Fig. 3

A taxon’s relative gene expression is predictive of its change in relative abundance. Log₁₀ fold change in the relative abundance of a species from one timepoint (T1) to the next (T2) as a function of its relative expression at T1 (A). Species-specific intercepts from this model represent the minimum relative expression required for a species to maintain its relative abundance from T1 to T2 (B)