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Table 5 Associations between the proportional frequencies of the immatures of the M and S forms among sampling sites within a habitat, or among larval breeding habitats as influenced by each physicochemical property of water during a category of rainfall in Banambani

From: Water quality and immatures of the M and S forms of Anopheles gambiae s.s. and An. arabiensis in a Malian village

Source df Young Old Total
  χ 2 P χ 2 P χ 2 P
Alkalinity 1 3.34 0.068 0.22 0.636 2.64 0.104
Habitat 2 4.59 0.101 2.39 0.303 4.39 0.111
Site within a habitat 2 6.52 0.038* 5.61 0.060 3.50 0.174
Category of rainfall 2 4.38 0.112 2.73 0.255 4.43 0.109
Conductivity 1 1.59 0.208 0.60 0.438 0.06 0.812
Habitat 2 3.20 0.202 2.82 0.244 3.55 0.169
Site within a habitat 2 6.51 0.039* 5.29 0.071 1.35 0.508
Category of rainfall 2 3.01 0.222 2.47 0.291 3.79 0.812
Dissolved oxygen 1 0.59 0.443 0.03 0.872 0.85 0.357
Habitat 2 5.02 0.081 2.14 0.343 5.28 0.072
Site within a habitat 2 6.31 0.043* 5.69 0.058 1.79 0.409
Category of rainfall 2 3.45 0.179 2.54 0.280 3.97 0.137
Nitrate 1 1.05 0.305 0.56 0.455 0.01 0.906
Habitat 2 5.48 0.065 2.44 0.295 5.02 0.081
Site within a habitat 2 5.77 0.056 5.28 0.071 1.22 0.543
Category of rainfall 2 5.28 0.071 2.23 0.327 3.77 0.152
Orthophosphate 1 - - 0.26 0.610 - -
Habitat 2    2.32 0.314   
Site within a habitat 2    5.05 0.080   
Category of rainfall 2    2.58 0.275   
pH 1 0.73 0.393 1.14 0.285 1.68 0.195
Habitat 2 4.27 0.118 1.31 0.521 4.08 0.130
Site within a habitat 2 5.71 0.058 6.23 0.044* 0.88 0.645
Category of rainfall 2 5.28 0.203 2.21 0.332 3.14 0.209
Temperature 1 0.01 0.934 1.64 0.201 1.78 0.182
Habitat 2 4.75 0.093 2.85 0.241 5.54 0.063
Site within a habitat 2 6.39 0.041* 5.69 0.058 1.37 0.505
Category of rainfall 2 3.45 0.179 2.91 0.234 2.81 0.245
TDS 1 1.85 0.174 0.66 0.416 0.01 0.927
Habitat 2 3.18 0.204 2.88 0.237 4.01 0.135
Site within a habitat 2 6.65 0.036* 5.27 0.072 1.28 0.526
Category of rainfall 2 2.89 0.236 2.47 0.290 3.75 0.153
Turbidity 1 0.04 0.846 2.27 0.132 0.08 0.781
Habitat 2 4.79 0.091 2.10 0.350 5.12 0.077
Site within a habitat 2 5.76 0.056 0.26 0.878 1.07 0.586
Category of rainfall 2 3.58 0.167 1.61 0.448 2.90 0.235
  1. * P < 0.05, "-" Not applicable