Table 1.
Taxa recovered exclusively by 16S or COI markers from the trap samples (i.e. bulk tissue or preservative fluid), or detected by both markers
| Level | Without correction | With correction | ||||
|---|---|---|---|---|---|---|
| 16S | COI | Common | 16S | COI | Common | |
| Species | 84 | 136 | 29 | 59 | 14 | 29 |
| Genus | 53 | 131 | 49 | 53 | 33 | 49 |
| Family | 10 | 35 | 54 | 10 | 23 | 54 |
| Order | 3 | 5 | 11 | 3 | 5 | 11 |
The correction refers to eliminating from the reference database of one marker those taxa that were not present in the database of the other marker, with the intent of making detection failures comparable. From this table, we have explicitly excluded the soil samples, which were completely dominated by nontarget DNA amplified by COI (see Figure S2).