Bushmeat hunting in the Congo Basin: an assessment of impacts and options for mitigation

Biodiversity and Conservation - Tập 8 - Trang 927-955 - 1999
David S. Wilkie1, Julia F. Carpenter1
1Waltham, USA

Tóm tắt

Hunting of wild animals is an important component of household economies in the Congo Basin. Results from the growing corpus of quantitative studies show that: a) bushmeat remains the primary source of animal protein for the majority of Congo Basin families; b) bushmeat hunting can constitute a significant source of revenue for forest families; c) bushmeat consumption by low density populations living in the forest may be sustainable at present; d) demand for bushmeat by growing numbers of urban consumers has created a substantial market for bushmeat that is resulting in a halo of defaunation around population centres, and may be driving unsustainable levels of hunting, even in relatively isolated regions; and e) large bodied animals with low reproductive rates are most susceptible to over-exploitation compared with more r-selected species that apparently can tolerate relatively intensive hunting (Mangel et al. 1996). As urban populations continue to grow and economies revitalise, unless action is taken to alter the demand for, and the supply of bushmeat, the forests of the Congo Basin will be progressively stripped of certain wildlife species, risking their extirpation or extinction, and the loss of values they confer to local economies. Consequently, it is essential that a) logging companies are encouraged or coerced not to facilitate bushmeat hunting and transportation in their concessions, b) we develop a better understanding of the elasticity of bushmeat demand, c) that pilot bushmeat substitution projects are supported and their impact on demand evaluated, and d) social marketing activities are put in place to attempt to direct consumer preferences for animal protein away from bushmeat species that are particularly susceptible to over-exploitation.

Tài liệu tham khảo

Alvard MS (1993) Testing the 'Ecologically noble savage' hypothesis: interspecific prey choice by Piro hunters of Amazonian Peru. Human Ecology 21: 355–387 Alvard MS (1994) Conservation by native peoples: prey choice in a depleted habitat. Human Nature 5: 127–154 Ambrose-Oji B (1997) Valuing forest products from Mount Cameroon. In: Doolan S (ed) African Rainforests and the Conservation of Biodiversity: Proceedings of the Limbe Conference, pp 140–150. Earthwatch Europe, Oxford Anadu PA, Elamah PO and Oates JF (1988) The bushmeat trade in southwestern Nigeria: a case study. Human Ecology 16: 199–208 Anstey S (1991) Wildlife utilization in Liberia. WWF International, Gland, Switzerland Asibey EOA (1974a) The grasscutter, Thyronomys swinderianus, Temmick, in Ghana. Symposia of the Zoological Society of London 34: 161–170 Asibey EOA (1974b)Wildlife as a source of protein in Africa south of the Sahara. Biological Conservation 6: 32–39 Asibey EOA (1977) Expected effects of land-use patterns on future supplies of bushmeat in Africa south of the Sahara. Environmental Conservation 4: 43–49 Aunger R (1992) An ethnography of variation: food avoidance among horticulturalists and foragers in the Ituri forest, Zaire. PhD dissertation. University of California, Los Angeles Auzel P (1996a) Agriculture/extractivisme et exploitation forestiè re. Etude de la dynamique des modes d'exploitation du milieu dans le nord de lUFA de Pokola, nord Congo. Wildlife Conservation Society/GEF Congo, Bomassa, Republic of Congo Auzel P (1996b) Evaluation de l'impact de la chasse sur la faune des forê ts dAfrique Centrale, nord Congo. Mise au point de méthodes basées sur l'analyse des pratiques et les résultats des chasseurs locaux. Wildlife Conservation Society/GEF Congo, Bomassa, Republic of Congo Auzel P and Wilkie DS (1998) Wildlife use in northern Congo: hunting in a commercial logging concession. In: Robinson JG and Bennett EL (eds) Evaluating the Sustainability of Hunting in Tropical Forests. Yale University Press, New Haven Bahuchet S and de Maret P (1995) State of Indigenous Populations Living in Rainforest Areas. European Commission DG XI Environment, Brussels Bailey RC and Peacock NR (1988) Efe pygmies of northeast Zaire: subsistence strategies in the Ituri forest. In: de Garine I and Harrison GA (eds) Uncertainty in the Food Supply, pp 88–117. Cambridge University Press, Cambridge Becker DS and Ostrom E (1995) Human ecology and resource sustainability: the importance of institutional diversity. Annual Review of Ecology and Systematics 26: 113–133 Bennett Hennessey A (1995) A study of the meat trade in Ouesso, Republic of Congo. Wildlife Conservation Society, Bronx, NY Bissonette JA and Krausman PR (1995) Integrating People and Wildlife for a Sustainable Future. The Wildlife Society, Bethesda, MD Blake S (1994) A reconnaissance survey of the Kabo logging concession south of the Nouabale-Ndoki national park northern Congo. Wildlife Conservation Society, Bronx, NY Blake S (1995) A reconnaissance survey in the Likouala swamps of northern Congo and its implications for conservation. Master of Science, University of Edinburgh, Scotland Bodmer RE (1994) Managing wildlife with local communities in the Peruvian AmazonL the case of the Reserva Comunal Tamshiyacu-Tahuayo. In: Western D, Wright RM and Strum SC (eds) Natural Connections: Perspectives in Community-Based Conservation, pp 113–134. Island Press, Washington, DC Bojo J (1996) The Economics of Wildlife: Case Studies from Ghana, Kenya, Namibia, and Zimbabwe, World Bank, Washington, DC Bowen-Jones E (1997) A Review of the Current Depth of Knowledge on the Commercial Bushmeat Trade (With Emphasis on Central/West Africa and the Great Apes). Ape Alliance/Flora and Fauna International, Cambridge Branckaert RD (1995) Minilivestock: sustainable animal resource for food security. Biodiversity and Conservation 4: 336–338 Byrne PV, Staubo C and Grootenhuis JG (1996) The economics of living with wildlife in Kenya. In: Bojo J (ed) The Economics of Wildlife: Case Studies from Ghana, Kenya, Namibia, and Zimbabwe, pp 39–78. World Bank, Washington, DC Caldecott J (1987) Hunting and Wildlife Management in Sarawak. World Wildlife Fund, Washington, DC Chardonnet P (1995) Faune sauvage africaine: la ressource oubliée., International Game Foundation, CIRAD-EMVT, Luxembourg Chardonnet P, Fritz H, Zorzi N and Feron E (1995) Current importance of traditional hunting and major contrasts in wild meat consumption in sub-saharan Africa. In: Bissonette JA and Krausman PR (eds) Integrating People and Wildlife for a Sustainable Future, pp 304–307. The Wildlife Society, Bethesda, MD Colyn MM, Dudu A and Mbaelele MM (1987) Data on small and medium scale game utilization in the rain forest of Zaire. In: Wildlife management in sub-Saharan Africa: sustainable economic benefits and contribution towards rural development, pp 109–145. World Wide Fund for Nature, Harare Crowe TM, Smith BS, Little RM and High SH (1997) Sustainable utilization of game at Rooipoort estate, northern Cape province, South Africa. In: Freese CH (ed) Harvesting Wild Species: Implications for Biodiversity Conservation, pp 359–392. Johns Hopkins University Press, Baltimore Cumming DHM(1991) Developments in game ranching and wildlife utilzation in east and southern Africa. In: Renecker LA and Hudson RJ (eds)Wildlife Production: Conservation and Sustainable Development, pp 96–108. University of Alaska, Fairbanks de Garine I (1993) Food resources and preferences in the Cameroonian forest. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 561–574. UNESCO, Paris Deichmann U (1997) Africa Towns Database. The World Bank, Washington, DC Delvingt W (1997) La chasse villageoise: synthè se régionale des études réalisées duratn la premiè re phase du Programme ECOFAC au Cameroun, au Congo, et en République Centrafricaine, p-73. Faculté Universitaire des Sciences Agronimiques des Gembloux: ECOFAC AGRECO-CTFT Dethier M (1995) Etude chasse, p-120. ECOFAC, Yaounde Dubost G (1980) L'ecologie et la vie sociale du Cephalophe bleu (Cephalophus monticola,Thunberg), petit ruminant forestier africain. Zeitschrift for Tierpsychologie 54: 205–266 East E (1995) Antelopes - Global Survey and Regional Action Plan: Part 3 - West and Central Africa. IUCN, Gland, Switzerland Estes RD (1991) The Behavior Guide to African Mammals: Including Hoofed Mammals, Carnivores, Primates, University of California Press, Berkeley Eves HE (1995) Socioeconomics of Natural Resource Utilization in the Kabo Logging Concession Northern Congo. Wildlife Conservation Society, New York Fa JE, Juste J, Perez del Val J and Castroviejo J (1995) Impact of market hunting on mammal species in Equatorial Guinea. Conservation Biology 9: 1107–1115 Feer F (1993) The potential for sustainable hunting and rearing of game in tropical forests. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 691–708. UNESCO, Paris Fitzgibbon CD, Mogaka H and Fanshawe JH (1995) Subsistence hunting in Arabuko-Sokoke forest, Kenya and its effects on mammal populations. Conservation Biology 9: 1116–1126 Freese CH (1997) Harvesting Wild Species: Implications for Biodiversity Conservation, Johns Hopkins University Press, Baltimore Gally M and Jeanmart P (1996) Etude de la chasse villageoise en forê t dense humide d'Afrique centrale. Faculté Universitaire des Sciences Agronomiques de Gembloux. Travail de fin d'études Geist V (1988) How markets for wildlife meat and parts, and the sale of hunting privileges, jeopardize wildlife conservation. Conservation Biology 2: 15–26 Haltenorth T and Diller H (1980) A Field Guide to the Mammals of Africa Including Madagascar. Collins, London Hames RB and Vickers WT (1982) Optimal foraging theory as a model to explain variability in Amazonian hunting. American Ethnologist 9: 358–378 Hannah L (1992) African People, African Parks: An Evaluation of Development Initiatives as a Means of Improving Protected Area Conservation in Africa. Conservation International, Washington, DC Hardouin J (1995) Minilivestock: from gathering to controlled production. Biodiversity and Conservation 4: 220–232 Hart JA (1978) From subsistence to market: a case study of the Mbuti net hunters. Human Ecology 6: 32–53 Hart JA (1985) Comparative dietary ecology of a community of frugivorous forest ungulates in Zaire, PhD dissertation, Michigan State University, East Lansing, p 170 Hart JA (1998) Impact of sustainability of indigenous hunting in the Ituri forest, Congo-Zaire: a comparison of unhunted and hunted duiker populations. In: Robinson JG and Bennett EL (eds) Hunting for Sustainability in Tropical Forests. Columbia University Press, New York Heymans JC and Maurice JS (1973) Introduction a l' exploitation de la faune comme ressource alimentaire en Republique du Zaire. Forum Universitaire: 2: 6–12 Hladik CM, Bahuchet S and de Garine I (1990) Food and Nutrition in the African Rain Forest. UNESCOMAB, Paris, France Hladik CM and Hladik A (1990) Food resources of the rain forest. In: Hladik CM, Bahuchet S and de Garine I (eds) Food and Nutrition in the African Rain Forest, pp 14–18. UNESCO-MAB, Paris, France Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (1993) Tropical forests, people and food. Biocultural Interactions and Applications to Development. UNESCO, Paris Hochschild A (1998) King Leopold's Ghost: A Story of Greed, Terror, and Heroism in Colonial Africa. Houghton Mifflin Company, New York HPI (1996) Boyo Rural Integrated Farmer's Alliance, Cameroon: Project Summary, pp 1–4. Heifer Project International, Little Rock, AR Ichikawa, M. (1983) An examination of the hunting dependent life of the Mbuti pygmies, eastern Zaire. African Studies Monographs. 4: 55–76 Infield M (1988) Hunting, Trapping and Fishing in Villages within and on the Periphery of the Korup National Park. WWF, Gland Joanen T, McNease L, Elsey R and Staton MA (1994) The Commercial Consumptive Use of the American Alligator (Alligator mississippiensis) in Louisiana: its Effect on Conservation - a Case Study. Rockefeller Wildlife Refuge, Grand Chenier, LA Jori F, Mensah GH and Adjamohoun E (1995) Grasscutter production: an example of rational exploitation of wildlife. Biodiversity and Conservation 4: 257–265 Jori F and Noel JM (1996) Guide pratigue d'élevage d'aulacodes au Gabon. Vétérinaires Sans Frontiè res, Berthelot Juste J, Fa JE, Perez del Val J and Castroviejo J (1995) Market dynamics of bushmeat species in Equatorial Guinea. Journal of Applied Ecology 32: 454–467 King S (1994) Utilisation of wildlife in Bakossiland, West Cameroon with particular reference to primates. TRAFFIC Bulletin 14: 63–73 Kingdon J (1997) The Kingdon Field Guide to African Mammals, Academic Press, San Diego Kiss A (ed) (1990) Living with wildlife: wildlife resource management with local participation in Africa. Technical Paper No 130, World Bank, Washington, DC Klemens MW and Thorbjarnarson JB (1995) Reptiles as a food resource. Biodiversity and Conservation 4: 281–298 Koppert GJA, Dounias E, Froment A and Pasquet P (1996) Consommation alimentaire dans trois populations forestiè res de la région cô tiè re du Cameroun: Yassa, Mvae et Bakola. In: Hladik CM, Hladik A and Pagezy H (eds) L'alimentation en forê t tropicale. Interactions bioculturelles et perspectives de développement, pp 477–496. Orstom, Paris Koppert GJA and Hladik CM (1990) Measuring food consumption. In: Hladik CM, Bahuchet S and de Garine I (eds) Food and Nutrition in the African Rain Forest, pp 59–61. UNESCO-MAB, Paris, France Koster SH and Hart JA (1988) Methods of estimating ungulate populations in tropical forests. African Journal of Ecology 26(2): 117–127 Kreuter UP and Workman JP (1994) Costs of overstocking on cattle and wildlife ranches in Zimbabwe. Ecological Economics 11: 237–248 Lahm SA (1993a) Ecology and economics of human/wildlife interaction in northeastern Gabon. PhD dissertation, New York University, New York Lahm SA (1993b) Utilization of forest resources and local variation of wildlife populations in northeastern Gabon. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 213–226. UNESCO, Paris Lahm SA (1994) Hunting and Wildlife in Northeastern Gabon: Why Conservation Should Extend Beyond Protected Areas. Institut de Recherche en Ecologie Tropicale, Makokou, Gabon Lamarque FA (1995) The French co-operation's strategy in the field of African wildlife. In: Bissonette JA and Krausman PR (eds) Integrating People and Wildlife for a Sustainable Future, pp 267–270. The Wildlife Society, Bethesda, MD Laurent E (1992) Wildlife Utilization Survey of Villages Surrounding the Rumpi Hills Forest Reserve. GTZ, Mundemba, Cameroon Leader-Williams N, Kayera JA and Overton GL (1996) Tourism Hunting in Tanzania, p-138. IUCN, Gland Ludwig D, Hilborn R and Walters CJ (1993) Uncertainty, resource exploitation and conservation: lessons from history. Science 260: 17–36 ma Mbalele M (1978) Part of African culture. Unasylva 29: 16–17 Malonga R (1996) Dynamique socio-economique du circuit commerical de viande de chasse a Brazzaville. Wildlife Conservation Society, Bronx Mangel M, Talbot LM, Meffe GK, Agardy MT, Alverson DL, Barlow J, Botkin DB, Budowski G, Clark T, Cooke J, Crozier RH, Dayton PK, Elder DL, Fowler CW, Funtowicz S, Giske J, Hofman RJ, Holt SJ, Kellert SR, Kimball LA, Norse EA, Northridge SP, Perrin WF, Perrings C, Peterman RM, Rabb GB, Regier HA, Reynolds JEI, Sherman K, Sissenwine MP, Smith TD, Starfield A, Taylor RJ, Tillman MF, Toft C, Twiss JR, Jr, Wilen J and Young TP (1996) Principles for the conservation of wild living resources. Ecological Application, 6: 338–362 Mares MA and Ojeda RA (1984) Faunal commercialization and conservation in South America. Bioscience 34: 580–584 Martin GHG (1983) Bushmeat in Nigeria as a natural resource with environmental implications. Environmental Conservation 10: 125–134 McCullough DR (1996) Spatially structured populations and harvest theory. Journal of Wildlife Management 60: 1–9 McRae M (1997) Road kill in Cameroon. Natural History 2/97: 36-47–74-75 Ngnegueu PR and Fotso RC (1996) Chasse villageoise et conséquences pour la conservation de la biodiversité dans la réserve de biosphè re du Dja. ECOFAC, Yaounde Njiforti HL (1996) Preferences and present demand for bushmeat in northern Cameroon: some implications for wildlife conservation. Environmental Conservation 23: 149–155 Noss AJ (1995) Duikers cables and nets: a cultural ecology of hunting in a central African forest. PhD dissertation, University of Florida, Gainesville Noss AJ (1998) Cable snares and bushmeat markets in a Central African forest. Environmental Conservation 25: 228–233 O'Connell MA and Sutton M (1990) The Effect of Trade on International Commerce in Africa Elephant Ivory. World Wildlife Fund, Washington, DC Pagezy H (1993) The importance of natural resources in the diet of the young child in a flooded tropical forest in Zaire. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 365–380. UNESCO, Paris Payne JC (1992) A field study of techniques for estimating densities of duikers in Korup National Park, Cameroon. MS thesis, University of Florida, Gainesville Pearce J (1996) A bridge to far. Animals International 53: 18–20 Pearce J and Ammann K (1995) Slaughter of the Apes: How the Tropical Timber Industry is Devouring Africa's Great Apes. World Society for the Protection of Animals, London Pierret PV (1975) La place de la faune dans le relevement du niveau de vie rurale au Zaire, p-11. Institut Zairois pour la Conservation de la Nature, Kinshasa Redford KH (1993) Hunting in neotropical forests: a subsidy from nature. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 227–246. UNESCO, Paris Robinson JG and Redford KH (1991) Sustainable harvest of neotropical forest mammals. In: Robinson JG and Redford KH (eds) Neotropical Wildlife Use and Conservation, pp 415–429. University of Chicago Press, Chicago Robinson JG and Redford KH (1994) Measuring the sustainability of hunting in tropical forests. Oryx 28: 249–256 Saffirio G and Scaglion R (1982) Hunting efficiency in acculturated and unacculturated Yanomama villages. Journal of anthropological Research 38: 315–327 Slade NA, Gomulkiewicz R and Alexander HM (1998) Alternatives to Robinson and Redford's method for assessing overharvest from incomplete demographic data. Conservation Biology 12: 148–155 Stearman AM (1990) The effects of settler incursion on fish and game resources of the Yuqui, a native Amazonian society of eastern Bolivia. Human Organization 49: 373–385 Steel EA (1994) Study of the Value and Volume of Bushmeat Commerce in Gabon, Libreville: World Wildlife Fund Stelfox JB, Sisler DG, Hudson RJ and Hopcraft D (1983) A comparison of wildlife and cattle ranching on the Athi Plains, Kenya Mimeo Stephensen PJ and Newby JE (1997) Conservation of the Okapi Wildlife Reserve, Zaire. Oryx 31: 49–58 Takeda J and Sato H (1993) Multiple subsistence strategies and protein resources of horticulturalists in the Zaire basin: The Ngandu and Boyela. In: Hladik CM, Hladik A, Linares OF, Pagezy H, Semple A and Hadley M (eds) Tropical Forests, People and Food: Biocultural Interactions and Applications to Development, pp 497–504. UNESCO, Paris Tewe GO and Ajaji SS (1982) Performance and nutritional utilization by the African giant rat (Cricetomys gambianus, W.) on household waste of local foodstuffs. African Journal of Ecology 20: 37–41 Verschuren J (1989) Habitats mammals and conservation in the Congo. Bull. Inst. R. Sci. Nat. Belg. Biol. 59: 169–180 Vickers WT (1991) Hunting yields and game composition over ten years in an Amazonian village. In: Robinson JG and Redford KH (eds) Neotropical Wildlife Use and Conservation, pp 53–81. University of Chicago Press, Chicago WCS (1996) The Lobéké Forest Southeast Cameroon: Summary of Activities - 1988- 1995. Wildlife Conservation Society, Bronx Wells MP, Brandon K and Hannah L (1992) People and parks: linking protected area management with local communities, The World Bank, Washington, DC White LJT (1994) Biomass of rain forest mammals in the Lope reserve, Gabon. Journal of Animal Ecology 63: 499–512 Wilkie DS (1989) Impact of roadside agriculture on subsistence hunting in the Ituri forest of northeastern Zaire. American Journal of Physical Anthropology 78: 485–494 Wilkie DS and Curran B (1991) Why do Mbuti hunters use nets? Ungulate hunting efficiency of bows and nets in the Ituri rain forest. American anthropologist 93: 680–689 Wilkie DS, Curran B, Tshombe R and Morelli GA (1998a) Managing bushmeat hunting in the Okapi Wildlife Reserve, Democratic Republic of Congo. Oryx 32: 131–144 Wilkie DS, Curran B, Tshombe R and Morelli GA (1998b) Modeling the Sustainability of Subsistence Farming and Hunting in the Ituri Forest of Zaire. Conservation Biology 12: 137–147 Wilkie DS and Finn JT (1990) Slash-burn cultivation and mammal abundance in the Ituri forest, Zaire. Biotropica 22: 90–99 Wilkie DS, Morelli GA, Shaw E, Rotberg F and Auzel P (1999a) Roads, development and conservation in the Congo Basin. Conservation Biology (in press) Wilkie DS, Sidle JG, Boundzanga GC, Blake S and Auzel P (1999b) Defaunation or deforestation: commercial logging and market hunting in northern Congo. In: Fimbel R, Grajal A and Robinson JG (eds) The Impacts of Commercial Logging on Wildlife in Tropical Forests. Columbia University Press, New York (in press) Wilson VJ and Wilson BLP (1989) A Bushmeat Market and Traditional Hunting Survey in South-West Congo. Chipangali Wildlife Trust, Bulawayo, Zimbabwe Wilson VJ and Wilson BLP (1991) La chasse traditionelle et commerciale dans le sud-oest du Congo. Tauraco Research Report 4: 279–288