Table 2.
Comparison of generalized linear mixed-effects models (GLMM) using a model selection approach
| Response variable | Explanatory variables | ||||||
|---|---|---|---|---|---|---|---|
| Model description | k | AICc | ΔAICc | wi | Variance (fixed effects) | Variance (random effect) | |
| a) Haemosporidian parasitemia | Primary 3 asymmetry + Tarsus asymmetry | 5 | 588.65 | 0.00 | 0.92 | 0.012 | 0.255 |
| Primary 3 asymmetry + Tarsus asymmetry + Vector abundance (females) | 6 | 593.99 | 5.34 | 0.06 | 0.015 | 0.250 | |
| Primary 3 asymmetry + Tarsus asymmetry + Vector abundance (females) + H/L-ratio | 7 | 596.56 | 7.91 | 0.02 | 0.018 | 0.243 | |
| Primary 3 asymmetry + Tarsus asymmetry + Vector abundance (females) + H/L-ratio + Forest category | 9 | 603.10 | 14.45 | 0.00 | 0.028 | 0.242 | |
| Primary 3 asymmetry + Tarsus asymmetry + Vector abundance (females) + H/L-ratio + Forest category + Year | 10 | 608.04 | 19.39 | 0.00 | 0.028 | 0.242 | |
| Primary 3 asymmetry + Tarsus asymmetry + Vector abundance (females) + H/L-ratio + Forest category + Year + Leucocyte | 11 | 613.57 | 24.93 | 0.00 | 0.028 | 0.245 | |
| Primary 3 asymmetry | 4 | 645.56 | 56.91 | 0.00 | 0.001 | 0.259 | |
| Tarsus assymmetry | 4 | 657.22 | 68.58 | 0.00 | 0.009 | 0.261 | |
| Null | 3 | 723.35 | 134.70 | 0.00 | 0.000 | 0.270 | |
| b) Haemosporidian prevalence | Primary 3 asymmetry + Tarsus asymmetry | 4 | 273.99 | 0.00 | 0.70 | 0.010 | 0.182 |
| Primary 3 asymmetry + Tarsus asymmetry + Forest category | 6 | 276.58 | 2.59 | 0.19 | 0.015 | 0.183 | |
| Primary 3 asymmetry + Tarsus asymmetry + Forest category + Leucocytes | 7 | 278.64 | 4.65 | 0.07 | 0.015 | 0.182 | |
| Primary 3 asymmetry + Tarsus asymmetry + Forest category + Leucocytes + Vector abundance (females) | 8 | 280.71 | 6.72 | 0.02 | 0.016 | 0.182 | |
| Primary 3 asymmetry + Tarsus asymmetry + Forest category + Leucocytes + Vector abundance (females) + H/L-ratio | 9 | 282.81 | 8.81 | 0.01 | 0.016 | 0.181 | |
| Primary 3 asymmetry | 3 | 293.59 | 19.60 | 0.00 | 0.000 | 0.176 | |
| Tarsus asymmetry | 3 | 299.53 | 25.53 | 0.00 | 0.013 | 0.189 | |
| Tarsus asymmetry + Forest category + Leucocytes + Vector abundance (females) + H/L-ratio | 8 | 307.70 | 33.71 | 0.00 | 0.021 | 0.193 | |
| Null | 2 | 323.55 | 49.56 | 0.00 | 0.000 | na | |
Comparison of generalized linear mixed-effects models (GLMM) relating to habitat category, physical traits, prevalence and parasitemia of all haemosporidians, from birds sampled at Schorfheide, Germany in 2014 and 2015. The factor bird species was used as a random factor