Figure 7.

The activity dynamics of the 50 most abundant taxa in response to the press disturbance. (a) Heatmap and dendrogram of abundant taxa reveal common patterns of detection and activity. Black cells are taxa that were undetected (coded as NA) in the 16S rRNA gene (DNA) community, and white cells are taxa that were detected in the DNA but had 16S rRNA:rRNA gene < 1 (inactive, coded as 0). The heat gradient indicates each taxon's abundance relative to its maximum observed in disturbance treated mesocosms during the experiment. Immigration is indicated for weeks 20 and 45 by minus (no) and plus (yes) signs. (b) Summary of activity response patterns to the disturbance of the top 50 taxa, including resistant, sensitive, early and late transition, resilient, opportunist, and immigrant taxa. Definitions of each of these categories of taxa are found in the main text.