Table 2.
Effect of individual identity, breeding colony, and year on the divergence of adult barn swallow FM.
| Within vs. among individuals (within years) | Within vs. among individuals (among years) | |||||||
|---|---|---|---|---|---|---|---|---|
| Observed diff. | 95% CI range | p | Cliff’s d | Observed diff. | 95% CI range | p | Cliff’s d | |
| OTUs: weighted UniFrac | 0.024 | -0.015~0.013 | 0.001 | 0.138 | 0.011 | -0.016~0.016 | 0.118 | 0.046 |
| OTUs: unweighted UniFrac | -0.004 | -0.015~0.011 | 0.591 | -0.018 | 0.003 | -0.014~0.015 | 0.42 | -0.001 |
| OTUs: Bray–Curtis | 0.079 | -0.022~0.027 | <0.001 | 0.194 | 0.056 | -0.028~0.028 | 0.001 | 0.195 |
| OTUs: Jaccard | -0.002 | -0.007~0.008 | 0.692 | -0.011 | 0.007 | -0.009~0.009 | 0.077 | 0.061 |
| KEGGs: Bray–Curtis | 0.015 | -0.014~0.011 | 0.015 | 0.101 | 0.018 | -0.014~0.015 | 0.026 | 0.157 |
| Within vs. among colonies | Within vs. among years | |||||||
| Observed diff. | 96% CI range | p | Cliff’s d | Observed diff. | 96% CI range | p | Cliff’s d | |
| OTUs: weighted UniFrac | 0.008 | -0.002~0.002 | <0.001 | 0.013 | 0.008 | -0.002~0.002 | <0.001 | 0.061 |
| OTUs: unweighted UniFrac | 0.012 | -0.002~0.002 | <0.001 | 0.049 | 0.012 | -0.002~0.002 | <0.001 | 0.093 |
| OTUs: Bray–Curtis | 0.008 | -0.004~0.004 | <0.001 | 0.029 | 0.008 | -0.003~0.003 | <0.001 | 0.051 |
| OTUs: Jaccard | 0.01 | -0.001~0.001 | <0.001 | 0.072 | 0.01 | -0.001~0.001 | <0.001 | 0.127 |
| KEGGs: Bray–Curtis | 0.003 | -0.002~0.002 | <0.001 | 0.009 | 0.003 | -0.002~0.002 | <0.001 | 0.028 |
Results of permutation-based tests on adult FM samples comparing dissimilarity among samples from (A) the same vs. different individuals sampled during the same breeding season and the same colony, (B) the same vs. different individuals sampled during different breeding seasons and in the same breeding colony, (C) different individuals sampled in the same vs. different breeding colony during the same breeding season, and (D) different individuals sampled in the same breeding colony during the same vs. different breeding season. For OTU data, analyses were run on four dissimilarity index types (weighted and unweighted UniFrac, Bray–Curtis and Jaccard). Shown are observed dissimilarity difference values, 95% confidence intervals of the corresponding permutation-based null distribution, permutation-based probability values and effect size estimates (Cliff’s d). Significant results are in boldface.