Oecologia

, Volume 82, Issue 2, pp 264–274

Large herbivores that strive mightily but eat and drink as friends

  • W. F. de Boer
  • H. H. T. Prins
Original Papers

Summary

Grazing in patches of Cynodon dactylon and of Sporobolus spicatus by four large herbivores, and the interaction between these sedentary herbivores was studied in Lake Manyara National Park, northern Tanzania. The herbivores were the African buffalo, Syncerus caffer; the African elephan, Loxodonta africana; the Burchell's zebra, Equus burchelli; and the wildebeest, Connochaetus taurinus. Four different hypotheses of the interactions between the herbivores were tested, viz., increased predator detection/protection through association of species, facilitation of the food intake through the influence of other species, use by other species of the food manipulation strategy of buffalo, and interspecific competition for food. On the level of a single day, zebra and wildebeest were symbiotic, which could have been caused by an increased chance of predator detection. A similar association between buffalo and wildebeest or zebra was also detected on C. dactylon grasslands. There was no indication of facilitation between any of the herbivores. Buffalo had a despotic relationship with elephant, that is the elephant's consumption was lowered when buffalo had visited a patch prior to their arrival. When elephant and buffalo arrived at the same time there appeared to be scramble competition between them.

Habitat overlap was calculated for four pairs of species. In conjunction with the analyses of the patch visits, it was concluded that a small overlap was associated with interspecific competition and a large habitat overlap was associated with symbiosis.

Key words

Competition Facilitation Herbivores Habitat overlap East Africa 

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References

  1. Beekman JH, Prins HHT (1989) Feeding strategies of sedentary large herbivores in East Africa, with emphasis on the African buffalo. Afr J Ecol pp 129–147Google Scholar
  2. Bell RHV (1970) The use of the herb layer by grazing ungulates in the Serengeti. In: Watson A (ed) Animal populations in relation to their food resource. Blackwell Scientific Publications, Oxford, pp 111–123Google Scholar
  3. Coe MJ, Cumming DH, Phillipson J (1976) Biomass and production of large african herbivores in relation to rainfall and primary production. Oecologia 22: 341–354Google Scholar
  4. Delany MJ, Happold DCD (1979) Ecology of African mammals. Longman Group Ltd, LondonGoogle Scholar
  5. Drent RH, Prins HHT (1987) The herbivore as prisoner of its food supply. In: van Andel J, Bakker JP, Snaydon RW (eds) Disturbance in grasslands-species and population responses. Dr W Junk Publishing Cie, Dordrecht, pp 133–149Google Scholar
  6. Field CR (1972) The food habits of wild ungulates in Uganda by analysis of stomach contents. E Afr Wildl J 10: 17–42Google Scholar
  7. Greenway PJ, Vesey-FitzGerald DF (1968) The vegetation of Lake Manyara National Park. J Ecol 57: 127–149Google Scholar
  8. Gwynne MD, Bell RHV (1968) Selection of vegetation components by grazing ungulates in the Serengeti National Park. Nature 220: 390–393Google Scholar
  9. Hansen RM, Mugambi MM, Bauni SM (1985) Diets and trophic ranking of ungulates in the northern Serengeti. J Wildl Manage 49: 823–829Google Scholar
  10. Hofmann RR (1973) The ruminant stomach-stomach structure and feeding habits of East African ruminants. East African Literature Bureau, Nairobi/Kampala/Dar es SalaamGoogle Scholar
  11. Jarman PJ (1971) Diets of large mammals in the woodlands around Lake Kariba, Rhodesia. Oecologia 8: 157–178Google Scholar
  12. Jarman PJ, Sinclair ARE (1979) Feeding strategy and the pattern of resource partitioning in ungulates. In: Sinclair ARE, Norton-Griffiths M (eds) Serengeti, dynamics of an ecosystem, University of Chicago Press, Chicago, pp 130–163Google Scholar
  13. Leuthold W (1978) Ecological seperation among browsing ungulates in Tsavo East National Park, Kenya. Oecologia 35: 241–252Google Scholar
  14. Loth PE, Prins HHT (1986) Spatial patterns of the landscape and vegetation of Lake Manyara National Park. ITC J 1986(2): 115–130Google Scholar
  15. Maddock L (1979) The “migration” and grazing succession. In: Sinclair ARE, Norton-Griffiths M (eds) Serengeti, dynamics of an ecosystem. University of Chicago Press, Chicago, pp 104–129Google Scholar
  16. McNaughton SJ (1976) Serengeti migratory wildebeest: facilitation of energy flow by grazing. Science 191: 92–94Google Scholar
  17. Mills MGL, Wolff P, LeRiche EAN, Meyer IJ (1978) Some population characteristics of the lion Panthera leo in the Kalahari Gemsbok National Park. Koedoe 21: 163–171Google Scholar
  18. Pianka ER (1973) The structure of lizard communities. Ann Rev Ecol Syst 4: 53–74Google Scholar
  19. Prins HHT (1988) Plant phenology patterns in Lake Manyara National Park, northern Tanzania. J Biogeogr 15: 465–480Google Scholar
  20. Prins HHT, Beekman JH (1989) A balanced diet as a goal of grazing-the food of the Manyara buffalo. Afr J Ecol pp 241–259Google Scholar
  21. Prins HHT, Iason GR (1989) Dangerous lions and nonchalant buffalo. Behaviour pp 262–296Google Scholar
  22. Prins HHT, Loth PE (1988) Rainfall patterns as background to plant phenology in northern Tanzania. J Biogeogr 15: 451–563Google Scholar
  23. Schoener TW (1983) Field experiments on interspecific competition. Am Nat 122: 240–285Google Scholar
  24. Sinclair ARE (1985) Does interspecific competition or predation shape the african ungulate community. J Anim Ecol 54: 899–918Google Scholar
  25. Sinclair ARE, Norton-Griffiths M (1982) Does competition or facilitation regulate migrant ungulate populations in the Serengeti? A test of hypotheses. Oecologia 53: 364–369Google Scholar
  26. SPSSx (1986) SPSS Inc., ChicagoGoogle Scholar
  27. Stelfox JG, Peden DG, Epp H, Hudson RJ, Mbugua SW, Agatsiva JL, Amuyunzu CL (1985) Herbivore dynamics in southern Narok, Kenya. J Wildl Man 50: 339–347Google Scholar
  28. Steward DRM, Steward J (1970) Food preference data by faecal analysis for African plain ungulates. Zoologica Africana 15: 115–129Google Scholar
  29. Vandermeer JH (1972) Niche theory. Ann Rev Ecol Syst 3: 107–132Google Scholar
  30. Van Soest PJ (1982) Nutritional ecology of the ruminant. O & B Books, Corvallis (Ore)Google Scholar
  31. Van Wijngaarden W (1985) Elephants-trees-grass-grazers; relationships between climate, soils, vegetation and large herbivores in a semi-arid savanna ecosystem (Tsavo, Kenya). ITC Publication 4, Endschede/Ph D Thesis, University of WageningenGoogle Scholar

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • W. F. de Boer
    • 1
  • H. H. T. Prins
    • 1
  1. 1.Zoölogisch LaboratoriumRijksuniversiteit GroningenHarenThe Netherland

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