Figure Legends
Figure 1 Relative abundance of bacterial phyla. (A) Stacked barplots showing the relative abundance of each phylum with each column representing one individual sample, ordered by day of capture and separated by sampling period. Phyla with total abundance less than 1% and unclassified phyla are represented by gray. (B) Relative abundance boxplots of the five most common phyla per individual by sampling period representing the change in relative abundance from Cat Island, The Bahamas (CIB) to the first Michigan recapture period (MI1) and the second Michigan recapture period (MI2). Individual points represent the relative abundance of each phyla per individual per sampling period. Significance levels are pairwise comparisons between sampling periods are shown (ns: p>0.05; * p<0.05; ** p<0.01; *** p<0.001; **** p<0.0001).
Figure 2 Alpha diversity measurements of amplicon sequence variants (ASVs) including Observed ASV richness (log transformed, top row) and Shannon Diversity index (bottom row) Boxplots of alpha diversity at each sampling period (Column A). Individual points represent the alpha diversity measure of the individual at that period. Significance levels are pairwise comparisons between sampling periods are shown (ns: p>0.05; * p<0.05; ** p<0.01; *** p<0.001; **** p<0.0001). Alpha diversity change over time in the individuals sampled two (Column B) or three times (Column C). Each line connects the measurements of the same individual between the respective sampling periods. Continuous lines represent a negative change in alpha diversity and dotted lines represent a positive change.
Figure 3 Association between gut microbiome alpha diversity and length of time birds have been in Michigan following end of Spring migration. Each point shows alpha diversity of an individual bird. The blue line represents the moving average between days