FIG 5.

Intestinal bacterial communities in different host lineages react differently to a shared perturbation. In these experiments, adult worms were colonized with an even metacommunity of seven bacterial species (MYb27, -45, -53, -71, -120, -181, -238 [All-7]) or a metacommunity where each species in turn is dropped (indicated with the letter “d”) to 10% relative abundance. Worms were sampled at day 6 of colonization to allow time for communities to pass through early ecological succession. Data represent two (daf-16 mutant) or three (N2 and daf-2 mutant) independent runs, with 12 individual worms per host lineage/metacommunity combination; individual worms with <100 CFU (daf-2) or <1,000 CFU (N2 and daf-16 mutant) were removed from data to minimize errors due to low colony counts.