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Mycological Progress

, Volume 3, Issue 4, pp 267–274 | Cite as

Comparison of species diversity of arbuscular mycorrhizal fungi in winter-rainfall areas of South Africa and summer-rainfall areas of Namibia

  • Elisabeth UhlmannEmail author
  • Claudia Görke
  • Andreas Petersen
  • Franz Oberwinkler
Article

Abstract

Arbuscular mycorrhizal fungi and their mycorrhizae were studied in winter rainfall areas of western South Africa. The species composition, spore numbers, and mycorrhization were attempted to correlate with various abiotic factors. Mycorrhization of grasses was significantly correlated with pH and spore numbers and negatively correlated with electric conductivity, total N-content, and total P-content of the soils. Spore numbers were negatively correlated with electric conductivity and total N-content.

These relationships observed for the winter rainfall area were compared to data available for summer rainfall areas in Namibia, where the same amount of rain falls. Factors influencing species distribution were geographic distance and to a lesser extent rainfall. Rainfall was a stronger determinant of species composition in the summer rainfall area than in the winter rainfall area.

These findings show that abiotic factors alone are not sufficient in explaining species distribution, and that other factors (e.g. the availability of suitable host plants) have to be taken into account when comparing different study sites.

Keywords

Electric Conductivity Host Plant Species Composition Species Diversity Arbuscular Mycorrhizal Fungus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© DGfM 2004

Authors and Affiliations

  • Elisabeth Uhlmann
    • 1
    Email author
  • Claudia Görke
    • 1
  • Andreas Petersen
    • 2
  • Franz Oberwinkler
    • 1
  1. 1.Spezielle Botanik & MykologieUniversity of TübingenTübingenGermany
  2. 2.Institute for Soil ScienceUniversity of HamburgHamburgGermany

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