Table 2 Summary of grain particle sizes of Podocnemis unifilis nests.
From: Substrate influences human removal of freshwater turtle nests in the eastern Brazilian Amazon
Substrate grain type | River segment | Overall | |
|---|---|---|---|
Araguari | Falsino | ||
Gravel (> 2 mm) | 13.76 ± 18.52 (0 – 73.13) | 8.86 ± 18.48 (0 – 93.26) | 11.61 ± 18.66 (0 – 93.26) |
Very Coarse sand (1–2 mm) | 11.89 ± 12.18 (0 – 53.37) | 12.05 ± 16.51 (0.01 – 66.08) | 11.96 ± 14.25 (0 – 66.08) |
Coarse sand (0.5–1 mm) | 17.37 ± 19.44 (0.05 – 74.36) | 22.72 ± 20.53 (0.09 – 72.06) | 19.72 ± 20.10 (0.05 – 74.36) |
Medium sand (0.25–0.5 mm) | 22.79 ± 17.33 (1.73 – 77.20) | 31.71 ± 21.26 (0.70 – 75.49) | 26.71 ± 19.66 (0.70 – 77.20) |
Fine sand (0.125–0.25 mm) | 27.53 ± 23.72 (0.13 – 75.70) | 20.62 ± 21.30 (0.31 – 71.50) | 24.49 ± 22.95 (0.13 – 75.70) |
Very fine sand (0.063–0.25 mm) | 6.37 ± 8.22 (0.04 – 31.49) | 3.87 ± 4.94 (0.08 – 20.55) | 5.27 ± 7.08 (0.04 – 31.49) |
Coarse silt (<0.063 mm) | 0.30 ± 0.35 (0.01 – 1.55) | 0.17 ± 0.18 (0.01 – 0.86) | 0.24 ± 0.30 (0.01 – 1.55) |
