Table 1.
Monitored sites (caves).
| Site | Lat | Long | Elevation | ES | Surveys | Salamander depth | Empty stomach | Residual Index | Estimated population size | Estimated density |
|---|---|---|---|---|---|---|---|---|---|---|
| Site 1 | 40.49 | 9.59 | 267 | 0.431 | 9 | 41.75 ± 6.14 | 8/24 | (51) −0.140 ± 0.02 | 10.06 (8–13) | 0.008 |
| Site 2 | 40.51 | 9.61 | 116 | 0.470 | 7 | 7.75 ± 1.75 | — | (10) −0.030 ± 0.04 | — | — |
| Site 3 | 40.51 | 9.61 | 116 | 0.470 | 7 | 10.3 ± 0.46 | — | (5) −0.149 ± 0.06 | 6.96 (5–9) | 0.051 |
| Site 4 | 40.56 | 9.64 | 777 | 0.701 | 5 | 3 ± 0.29 | — | (3) 0.241 ± 0.06 | 5.50 (4–8) | 0.231 |
| Site 5 | 40.46 | 9.52 | 1029 | 0.647 | 10 | 12.36 ± 0.58 | 15/166 | (158) −0.001 ± 0.01 | 103.59 (98–109) | 0.077 |
| Site 6 | 40.51 | 9.61 | 107 | 0.343 | 6 | — | (1) −0.075 | — | — | |
| Site 7 | 40.47 | 9.53 | 679 | 0.531 | 5 | 8.5 ± 3.32 | 0/22 | (29)−0.010 ± 0.03 | 9.7 (8–12) | 0.031 |
| Site 8 | 40.54 | 9.65 | 265 | 0.476 | 5 | 14.9 ± 0.94 | — | — | 5.69 (5–8) | 0.006 |
| Site 9 | 40.58 | 9.68 | 94 | 0.425 | 16 | 19.71 ± 2.33 | — | (6) −0.027 ± 0.05 | 9.69 (7–13) | 0.014 |
| Site 10 | 40.56 | 9.68 | 116 | 0.420 | 1 | — | (6) 0.040 ± 0.03 | — | — | |
| Site 11 | 40.57 | 9.64 | 954 | 0.726 | 1 | — | (21) 0.060 ± 0.05 | — | — | |
| Site 12 | 40.55 | 9.62 | 902 | 0.786 | 1 | — | (23) 0.180 ± 0.04 | — | — | |
| Site 13 | 40.58 | 9.69 | 50 | 0.339 | 1 | 148.27 ± 1.72 | — | — | — | — |
| Site 14 | 40.49 | 9.58 | 349 | 0.431 | 1 | 21.43 ± 2.76 | — | — | — | — |
For each site we report: geographic coordinates; elevation (m a.s.l.); environmental suitability (ES); total number of performed surveys; average depth of observed salamanders (± SE); number of empty and sampled stomachs; body condition index (residual index ± SE; in parenthesis the N of salamanders); estimated population size (mean and 95% CI); estimated density (salamanders/m2).