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. 2019 Sep 18;6(9):190958. doi: 10.1098/rsos.190958

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 4. — PCO analysis ordination of Bermuda's megabenthic communities based on presence–absence (a) and abundance data (b). Axes describe percentage variation in terms of benthic community structure. Superimposed are vectors of morphotypes highly correlated with the two PCO axes (Pearson's correlation coefficient, ρ ≥ |0.75| for (a) and ρ ≥ |0.6| for (b), due to a high number of correlated species in the case of (a). The length and direction of the vectors represent the strength and direction of the relationship. Species codes: Scleractinia, 1 = Agaricia fragilis, 2 = Diploria labyrinthiformis, 3 = Madracis spp., 4 = Meandrina meandrites, 5 = Montastrea cavernosa, 6 = Orbicella franksi, 7 = Porites astreoides, 8 = Pseudodiploria strigosa, 9 = Siderastrea radians/Stephanocoenia stokesi. Antipatharia, 10 = Antipathes atlantica, 11 = Stichopathes spp., 12 = Tanacetipathes tanacetum. Octocorallia, 13 = Antillogorgia spp., 14 = Eunicea spp., 15 = Hypnogorgia sp., 16 = Plexaurella spp. ALGAE, 17 = Brown fleshy crust, 18 = Dictyopteris spp./Dictyota spp., 19 = Sporochnus bolleanus. Porifera, 20 = Aplysina fistularis, 21 = Yellow encrusting sponge. Others, 22 = Millepora alcicornis, 23 = Palythoa caribaeorum. NNE: North Northeast; PL: Plantagenet Bank; SP: Spittal; TIG: Tiger.