Data from: Macroalgal composition determines the structure of benthic assemblages colonizing fragmented habitats

<p>Abundance data for animal assemblages colonizing artificially fragmentated macroalgal patches.</p

Mean (± SE, <i>n</i> = 4) log ratio observed/expected number of animal species in mixed algal assemblages (ET, EC and TC) and fragmentation (low, intermediate or high).

<p>Mean (± SE, <i>n</i> = 4) log ratio observed/expected number of animal species in mixed algal assemblages (ET, EC and TC) and fragmentation (low, intermediate or high).</p

nMDS ordination of centroids of assemblages in patches of different algal assemblages and fragmentation, using <i>n</i> = 4 patches of each combination.

<p>Letters indicate algal assemblages (E, T, C, ET, EC, TC). Numbers indicate the treatment: 1 is low; 2 is intermediate; 3 is high. Data were ln (X+1) transformed.</p

Analysis of variance of number of species, number of species standardized by per algal biomass; and numbers of individuals in experimental patches.

<p>* = <i>P</i> < 0.05</p><p>*** = <i>P</i> < 0.001</p><p>Assemblage is the fixed comparison with three levels: a) monotypic assemblages (E, T, C) or b) (ET, EC and TC). Fragmentation is a fixed comparison with three levels (low, intermediate and high). Pairwise comparisons (SNK tests) for the three assemblage types within each diversity level, means in brackets (<i>n</i> = 4); No. species / biomass and no. individuals were transformed using log(x+1).</p

Mean (± SE, <i>n</i> = 4) numbers of species in patches with different algal assemblages (E, T, C, ET, EC, TC) and fragmentation (low, intermediate or high).

<p>Mean (± SE, <i>n</i> = 4) numbers of species in patches with different algal assemblages (E, T, C, ET, EC, TC) and fragmentation (low, intermediate or high).</p

Analysis of variance of abundances of (a) gastropods and (b) amphipods in experimental patches. Assemblage is the fixed comparison with three levels: monotypic (E, T, C) or mixed (ET, EC and TC) assemblages.

<p>* = <i>P</i> < 0.05</p><p>** = <i>P</i> < 0.01</p><p>Fragmentation is a fixed comparison with three levels (low, intermediate or high). Significant factors compared with SNK at <i>P</i> < 0.05. (c) Means (<i>n</i> = 4) and SNK tests.</p

Analysis of variance of log ratio between expected and observed number of species in different macroalgal assemblages (ET, EC, and TC) and fragmentation (low, intermediate and high).

<p>*** = <i>P</i> < 0.001.</p><p>Log ratio was calculated using the relative abundances of each macroalgal morphological groups in monotypic patches (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0142289#sec002" target="_blank">Methods</a> for details). Means and SNK tests are in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0142289#pone.0142289.g004" target="_blank">Fig 4</a>.</p

Most abundant groups of benthic macroinvertebrates found in patches made of bare rock (clear bars), bare rock and crust (grey bars), bare rock and turf (striped bars), bare rock and canopy (black bars).

<p>Most abundant groups of benthic macroinvertebrates found in patches made of bare rock (clear bars), bare rock and crust (grey bars), bare rock and turf (striped bars), bare rock and canopy (black bars).</p

Graphical illustration of (a) monotypic and (b) mixed algal assembles with (c) different levels fragmentation (i.e. low, intermediate and high).

<p>Different letters indicate the three different morphological groups. Dashed boxed indicate bare rock.</p

Comparison of the magnitude of FD loss and regional species richness.

<p>One-way ANCOVA comparing the magnitude of the ratio between FD random and FD exploited for different levels of species removals (7, 15, 22 and 29 species removals) as a function of regional species richness (logged). All terms tested against the residual.</p