Vegetatio

, Volume 57, Issue 2, pp 103–114

Diversity models applied to a chalk grassland

  • H. J. During
  • J. H. Willems
Article

DOI: 10.1007/BF00047305

Cite this article as:
During, H.J. & Willems, J.H. Vegetatio (1984) 57: 103. doi:10.1007/BF00047305

Abstract

In a permanent plot experiment started in 1971, the effects of several management regimes on diversity of a Dutch chalk grassland have been investigated and the results have been compared to existing models predicting general trends in diversity. Treatments included grazing, mowing, and leaving untouched; in the mown plots, the effects of fertilizing and sod cutting were also studied. Grazing resulted in the highest diversity, leaving untouched in the lowest (ca. 42 and 15 spp. per m2, respectively). Within the mown plots, fertilizing decreased diversity. The effects of sod cutting disappeared after some years. The results conform best with the response surface model of Huston (1979) relating diversity to frequency of population reduction and rate of competitive displacement, but a slight modification of the shape of the surface is suggested.

Keywords

Chalk grasslandDiversity modelExclosureFertilizationGrazingManagementMowingSod cuttingSpecies richness

Copyright information

© Dr W. Junk Publishers 1984

Authors and Affiliations

  • H. J. During
    • 1
  • J. H. Willems
    • 1
  1. 1.Department of Plant EcologyUniversity of UtrechtUtrechtThe Netherlands