Composition of all treatments including the six artificial polyspecific and three monospecific communities for the three manipulated habitat-forming species: Fucus distichus edentatus, Fucus vesiculosus and Mytilus spp.

*percentage covers of the three habitat-forming species were not manipulated.The percentage covers that were used to create the three levels of evenness and two levels of abundance including information on the procedural controls (empty shells and grid) are shown. See methods section for details.Composition of all treatments including the six artificial polyspecific and three monospecific communities for the three manipulated habitat-forming species: Fucus distichus edentatus, Fucus vesiculosus and Mytilus spp.