Table 2.
Probabilities of ancestral states from multiple phylogenetic reconstructions of nest characteristics. All ancestral state reconstructions were performed on three phylogenies [31–33] and using three different reconstruction models (unordered parsimony, Mk1 maximum-likelihood, and AssymMk2 maximum-likelihood), which in turn were run multiple times with variable character states favouring each possible state, resulting in a range of probability values.
| model | shape |
location |
exposure |
||||||
|---|---|---|---|---|---|---|---|---|---|
| cup | dome | cavity | vegetation | ground | cliff | open | enclosed | ||
| Australian species | parsimony | 0.00 | 1.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 1.00 |
| Mk1 | 0.03–0.05 | 0.95–0.97a | 0.0–0.01 | 0.97–0.99a | 0.0–0.01 | 0.0–0.01 | 0.0–0.01 | 0.99–1.00a | |
| AssymMk2 | 0.01–0.02 | 0.98–0.99a | — | — | — | — | 0.0–0.01 | 0.99–1.00a | |
| world families | parsimony | 0.00 | 1.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 1.00 |
| Mk1 | 0.19–0.31 | 0.69–0.81 | 0.04–0.09 | 0.88–0.95a | 0.01–0.02 | 0.01–0.02 | 0.08–0.27 | 0.73–0.92a | |
| AssymMk2 | 0.03–0.09 | 0.91–0.97a | — | — | — | — | 0.01–0.26 | 0.74–0.99a | |
aAncestral states strongly supported by a likelihood decision threshold of 2.0.