Journal: PLoS ONE
Article Title: An inter-island comparison of Darwin’s finches reveals the impact of habitat, host phylogeny, and island on the gut microbiome
doi: 10.1371/journal.pone.0226432
Figure Lengend Snippet: A) Gut microbiome samples from Floreana are plotted on the first two principal coordinate axes, with point color and point shape indicating host species and habitat, respectively. Overall a separation between highland and lowland samples can be seen along the first axis, with highland samples and lowland samples mostly to the left and right, respectively. B) Individual amplicon sequence variants (ASVs) are plotted in the same ordination space as the gut microbiome samples. Bacterial phyla with at least 1% relative abundance across samples are color-coded; all other ASVs are gray. The demarcation between highland and lowland samples is recapitulated by the ASVs, with Proteobacteria and Actinobacteria corresponding to highland (left) and lowland (right) samples, respectively.
Article Snippet: To evaluate whether island of origin affects the gut microbiome composition of Darwin’s finches, data from this study were analyzed in conjunction with samples from Santa Cruz Island for the species that occur on both islands: small ground finch (Floreana: 25, Santa Cruz: 13), medium ground finch (F: 8, S: 6), cactus finch (F: 6, S: 6), and small tree finch (F: 14, S: 9), totaling 87 fecal microbiome samples [ ]; ).
Techniques: Amplification, Sequencing