Figure 2From: Bacteria dialog with Santa Rosalia: Are aggregations of cosmopolitan bacteria mainly explained by habitat filtering or by ecological interactions? Propensity to association versus environmental relatedness (top) and versus phylogenetic relatedness (bottom). In the top figure the x axis labels environmental relatedness at the three levels of subtype, type and supertype. For each level, three values of relatedness are possible: ±Same± if the preferred habitat is the same, ±Und± if it is undetermined for one or both taxa, and ±Diff± if it is different.Back to article page