Figure 6

Relationship of geographic distance (logarithm of shortest swimming distance) and genetic distance of the mitochondrial (mtDNA) and nuclear marker (microsatellites). Triangles symbolize pair-wise comparisons between rookeries that share the same habitat. Filled circles stand for comparisons across habitats. The shaded area indicates the range of geographic distances that is characteristic for both intra- and inter-habitat specific pairwise comparisons. Dotted brackets visualise the value range of genetic distances from within habitat comparisons, solid brackets from between habitat comparisons.