Index describing the population size structure and recruitment for <i>Millepora platyphylla</i> across the five habitats surveyed.

<p>Index describing the population size structure and recruitment for <i>Millepora platyphylla</i> across the five habitats surveyed.</p

Morphologies of <i>Millepora platyphylla</i> colonies in habitats experiencing contrasting hydrodynamic regimes.

<p>(A) Encrusting wave-tolerant morphology in the mid slope, a fore reef habitat at 13 m; (B) sheet tree morphology vulnerable to wave-induced breakage in the upper slope, a fore reef habitat at 6 m and (C) massive wave-tolerant morphology in the patch reef, a lagoonal habitat (photo is courtesy of Gilles Siu).</p

Non-metric multidimensional scaling (MDS) plot of <i>Millepora platyphylla</i> population structure across the five surveyed habitats.

<p>Different shapes indicate the three transects for each habitat and grey lines show clusters given by dendogram based on Eucledian distance of 4 at a stress level of 0.09. The surimposed red lines define the Eucledian distance coefficient on normalized data based on Spearman ranking, with each vector having lengths ≥ 0.4: density, cover, distribution index, mean neighborhood distance, mean height and size of adults, and proportion of recruits (< 1 cm²), juveniles (1–20 cm²) and adults (> 20 cm²). The second transect of the fringing reef is shown as a single group mostly related to a small population size (i.e. 27 colonies, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0173513#pone.0173513.s002" target="_blank">S2 Table</a>).</p

Stock-recruitment relationship between the abundance of adults and coral new recruits and juveniles.

<p>(A) Significant positive relationship in the lagoon (i.e. back, fringing and patch reefs) and (B) no stock-recruitment relationship in the fore reef (i.e. mid and upper slopes). Each dot represents the mean abundance for each transect surveyed. Note the different scales on x and y axes.</p

Morphology of <i>Millepora platyphylla</i> adult colonies across the five surveyed habitats.

<p>Proportions of colonies with encrusting, sheet tree and massive morphology were averaged by habitats and error bars show the standard error for transect replicates. Similar letters over each set of bars indicate no statistical difference in post-hoc comparisons for a given morphology among habitats (<i>P ></i> 0.05). See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0173513#pone.0173513.g002" target="_blank">Fig 2</a> for photos of each of the morphologies.</p

Aerial views of the locations of each transect in the five surveyed habitats in Moorea, French Polynesia.

<p>The names of these surveyed locations are: (A) Tiahura, (B) Papetoai, (C) Cook’s Bay and (D) Temae. Map data WorldView–2, Digital Globe.</p

Comparison between genetic and morphological clustering.

<p>a) Topology of the phylogenetic tree inferred from average ATPSα genetic distances using maximum likelihood method. b) Morphological tree inferred from the three main morphological features (branch thickness, branch spacing and branch length to thickness ratio) using average linkage. Species codes represent the species names (Car - M. carmabi, For – M. formosa, Dec – M. decactis) followed by a sample number. Coloured ellipses indicate similar clades in both trees.</p

The experimental underwater sound field.

<p>Analysis of RMS power gradients on all three axes of the experimental set-up (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0010660#pone-0010660-g001" target="_blank">Figure 1</a>) during playback showed a 4.4 dB gradient within the chamber. Recordings were taken at three locations along the apparatus. The gradient in the measurements is near to a cylindrical model of geometric spreading (R_L = S_L – 10 log (R/R_ref)), as expected for shallow water environments, except that instead of a geometric model parameter of 10, the measured value was 11.1 (SEM = 1.4).</p

Movement of coral larvae towards reef sounds.

<p>(A) The proportion of coral larvae at various distances from speakers playing reef sounds are given as averages of Day 1 and 2 of the experiment (+1SEM). (B) Proportion of larvae at each distance class that were observed against the upper surface of the chambers (i.e., the surface nearest the speakers) when reef sounds were played from above (blue) and sounds were played from aside (light blue). Data are shown as averages from Day 3 of the experiment (+1SEM).</p

Morphometrics of branching coral colonies.

<p>a) Morphological skeleton generated from a volume of a CT scan of a Madracis colony, b) branch thickness, da – white sphere, db – black sphere, dc – gray sphere, c) branch spacing (br-spacing) and d) branching angle relative to the growth direction (g_angle).</p