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Supporting Information

Additional Supporting Information may be found in the online version of this article:

Table S1. Experiment 1. Analysis of (a) mean number of mollusks, echinoderms, and chitons per boulder in two sites at Cape Banks and (b) mean number of species of mollusks, echinoderms, and chitons per boulder, measured 1, 3, 7, 12, and 15 weeks after deployment; times were fixed, sites were random; n = 20; &ast;p < 0.05; &ast;&ast;p < 0.01; &ast;&ast;&ast;p < 0.001.

Table S2. Experiment 2. Analysis of mean cover of bare space, algae, and sessile animals per boulder on each of three artificial patches in each of two sites at Cape Banks (CB) and Little Bay (LB) 5, 12, 27, and 52 weeks after deployment; locations, sites, and patches random; n = 5; t tests compare the new to natural boulders in each location (after new and natural boulders were no longer significantly different, no further t tests were done); &ast;p < 0.05; &ast;&ast;p < 0.01; &ast;&ast;&ast;p < 0.001.

Table S3. Experiment 2. Analysis of mean numbers of all mollusks and chitons only per boulder on each of three artificial patches in each of two sites at Cape Banks (CB) and Little Bay (LB) 5, 12, 27, and 52 weeks after deployment; locations, sites, and patches random; n = 5; t tests compare the new to natural boulders in each location (after new and natural boulders were no longer significantly different, no further t tests were done); &ast;p < 0.05; &ast;&ast;p < 0.01; &ast;&ast;&ast;p < 0.001.

Table S4. Experiment 2. Analysis of mean abundance of mollusks per boulder on each of three artificial reefs in each of two sites at Cape Banks and Little Bay over 10 times of sampling in 1 year; times fixed, locations, sites, and patches random; n = 5; &ast;p < 0.05; &ast;&ast;p < 0.01; &ast;&ast;&ast;p < 0.001. Pooling procedures used as per Underwood (1997); (Agt, Agnewia tritoniformis; Ap, Austrocochlea porcata; Asp, Acanthochiton sp.; At, Astralium tentoriformis; Cm, Collumbellidae; Cp, Cantharidella picturata; Ct, Cellana tramoserica; Ia, Ischnochiton australis; Iv, Ischnochiton versicolor; Nf, Notoacmaea flammea; Pm, Patelloida mufria). Superscripts indicate tests against pooled terms: A, tested against T × L pooled with T × S(L); B, tested against S(L) pooled with R(S[L]); C, tested against T × S(L) pooled with T × R(S[L]).

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