Fig 1.
Mean abundance (A) and percent cover (B) of each of the taxa for the year 2 sampling period.
Both seasons and depths depicted.
Table 1.
Results of the multivariate PERMANOVA for abundance data.
Permutations were based on a Bray-Curtis similarity matrix generated from log(x+1) transformed data. Significant p-values (<0.05) in bold.
Table 2.
Results of the multivariate PERMANOVA for percent cover data.
Permutations were based on a Bray-Curtis similarity matrix generated from log(x+1) transformed data. Significant p-values (<0.05) in bold.
Fig 2.
Mean abundance of each taxa, separated by locations, during the summer of the year 2 sampling period.
Note locations 1 to 3 are Masig Is and 4 to 6 are Marsden Is. Refer to S1 Fig for the location of the islands within Torres Strait, Australia.
Fig 3.
Principle coordinate analysis (PCoA) of invertebrate abundances (A) and assemblage structure, using percent cover data (B), at Masig and Marsden Islands.
The five replicate tiles from each depth were pooled prior to constructing a Bray-Curtis similarity matrix. Taxa with a Spearman Rank correlation value greater than 0.6 have been overlaid on the plot as vectors. Summer and winter sampling periods are represented by open and closed symbols, respectively.
Table 3.
Results of PERMANOVA tests to examine differences at both time points (i.e. summer & winter) separately.
Permutations for abundance and percent cover were based on a Bray-Curtis similarity matrix generated from log(x+1) transformed data, while permutations for the individual taxa (using percent cover data) were based on a Euclidian distance matrix using untransformed data. Significant p-values (<0.01 to account for multiple tests) in bold. Is = Island, Lo = Location and Si = Site. Due to their very low abundances, corals were excluded from the individual PERMANOVA tests.
Fig 4.
Variance components for (A) abundance and (B) percent cover for the Year 2 summer and winter.
Note the different y-axis scale bars.
Fig 5.
Mean abundance (A) and percent cover (B) of each sponge, positively identified to species level, for the year 2 sampling.
Both seasons and depths depicted.