NUMERICAL ANALYSIS OF SURFACE POLLEN SPECTRA FROM BANKHEAD MOSS, FIFE

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SUMMARY

An investigation is described which examined the extent to which surface pollen spectra from three transects across a small raised bog reflected the vegetation communities on the bog. Three classification studies of the spectra are described: (i) a principal components analysis; (ii) two hierarchical partitioning methods; (iii) a constrained classification, in which groups of spectra must be formed from neighbouring samples along the transects. Advantages and limitations of these classificatory procedures are discussed, and a synthesis of the results is advocated. The groups of spectra suggested by this approach are found to correspond closely to a grouping of spectra according to the vegetation community from which they were drawn, indicating the existence of characteristic pollen assemblages which are closely related to vegetation communities.

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