Table 2
Effects of different input data on the STAR_ICMi index. Observed is the index score counting all the individuals; CI = confidence interval, the precision calculated using bootstrap. Estimate is the index score when the abundance of the most abundant taxa was estimated; rank, class and presence is the index score when the real input data were reduced to rank, classes and presence respectively.
| River | Observed | CI | Estimate | Rank | Class | Presence |
|---|---|---|---|---|---|---|
| Arnò high | 0.826 | 0.775–0.865 | 0.895 | 0.986 | 0.851 | 0.873 |
| Arnò low | 0.767 | 0.746–0.774 | 0.783 | 0.749 | 0.675 | 0.675 |
| Aurino | 0.804 | 0.787–0.823 | 0.822 | 0.840 | 0.741 | 0.742 |
| Barnes | 0.557 | 0.477–0.584 | 0.584 | 0.621 | 0.551 | 0.574 |
| Fleres | 1.100 | 1.046–1.119 | 1.068 | 1.061 | 0.945 | 0.928 |
| Manez | 0.628 | 0.585–0.656 | 0.640 | 0.658 | 0.574 | 0.583 |
| Pescara | 0.724 | 0.699–0.747 | 0.730 | 0.769 | 0.681 | 0.681 |
| Selva | 1.012 | 0.960–1.053 | 0.993 | 0.943 | 0.841 | 0.830 |
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