Table 3.
Two-group comparisons and overall trend of the effect of increasing larval environmental temperature on the mean number of eggs laid by adult Anopheles gambiae s.s. females (reared from these larvae) kept at all adult temperatures. No mosquitoes held at 31 °C survived long enough to blood feed for a third time
| Adult temperature (°C) | Larval temperature (°C) | |||||
|---|---|---|---|---|---|---|
| 23 ± 1 | 27 ± 1 (with respect to 23 °C) | 31 ± 1 (with respect to 23 °C) | 31 ± 1 (with respect to 27 °C) | |||
| 1st blood meal | Mean n° of eggs (±SD) | 53.11 (2.66) | 41.39 (2.98) | 22.31 (5.79) | 22.31 (5.79) | |
| 23 ± 1 | Test statistic (p-value) | 2.941 (p < 0.05) | 5.501 (p < 0.01) | 3.212 (p < 0.05) | ||
| 27 ± 1 | Mean n° of eggs (±SD) | 48.67 (2.86) | 52.77 (4.09) | 48.35 (5.14) | ||
| Test statistic (p-value) | −0.846 (0.4) | 0.057 (0.95) | 0.662 (0.51) | |||
| 31 ± 1 | Mean n° of eggs (±SD) | 39.00 (3.9) | 23.17 (2.77) | 14.29 (3.38) | ||
| Test statistic (p-value) | 3.337 (p < 0.01) | 4.719 (p < 0.001) | 1.899 (0.064) | |||
| 2nd blood meal | Mean n° of eggs (±SD) | 57.53 (3.23) | 38.6 (3.55) | 30.71 (2.21) | ||
| 23 ± 1 | Test statistic (p-value) | 3.929 (p < 0.001) | 3.803 (p < 0.001) | 1.146 (0.261) | ||
| 27 ± 1 | Mean n° of eggs (±SD) | 46.57 (5.57) | 57.96 (4.60) | 28.17 (8.05) | 28.17 (8.05) | |
| Test statistic (p-value) | −1.584 (0.12) | 1.907 (0.065) | 3.455 (p < 0.01) | |||
| 31 ± 1 | Mean n° of eggs (±SD) | 29.75 (4.23) | 13.73 (4.19) | 22.00 (5.71) | ||
| Test statistic (p-value) | 1.88 (0.077) | 0.932 (0.376) | −1.136 (0.269) | |||
| 3rd blood meal | Mean n° of eggs (±SD) | 50.54 (2.47) | 44.6 (2.58) | 36.00 (3.96) | ||
| 23 ± 1 | Test statistic (p-value) | 1.657 (0.1) | 2.535 (p < 0.05) | 1.548 (0.135) | ||
| 27 ± 1 | Mean n° of eggs (±SD) | 54.18 (7.08) | 47.20 (6.60) | 50.75 (28.21) | ||
| Test statistic (p-value) | 0.76 (0.457) | 0.173 (0.866) | −0.186 (0.855) | |||