Table 3.
(a) Linear mixed‐effects model of mean retention time, giving partial effects of seed traits. The effect of random terms (marked in italics) was assessed using likelihood‐ratio statistics. (b) A similar model run using MCMCglmm and including phylogenetic relatedness.
| (a) | β (SE) | χ2 | df | p |
|---|---|---|---|---|
| log(wet load) | 0.18 (0.06) | 7.95 | 1 | .0048 |
| log(thousand seed mass) | −0.07 (0.05) | 2.22 | 1 | .1359 |
| log(ratio water permeability) | 0.39 (0.44) | 0.79 | 1 | .3754 |
| log(shape dry) | 0.03 (0.08) | 0.13 | 1 | .7139 |
| Duck ID | 27.74 | 1 | <.0001 | |
| Experiment | 0 | 1 | 1 | |
| Plant species | 0 | 1 | 1 |
| (b) | post.mean | LCI | UCI | eff.samp | pMCMC |
|---|---|---|---|---|---|
| (Intercept) | 1.74 | 1.15 | 2.25 | 990 | <0.001 |
| log(wet load) | 0.18 | 0.07 | 0.28 | 990 | <0.001 |
| log(thousand seed mass) | −0.08 | −0.17 | 0.01 | 990 | 0.0889 |
| log(ratio water permeability) | 0.39 | −0.32 | 1.29 | 990 | 0.3111 |
| log(shape dry) | 0.03 | −0.13 | 0.18 | 990 | 0.6141 |