Figure 4

Networks between herbivorous cichlids and phototrophs in their territories and between phototrophs inside stomachs and fish species. A) shallow inhabiting cichlids, B) deep inhabiting cichlids. Species abbreviations are shown in Table 1. Out = outside the territories. Link width indicates the frequency of occurrence of the OTU in algal farms of cichlids or their stomach contents. Algal and cyanobacteria OTUs that occurred less than 10 times in total are not shown to decrease complexity. Colours of OTUs indicate their phyla, and patterns are the same as in Figure 2. Asterisks indicate significance in standardised specialisation based on d’ measures: *=5%, **=1%, ***=0.1%. These networks were constructed using the composition averaged over one to five samples, and the numbers of samples are shown in the rectangles.