Fuzzy set ordination and classification of Serengeti short grasslands, Tanzania

Fuzzy set ordination and classification of Serengeti short grasslands, Tanzania Abstract. Species abundance data from 32 representative stands are used to evaluate the vegetation in the heavily grazed Serengeti short grasslands. The abundant species are: Kyllinga nervosa, Sporobolus ioclados, S. kentro‐phyllus and Eustachys paspaloides, all occurring in elevated areas, and Hypoestes forskalei, which is found in the drainage areas. Numerical classification and fuzzy set ordination revealed four main grassland communities associated with a topographic gradient. The communities are considered distinct since their niches, as computed in the community and environmental fuzzy system space are not overlapping. Leaching, erosion and animal disturbance effects correlated with the topographic gradient are found to determine species composition and overall community structure in the grasslands. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Vegetation Science Wiley

Fuzzy set ordination and classification of Serengeti short grasslands, Tanzania

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Publisher
Wiley
Copyright
1990 IAVS ‐ the International Association of Vegetation Science
ISSN
1100-9233
eISSN
1654-1103
DOI
10.2307/3236059
Publisher site
See Article on Publisher Site

Abstract

Abstract. Species abundance data from 32 representative stands are used to evaluate the vegetation in the heavily grazed Serengeti short grasslands. The abundant species are: Kyllinga nervosa, Sporobolus ioclados, S. kentro‐phyllus and Eustachys paspaloides, all occurring in elevated areas, and Hypoestes forskalei, which is found in the drainage areas. Numerical classification and fuzzy set ordination revealed four main grassland communities associated with a topographic gradient. The communities are considered distinct since their niches, as computed in the community and environmental fuzzy system space are not overlapping. Leaching, erosion and animal disturbance effects correlated with the topographic gradient are found to determine species composition and overall community structure in the grasslands.

Journal

Journal of Vegetation ScienceWiley

Published: Feb 1, 1990

References

  • The patterns of rainfall in the Serengeti ecosystem, Tanzania
    Norton‐Griffiths, Norton‐Griffiths; Herlocker, Herlocker; Pennycuik, Pennycuik
  • Gradient analysis of vegetation
    Whittaker, Whittaker

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