, Volume 44, Issue 6, pp 569–581 | Cite as

Stakeholder perceptions and practices regarding Prosopis (mesquite) invasions and management in South Africa

  • Ross T. Shackleton
  • David C. Le Maitre
  • David M. Richardson


Invasive alien trees impact the environment and human livelihoods. The human dimensions of such invasions are less well understood than the ecological aspects, and this is hindering the development of effective management strategies. Semi-structured interviews were undertaken to investigate the knowledge and perceptions of Prosopis between different stakeholder groups. Chi-squared tests, Welch ANOVAs, and Principle Component Analyses were run. Factors such as land tenure and proximity to invasions were especially important for explaining differences in perceptions and practices relating to Prosopis among different stakeholder groups. Most respondents were aware of Prosopis and considered it to be invasive (i.e., spreading). Costs associated with Prosopis were perceived to exceed benefits, and most stakeholders wanted to see a reduction in the abundance of Prosopis stands. The mean total cost for the management of Prosopis was US$ 1914 year−1 per farm, where costs ranged from under US$ 10 to over UD$ 500 per ha based on invasion densities and objectives for control. The findings highlight the need for more effective management interventions.


Biological invasions Human perceptions Indigenous knowledge Management Stakeholder perceptions Tree invasions 



Funding for this work was provided by the DST-NRF Centre of Excellence for Invasion Biology and the Working for Water program through their collaborative research project on “Integrated management of invasive alien species in South Africa.” DMR acknowledges additional support from the National Research Foundation (grant 85417).


  1. Australian Weeds Committee. 2012. Mesquite (Prosopis spp.) Strategic plan 2012-17. Weeds of National Significance, Australian Governmental Department of Agriculture, Fisheries and Forestry.Google Scholar
  2. Choge, S.K. and B.N. Chikamai. 2004. Experiences of Prosopis utilization and management from outside Kenya. In Proceedings of the Workshop on Integrated Management of Prosopis Species in Kenya. Nairobi: KEFRI.Google Scholar
  3. Chikuni, M.F., C.O. Dudley, and E.Y. Sambo. 2004. Prosopis glandulosa Torry (Leguminosae-Mimosoidae) at Swang’oma, Lake Chilwa plain: A blessing in disguise. Malawi Journal of Science and Technology 7: 10–16.Google Scholar
  4. Dean, W.R.J., M.D. Anderson, S.J. Milton, and T.A. Anderson. 2002. Avian assemblages in native Acacia and alien Prosopis drainage line woodland in the Kalahari, South Africa. Journal of Arid Environments 51: 1–19.CrossRefGoogle Scholar
  5. Dangles, O., F.C. Carpio, M. Villares, and F. Yumisaca. 2010. Community-based participatory research helps farmers and scientists to manage invasive pests in the Ecuadorian Andes. AMBIO 39: 325–335.CrossRefGoogle Scholar
  6. Davis, M.A., M.K. Chew, R.J. Hobbs, A.E. Lugo, J.J. Ewell, G.J. Vermeij, J.H. Brown, M.L. Rosenzweig, et al. 2011. Don’t judge species on their origins. Nature 474: 135–154.CrossRefGoogle Scholar
  7. de Neergaard, A., C. Saarnak, T. Hill, M. Khanyile, A.M. Berzosa, and T. Birch-Thomsen. 2005. Australian wattle species in the Drakensberg region of South Africa—And invasive alien or a natural resource? Agricultural systems 85: 216–233.CrossRefGoogle Scholar
  8. Dickie, I.A., B.M. Bennett, L.E. Burrows, M.A. Nuñez, D.A. Peltzer, A. Porté, D.M. Richardson, M. Rejmánek, et al. 2014. Conflicting values: Ecosystem services and invasive tree management. Biological Invasions 16: 705–719.CrossRefGoogle Scholar
  9. Dos Santos, L.L., A.L.B. Do Nascimento, F.J. Vieira, V.A. Da Silva, R. Voeks, and U.P. Albuquerque. 2014. The cultural value of invasive species: A case study from semi-arid northeastern Brazil. Economic Botany 68: 283–300.CrossRefGoogle Scholar
  10. Dzikiti, S., K. Schachtschneider, V. Naiken, M. Gush, G. Moses, and D.C. Le Maitre. 2013. Water relations and the effects of clearing invasive Prosopis trees on groundwater in an arid environment in the Northern Cape, South Africa. Journal of Arid Environments 90: 103–113.CrossRefGoogle Scholar
  11. Eiswerth, M.E., S.T. Yen, and G.C. van Kooten. 2011. Factors determining awareness and knowledge of aquatic invasive species. Ecological Economics 70: 1672–1679.CrossRefGoogle Scholar
  12. Foster, J., and L.A. Sandberg. 2004. Friends or foe? Invasive species and public green space in Toronto. Geographical Review 94: 178–198.CrossRefGoogle Scholar
  13. Gamtoos Water. 2013. Expression of Interest: Calling all farmers/land users interested in government-assistance with alien invasive clearing in St. Francis Bay and surrounding areas. Retrieved, from Accessed 22 October 2014.
  14. García-Llorente, M., B. Martín-López, J.A. González, P. Alcorlo, and C. Montes. 2008. Social perceptions of the impacts and benefits of invasive alien species: Implications for management. Biological Conservation 141: 2969–2983.CrossRefGoogle Scholar
  15. García-Llorente, M., B. Martín-Lopes, P.A.L.D. Nunes, J.A. González, P. Alcorlo, and C. Montes. 2011. Analyzing the social factors that influence willingness to pay for invasive species management under two different strategies: Eradication and prevention. Environmental Management. doi: 10.1007/s00267-011-9646-z.Google Scholar
  16. Heger, T., A.T. Pahl, Z. Botta-Dukát, F. Gherardi, C. Hoppe, I. Hoste, K. Jax, L. Lindström, et al. 2013. Conceptual frameworks and methods for advancing invasion ecology. AMBIO 42: 527–540.CrossRefGoogle Scholar
  17. Kazmi, S.J.H., S. Shaikh, U.B. Zamir, H. Zafar, A. Rasool, F. Tariq, A. Afzal, and T. Arif. 2009. Ecological and socio-economic evaluation of the use of Prosopis juliflora for bio-char production in Pakistan. Pakistan: Drynet.Google Scholar
  18. Kreuter, U.P., H.E. Amestoy, M.M. Kothmann, D.N. Ueckert, A. McGinty, and S.R. Cummings. 2005. The use of brush management methods: A Texas landowner survey. Rangeland Ecology and Management 58: 284–291.CrossRefGoogle Scholar
  19. Kull, C.A., C.M. Shackleton, P.J. Cunningham, C. Ducatillon, J. Dufour-Dror, K.J. Esler, J.B. Friday, A.C. Gouveia, et al. 2011. Adoption, use and perception of Australian acacias around the world. Diversity and Distributions 17: 822–836.CrossRefGoogle Scholar
  20. Low, T. 2012a. Australian acacias: Weeds or useful trees? Biological Invasions 14: 2217–2227.CrossRefGoogle Scholar
  21. Low, T. 2012b. In denial about dangerous aid. Biological Invasions 14: 22235–22236.Google Scholar
  22. McNeely, J.A. (ed.). 2001. Human dimensions of invasive alien species. IUCN: Gland and Cambridge.Google Scholar
  23. Maundu, P., S. Kibet, Y. Morimoto, M. Imbumi, and R. Adeka. 2009. Impacts of Prosopis juliflora on Kenya’s semi-arid and arid ecosystems and local livelihoods. Biodiversity 10: 33–50.CrossRefGoogle Scholar
  24. McNeely, J.A. 2011. Xenophobia or conservation: some human dimensions. In Invasive and introduced plants and animalsHuman perceptions, attitudes and approaches to management ed. I.D. Rotherham and R.A. Lambert. London: Earthscan.Google Scholar
  25. Moran, V.C., J.H. Hoffmann, D. Donnelly, B.W. van Wilgen and H.G. Zimmermann. 2000. Biological control of alien, invasive pine trees (Pinus species) in South Africa. In International symposium on biological control of weeds. Montana: Montana State University.Google Scholar
  26. Mwangi, M and B. Swallow. 2005. Invasion of Prosopis juliflora and local livelihoods: Case study from the Lake Baringo area of Kenya. ICRAF Working Paper—no. 3. Nairobi: World Agroforestry Centre.Google Scholar
  27. Ndhlovu, T., S.J. Milton-Dean, and K.J. Esler. 2011. Impact of Prosopis (mesquite) invasion and clearing on the grazing capacity of semiarid Nama Karoo rangeland, South Africa. African Journal of Range and Forage Science 28: 129–137.CrossRefGoogle Scholar
  28. Pasiecznik, N.M., P. Felker, P.J.C. Harris, L.N. Harsh, G. Cruz, J.C. Tewari, K. Cadoret, and L.J. Maldonado. 2001. The Prosopis juliflora–Prosopis pallida complex: A Monograph. Coventry: HDRA.Google Scholar
  29. Pasiecznik, N.M., S.K. Choge, G.M. Muthike, S. Chesang, C. Fehr, P. Bakewell-Stone, J. Wright, et al. 2006. Putting knowledge on Prosopis into use in Kenya—Pioneering advances in 2006. Nairobi and Coventry: KEFRI and HDRA.Google Scholar
  30. Pimentel, D. 2002. Biological invasions: Economic and environmental costs of alien plant, animal and microbe species. New York: CRC.CrossRefGoogle Scholar
  31. Pyšek, P., and D.M. Richardson. 2010. Invasive species, environmental change and management, and health. Annual Review of Environment and Resources 35: 25–55.Google Scholar
  32. Rai, R.K., H. Scarborough, N. Subedi, and B. Lamichane. 2012. Invasive plants—Do they devastate or diversify rural livelihoods? Rural farmers’ perception of three invasive plants in Nepal. Journal for Nature Conservation 20: 170–176.CrossRefGoogle Scholar
  33. Rai, R.K., and H. Scarborough. 2014. Understanding the effects of invasive plants on rural forest-dependent communities. Small Scale Forestry. doi: 10.007/s1184201492737.Google Scholar
  34. Richardson, D.M. 1998. Commercial forestry and agroforestry as sources of invasive alien trees and shrubs. In Invasive species and biodiversity management, ed. O.T. Sandlund, P.J. Schei, and A. Viken, 237–257. Dordrecht: Kluwer Academic Publishers.Google Scholar
  35. Richardson, D.M., C. Hui, M. Nunez, and A. Pauchard. 2014. Tree invasions—Patterns and processes, challenges & opportunities. Biological Invasions 16: 473–481.CrossRefGoogle Scholar
  36. Schachtschneider, K., and E.C. February. 2013. Impact of Prosopis invasion on a keystone tree species in the Kalahari Desert. Plant Ecology 214: 597–605.CrossRefGoogle Scholar
  37. Shackleton, C.M., D. McGarry, S. Fourie, J. Gambiza, S.E. Shackleton, and C. Fabricius. 2007. Assessing the effects of invasive alien species on rural livelihoods: Case examples and a framework from South Africa. Human Ecology 35: 113–127.CrossRefGoogle Scholar
  38. Shackleton, S.E., D. Kirby, and J. Gambiza. 2011. Invasive plants—Friends or foes? Contribution of prickly pear (Opuntia ficus-indica) to livelihoods in Makana Municipality, Eastern Cape, South Africa. Development Southern Africa 28: 177–193.CrossRefGoogle Scholar
  39. Shackleton, R.T., D.C. Le Maitre, N.M. Pasiecznik, and D.M. Richardson. 2014. Prosopis: A global assessment of the biogeography, benefits, impacts and management of one of the world’s worst woody invasive plant taxa. AOB Plants 6: plu027. doi: 10.1093/aobpla/plu027.CrossRefGoogle Scholar
  40. Shackleton, R.T., D.C. Le Maitre, and D.M. Richardson. 2015. Prosopis invasions in South Africa: Populations structures and impacts on native tree population stability. Journal of Arid Environments 114: 70–78.Google Scholar
  41. Stave, J., G. Oba, I. Nordal, and N.C. Stenseth. 2007. Traditional ecological knowledge of a riverine forest in Turkana, Kenya: Implications for research and management. Biodiversity Conservation 16: 1471–1489.CrossRefGoogle Scholar
  42. Steenkamp, H.E., and S.L. Chown. 1996. Influence of dense stands of an exotic tree, Prosopis glandulosa BENSON, on savannah dung beetle (Coleoptera: Scarabaeinae) assemblage in Southern Africa. Biological Conservation 78: 305–311.CrossRefGoogle Scholar
  43. Van den Berg, E.C. 2010. Detection, quantification and monitoring Prosopis spp. in the Northern Cape Province of South Africa using remote sensing and GIS. MSc Science. Potchefstroom: North-West University.Google Scholar
  44. van Klinken, R. 2012. Prosopis spp.—Mesquite. In Biological control of weeds in Australia, ed. M. Julien, R. McFadyen, and J. Cullen. Melbourne: CSIRO.Google Scholar
  45. van Wilgen, B.W., C. Dyer, J.H. Hofmann, P. Ivey, D.C. Le Maitre, J.L. Moore, D.M. Richardson, et al. 2011. National-scale strategic approaches for managing introduced plants: Insights from Australian acacias in South Africa. Diversity and Distributions 17: 1060–1075.CrossRefGoogle Scholar
  46. van Wilgen, B.W., G.G. Forsyth, D.C. Le Maitre, A. Wannenburgh, D.F. Kotze, E. van den Berg, and L. Henderson. 2012. An assessment of the effectiveness of a large, national-scale invasive alien plant control strategy in South Africa. Biological Conservation 148: 28–38.CrossRefGoogle Scholar
  47. van Wilgen, B.W., and D.M. Richardson. 2014. Challenges and trade-offs in the management of invasive alien trees. Biological Invasions 16: 721–734.CrossRefGoogle Scholar
  48. Wise, R.M., B.W. van Wilgen, and D.C. Le Maitre. 2012. Costs, benefits and management options for an invasive alien tree species: The case of mesquite in the Northern Cape, South Africa. Journal of Arid Environments 84: 80–90.CrossRefGoogle Scholar
  49. Zachariades, C., J.H. Hoffmann, and A. Roberts. 2011. Biological control of mesquite (Prosopis species) (Fabaceae) in South Africa. African Entomology 19: 402–415.CrossRefGoogle Scholar

Copyright information

© Royal Swedish Academy of Sciences 2014

Authors and Affiliations

  • Ross T. Shackleton
    • 1
  • David C. Le Maitre
    • 1
    • 2
  • David M. Richardson
    • 1
  1. 1.Centre for Invasion Biology, Department of Botany and ZoologyStellenbosch UniversityMatielandSouth Africa
  2. 2.Natural Resources and the EnvironmentCSIRStellenboschSouth Africa

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