Table 2 Mean (SD) of parameters measured or calculated on webs built by the spiders reared in frames
Parameters | Mean (SD) | t test ( p) | |
|---|---|---|---|
Test 1 | Test 2 | ||
Length of the spiral thread (cm) | 492 (40) | 358 (32) | 5.05 (<0.001) |
Surface of the capture area (cm2) | 132 (12) | 86 (12) | 6.58 (<0.001) |
Asymmetry | 0.29 (0.02) | 0.19 (0.02) | 3.30 (0.004) |
Number of radii | 25 (1) | 22 (1) | 3.29 (0.004) |
Length of the lower part (cm) | 8.4 (0.5) | 5.7 (0.4) | 6.24 (<0.001) |
Number of spiral turns | 30 (2) | 25 (2) | 2.08 (0.049) |
Mesh height (mm) | 2.6 (0.1) | 2.3 (0.2) | 1.43 (0.165) |
Anomaly ratio (A/CTL) | 8 (0) | 12 (1) | 3.39 (0.002) |