding and ranging behaviour of a mountain gorilla group (Gorilla gorilla beringei) in the Tshibinda-Kahuzi region (Zaire). Primate Ecology (ed. T. H. Clutton-Brock), pp. 449-479. Academic Press, London.
100. Groves, C.P. (1970) Population systematics of the gorilla. Journal of Zoology (London), 161, 287-300.
101. Ham, R.M. (1994) Behaviour and ecology of grey-cheeked managabeys (Cercocebus albigena) in the Lopé Reserve, Gabon. PhD thesis, University of Stirling.
102. Happold, D.C.D. (1973) Large Mammals of West Africa. Longman, London.
103. Happold, D.C.D. (1974) The small rodents of the forest-savanna-farmland association near Ibadan, Nigeria with observations on reproduction biology. Revue Zoologica Africana, 88, 814836.
104. Happold, D.C.D. (1987) The Mammals of Nigeria. Oxford University Press, Oxford.
105. Happold, D.C.D. & Happold, M. (1989) Biogeography of montane small mammals in Malawi. Journal of Biogeography, 16, 353-367.
106. Harrison, M.J.S. (1986) Feeding ecology of black colobus, Colobus satanas, in central Gabon. Primate Ecology and Conservation (eds J. Else & P. C. Lee), pp. 31-37. Cambridge University Press, Cambridge.
107. Harrison, M.J.S. & Hladik, M. (1986) Un primate granivore: le colobe noir dans la foret de Gabon; potentialite devolution du comportement alimentaire. Revue d'Ecologie (Terre et Vie), 41, 281-298.
108. Hart, J.A. (1986) Comparative dietary ecology of a community of frugivorous forest ungulates in Zaire. PhD thesis, Michigan State University.
109. Hart, J.A. & Hart, T.B. (1989) Ranging and feeding behaviour of the okapi (Okapia johnstoni) in the Ituri Forest of Zaire, food limitation in a rain-forest herbivore. The Biology of Large African Mammals in their Environment (eds P. Jewell & G. M. O. Maloiy), pp. 31-50. Symposia of the Zoological Society of London 61. Academic Press, London.
110. Henzi, S.P. & Lawes, M. (1987) Breeding season influxes and the behaviour of adult male samango monkeys (Cercopithecus mitis albogularis). Folia Primatologica, 48, 125-136.
111. Heymans, J.C. & Lejoly, J. (1981) Sur la rpartition des Cephalophinae en fort ombrophile (Rgion du Haut-Zare, Rp. du Zaire) (Bovidae). Revue Zoologica Africana, 95, 1-10.
112. Homewood, K. (1978) Feeding strategy of the Tana mangabeys Cercocebus galeritus gateritus (Mammalia: Primates). Journal of Zoology (London), 186, 375-391.
113. Horn, A.D. (1987) The socioecology of the black mangabeys (Cercocebus aterrimus) near Lake Tumba, Zaire. American Journal of Primalology, 12, 165-180.
114. Hunkeler, C. & Hunkeler, P. (1970) Besoins nergtiques de quelques crocidures de Cote dlvoire. Terre Vie, 24, 449-456.
115. Hutterer, R. & Happold, D.C.D. (1983) The shrews of Nigeria (Mammalia: Soricidae). Bonner Zoologische Monographien 18. Zoologisches Forschunginstitut und Museum Alexander Koenig, Bonn.
116. Isabiriye-Basuta, G. & Kasenene, J.M. (1987) Small rodent populations in selectively felled and mature tracts of Kibale Forest, Uganda. Biotropica, 19, 260-267.
117. Jachmann, H. (1991) Evaluation of four survey methods for estimating elephant densities. African Journal of Ecology, 29, 188-195.
118. Jones, C. & Sabater-Pi, J. (1971) Comparative ecology of (Gorilla gorilla Savage & Wyman) and Pan troglodytes (Blumenbach) in Rio Muni. Bibliotheca Primatologica 13. Karger, Basle.
119. Koster, S. & Hart, J.A. (1988) Methods of estimating ungulate populations in tropical forests. African Journal of Ecology, 26, 117-126.
120. McKey, D.B. & Waterman, P.G. (1982) Ranging behaviour of a group of black colobus (Colobus satanas) in the Douala-Edea Reserve, Cameroon. Folia Primatologica, 39, 264-304.
121. McKey, D.B., Gartlan, J.S., Waterman, P.G. & Choo, G.M. (1982) Food selection by black colobus monkeys (Colobus satanas) in relation to plant chemistry. Biological Journal of the Linnean Society, 16, 115-146.
122. Marsh, C. (1981) Diet choice among red colobus (Colobus badius rufomitratus) on the Tana River. Folia Primatologica, 35, 147-148.
123. Merz, G. (1986a) The status of the forest elephants Loxodonta africana cyclotis, Matschie, 1900, in the Gola Forest Reserve, Sierra Leone. Biological Conservation, 36, 83-94.
124. Merz, G. (1986b) Counting elephants (Loxodonta africana cyclotis) in tropical rain forests with particular reference to the Tai National Park, Ivory Coast. African Journal of Ecology, 24, 61-68.
125. Mitani, M. (1991) Niche overlap and polyspecific associations among sympatric Cercopithecids in the Campo animal reserve, Southwestern Cameroon. Pimates, 32, 137-151.
126. Myers, N. (1976) The Leopard in Africa. IUCN Monograph no. 5. International Union for Conservation of Nature and Natural Resources, Morges.
127. Napier, P.H. (1981) Catalogue of Primates in the British Museum Natural History) and Elsewhere in the British Isles. Part II: Family Cercopithecidae, Subfamily Cercopithecinae. British Museum (Natural History), London.
128. Napier, P.H. (1985) Catalogue of Primates in the British Museum (Natural History) and Elsewhere in the British Isles. Part III: Family Cercopithecidae, Subfamily Colobinae. British Museum (Natural History), London.
129. Oates, J.F. (1977) The guereza and its food. Primate Ecology (ed. T. H. Clutton-Brock), pp. 275-321. Academic Press, London.
130. Oates, J.F. (1988) The diet of the olive colobus Procolobus verus in Sierra Leone. International Journal of Primatology, 9, 457-478.
131. Oates, J.F., Whitesides, G.H., Davies, A.G., Waterman, P.G., Green, S.M., Dasilva, G.L. & Mole, S. (1990) Determinants of variation in tropical forest primate biomass: new evidence from West Africa. Ecology, 7, 328-343.
132. Owen, J. (1973) Behaviour and diet of Neotragus pygmaeus L. Mammalia, 37, 56-65.
133. Owen, R.E.A. (1970) Some observations of Sitatunga in Kenya. East African Wildlife Journal, 8, 181-195.
134. Payne, J.C. (1992) A Field Study of Techniques for Estimating Densities of Duikers in Korup National Park, Cameroon. MSc thesis, University of Florida.
135. Plumptre, N. & Reynolds, V. (1995) The impact of selective logging on the primate populations in the Budongo forest reserve, Uganda. Journal of Applied Ecology, 31, 631-641.
136. Quris, R. (1975) Ecologie et organisation sociale de Cercocebus galeritus agilis dans le nord-est du Gabon. Terre Vie, 29, 337-398.
137. Rahm, U. (1956) Beobachtungen an Atherurus africanus (Gray) an der Elfenbeinkste. Acta Tropical, 13, 86-94.
138. Rahm, U. (1962) Biologie und Verbreitung des afrikanischen Quastenstachlers Atherurus africanus Gray (Hystricomorpha). Revue Suisse de Zoologie, 69, 344-359.
139. Rahm, U. (1966) Les mammiferes de la fort equatoriale de l'Est du Congo. Annales d'Musee Royale d'Afrique centrale Ser. 8, 149, 39-121.
140. Rahm, U. (1967) Les murides des environs du Lac Kivu et des regions voisines (Afrique centrale) et leur ecologie. Revue Suisse de Zoologie, 74, 439-519.
141. Rahm, U. (1972) Zur kologie der muriden in regenwaldgebiet des ostlichen Kongo Zaire. Revue Suisse de Zoologie, 79, 1121-1130.
142. Rogers, M.E., Maisels, F., Williamson, E.A., Fernandez, M. & Tutin, C.E.G. (1990) Gorilla diet in the Lop Reserve, Gabon: a nutritional analysis. Oecologia, 84, 326-339.
143. Rosevear, D.R. (1969) The Rodents of West Africa. British Museum (Natural History), London.
144. Rosevear, D.R. (1974) The Carnivores of West Africa. British Museum (Natural History), London.
145. Rowell, T.E. (1966) Forest-living baboons in Uganda. Journal of Zoology (London), 149, 344-364.
146. Rudran, R. (1978) Socioecology of the blue monkey Cercopithecus mitis stuhlmanni of the Kibale Forest, Uganda. Smithsonian Contributions to Zoology 249. Smithsonian Press, Washington.
147. Sabater-Pi, J. (1979) Feeding behaviour and diet of chimpanzees (Pan troglodytes troglodytes) in the Okorobik Mountains of Rio Muni (West Africa) Zietshrift Tierpsychologie, 50, 265-281.
148. Schaller, G.B.G. (1963) The Mountain Gorilla. University of Chicago Press, Chicago.
149. Schenkel, R. & Schenkel-Hulliger, L. (1967) On the sociology of free-ranging colobus Colobus guereza caudatus Thomas (1885). Progress in Primatology (eds D. Starck, R. Scheider & H. J. Kuhn), pp. 185-194. Karger, Basle.
150. Scorer, J. (1980) Some factors affecting the feeding ecology and socio-biology of the samango monkey Cercopithecus albogularis schwarzi Roberts 1931. PhD thesis, University of Pretoria.
151. Sinclair, A.R.E. & Gwynne, M.D. (1972) Food selection and competition in the East African buffalo Syncerus caffer (Sparrman). East African Wildlife Journal, 10, 77-89.
152. Skinner, J.D. & Smithers, R.H.N. (1990) The Mammals of the Southern African Subregion, 2nd edn. University of Pretoria, Pretoria.
153. Struhsaker, T.T. (1969) Correlates of ecology and social organization among African cercopithecines. Folia Primatologica, 11, 80-118.
154. Struhsaker, T.T. (1975) The Red Colobus Monkey. Chicago University Press, Chicago.
155. Struhsaker, T.T. & Leland, L. (1979) Socioecology of five sympatric monkey species in the Kibale forest Uganda Advances in the Study of Behaviour, 9, 159-227.
156. Sugiyama, Y. (1968) Social organisation of chimpanzees in the Budongo Forest, Uganda. Primates, 9, 225-258.
157. Suzuki, A. (1979) The variation and adaptation of social groups of chimpanzees and black and white colobus monkeys. Primate Ecology and Human Origins (eds I. Bernstein & E. O. Smith), pp. 153-173. Garland STPM, New York.
158. Thomas, S.C. (1991) Population densities and patterns of habitat use among anthropoid primates of the Ituri foret. Zaire. Biotropica, 23, 68-83.
159. Tutin, C.E.G. & Fernandez, M. (1984) Nationwide census of gorilla (Gorilla g. gorilla) and chimpanzee (Pan t. troglodytes) populations in Gabon. American Journal of Primatology, 6, 313-336.
160. Tutin, C.E.G. & Fernandez, M. (1985) Foods consumed by sympatric Gorilla gorilla and Pan t. troglodytes in Gabon: some preliminary data. International Journal of Primatology, 6, 27-33.
161. Tutin, C.E.G., Fernandez, M., Rogers, M.E., Williamson, E.A. & McGrew, W.C. (1991) Foraging profiles of sympatric lowland gorillas and chimpanzees in the Lop Reserve, Gabon. Philosophical Transactions of the Royal Society of London B, 334, 179-186.
162. Uehara, S. & Nishida, T. (1987) Body weights of wild chimpanzees (Pan troglodytes schweinfurthii) of the Mahale Mountains National Park. American Journal of Physical Anthropology, 72, 315-321.
163. Wahome, J.M., Rowell, T.E. & Tsingalia, H.M. (1993) The natural history of de Brazzas monkey in Kenya. International Journal of Primatology, 14, 445-466.
164. Wallis, S.J. (1979) The sociobiology of Cercocebus albigena johnstoni ( Lyddeker): an arboreal rainforest monkey. PhD thesis, University of London.
165. Waser, P.M. (1974) Intergroup interaction in a forest monkey: the mangabey Cercocebus albigena. PhD thesis, Rockefeller University, New York.
166. Waser, P.M. (1976) Cercocebus albigena: site attachment, avoidance and intergroup spacing. American Naturalist, 110, 911-935.
167. White, L.J.T. (1992) Vegetation history and logging disturbance: effects on rainforest mammals in the Lop Reserve, Gabon (with special emphasis on elephants and apes). PhD thesis, University of Edinburgh.
168. White, L.J.T., Tutin, C.E.G. & Fernandez, M. (1993) Group composition and diet of forest elephants, Loxodonta africana cyclotis Matschie 1900 in the Lop Reserve, Gabon. African Journal of Ecology, 31, 181-199.
169. Whitesides, G.H. (1981) Community ecology and interspecific associations of the nonhuman primates of the Douala-Edea Forest Reserve. PhD thesis, John Hopkins University, Baltimore.
170. Whitesides, G.H., Oates, J.F., Green, S.M. & Kluberdanz, R.P. (1988) Estimating primates densities from transects in a West African rain forest: a comparison of techniques. Journal of Animal Ecology, 57, 345-367.
171. Wickings, E.J. & Dixson, A.F. (1992) Development from birth to sexual maturity in a semi-freeranging colony of mandrills (Mandrillus sphinx) in Gabon. Journal of Reproductive Fertility, 95, 129-138.
172. Wilkie, D.S. (1987) Impact of swidden agriculture and subsistence hunting on diversity and abundance of exploited fauna in the Ituri forest of northeastern Zaire. PhD thesis, University of Massachusetts.
173. Wilson, V.J. & Child, G.F.T. (1964) Notes on bushbuck (Tragelaphus scriptus) from a tsetse fly control area in northern Rhodesia. Puku, 2, 118-128.