Table 1. Alternative models for Batrachochytrium dendrobatidis infection loads (in logarithm) in six different sites.
AICc | Wi | Wt / W | model R2 | Min T | Max T | abund | develop | %var sites | |
---|---|---|---|---|---|---|---|---|---|
with temperature-2 days | 181.82 | 0.444 | 264284 | 0.523 | -0.780 | 0.082 | -0.013 | -0.037 | 0.053 |
with temperature-5 days | 182.08 | 0.389 | 231832 | 0.522 | -0.622 | -0.079 | -0.009 | -0.039 | 0.052 |
with temperature-10 days | 184.25 | 0.131 | 78112 | 0.506 | -0.392 | -0.289 | -0.024 | -0.029 | 0.050 |
with temperature-15 days | 187.54 | 0.025 | 15085 | 0.480 | -0.281 | -0.378 | -0.024 | -0.024 | 0.050 |
with temperature-22 days | 189.85 | 0.008 | 4766 | 0.462 | -0.106 | -0.529 | -0.029 | -0.006 | 0.049 |
with temperature-30 days | 192.50 | 0.002 | 1268 | 0.440 | -0.067 | -0.546 | -0.024 | 0.020 | 0.048 |
without temperature | 206.79 | 0.000 | 0.242 | -0.451 | 0.087 | 0.038 | |||
weighted averages | 0.519 | -0.648 | -0.047 | -0.013 | -0.036 | 0.052 |
The first six models include the average minimum and maximum water temperature (T) in six different time spans prior to tadpole sampling (i.e., two, five, ten, 15, 22 and 30 days), taking into account other three predictor terms: tadpole abundance (abund), tadpole development (develop) and site. Sample size is 66 (six sites x 11 months). AICc: AIC corrected for small sample sizes. Wi: model weights. Wt / W: quotient of strength of evidence dividing the weight (Wt) each model containing both maximum and minimum temperatures with the model without temperatures (W). Figures below Min T, Max T, tadpole abundance and development are standardized regression coefficients (β) obtained in mixed general linear models (β values inform about the magnitude and sign of the partial relationships of the predictor variables). Weighted averages: multimodel inference of standardized β regression coefficients considering the model weights Wi. The AICc figure for the null model (i.e., not including any effect) is 208.04.