Table 2. Multivariate partial least squares regression analysis of log transformed tsetse fly catches using calculated photoreceptor excitations as predictors.
Species | G. f. fuscipes | G. p. palpalis | G. p. palpalis | G. pallidipes | |||||
Bait | Targets | Screens | Biconical traps | F2 traps | |||||
Sex | M. | F. | M. | F. | M. | F. | M. | F. | |
R1-6 | C. | −0.006 | −0.003 | −0.112 | −0.019 | +0.186 | +0.197 | −1.063 | −1.183 |
S. | −0.0095 | −0.0065 | −0.1785 | −0.0435 | +0.1105 | +0.1075 | −0.3893 | −0.4143 | |
R7p | C. | −0.414 | −0.594 | −0.319 | −0.361 | −1.244 | −1.404 | −2.255 | −1.797 |
S. | −0.4211 | −0.7001 | −0.3973 | −0.6643 | −0.5874 | −0.6114 | −0.3814 | −0.2915 | |
R7y | C. | +0.166 | +0.232 | +0.404 | +0.355 | +1.485 | +1.651 | +4.240 | +4.362 |
S. | +0.2063 | +0.3343 | +0.5832 | +0.7572 | +0.8402 | +0.8612 | +1.1941 | +1.1741 | |
R8p | C. | +0.118 | +0.171 | +0.121 | +0.187 | +1.280 | +1.421 | +0.881 | +0.852 |
S. | +0.1864 | +0.3124 | +0.1974 | +0.4504 | +0.7983 | +0.8183 | +0.3295 | +0.3044 | |
R8y | C. | −0.238 | −0.329 | −0.457 | −0.355 | −1.808 | −2.034 | −2.636 | −2.855 |
S. | −0.3882 | −0.6222 | −0.7511 | −0.8631 | −1.0801 | −1.1211 | −1.0562 | −1.0932 | |
constant | C. | +1.956 | +1.997 | +1.951 | +1.840 | +1.456 | +1.315 | +1.795 | +1.654 |
S. | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | |
LFs | 3 | 3 | 2 | 3* | |||||
r2 | 0.207 | 0.541 | 0.422 | 0.435 | 0.794 | 0.836 | 0.817 | 0.858 | |
pred. r2 | 0.015 | 0.381 | 0.174 | 0.194 | 0.727 | 0.771 | 0.754 | 0.809 |
Raw data from [5], [7], [11]. M. = male; F. = female; C. = coefficient; S. = standardised coefficient; LFs = latent factors; pred. r2 = predicted r2. The superscript following each standardised coefficient indicates its rank order of relative magnitude within each analysis.
* An initial model with 4 latent factors had a marginally improved fit, but the model selection plot indicated over-fitting. The parameters of this more complex model were: R1-6: −2.185 (−0.800), −2.437 (−0.852); R7p: −2.333 (−0.395), −1.884 (−0.305); R7y: +5.704 (+1.606), +5.997 (+1.614); R8p: −0.058 (−0.022), −0.199 (−0.071); R8y: −1.592 (−0.638), −1.688 (−0.646).