Species turnover in the different communities was calculated as the change in Bray-Curtis dissimilarity for samples of the same treatment over time. The Bray-Curtis dissimilarity matrix was calculated using biomass data. We calculated turnover values after 12 days (dissimilarity between samples of the same treatment from day 5 and 12) and 21 days (dissimilarity between samples of the same treatment from day 5 and 21).