The Congo River basin

doi:10.1017/CBO9780511542091.006

5 - The Congo River basin

Published online by Cambridge University Press: 10 August 2009

D. Campbell

Edited by

Lauchlan H. Fraser and

Paul A. Keddy

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D. Campbell: Affiliation:
Southeastern Louisiana University
Lauchlan H. Fraser: Affiliation:
University of Akron, Ohio
Paul A. Keddy: Affiliation:
Southeastern Louisiana University

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Summary

The Congo River has the second greatest discharge of any river in the world after the Amazon. It drains 3.7 million km2 of the African continent. Through its middle course from Boyoma Falls near Kisangani to Malebo Pool at Kinshasa/Brazzaville, the river drops only 115 m over 1740 km as it crosses the cuvette centrale congolaise, a vast, shallow depression along the equator in the heart of Africa (Hughes & Hughes 1992). Throughout the cuvette centrale, great swamps extend behind the river's levees and along the banks of the numerous tributaries that drain it (Fig. 5.1). These swamps and other wetlands are estimated to cover at least 69 000 km2 in the Congo and 120 000 km2 in the Democratic Republic of Congo (D. R. Congo, formerly Zaire; Hughes & Hughes 1992), for a total of c. 190 000 km. To put these swamps in perspective, they are larger than the states of Louisiana and Mississippi put together or over four times the size of Switzerland. This makes them the fourth- to fifth-largest area of wetlands in the world.

In contrast with their striking size, these swamps are poorly studied and understood. Older reviews of African wetland ecology hardly mention them (Thompson & Hamilton 1983, Denny 1985). Most of the primary research on the swamps themselves dates from the colonial era and is found in obscure publications in France and Belgium.

Type: Chapter
Information: The World's Largest Wetlands
Ecology and Conservation
, pp. 149 - 165

DOI: https://doi.org/10.1017/CBO9780511542091.006 [Opens in a new window]

Publisher: Cambridge University Press

Print publication year: 2005

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References

Achard, F., Eva, H. D., Stibig, H.-J.et al. (2002). Determination of deforestation rates of the world's humid tropical forests. Science, 297, 999–1002CrossRef Google Scholar PubMed

Agnagna, M. (1983). Results of the first Congolese Mokele-Mbembe expedition. Cryptozoology, 2, 103–12Google Scholar

Berg, A. (1961). Rôle écologique des eaux de la Cuvette congolaise sur la croissance de la jacinthe d'eau [Eichhornia crassipes (Mart.) Solms]. Académie Royale des Sciences d'Outre-mer, Classe des sciences naturelles et médicales, Mémoire in-8°, Nouvelle série 12, pp. 1–120

Bernard, É. (1945). Le climat écologique de la cuvette centrale congolaise. Bruxelles, Belgium: Institut National pour l'Etude Agronomique du Congo BelgeGoogle Scholar

Blake, S., Rogers, E., Fay, M. J., Ngangoué, M., and Ebeké, G. (1995). Swamp gorillas in northern Congo. African Journal of Ecology, 33, 285–90CrossRef Google Scholar

Bobb, F. S. (1999). Historical Dictionary of Democratic Republic of the Congo (Zaire). Lanham, MD: The Scarecrow PressGoogle Scholar

Bouillenne, R., Moureau, J., and Deuse, P. (1955). Esquisse écologique des faciès forestiers et marécageux des bords du lac Tumba (Domaine de l'I. R. S. A. C., Mabali, Congo belge). Académie Royale des Sciences coloniales, Classe des sciences naturelles et médicales, Mémoires in-8°, Nouvelle série 3, pp. 1–120

Bultot, F. (1971). Atlas climatique du bassin congolais, vol. 2, Les composantes du bilan d'eau. Bruxelles, Belgium: Institut National pour l'Etude Agronomique au Congo

Chapman, L. J. and Chapman, C. A. (2003). Fishes of the African rain forests: emerging and potential threats to a little-known fauna. In Conservation, Ecology, and Management of African Fresh Waters, eds. Crissman, T. L., Chapman, L. J., Chapman, C. A., and Kaufman, L. S.. Gainesville, FL: University Press of Florida, pp. 176–209Google Scholar

Chudnoff, M. (1984). Tropical Timbers of the World. Madison: US Department of Agriculture, Forest Service. http://128.104.77.230/TechSheets/tropicalwood.html (accessed February 2005)Google Scholar

Colchester, M., Jackson, D., and Kendrick, J. (1998). Forest peoples of the Congo basin: past exploitation, present threats and future prospects. In The Congo Basin, Human and Natural Resources, eds. Beselink, C. and Sips, P.. Amsterdam, the Netherlands: Netherlands Committee for IUCN, pp. 53–63Google Scholar

Colyn, M., Gauthier-Hyon, A., and Verheyen, W. (1991). A re-appraisal of palaeoecological history in Central Africa: evidence for a major fluvial refuge in the Zaire basin. Journal of Biogeography, 18, 403–7CrossRef Google Scholar

Grandi, G. F., Mayaux, P., Malingreau, J.-P. (2000a). New perspectives on global ecosystems from wide-area radar mosaics: flooded forest mapping in the tropics. International Journal of Remote Sensing, 21, 1235–49CrossRef Google Scholar

Grandi, G. F., Mayaux, P., Rauste, Y.et al. (2000b). The Global Rain Forest Mapping Project JERS-1 radar mosaic of tropical Africa: development and product characterization aspects. IEEE Transactions on Geoscience and Remote Sensing, 38, 2218–33CrossRef Google Scholar

Klerk, H. M., Crowe, T. M., Fjeldså, J., and Burgess, N. D. (2002). Patterns of species richness and narrow endemism of terrestrial bird species in the Afrotropical region. Journal of Zoology, 256, 327–42CrossRef Google Scholar

Denny, P. (ed.) (1985). The Ecology and Management of African Wetland Vegetation: a Botanical Account of African Swamps and Shallow Waterbodies. Dordrecht, the Netherlands: JunkCrossRef Google Scholar

Deuse, P. (1960). Etude écologique et phytosociologique de la végétation des Esobe de la région est du lac Tumba (Congo belge). Académie Royale des Sciences d'Outre-Mer, Classe des sciences naturelles et médicales, Mémoires in-8°, Nouvelle série 11, pp. 1–44

Diamond, A. W. and Hamilton, A. C. (1980). The distribution of forest passerine birds and Quaternary climatic change in tropical Africa. Journal of Zoology, London, 191, 379–402CrossRef Google Scholar

Dubois, T. (1959). Note sur le chimie des eaux du Lac Tumba. Académie Royale des Sciences d'Outre-Mer, Bulletin des Séances, 6, 1321–34Google Scholar

Dudley, J. P., Ginsberg, J. R., Plumptre, A. J., Hart, J. A., and Campos, L. C. (2002). Effects of war and civil strife on wildlife and wildlife habitats. Conservation Biology, 16, 319–29CrossRef Google Scholar

Dupont, L. M., Donner, B., Schneider, R., and Wefer, G. (2001). Mid-Pleistocene environmental change in tropical Africa began as early as 1.05 Ma. Geology, 29, 195–82.0.CO;2>CrossRef Google Scholar

Evrard, C. (1968). Recherches écologiques sur le peuplement forestier des sols hydromorphes de la cuvette centrale congolaise. Série scientifique 110. Bruxelles, Belgium: Institut National pour l'Etude Agronomique au CongoGoogle Scholar

Fa, J. E., Peres, C. A., and Meeuwig, J. (2002). Bushmeat exploitation in tropical forests: an intercontinental comparison. Conservation Biology, 16, 232–7CrossRef Google Scholar

Fay, J. M., Agnagna, M., Moore, J., and Oko, R. (1989). Gorillas (Gorilla gorilla gorilla) in the Likouala swamp forests of north central Congo: preliminary data on populations and ecology. International Journal of Primatology, 10, 477–86CrossRef Google Scholar

Frazier, S. (ed.) (2002). A Directory of Wetlands of International Importance. Ramsar Convention Bureau and Wetlands International. http://www.wetlands.org/RDB/Ramsar_Dir/1_Introduction/Introduction.htm#title (accessed February, 2005)

Hochschild, A. (1998). King Leopold's Ghost: a Story of Greed, Terror, and Heroism in Colonial Africa. Boston, MA: Houghton MifflinGoogle Scholar

Hughes, R. H. and Hughes, J. S. (1992). A Directory of African Wetlands. Gland Switzerland and Cambridge, UK: International Union for the Conservation of Nature and Natural Resources (IUCN)Google Scholar

Institut Royal des Sciences Naturelles de Belgique and Centre d'Echange d'Informations de la République Démocratique du Congo (1998–2002). Etat de la diversité biologique en République Démocratique du Congo: Bibliographie. http://bch-cbd.naturalsciences.be/congodr/cdr-fra/contribution/monographie/biblio.htm (accessed February, 2005)

Jahns, S. (1996). Vegetation history and climate changes in West Equatorial Africa during the late Pleistocene and Holocene, based on a marine pollen diagram from the Congo fan. Vegetation History and Archaeobotany, 5, 207–13CrossRef Google Scholar

Job, D. A. (1994). Global climate change, natural resources management and biodiversity conservation in the Congo Basin: preliminary literature review. http://carpe.umd.edu/products/PDF_files/Biblio-Job.pdf (accessed February, 2005)

Kingdon, J. (1989). Island Africa: the Evolution of Africa's Rare Animals and Plants. Princeton, NJ: Princeton University PressGoogle Scholar

Laporte, N. T., Goetz, S. J., Justice, C. O., and Heinicke, M. (1998). A new land cover map of central Africa derived from multi-resolution, multi-temporal AVHRR data. International Journal of Remote Sensing, 19, 3537–50CrossRef Google Scholar

Laraque, A., Mietton, M., Olivry, J. C., and Pandi, A. (1998a). Influences des couvertures lithologiques et végétales sur les régimes et la qualité des eaux des affluents congolais du fleuve Congo. Revue des Sciences de l'Eau, 11, 209–24CrossRef Google Scholar

Laraque, A., Poyaud, B., Rocchia, R.et al. (1998b). Origin and function of a closed depression in equatorial humid zones: the Lake Télé in North Congo. Journal of Hydrology, 207, 236–53CrossRef Google Scholar

Laraque, A., Mahé, G., Orange, D., and Marieu, B. (2001). Spatiotemporal variations in hydrological regimes within Central Africa during the XXth century. Journal of Hydrology, 245, 104–17CrossRef Google Scholar

Lawrence, S. R. and Mbungu-Makazu, M. (1988). Zaire's central basin: prospectivity outlook. Oil and Gas Journal, 86, 105–8Google Scholar

LeBreton, M. (1998). A brief overview of the herpetofauna of the Congo Basin region. In The Congo Basin, Human and Natural Resources, eds. Beselink, C. and Sips, P.. Amsterdam, the Netherlands: Netherlands Committee for IUCN, pp. 31–41Google Scholar

Lebrun, L. and Gilbert, G. (1954). Une classification écologique des forêts du Congo. INEAC Série 63. Bruxelles, Belgium: Institut National pour l'Etude Agronomique au CongoGoogle Scholar

Leroux, M. (1983). Le climat de l'Afrique tropicale. Paris: Editions ChampionsGoogle Scholar

Linder, H. P. (2001). Plant diversity and endemism in sub-Saharan tropical Africa. Journal of Biogeography, 28, 169–82CrossRef Google Scholar

Maley, J. (1996). The African rain forest – main characteristics of changes in vegetation and climate from the Upper Cretaceous to the Quaternary. Proceedings of the Royal Society of Edinburgh, 104B, 31–73Google Scholar

Marlier, G. (1958). Recherches hydrobiologiques au lac Tumba. Hydrobiologia, 10, 352–85CrossRef Google Scholar

Marlier, G. (1973). Limnology of the Congo and Amazon rivers. In Tropical Forest Systems in Africa and South America: a Comparative Review, eds. Meggers, B. J., Ayensu, E. S., and Duckworth, W. D.. Washington, DC: Smithsonian Institution, pp. 223–8Google Scholar

Matthes, H. (1964). Les poissons du Lac Tumba et de la région d'Ikela: études systématique, écologique et zoogéographique. Tervuren, Belgium: Musée Royal de l'Afrique CentraleGoogle Scholar

Mayaux, P. and Malingreau, J.-P. (2000). Le couvert forestier d'Afrique centrale: un nouvel état des lieux. Bulletin des Séances de l'Académie Royale des Sciences d'Outre-Mer, 46, 475–86Google Scholar

Mayaux, P., Janodet, E., Blair-Myers, C. M., and Legeay-Janvier, P. (1997a). Vegetation Map of Central Africa at 1:5 000 000. TREES Series D, no. 1. Ispra, Italy: Space Applications Institute, Joint Research Centre, European Commission

Mayaux, P., Richards, T., and Janodet, E. A. (1997b). A vegetation map of Central Africa derived from satellite imagery. Journal of Biogeography, 26, 353–66CrossRef Google Scholar

Mayaux, P., Grandi, G., and Malingreau, J.-P. (2000). Central Africa forest cover revisited: a multisatellite analysis. Remote Sensing of Environment, 71, 183–96CrossRef Google Scholar

Mayaux, P., Grandi, G. F., Rauste, Y., Simard, M., and Saatchi, S. (2002). Large-scale vegetation maps derived from the combined L-band GRFM and C-band CAMP wide area radar mosaics of Central Africa. International Journal of Remote Sensing, 23, 1261–82CrossRef Google Scholar

Moody, R. (1998). The Congo Basin. The Netherlands: IUCN (World Conservation Union)Google Scholar

Moukolo, N., Laraque, A., Olivry, J. C., and Bricquet, J. P. (1993). Transport en solution et en suspension par le fleuve Congo (Zaïre) et ses principaux affluents de la rive droite. Hydrological Sciences, 38, 133–45CrossRef Google Scholar

Myers, N., Mittermeier, R. A., Mittermeier, C. G., Da Fonseca, G. A. B., and Kent, J. (2000). Biodiversity hotspots for conservation priorities. Nature, 403, 853–8CrossRef Google Scholar PubMed

Ndjele, M. (1988). Principales distributions obtenues par l'analyse factorielle des éléments phytogéographiques présumés endémiques dans la flore du Zaïre. Monographs in Systematic Botany from the Missouri Botanical Garden, 25, 631–8Google Scholar

Plouvier, D. (1998). The situation of tropical moist forests and forest management in Central Africa and markets for African timber. In The Congo Basin, Human and Natural Resources, eds. Beselink, C. and Sips, P.. Amsterdam, the Netherlands: Netherlands Committee for IUCN, pp. 100–9Google Scholar

Preuss, J. (1990). L'évolution des paysages du basin intérieur du Zaire pendant les quarantes dernières millénaires. In Paysages quaternaires de l'Afrique Centrale Atlantique, eds. Lanfranchi, R. and Schwartz, D.. Paris: Editions de l'ORSTOM, pp. 260–70Google Scholar

Probst, J. L., Nkounkou, R. R., Krempp, G.et al. (1992). Dissolved major elements exported by the Congo and the Ubangui rivers during the period 1987–1989. Journal of Hydrology, 135, 237–57CrossRef Google Scholar

Quammen, D. and Nichols, M. (2000). Megatransect: across 1,200 miles of untamed Africa on foot. National Geographic, 198(4), 2–29Google Scholar

Quammen, D. and Nichols, M. (2001a). Megatransect II: the green abyss. National Geographic, 199(3), 2–37Google Scholar

Quammen, D. and Nichols, M. (2001b). Megatransect III: end of the line. National Geographic, 200(2), 74–103Google Scholar

Riley, J. and Huchzermeyer, F. W. (1999). African dwarf crocodiles in the Likouala Swamp forests of the Congo basin: habitat, density, and nesting. Copeia, 2, 313–20CrossRef Google Scholar

Rosenqvist, Å. and Birkett, C. M. (2002). Evaluation of JERS-1 SAR mosaics for hydrological applications in the Congo River basin. International Journal of Remote Sensing, 23, 1283–1302CrossRef Google Scholar

Royal Museum for Central Africa (Undated). Publications. http://www.africamuseum.be/publications (accessed February, 2005)

Sayer, J. A., Harcourt, C. S., and Collins, N. M. (1992). The Conservation Atlas of Tropical Forests: Africa. Basingstoke, UK: MacmillanCrossRef Google Scholar

Singh, A., Dieye, A., and Finco, M. (1999). Assessing environmental conditions of major river basins in Africa as surrogates for watershed health. Ecosystem Health, 5, 264–74CrossRef Google Scholar

Thompson, K. and Hamilton, A. C. (1983). Peatlands and swamps of the African continent. In Ecosystems of the World, vol. 4B: Mires: Swamp, Bog, Fen and Moor, ed. Gore, A. J. P.. Amsterdam, the Netherlands: Elsevier Science, pp. 331–73Google Scholar

Trefon, T. (1998). Urban threats to biodiversity in the Congo basin. In The Congo Basin, Human and Natural Resources, eds. Beselink, C. and Sips, P.. Amsterdam, the Netherlands: Netherlands Committee for IUCN, pp. 89–99Google Scholar

UNEP World Conservation Monitoring Centre (2001). Salonga National Park. http://www.unep-wcmc.org/protected_areas/data/wh/salonga.html (accessed February, 2005)

Krunkelsven, E. (2001). Density estimation of bonobos (Pan paniscus) in Salonga National Park, Congo. Biological Conservation, 99, 387–91CrossRef Google Scholar

Krunkelsven, E., Bila-Isia, I., and Draulans, D. (2000). A survey of bonobos and other large mammals in the Salonga National Park, Democratic Republic of Congo. Oryx, 34, 180–7CrossRef Google Scholar

Vogel, G. (2000). Conflict in Congo threatens bonobos and rare gorillas. Science, 287, 2386–7CrossRef Google Scholar PubMed

Welcomme, R. L. (1979). Fisheries Ecology of Floodplain Rivers. London: LongmanGoogle Scholar

Welcomme, R. L. (2003). River fisheries in Africa: their past, present, and future. In Conservation, Ecology, and Management of African Fresh Waters, eds. Crissman, T. L., Chapman, L. J., Chapman, C. A., and Kaufman, L. S.. Gainesville, FL: University Press of Florida, pp. 145–75Google Scholar

White, F. (1983). The Vegetation of Africa: a Descriptive Memoir to Accompany the UNESCO/AETFAT/UNSO Vegetation Map of Africa. Paris: UNESCOGoogle Scholar

Wildlife Conservation Society (2001). Lac Télé Reserve conservation and management. http://www.wcs-congo.org/lacres.htm (accessed October, 2003)

Wilkie, D., Shaw, E., Rotberg, F., Morelli, G., and Auzel, P. (2000). Roads, development, and conservation in the Congo basin. Conservation Biology, 14, 1614–22CrossRef Google Scholar

Wilkie, D. S., Carpenter, J. F., and Zhang, Q. (2001a). The under-financing of protected areas in the Congo Basin: so many parks and so little willingness-to-pay. Biodiversity and Conservation, 10, 691–709CrossRef Google Scholar

Wilkie, D. S., Hakizumwami, E., Gami, N., and Difara, B. (2001b). Beyond boundaries: regional overview of transboundary natural resource management in Central Africa. In Beyond Boundaries: Transboundary Natural Resource Management in Central Africa. Washington, DC: Biodiversity Support Program. http://www.worldwildlife.org/bsp/publications/africa/125/125/titlepage.HTML (accessed February, 2005)Google Scholar

Wilkie, D. S., Sidle, J. G., Boundzanga, G. C., Auzel, P., and Blake, S. (2001c). Defaunation, not deforestation: commercial logging and market hunting in northern Congo. In The Cutting Edge: Conserving Wildlife in Logged Tropical Forest, eds. Fimbel, R. A., Grajal, A. A., and Robinson, J. G.. New York: Columbia University Press, pp. 375–99CrossRef Google Scholar