Table 1.
Results of Kruskal Wallis analyses of island age over genetic diversity for three datasets: whole archipelago, M. hyssopifolia and taxa belonging to the M. varia complex; and taxa belonging to the western lineage (Tenerife, La Palma and El Hierro and M. pedro-luisii from La Gomera)
| Dataset | Level | Test | HO | HE | Ar | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DF | Chi2 | P-value | DF | Chi2 | P-value | DF | Chi2 | P-value | |||
| All samples | Populations | Islands | 6 | 50.5 | <.0001 | 6 | 65.81 | <.0001 | 6 | 24.89 | 0.0003 |
| Species | 21 | 71.51 | <.0001 | 21 | 84.66 | <.0001 | 21 | 53.33 | 0.0001 | ||
| old/new | 1 | 24.19 | <.0001 | 1 | 30.96 | <.0001 | 1 | 10.35 | 0.001 | ||
| Species | Islands | 6 | 14.27 | 0.02 | 6 | 12.69 | 0.04 | 6 | 6.28 | 0 | |
| old/new | 1 | 7.36 | 0.006 | 1 | 4.62 | 0.03 | 1 | 0.15 | 0.69 | ||
| M. varia and M. hyssopifolia | Populations | Islands | 4 | 29.48 | <.0001 | 4 | 43.02 | <.0001 | 4 | 16.71 | 0.002 |
| Species | 7 | 33.81 | <.0001 | 7 | 46.05 | <.0001 | 7 | 18 | 0.01 | ||
| old/new | 1 | 20.59 | <.0001 | 1 | 33.73 | <.0001 | 1 | 0.05 | 0.8 | ||
| Species | old/new | 1 | 4.08 | 0.04 | 1 | 4.08 | 0.04 | 1 | 2.08 | 0.1 | |
| Within West | Populations | Islands | 5 | 31.43 | <.0001 | 5 | 40.04 | <.0001 | 5 | 14.22 | 0.01 |
| Species | 11 | 33.08 | <.0005 | 11 | 46.16 | <.0001 | 11 | 22.35 | 0.02 | ||
| old/new | 1 | 6.57 | 0.01 | 1 | 13.86 | 0.0001 | 1 | 1.49 | 0.2 | ||
| Species | Islands | 4 | 9.19 | 0.06 | 4 | 9.18 | 0.05 | 4 | 0.98 | 0.9 | |
| old/new | 1 | 4.81 | 0.02 | 1 | 3.49 | 0.06 | 1 | 0.006 | 0.9 | ||
Significance was adjusted to α ≤ 0.003 by the Sidak method due to an increased number of tests per response