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Table 3 Results of the SIMPER routine showing the species, which made the greatest contributions to dissimilarity in significant contrast between engineered habitats at each season ranked by decreasing power (%)

From: Habitat complexity and community composition: relationships between different ecosystem engineers and the associated macroinvertebrate assemblages

  Taxa Av. density Av. density Contrib. % Cum. %
   S-M M   
Autumn
Groups S-M & M
Av. dissimilarity = 31.99
Pseudosphaeroma sp. 37.30 6.80 14.87 14.87
Orchestia gammarella 8.00 0.00 13.44 28.31
Boccardia polybranchia 1.00 23.35 12.63 40.94
Mytilus sp. 3.78 2.28 9.31 50.25
   S-M B   
Groups S-M & B
Av. dissimilarity = 43.81
Boccardia polybranchia 0.25 53.38 24.71 24.71
Cyrtograpsus altimanus 3.61 0.10 10.88 35.59
Orchestia gammarella 7.24 0.00 10.83 46.43
Mytilus sp. 2.33 0.18 8.66 55.09
   M B   
Groups M & B
Av. dissimilarity = 40.86
Boccardia polybranchia 5.84 53.38 17.13 17.13
Pseudosphaeroma sp. 1.70 15.60 13.95 31.08
Cyrtograpsus altimanus 4.19 0.10 12.34 43.42
Nemertea 2.81 0.18 10.12 53.55
   S-M M   
Winter
Groups S-M & M
Av. dissimilarity = 25.76
Actinaria 5.08 2.46 12.71 12.71
Boccardia polybranchia 1.11 7.10 11.92 24.63
Orchestia gammarella 2.45 0.33 10.38 35.01
Pseudosphaeroma sp. 11.36 7.86 9.62 44.63
Mytilus sp. 2.39 0.95 8.96 53.59
   S-M B   
Groups S-M & B
Av. dissimilarity = 36.44
Boccardia polybranchia 1.11 39.00 17.02 17.02
Actinaria 5.08 0.03 11.36 28.38
Pseudosphaeroma sp. 11.36 48.18 9.97 38.35
Tanais dulongii 45.36 38.73 9.19 47.54
Monocorophium insidiosum 0.32 4.85 8.82 56.36
   M B   
Groups M & B
Av. dissimilarity = 31.21
Pseudosphaeroma sp. 7.86 48.18 14.36 14.36
Boccardia polybranchia 7.10 39.00 13.78 28.13
Tanais dulongii 58.93 38.73 10.62 38.76
Monocorophium insidiosum 0.69 4.85 10.39 49.15
Actinaria 2.46 0.03 9.37 58.52
   S-M M   
Spring
Groups S-M & M
Av. dissimilarity = 33.84
Pseudosphaeroma sp. 19.01 10.61 14.13 14.13
Orchestia gammarella 6.88 0.13 12.26 26.69
Actinaria 4.30 2.61 11.48 38.17
Boccardia polybranchia 1.17 7.46 10.58 48.76
Tanais dulongii 27.27 40.55 9.91 58.67
   S-M B   
Groups S-M & B
Av. dissimilarity = 43.79
Boccardia polybranchia 1.17 76.03 24.20 24.20
Actinaria 4.30 0.00 11.34 35.54
Orchestia gammarella 6.88 0.05 10.70 46.23
Mytilus sp. 1.40 0.00 10.59 56.83
   M B   
Groups M & B
Av. dissimilarity = 40.05
Boccardia polybranchia 7.46 76.03 24.12 24.12
Pseudosphaeroma sp. 10.61 13.25 12.27 36.38
Tanais dulongii 40.55 12.53 9.65 46.03
Nemertea 2.11 0.10 9.38 55.38
   S-M M   
Summer
Groups S-M & M
Av. dissimilarity = 31.96
Orchestia gammarella 9.56 0.42 13.93 13.93
Boccardia polybranchia 1.51 14.92 13.58 27.52
Pseudosphaeroma sp. 17.82 4.99 13.26 40.77
Tanais dulongii 25.75 37.86 10.37 51.14
   S - M B   
Groups S-M & B
Av. dissimilarity = 45.59
Boccardia polybranchia 1.51 50.95 20.30 20.30
Actinaria 3.51 0.00 12.30 32.60
Orchestia gammarella 9.56 0.05 11.57 44.16
Mytilus sp. 2.10 0.00 10.91 55.07
   M B   
Groups M & B
Av. dissimilarity = 40.71
Pseudosphaeroma sp. 4.99 35.60 15.61 15.61
Boccardia polybranchia 14.92 50.95 14.95 30.56
Nemertea 3.00 0.08 11.12 41.68
Actinaria 1.80 0.00 9.16 51.49
  1. Lists were truncated whenever cumulative percentage reached 50%. Cordgrass–mussel-engineered habitat (S-M), mussel-engineered habitat (M), and barnacle-engineered habitat (B)