2020
DOI: 10.1002/dvdy.290
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Morphometric and allometric rules of polyp's landscape in regular and chimeric coral colonies of the branching species Stylophora pistillata

Abstract: Background: Most studies on architectural rules in corals have focused on the branch and the colony level, unveiling a variety of allometric rules. Working on the branching coral Stylophora pistillata, here we further extend the astogenic directives of this species at the polyp level, to reveal allometric and morphometric rules dictating polyps' arrangement. Results: We identified a basic morphometric landscape as a six-polyp circlet developed around a founder polyp, with established distances between polyps (… Show more

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Cited by 4 publications
(5 citation statements)
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“…In order to evaluate the significance of the results (Table 2), two χ 2 tests were performed: (1) a comparison of the options "no polyps" vs. "yes polyps" (38/64 vs. 26/64), χ 2 (1, N = 64) = 2.25, p = 0.13, indicated no significant difference between the options; (2) a comparison of one polyp vs. two or more polyps (22/26 vs. 4/26), χ 2 (1, N = 26) = 12.46, p = 0.00042, showed a significant difference between the two groups, suggesting that, if polyps had formed, there was a significant chance of having only one polyp. This observation potentially challenges the typical pattern formation of polyps' arrangement seen in S. pistillata [17].…”
Section: Morphological Outcomesmentioning
confidence: 85%
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“…In order to evaluate the significance of the results (Table 2), two χ 2 tests were performed: (1) a comparison of the options "no polyps" vs. "yes polyps" (38/64 vs. 26/64), χ 2 (1, N = 64) = 2.25, p = 0.13, indicated no significant difference between the options; (2) a comparison of one polyp vs. two or more polyps (22/26 vs. 4/26), χ 2 (1, N = 26) = 12.46, p = 0.00042, showed a significant difference between the two groups, suggesting that, if polyps had formed, there was a significant chance of having only one polyp. This observation potentially challenges the typical pattern formation of polyps' arrangement seen in S. pistillata [17].…”
Section: Morphological Outcomesmentioning
confidence: 85%
“…The injuries reflected the removal of a single polyp from each nubbin. According to the astogeny rules outlined in [17], it was expected that a single new polyp would re-appear in the centre of the wound site where a polyp had previously existed. However, the results (Figure 4) showed that this expected outcome does not consistently occur.…”
Section: Discussionmentioning
confidence: 99%
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“…While xenogeneic encounters of corals always result in interspecific conflicts between the partners, including the development of necrotic zones between interacting young colonies (rejection phenomena; [6,15,16]), allogeneic encounters may not only result in rejection but also tissue fusions between conspecifics, leading to the formation of chimeric colonies [6,[15][16][17]. These outcomes have sig-nificant impacts on corals' survivorship, physiology, fitness, and morphology [6,16,[18][19][20]. The wide distribution of coral chimerism in nature is another indication that aggregated settlement of coral larvae is common, beyond what has been thought [21][22][23][24][25][26] (Figure 1a).…”
Section: Introductionmentioning
confidence: 99%
“…between conspecifics, leading to the formation of chimeric colonies [6,[15][16][17]. These outcomes have significant impacts on corals' survivorship, physiology, fitness, and morphology [6,16,[18][19][20]. The wide distribution of coral chimerism in nature is another indication that aggregated settlement of coral larvae is common, beyond what has been thought [21][22][23][24][25][26] (Figure 1a).…”
Section: Introductionmentioning
confidence: 99%