Figure 4.

Abundance-weighted heat map of 97% OTUs that experienced significant (P<0.01) 8-fold or greater turnover between time points for the (a) 2013 Blackhawk Creek and (b) 2014 Butterfly Valley study populations. Tick marks on X-axis denote individual pitcher samples. OTUs are labeled by family and ordered based on the community age in which they were first detected regardless of year. Random forest models trained on OTU abundances from 2013 were able to predict the ages of 2014 samples with 75% accuracy (Supplementary Figure 7).