Skip to main content
×
×
Home

Can the restrictive harvest period policy conserve mopane worms in southern Africa? A bioeconomic modelling approach

  • WISDOM AKPALU (a1), EDWIN MUCHAPONDWA (a2) and PRECIOUS ZIKHALI (a3)
Abstract

The mopane worm, which is the caterpillar form of the Saturnid moth Imbrasia belina Westwood, is – like other edible insects and caterpillars – a vital source of protein in southern African countries. The worms live and graze on mopane trees, which have alternative uses. With increasing commercialization of the worm, its management, which was hitherto organized as a common property resource, has been degraded to almost open access. This paper uses a bioeconomic modelling approach to show that for some optimal allocation of the mopane forest stock, the restrictive harvest period policy advocated by community leaders may not lead to sustainable harvesting of the worm.

Copyright
References
Hide All
Akpalu, W. and Parks, P.J. (2007), ‘Natural resource use conflict: gold mining in tropical rainforest in Ghana’, Environment and Development Economics 12: 5572.
Banjo, A.D., Lawal, O.A., and Songonuga, E.A. (2006), ‘The nutritional value of edible insects in southwestern Nigeria’, African Journal of Biotechnology 5: 298301.
Ben-Shahar, R. (1996), ‘Do elephants over-utilize mopane woodlands in northern Botswana?’, Journal of Tropical Ecology 12: 505515.
Campbell, B., Mandondo, A., Nemarundwe, N., Sithole, B., Jong, W.D., Luckert, M., and Matose, F. (2001), ‘Challenges to proponents of CPR systems – despairing voices from the social forests of Zimbabwe’, World Development 29: 589600.
Campbell, B.M., Shackleton, S., and Wollenberg, E. (2003), ‘Overview of institutional arrangements for managing woodlands’, in Kowero, G., Campbell, B.M., and Sumaila, U.R. (eds), Policies and Governance Structures in Woodlands of Southern Africa, Bogor: CIFOR, pp. 915.
Chavunduka, D.M. (1975), ‘Insects as a source of protein to the African’, Rhodesia Science News 9: 217220.
Chipika, J.T. and Kowero, G. (2000), ‘Deforestation of woodlands in communal areas of Zimbabwe: is it due to agricultural policies?’, Agriculture, Ecosystems and Environment 17: 175185.
Clark, C.W. (1990), Mathematical Bioeconomics: The Optimal Management of Renewable Resources, 2nd edn, New York: John Wiley & Sons.
Defoliart, G.R. (1995), ‘Edible insects as minilivestock’, Biodiversity and Conservation 4: 306321.
FAO (2007), ‘Edible insects: eating worms and protecting parks in Namibia’, NWFP-Digest-L 3.
Ghazoul, J. (ed). (2006) ‘Mopane woodlands and the mopane worm: enhancing rural livelihoods and resource sustainability’, Forest Research Programme Report R7822, DFID, UK.
Gullan, P.J. and Cranston, P.S. (1994), The Insects: An Outline of Entomology, London: Chapman & Hall.
Headings, M.E. and Rahnema, S. (2002), ‘The nutritional value of mopane worms, Gonimbrasia Belina (Lepidoptera: Saturniidae) for human consumption’, a presentation as part of Ten-Minute Papers, Section B, Physiology, Biochemistry, Toxicology, and Molecular Biology, Agricultural Technical Institute, The Ohio State University.
Hobane, P.A. (1995), ‘Amacimbi: the gathering, processing, consumption and trade of edible caterpillars in Bulilimamangwe district’, Centre for Applied Social Studies Occasional Paper 67, Harare, Zimbabwe.
Illgner, P. and Nel, E. (2000), ‘The geography of edible insects in Sub-Saharan Africa: a study of the mopane caterpillar’, The Geographical Journal 166: 336351.
Kajembe, G.C., Monela, G.C., and Mvena, Z.S.K. (2003), ‘Making community-based forest management work: a case study of Duru-Haitemba village forest reserve, Babati, Tanzania’, in Kowero, G., Campbell, B.M., and Sumaila, U.R. (eds), Policies and Governance Structures in Woodlands of Southern Africa, Bogor: CIFOR, pp. 1627.
Kozanayi, W. and Frost, P. (2002), ‘Marketing of mopane worm in southern Zimbabwe’, Institute of Environmental Studies, University of Zimbabwe.
Mapaure, I. (1994), ‘The distribution of Colophospermum mopane (Lguminosae-Caesalpinioideae) in Africa’, Kirkia 5: 15.
Mlambo, D., Nyathi, P., and Mapaure, I. (2005), ‘Influence of Colophospermum mopane on surface soil properties and understorey vegetation in a southern African savanna’, Forest Ecology and Management 121: 394404.
Musvoto, C., Mapaure, I., Gondo, T., Ndeinoma, A., and Mujawo, T. (2007), ‘Reality and references in community mopane (Colophospermum mopane) woodland management in Zimbabwe and Namibia’, International Journal of Social Sciences 1: 173177.
Ostrom, E. (1990), Governing the Commons: The Evolution of Institutions for Collective Action, Cambridge: Cambridge University Press.
Reed, W.J. (1979), ‘Optimal escapement levels in stochastic and deterministic models’, Journal of Environmental Economics and Management 6: 350363.
Stack, J., Dorward, A., Gondo, T., Frost, P., Taylor, F., and Kurebgaseka, N. (2003), ‘Mopane worm utilization and rural livelihoods in Southern Africa’, a paper presented at the International Conference on Rural Livelihoods, Forests and Biodiversity, Bonn, Germany, 19–23 May 2003.
Toms, R. and Thagwana, M. (2005), ‘On the trail of missing mopane worms’, available at http://www.scienceinafrica.co.za/2005/january/mopane.htm
Toms, R.B., Thagwana, M.P., and Lithole, K.D. (2003), ‘The mopane worm-indigenous knowledge in the classroom’, available at www.scienceinafrica.co.za/2003/june/mopane.htm
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Environment and Development Economics
  • ISSN: 1355-770X
  • EISSN: 1469-4395
  • URL: /core/journals/environment-and-development-economics
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 5
Total number of PDF views: 53 *
Loading metrics...

Abstract views

Total abstract views: 270 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 15th August 2018. This data will be updated every 24 hours.