Table 1 Kinematic variables and series of Mann-Whitney-U tests comparing paedomorphic and metamorphic Alpine newts. Significance level was adjusted to p ≤ 0.0046 after simultaneous Bonferroni correction
From: Same but different: aquatic prey capture in paedomorphic and metamorphic Alpine newts
Variable | Paedomorphs | Metamorphs | Mann-Whitney-U | P-Value |
|---|---|---|---|---|
Duration gape opening (ms) | 22 ± 5.55 | 30.89 ± 6.44 | 98.5 | <0.001 |
Duration gape closing (ms) | 31.09 ± 7.35 | 25.5 ± 3.21 | 187 | 0.003 |
Duration gape cycle (ms) | 53.09 ± 10.51 | 56.19 ± 7.15 | 298.5 | 0.344 |
Maximum gape (mm) | 2.94 ± 1.3 | 3.87 ± 0.93 | 197 | 0.006 |
Time to start hyobranchial depression (ms) | 1 ± 2.02 | 4.56 ± 6.41 | 230.5 | 0.015 |
Duration hyobranchial depression (ms) | 38 ± 9.82 | 41.6 ± 10.61 | 284 | 0.23 |
Maximum hyobranchial depression (mm) | 1.85 ± 0.47 | 3.01 ± 0.56 | 29 | <0.001 |
Duration head elevation (ms) | 27.82 ± 9.44 | 31.81 ± 4.75 | 198.5 | 0.006 |
Maximum head elevation (deg) | 16.58 ± 4.84 | 18.6 ± 4.8 | 278 | 0.193 |
Lateral head expansion (mm) | 0.62 ± 0.16 | 1.18 ± 0.39 | 50 | <0.001 |
Maximum prey velocity (ms−1) | 0.47 ± 0.18 | 0.49 ± 0.25 | 347 | 0.93 |