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1 April 2002 Do plant modules describe community structure better than biomass? A comparison of three abundance measures
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Abstract

Plants are composed of modules, such as shoots and leaves. However, modules have been overlooked as potential abundance measures in describing plant communities. We sampled 8 communities, to examine whether module counts gave different conclusions from biomass on community structure, and better discriminated between communities. Different abundance measures – number of leaves, number of shoots and photosynthetic biomass – gave different results for between-site comparisons of evenness and rank consistency. Since evenness is intended to represent a feature of the whole community, it should vary more between communities than within; module-based abundance achieved this better than biomass. It is speculated that the restrictions on species co-occurrences when plant communities assemble may sometimes be based on the number of modules rather than on biomass.

Abbreviation: PSU = Photosynthetic unit.

Norman W. H. Mason, Kit MacGillivray, John B. Steel, and J. Bastow Wilson "Do plant modules describe community structure better than biomass? A comparison of three abundance measures," Journal of Vegetation Science 13(2), (1 April 2002). https://doi.org/10.1658/1100-9233(2002)013[0185:DPMDCS]2.0.CO;2
Received: 25 May 2001; Accepted: 2 January 2002; Published: 1 April 2002
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