Ecological parameters scores for lichens present in the island biota (left columns) and those known only from the continent (right columns), calculated using a Mann-Whitney U test. The y-axis indicates the range of scores for each parameter (see Suppl. material 1: appendix S2 for exact definition of each score for each parameter). The further apart the two scores are, the more important is the ecological parameter for the observed differences. Diagrams on the left show scores for the Galápagos Islands, those on the right the ones for Cocos Island.