Evenness, i.e. the frequency distribution of the different species, also decreased along the fermentation. This was due to the dominance exerted by the species L. pentosus, although statistically significant differences could only be observed in patio #2. This effect was most probably due to the change in the dominant species from the initial stage, i.e. A. viridans/urinaeequi, to the middle and final stages, dominated by L. pentosus.