Table 4.
Results of GLMMs fitted to the numbers of Varroa mites per approx. 500 bees as well as of a logistical model applied to the presence/absence data of Nosema, DWV, SBV, and ABPV
Varroa infestation level as determined by the icing sugar method | Nosema | DWV | SBV | ABPV | |
---|---|---|---|---|---|
Intercept | 3.48 ± 0.09*** | −3.90 ± 1.00*** | −3.21 ± 2.59 | −45.06 ± 13,448.37 | −7.71 ± 7.84 |
DAP | 4.04 ± 3.53 | −8.01 ± 10.86 | 0.02 ± 0.05 | −6.52 ± 3,544.90 | 34.75 ± 42.91 |
Study site (test compared to reference) | 0.03 ± 0.11 | −1.45 ± 0.95 | 0.12 ± 0.39 | 11.43 ± 9,508.04 | 0.23 ± 0.48 |
Distance to OSR (distant compared to edge) | −0.02 ± 0.11 | 1.64 ± 1.04 | 0.41 ± 0.39 | −19.56 ± 8,816.63 | −0.44 ± 0.48 |
Temperature sum | −2.37 ± 2.13 | 10.62 ± 8.03 | −0.19 ± 102.63 | −14.00 ± 24.92 | |
Humidity sum | −1.61 ± 1.52 | 0.10 ± 38.56 | −12.20 ± 18.53 | ||
Rain sum | 0.47 ± 0.26 | −1.91 ± 5.74 | 0.69 ± 1.99 | 0.50 ± 297.64 | −2.00 ± 2.16 |
Wind sum | 0.22 ± 0.19 | −0.95 ± 3.08 | −0.40 ± 1.07 | 0.56 ± 314.03 | −1.85 ± 1.38 |
Effect size ± SD is given for each parameter. Positive values indicate an increase in relation to the respective reference value whereas negative values indicate a decrease. All other parameters are as explained in the legend of Table 1. ***p < 0.001