Table 1.
Effects of marker size, mosquito sex, number of swarming mosquitoes and number of released mosquitoes on swarm characteristics in An. coluzzii in laboratory setups (design 2)
| Marker sizea | Mosquito sex | No. of swarming mosquitoes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 cm | 60 cm | χ2 | df | P-value | Males | Females | χ2 | df | P-value | χ2 | df | P-value | |
| Swarm dimensions (± SE) (cm) | |||||||||||||
| Maximal | 73.0 ± 1.1 | 139.0 ± 1.3 | 168.90 | 1 | < 0.001 | 110.9 ± 7.0 | 101.0 ± 6.8 | 0.48 | 1 | 0.484 | 11.87 | 1 | < 0.001 |
| Nucleus | 53.2 ± 0.9 | 106.8 ± 1.2 | 134.30 | 1 | < 0.001 | 84.0 ± 5.8 | 76.0 ± 5.5 | 0.0003 | 1 | 0.980 | 2.09 | 1 | 0.147 |
| Minimal | 31.1 ± 0.9 | 64.3 ± 0.9 | 360.80 | 1 | < 0.001 | 50.7 ± 3.5 | 44.7 ± 3.5 | 2.99 | 1 | 0.083 | 35.89 | 1 | < 0.001 |
| Amplitude | 41.9 ± 0.9 | 74.7 ± 1.0 | 74.06 | 1 | < 0.001 | 60.2 ± 3.7 | 56.4 ± 3.4 | 2.59 | 1 | 0.107 | 4.97 | 1 | 0.025 |
| Width | 32.0 ± 0.8 | 52.1 ± 1.8 | 51.38 | 1 | < 0.001 | 47.4 ± 2.7 | 36.7 ± 1.7 | 6.01 | 1 | 0.014 | 9.07 | 1 | 0.002 |
| Swarm sizeb (± SE) | |||||||||||||
| No. of swarming mosquitoes | 19.2 ± 1.9 | 44.9 ± 6.1 | 10.65 | 1 | 0.001 | 50.5 ± 5.1 | 13.7 ± 0.6 | 76.73 | 1 | < 0.001 | na | na | na |
aAn. coluzzii mosquitoes swarmed only in presence of a marker
bSwarm size expressed as the number of swarming mosquitoes
Abbreviations: SE, standard error; na, not included in the analyses
Note: Significant P-values are in bold