Table 1. Effects of life stage and temperature on jump performance of Locusta migratoria.
Life stage | Body mass (g) | Jump distance (m) | Take-off angle (degrees) | Jump energy (mJ per jump) | |
15°C | First | 0.021±0.006 | 0.17±0.03 | 45±6 | 0.019±0.007 |
Second | 0.051±0.019 | 0.16±0.05 | 44±9 | 0.047±0.024 | |
Third | 0.078±0.008 | 0.20±0.02 | 47±5 | 0.081±0.009 | |
Fourth | 0.23±0.04 | 0.22±0.03 | 45±7 | 0.26±0.03 | |
Fifth | 0.61±0.11 | 0.31±0.04 | 47±9 | 1.03±0.21 | |
Adult | 1.12±0.26 | 0.56±0.10 | 41±3 | 3.40±0.99 | |
25°C | First | 0.016±0.003 | 0.18±0.04 | 49±9 | 0.016±0.005 |
Second | 0.061±0.016 | 0.17±0.02 | 55±8 | 0.057±0.012 | |
Third | 0.103±0.026 | 0.19±0.03 | 49±6 | 0.104±0.030 | |
Fourth | 0.13±0.01 | 0.22±0.02 | 52±5 | 0.16±0.02 | |
Fifth | 0.48±0.10 | 0.30±0.05 | 55±9 | 0.86±0.29 | |
Adult | 0.90±0.17 | 0.48±0.05 | 42±3 | 2.31±0.58 | |
35°C | First | 0.018±0.003 | 0.20±0.06 | 55±10 | 0.023±0.007 |
Second | 0.030±0.006 | 0.20±0.02 | 55±8 | 0.035±0.009 | |
Third | 0.067±0.031 | 0.19±0.05 | 56±10 | 0.082±0.050 | |
Fourth | 0.20±0.07 | 0.27±0.04 | 48±9 | 0.29±0.08 | |
Fifth | 0.52±0.25 | 0.34±0.05 | 57±4 | 1.02±0.52 | |
Adult | 1.06±0.26 | 0.70±0.08 | 49±3 | 3.75±0.88 |
Data are means ±95% CI calculated from six individuals for each of the five juvenile life stages, and from 12 individuals for the adult life stage. N = 30 juvenile and 12 adult individuals per temperature. N = 126 individuals in total.