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Patterns of fruit-fall phenology in the Lopé Reserve, Gabon

Published online by Cambridge University Press:  10 July 2009

Lee J. T. White
Lee J. T. White*
Affiliation:
Institute for Cell, Animal and Population Biology, Scottish Primate Research Group, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK& NYZS-The Wildlife Conservation Society
*
1 Address for correspondence: Dr L. White, S.E.G.C., B.P. 7847, Libreville, Gabon.
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Abstract

Patterns of fruit production were monitored over a 1-year period, from June 1990–May 1991, by counting the numbers of freshly fallen ripe and unripe fruits on five 5-km line transects located within 35 km of one another, in lowland tropical rainforest in the Lopé Reserve, central Gabon. A total of 195 species of fruit were found, representing at least 45 taxonomic families. The majority of fruits came from trees. Fruits were assigned to one of six categories which reflected their dispersal syndrome: succulent, arillate, dehiscent, fleshy pods, wind-dispersed, others. About three-quarters of all species had fruits characteristic of those dispersed by animals. There was a marked seasonal pattern to fruit production, with both the diversity and number of ripe fruits available peaking in January, and lowest immediately before and during the major dry season. The only climatic variable that showed a significant statistical correlation with fruit production was insolation. Candidates for the role of keystone fruit species were identified from species which fruited during the major dry season, and patterns of fruit production compared with other areas.

Keywords

fruit charactersGabonkeystone speciesphenologyrainforestseasonalityseed dispersal
Type
Research Article
Information
Journal of Tropical Ecology , Volume 10 , Issue 3 , August 1994 , pp. 289 - 312
Copyright
Copyright © Cambridge University Press 1994

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References

LITERATURE CITED

Alexandre, D. Y. 1980. Charactere saisonnier de la fructification dans une forêt hygrophile de Cote d'Ivoire. Revue d'Ecologit (Terre et Vie) 34:335–350.Google Scholar
Caballé, G. 1983. Vegetation. Pp. 35–38 in Barret, J. (ed.). Geographie et cartographie du Gabon, EDICEF, Paris. 135 pp.Google Scholar
Chapman, C. A., Wrangham, R. & Chapman, L. J. In press. Indices of habitat-wide fruit abundance in tropical forests. Biotropica.Google Scholar
Corlett, R. T. 1990. Flora and reproductive phenology of the rain forest at Bukit Timah, Singapore. Journal of Tropical Ecology 6:55–63.CrossRefGoogle Scholar
Dubost, G. 1984. Comparisons of the diets of frugivorous forest ruminants of Gabon. Journal of Mammalogy 65:298–316.CrossRefGoogle Scholar
Edicef, , 1983. Geographie et cartographie du Gabon. Barret, J. (ed.). EDICEF, Paris. 135 pp.Google Scholar
Emmons, L. H. 1980. Ecology and resource partitioning amongst nine species of African rain forest squirrels. Ecological Monographs 50:31–54.CrossRefGoogle Scholar
Emmons, L. H., Gautier-Hion, A. & Dubost, G. 1983. Community structure of the frugivorous-folivorous forest mammals of Gabon. Journal of Zoology 199:209–222.Google Scholar
Feer, F. 1989. Comparaison des regimes alimentaires de Cephalophus callipygus et C. dorsalis, Bovidés sympatriques de la forêt sempervirente africaine. Mammalia 53(4): 563–604.Google Scholar
Fleming, T. H., Breitwisch, R. & Whitesides, G. H. 1987. Patterns or tropical vertebrate frugivore diversity. Annual Review of Ecology and Systematics 18:91–109.CrossRefGoogle Scholar
Foster, R. B. 1982a. The seasonal rhythm of fruit fall on Barro Colorado Island. Pp. 151–172 in Leigh, E. G., Rand, A. S. & Windsor, D. M. (eds). The ecology of a tropical forest: seasonal rhythms and long term changes. Smithsonian Institution Press, Washington DC. 468 pp.Google Scholar
Foster, R. B. 1982b. Famine on Barro Colorado Island. Pp. 201–212 in Leigh, E. G., Rand, A. S. & Windsor, D. M. (eds.). The ecology of a tropical forest: seasonal rhythms and long term changes. Smithsonian Institution Press, Washington DC. 468 pp.Google Scholar
Frankie, G. W., Baker, H. G. & Opler, P. A. 1974. Comparative phenological studies of trees in tropical wet and dry forests in the lowlands of Costa Rica. Journal of Ecology 62:881–919.Google Scholar
Garwood, N. C. 1983. Seed germination in a seasonal tropical forest in Panama: A community study. Ecological Monographs 53:159–181.CrossRefGoogle Scholar
Gautier-Hion, A. 1978. Food niche and coexistence in sympatric primates in Gabon. Pp. 269–286 in Chivers, D. J. & Herbert, J. (eds). Recent advances in primatology. Academic Press, New York, London.Google Scholar
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.CrossRefGoogle ScholarPubMed
Gautier-Hion, A., Duplantier, J-M., Quris, F., Feer, F., Sourd, C., Decoux, J-P., Dubost, G., Emmons, L., Erard, C., Hecketsweiler, P., Moungazi, A., Roussilhon, C. & Thiollay, J-M. 1985a. Fruit characteristics as a basis for fruit choice and seed dispersal in a tropical forest vertebrate community. Oecologia 65:324–337.CrossRefGoogle Scholar
Gautier-Hion, A., Duplantier, J-M., Emmons, L., Feer, F., Heckestweiler, P., Moungazi, A., Quris, R. & Sourd, C. 1985b. Coadaptation entre rythmes de fructification et frugivorie en forêt tropicale humide du Gabon: mythe ou réalité? Revue d'Ecologie (Terre et Vie) 40:405–434.Google Scholar
Gautier-Hion, A. & Michaloud, G. 1989. Are figs always keystone resources for tropical frugivorous vertebrates? A test in Gabon. Ecology 70(6): 1826–1833.CrossRefGoogle Scholar
Gilbert, L. E. 1980. Food web organisation and conservation of neotropical diversity. Pp. 11–34 in Soulé, M. E. & Wilcox, B. A. (eds). Conservation biology. Sinauer Associates, Sunderland, Massachusetts.Google Scholar
Hall, J. B. & Swaine, M. D. 1981. Distribution and ecology of vascular plants in a tropical rain forest: forest vegetation in Ghana. W. Junk, The Hague. 383 pp.CrossRefGoogle Scholar
Harrison, M. J. S. & Hladik, A. 1986. Une primate granivore: le colobe noir dans la fôret du Gabon; potentialité d'évolution du compartement allimentaire. Revue Ecologie (Terre et Vie) 41:281–298.Google Scholar
Hladik, A. 1978. Phenology and leaf production in rain forest of Gabon: distribution and composition of food for arboreal folivores. Pp. 51–71 in Montgomery, G. G. (ed.). The ecology of arboreal folivores. Smithsonian Institution Press, Washington DC. 468 pp.Google Scholar
Hladik, C. M. 1973. Allimentation et activité d'un groupe de chimpanzés reintroduits en foret Gabonaise. Revue Ecologie (Terre et Vie) 27:343–413.Google Scholar
Janzen, D. H. 1969. Seed eaters versus seed size, number, toxicity and dispersal. Evolution 23:201–228.Google ScholarPubMed
Johns, A. D. & Skorupa, J. P. 1987. Responses of rain forest primates to habitat disturbance: a review. International Journal of Primatology 8:157–191.Google Scholar
Leighton, M. & Leighton, D. R. 1983. Vertebrate responses to fruiting seasonality within a Bornean rain forest. Pp. 181–196 in Sutton, S. L., Whitmore, T. C. & Chadwick, A. C. (eds). Tropical rain forest: ecology and management. Blackwell Scientific Publications, Oxford. 498 pp.Google Scholar
Letouzey, R. 1968. Étude phytogéographique du Cameroun. Encyclopédic Biologique no. 69. Editions Paul Lechevalier, Paris. 511 pp.Google Scholar
Lieberman, D. 1982. Seasonality and phenology in a dry tropical forest in Ghana. Journal of Ecology 70:791–806.CrossRefGoogle Scholar
Longman, K. A. & Jenik, J. 1974. Tropical forest and its environment. Longman, London. 196 pp.Google Scholar
Medway, Lord. 1972. Phenology of a tropical rain forest in Malaya. Biological Journal of the Linnean Society 4:117–146.Google Scholar
Norton-Griffiths, M. 1978. Counting animals. African Wildlife Foundation, Nairobi.Google Scholar
Pannell, C. M. & Koziol, M. J. 1987. Ecological and phytochemical diversity of arillate seeds in Aglaia (Meliaceae): a study of vertebrate dispersal in tropical trees. Philosophical Transactions of the Royal Society of London B 316:303–333.Google Scholar
Raemaekers, J. J., Aldrich-Blake, F. P. G. & Payne, J. B. 1980. The forest. Pp. 29–62 in Chivers, D. J. (ed.). Malayan forest primates. Plenum Press, London. 364 pp.Google Scholar
Reitsma, J. M. 1988. Végétation Forestière du Gabon. Forest Vegetation of Gabon. Tropenbos Technical Series 1, Ede, The Netherlands. 142 pp.Google Scholar
Rogers, M. E., Maisels, F., Williamson, E. A., Fernandez, M. & Tutin, C. E. G. 1990. Gorilla diet in the Lopé Reserve, Gabon: a nutritional analysis. Oecologia 84:326–339.CrossRefGoogle Scholar
Sabatier, D. 1985. Saisonalité et determinisme du pic de fructification en forêt Guyanaise. Revue d'Ecologie (Tern et Vie) 40:289–320.Google Scholar
Siegel, S. & Castellan, N. J. 1988. Nonparametric statistics for the behavioural sciences. McGraw-Hill, New York. 399 pp.Google Scholar
Smythe, N. 1970. Relationships between fruiting seasons and seed dispersal methods in a Neotropical forest. American Naturalist 104:25–35.Google Scholar
Snow, D. W. 1966. A possible selection factor in the evolution of fruiting species in a tropical forest. Oikos 15:274–281.CrossRefGoogle Scholar
Sourd, C. & Gautier-Hion, A. 1986. Fruit selection by a forest guenon. Journal of Animal Ecology 55:235–244.CrossRefGoogle Scholar
Swaine, M. D. 1992. Characteristics of dry forest in West Africa and the influence of fire. Journal of Vegetation Science 3:365–374.CrossRefGoogle Scholar
Swaine, M. D. & Hall, J. B. 1986. Forest structure and dynamics. Pp. 47–93 in Lawson, G. W. (ed.). Plant ecology in West Africa. John Wiley & Sons Ltd., New York.Google Scholar
Terborgh, J. 1983. Five New World primates: a study in comparative ecology. Princeton University Press, Princeton, New Jersey, USA. 260 pp.Google Scholar
Terborgh, J. 1986. Keystone plant resources in the tropical forest. Pp. 330–344 in Soulé, M. E. (ed.). Conservation biology: the science of scarcity and diversity. Sinauer Associates, Sunderland, Massachusetts. 584 pp.Google Scholar
Tutin, C. E. G. & Fernandez, M. 1985. Foods consumed by sympatric populations of Gorilla gorilla gorilla and Pan troglodytes troglodytes in Gabon: some preliminary data. International Journal of Primatology 6:27–43.Google Scholar
Tutin, C. E. G. & Fernandez, M. 1993. Relationships between minimum temperature and fruit production in some tropical forest trees in Gabon. Journal of Tropical Ecology 9:241–248.Google Scholar
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 Lopé Reserve, Gabon. Philosophical Transactions of the Ratal Society, London B 334:179–186.Google ScholarPubMed
Wheelwright, N. T. 1985. Competition for dispersers and the timing of flowering and fruiting in a guild of tropical trees. Oikos 44:465–477.Google Scholar
White, F. 1983. The vegetation of Africa. UNESCO, Paris. 683 pp.Google Scholar
White, L. J. T. 1992. Vegetation history and logging damage; effects on rain forest mammals in the Lope Reserve, Gabon. PhD Thesis, University of Edinburgh.Google Scholar
White, L. J. T. 1994. Sacoglottis gabonensis fruiting and the seasonal movements of elephants in the Lopé Reserve, Gabon. Journal of Tropical Ecology 10:121–125.CrossRefGoogle Scholar
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 Lope Reserve, Gabon. African Journal of Ecology 31:181–189.Google Scholar
Williamson, E. A. 1988. Behavioural ecology of western lowland gorillas in Gabon. PhD Thesis. University of Stirling.Google Scholar
Willis, E. O. 1980. Ecological roles of migratory and resident birds on Barro Colorado Island, Panama. Pp. 202–225 in Keast, A. & Morton, E. S. (eds). Migrant birds of the Neotropics. Smithsonian Institution Press, Washington.Google Scholar