Do elephants influence the organisation and function of a South African grassland?

Rangeland Journal

Volumn 31, Issue 4, 2009, Pages 395-403

  Parker, D M ^a   Bernard, R T F ^a   Adendorff, J ^b  

^a RHODES UNIVERSITY   (South Africa)

^b SOUTH AFRICAN NATIONAL PARKS   (South Africa)

Author keywords

Landscapes; Patch dynamics; Rangelands; Sustainability

Indexed keywords

ELEPHANTIDAE; LOXODONTA AFRICANA;

EID: 71949087998     PISSN: 10369872     EISSN: None     Source Type: Journal    
DOI: 10.1071/RJ08039     Document Type: Article

References (41)

1. Aguiar, M. R., and Sala, O. E. (1999). Patch structure, dynamics and implications for the functioning of arid ecosystems. Trends in Ecology & Evolution 14, 273-277. doi: 10.1016/S0169-5347(99)01612-2 (Pubitemid 29283055)
2. Anderson, G. D., and Walker, B. L. (1974). Vegetation composition and elephant damage in the Sengwa Wildlife Research Area, Rhodesia. Journal of the Southern African Wildlife Management Association 4, 1-14.
3. Ata Rezaei, S., Arzani, H., and Tongway, D. (2006). Assessing rangeland capability in Iran using landscape function indices based on soil surface attributes. Journal of Arid Environments 65, 460-473. doi: 10.1016/ j.jaridenv.2005.08.003
4. Barnes, R. F. W. (1980). The decline of the baobab tree in Ruaha National Park, Tanzania. African Journal of Ecology 18, 243-252. doi: 10.1111/ j.1365-2028.1980.tb01053.x
5. Britton, A. J., Pearce, I. S. K., and Jones, B. (2005). Impacts of grazing on montane heath vegetation in Wales and implications for the restoration of montane areas. Biological Conservation 125, 515-524. doi: 10.1016/ j.biocon.2005.04.014
6. Carline, K. A., Jones, H. E., and Bardgett, R. D. (2005). Large herbivores affect the stoichiometry of nutrients in a regenerating woodland ecosystem. Oikos 110, 453-460. doi: 10.1111/j.0030-1299.2005.13550.x (Pubitemid 41296762)
7. Cowling, R., and Kerley, G. (2002). Impacts of elephants on the flora and vegetation of subtropical thicket in the Eastern Cape. In: 'Elephant Conservation and Management in the Eastern Cape. Workshop Proceedings'. (Eds G. Kerley, S. Wilson and A. Massey.) pp. 55-72. (University of Port Elizabeth: Port Elizabeth, South Africa.)
8. Cumming, D. H. M., andCumming, G. (2003). Ungulate community structure and ecological processes: Body size, hoof area and trampling in African savannas. Oecologia 134, 560-568.
9. Cumming, D. H. M., Fenton, M. B., Rautenbach, L., Taylor, R. D., Cumming, G. S., Cumming, M. S., Dunlop, J. M., Ford, A. G., Hovorka, M. D., Johnston, D. S., Kalcounis, M., Mahlangu, Z., and Portfors, C. V. R. (1997). Elephants, woodlands and biodiversity in southern Africa. South African Journal of Science 93, 231-236.
10. Dorrough, J., Ash, J., and McIntyre, S. (2004). Plant responses to livestock grazing frequency in an Australian temperate grassland. Ecography 27, 798-810. doi: 10.1111/j.0906-7590.2004.04004.x (Pubitemid 40042975)
11. Field, C. R., and Ross, I. C. (1976). The savanna ecology of Kidepo National Park II. Feeding ecology of elephant and giraffe. East African Wildlife Journal 14, 10-15.
12. Guldemond, R., and Van Aarde, R. (2007). The impact of elephants on plants and their community variables in South Africa's Maputaland. African Journal of Ecology 45, 327-335. doi: 10.1111/j.1365-2028. 2007.00714.x
13. Gutzerová, N., and Herben, T. (2001). Patch dynamics and local succession in a sandstone area with frequent disturbance. Journal of Vegetation Science 12, 533-544. doi: 10.2307/3237005
14. Guy, P. R. (1976). The feeding behaviour of elephant (Loxodonta africana) in the Sengwa area, Rhodesia. South African Journal of Wildlife Research 6, 55-63.
15. Hurlbert, S. H. (1984). Pseudoreplication and the design of ecological field experiments. Ecological Monographs 54, 187-211. doi: 10.2307/ 1942661
16. Jäkäläniemi, A., Tuomi, J., Siikamäki, P., and Kilpiä, A. (2005). Colonizationextinction and patch dynamics of the perennial riparian plant Silene tatarica. Journal of Ecology 93, 670-680. doi: 10.1111/j.1365- 2745.2005.01001.x
17. Johnson, B. E., and Cushman, J. H. (2007). Influence of a large herbivore reintroduction on plant invasions and community composition in a California grassland. Conservation Biology 21, 515-526. doi: 10.1111/ j.1523-1739.2006. 00610.x
18. Kerley, G., Wilson, S., and Massey, A. (2002). Elephant conservation and managementin the Eastern Cape. In 'WorkshopProceedings'. (University of Port Elizabeth: Port Elizabeth, South Africa.)
19. Kerley, G. I. H., and Landman, M. (2006). The impacts of elephants on biodiversity in the Eastern Cape Subtropical Thickets. South African Journal of Science 102, 395-402.
20. Kerley, G. I. H., Tongway, D., and Ludwig, J. (1999). Effects of goat and elephant browsing on soil resources in succulent thicket, Eastern Cape, South Africa. In: 'People and Rangelands: Building the Future. Proceedings of the VI International Rangeland Congress'. (Eds D. Freudenberger and D. Eldridge.) pp. 116-117. (VI International Rangeland Congress Inc.: Aitkenvale, Qld.)
21. Leuthold, W. (1996). Recovery of woody vegetation in Tsavo National Park, Kenya, 1970-94. African Journal of Ecology 34, 101-112. doi: 10.1111/ j.1365-2028.1996.tb00605.x
22. Low, A. B., and Rebelo, A. G. (1996). 'Vegetation of South Africa, Lesotho and Swaziland: A Companion to the Vegetation Map of South Africa, Lesotho and Swaziland.' (Department of Environmental Affairs and Tourism: Pretoria, South Africa.)
23. Ludwig, J., Tongway, D., Freudenberger, D., Noble, J., and Hodgkinson, K. (2003). 'Landscape Ecology Function and Management: Principles from Australia's Rangelands.' (CSIRO Publishing: Melbourne.)
24. Maestre, F. T., and Cortina, J. (2004). Insights into ecosystem composition and function in a sequence of degraded semiarid steppes. Restoration Ecology 12, 494-502. doi: 10.1111/j.1061-2971.2004.03106.x (Pubitemid 40032724)
25. Maestre, F. T., and Puche, M. D. (2009). Indices based on surface indicators predict soil functioning in Mediterranean semi-arid steppes. Applied Soil Ecology 41, 342-350. doi: 10.1016/j.apsoil.2008.12.007
26. McEvoy, P. M., Flexen, M., and McAdam, J. H. (2006). The effects of livestock grazing on ground flora in broadleaf woodlands in Northern Ireland. Forest Ecology and Management 225, 39-50. doi: 10.1016/ j.foreco.2005.12.026
27. Olofsson, J. (2006). Short- and long-term effects of changes in reindeer grazing pressure on tundra heath vegetation. Journal of Ecology 94, 431-440. doi: 10.1111/j.1365-2745.2006.01100.x
28. Owen-Smith, N., Kerley, G. I. H., Page, B., Slotow, R., and Van Aarde, R. J. (2006). A scientific perspective on the management of elephants in the Kruger National Park and elsewhere. South African Journal of Science 102, 389-394.
29. Owen-Smith, R. N. (1992). 'Megaherbivores: The Influence of Very Large Body Size on Ecology.' (Cambridge University Press: Cambridge.)
30. Palmer, A. R., Killer, F. J., Avis, A. M., and Tongway, D. (2001). Defining function in rangelands of the Peddie district, Eastern Cape, using landscape function analysis. African Journal of Range and Forage Science 18, 53-58.
31. Parker, D., and Bernard, R. (2008). Lessons from aloes in the thicket biome: Reconstructing past elephant browsing to understand the present. South African Journal of Science 104, 163-164.
32. Rambo, J. L., and Faeth, S. H. (1999). Effect of vertebrate grazing on plant and insect community structure. Conservation Biology 13, 1047-1054. doi: 10.1046/j.1523-1739.1999.98504.x (Pubitemid 29475536)
33. Rao, P. V. (1998). 'Statistical Research Methods in the Life Sciences.' (Duxbury Press: Pacific Grove, CA.)
34. Ruess, R. W., and Halter, F. L. (1990). The impact of large herbivores on the Seronera woodlands, Serengeti National Park, Tanzania. African Journal of Ecology 28, 259-275. doi: 10.1111/j.1365-2028.1990.tb01161.x
35. Thomson, P. J. (1975). The role of elephants, fire and other agents in the decline of a Brachystegia boehmii woodland. Journal of the Southern African Wildlife Management Association 5, 11-18.
36. Tomlinson, K. W., and O'Connor, T. G. (2005). The effect of defoliation environment on primary growth allocation and secondary tiller recruitment of two bunchgrasses. African Journal of Range and Forage Science 22, 29-36.
37. Tongway, D. J., and Hindley, N. L. (2004a). 'Landscape Function Analysis: Procedures for Monitoring and Assessing Landscapes, With Special Reference to Minesites and Rangelands.' (CSIRO Publishing: Melbourne.)
38. Tongway, D. J., and Hindley, N. L. (2004b). Landscape function analysis manual (Spreadsheet). Available at: Www.csiro.au/services/ EcosystemFunctionAnalysis.html (accessed 28 June 2009).
39. Van Aarde, R. J., Jackson, T. P., and Ferreira, S. M. (2006). Conservation science and elephant management in southern Africa. South African Journal of Science 102, 385-388.
40. van de Koppel, J., Rietkerk, M., Van Langevelde, F., Kumar, L., Klausmeier, C. A., Fryxell, J. M., Hearne, J. W., Van Andel, J., de Ridder, N., Skidmore, A., Stroosnijder, L., and Prins, H. H. T. (2002). Spatial heterogeneity and irreversible vegetation change in semiarid grazing systems. American Naturalist 159, 209-218. doi: 10.1086/ 324791 (Pubitemid 34155858)
41. Western, D., and Maitumo, D. (2004). Woodland loss and restoration in a savanna park: A 20-year experiment. African Journal of Ecology 42, 111-121. doi: 10.1111/j.1365-2028.2004.00506.x (Pubitemid 38831361)