Defoliation effects on basal cover and productivity in perennial grasslands of Ethiopia

Plant Ecology

Volumn 169, Issue 2, 2002, Pages 245-257

  Jacobs, Michael J ^a   Schloeder, Catherine A ^a  

^a NONE   (United States)

Author keywords

Basal cover; Dominant grasses; East Africa; Ethiopia; Omo; Rainfall gradient

Indexed keywords

BASAL AREA; DEFOLIATION; ENVIRONMENTAL GRADIENT; GRASSLAND; RAINFALL; VEGETATION COVER;

ETHIOPIA; OMO NATIONAL PARK;

POACEAE;

EID: 0242574284     PISSN: 13850237     EISSN: None     Source Type: Journal    
DOI: 10.1023/A:1026081723022     Document Type: Article

References (26)

1. Belsky A.J. 1985. Long-term vegetation monitoring in the Serengeti National Park, Tanzania. Journal of Applied Ecology 22: 449-460.
2. Bonham C.D. 1989. Measurements for Terrestrial Vegetation. John Wiley & Sons, New York.
3. Brady W.W., Mitchell J.E., Bonham C.D. and Cook J.W. 1995. Assessing the power of the point-line transect to monitor changes in plant basal cover. Journal of Range Management 48: 187-190.
4. Boutton T.W., Tieszen L.L. and Imbamba S.K. 1988. Biomass dynamics of grassland vegetation in Kenya. African Journal of Ecology 26: 89-101.
5. Caldwell M.M. 1984. Plant requirements for prudent grazing. In: Developing Strategies for Rangeland Management. National Resource Council, National Academy of Science. Westview Press, Boulder, CO, USA, pp. 117-152.
6. Coughenour M.B., McNaughton S.J. and Wallace L.L. 1985. Responses of an African tall-grass (Hyparrhenia filipendula stapf.) to defoliation and limitations of water and nitrogen. Oecologia 68: 80-86.
7. Deshmukh I.K. and Baig M.N. 1983. The significance of grass mortality in the estimation of primary production in African grasslands. African Journal of Ecology 21: 19-23.
8. Hand D.J. and Taylor C.C. 1987. Multivariate analysis of variance and repeated measures; a practical approach for behavioural scientists. Chapman and Hall, London.
9. Hillman J.C. 1993. Ethiopia: Compendium of Wildlife Conservation Information. NYZS-The Wildlife Conservation Society, New York.
10. Hodgkinson K.C. 1992. Elements of grazing strategies for perennial grass management in rangelands. In: Chapin G. (ed.), Desertified Grasslands: Their Biology and Management. Symposium No.13. Linnean Society of London, London, England, pp. 76-94.
11. 4 Grasses and Cereals: Growth, Development and Stress Response. John Wiley & Sons, New York.
12. Le Houerou H.N. and Hoste C.H. 1977. Rangeland production and annual rainfall relations in the Mediterranean Basin and in the African Sahelo-Sudanian Zone. Journal of Rangeland Management 30: 181-189.
13. Jacobs M.J. 1999. Influence of grazing, fire and rainfall regime on plant species dynamics in an Ethiopian perennial grassland. PhD Dissertation, Utah State University, Logan.
14. Jacobs M.J. and Schloeder C.A. 2002. Fire frequency and species associations in perennial grasslands of southwest Ethiopia. African Journal of Ecology 40: 1-9.
15. McNaughton S.J. 1979. Grassland-herbivore dynamics. In: Sinclair A.R.E. and Norton-Griffiths M. (eds), Serengeti Dynamics of an Ecosystem. University of Chicago Press, Chicago, pp. 46-81.
16. McNaughton S.J. 1988. Large mammals and process dynamics in African ecosystems. Bioscience 11: 794-800.
17. Milchunas D.G. and Lauenroth W.K. 1993. Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecological Monographs 63: 327-366.
18. Milchunas D.G., Sala O.E. and Lauenroth W.K. 1988. A generalized model of the effects of grazing by large herbivores on grassland community structure. American Naturalist 132: 87-106.
19. Norton-Griffiths M. 1979. The influence of grazing, browsing and fire on the vegetation dynamics of the Serengeti. In: Sinclair A.R.E. and Norton-Griffiths M. (eds), Serengeti: Dynamics of an Ecosystem. University of Chicago Press, Chicago, pp. 310-352.
20. Pratt D.J. and Gwynne M.D. 1977. Rangeland Management and Ecology in East Africa. Hodder and Stoughton, London.
21. Schloeder C.A. 1999. Investigation of savanna vegetation-determinant relationships using spatial statistics. PhD Dissertation, Utah State University, Logan.
22. Schloeder C.A. and Jacobs M.J. 1993. Report on a feasibility study conducted in the Omo National Park, Ethiopia. NYZS-The Wildlife Conservation Society, New York.
23. Smart N.O.E., Hatton J.C. and Spence D.H.N. 1985. The effects of long-term exclusion of large herbivores on vegetation in Murchison Falls National Park, Uganda. Biological Conservation 33: 229-245.
24. Thornton D.D. 1971. The effect of complete removal of hippopotamus on grassland in the Queen Elizabeth NP, Uganda. East African Wildlife Journal 9: 47-55.
25. Vallentine J.F. 1990. Grazing Management. Academic Press, San Diego.
26. Watson L. and Dallwitz M.J. 1992. Grass Genera of the World. CAB International, Wallingford, Oxon, UK.