Fig 1.
Sampling stations in the Southern Gulf of Mexico.
Fig 2.
Simulated distribution of a) average taxonomic distinctness (Δ+) and b) variation in taxonomic distinctness Λ+ (theoretical mean, horizontal, dashed line) for random subsets of species from the complete species list of 173 polychaete species from the Southern Gulf of Mexico and the 95% confidence limits (the funnel).
Fig 3.
Taxonomic dissimilarity index θ+ plotted against distance for all pairwise comparisons between sampling stations.
The blue line represents the exponential function describing the increase in dissimilarity (a.intercept = 26.56; b.slope = 0.001).
Fig 4.
Cluster analysis based on taxonomic dissimilarity and Ward’s clustering method.
Fig 5.
Distance-based redundancy analysis (dbRDA) ordination plot showing the relationships between sampling stations based on polychaete taxonomic distinctness and spatial and environmental constraints.
Fig 6.
Variation partitioning of the taxonomic dissimilarity into an environmental component (X1), linear spatial processes (X2), a broad-scale (X3), and fine-scale (X4) dbMEM spatial components.