Research Article

Entomological Investigations on Malaria Vectors in Some War-Torn Areas in the Trincomalee District of Sri Lanka after Settlement of 30-Year Civil Disturbance

Table 5

Correlation between anopheline densities climate variables.

Lag period (Months)Pearson correlation coefficient ( value) between vector densities and climatic factors
RainfallTemperatureHumidity
All AnophelineA. culicifacies A. subpictus All AnophelineA. culicifacies A. subpictus All AnophelineA. culicifacies A. subpictus

Hand collection
0−0.248 (0.232)−0.001 (0.996)−0.268 (0.195)0.279 (0.177)−0.332 (0.105)0.279 (0.177)−0.267 (0.197)−0.267 (0.197)0.129 (0.538)
10.087 (0.685)0.252 (0.235)0.052 (0.811)−0.064 (0.767)−0.290 (0.168)−0.045 (0.836)0.236 (0.267)0.210 (0.325)0.298 (0.157)
2−0.007 (0.973)0.394 (0.063)−0.030 (0.893)−0.216 (0.323)−0.195 (0.373)−0.206 (0.345)0.319 (0.137)0.300 (0.165)0.345 (0.107)

Window trap
00.315 (0.126)0.358 (0.079)0.297 (0.149)−0.269 (0.194)−0.128 (0.542)−0.205 (0.326)0.236 (0.255)0.200 (0.338)0.242 (0.245)
10.402 (0.052)−0.150 (0.484)0.347 (0.097)−0.344 (0.099)0.196 (0.357)−0.244 (0.251)0.455 (0.026)0.399 (0.054)−0.226 (0.289)
20.206 (0.346)−0.124 (0.572)0.089 (0.685)−0.317 (0.141)0.181 (0.408)−0.210 (0.337)0.487 (0.019)0.389 (0.067)−0.233 (0.284)

Cattle-baited trap
00.118 (0.575)0.066 (0.754)0.310 (0.132)−0.257 (0.214)−0.415 (0.039)−0.278 (0.178)0.212 (0.308)0.220 (0.290)0.252 (0.224)
1−0.087 (0.686)0.230 (0.280)−0.034 (0.875)−0.375 (0.071)−0.403 (0.051)−0.292 (0.166)0.272 (0.199)0.231 (0.277)0.340 (0.104)
20.225 (0.303)0.362 (0.090)0.098 (0.658)−0.43 (0.037)−0.252 (0.245)−0.246 (0.258)0.368 (0.084)0.211 (0.334)0.314 (0.145)

Cattle-baited net
0−0.134 (0.524)0.187 (0.370)0.156 (0.457)−0.217 (0.296)−0.266 (0.199)−0.034 (0.872)0.092 (0.661)0.203 (0.331)0.214 (0.304)
10.232 (0.275)0.246 (0.247)0.290 (0.169)−0.282 (0.181)−0.178 (0.405)−0.262 (0.216)0.239 (0.260)0.499 (0.013)0.269 (0.204)
20.598 (0.003)0.329 (0.125)0.287 (0.185)−0.433 (0.039)−0.080 (0.716)−0.415 (0.049)0.539 (0.008)0.460 (0.027)0.204 (0.350)

Larval collection
0−0.248 (0.232)−0.001 (0.996)−0.268 (0.195)0.279 (0.177)−0.332 (0.105)0.279 (0.177)−0.267 (0.197)−0.267 (0.197)0.129 (0.538)
10.087 (0.685)0.252 (0.235)0.052 (0.811)−0.064 (0.767)−0.29 (0.168)−0.045 (0.836)0.236 (0.267)0.210 (0.325)0.298 (0.157)
2−0.007 (0.973)0.394 (0.063)−0.030 (0.893)−0.216 (0.323)−0.195 (0.373)−0.206 (0.345)0.319 (0.137)0.300 (0.165)0.345 (0.107)

values in parentheses.