Food webs of (A) intertidal mussel beds and (B) intertidal mudflats without mussel beds (“control”). The food web of a mudflat without mussel bed is typically simpler. Nodes
represent species and lines links between species if a species is included in the diet of the species higher up in the food web. Node colors changes from red (basal species) to yellow
with increasing trophic level. Note that the food web on mussel beds has a higher species richness (# nodes), link density (lines per node; L/S), but not a higher trophic level of top
predators (node color). See Table 2 and Table A.2 for averages and statistics.

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