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首页> 外文期刊>Marine biology >Morphologically plastic responses to shading in the zoanthids Zoanthus sansibaricus and Palythoa tuberculosa
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Morphologically plastic responses to shading in the zoanthids Zoanthus sansibaricus and Palythoa tuberculosa

机译：zoanthids zoanthus sansibaricus和Palythoa tuberosa的阴影对形态的塑性响应

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摘要

Zoanthids of the order Zoantharia (Anthozoa: Hexacorallia) exhibit high intraspecific morphological variability, but whether this is due to polymorphism, phenotypic plasticity or a combination of both remains unknown. To address this knowledge gap, in November 2010, eight colonies each of Zoanthus sansibaricus and Palythoa tuberculosa were sampled from three reefs off the south of mainland Singapore and transplanted to a shallow experimental site. The colonies were then distributed under two types of treatment frames: control and shaded. After 87 days, morpho-metric characters were extracted from macro-images. Reaction norms, principal components analysis, analysis of variance and canonical discriminant analysis all demonstrated light-induced changes in morphology. Patterns of plastic changes were similar for both species: shaded colonies had larger polyps as compared to control colonies. The presence of plastic responses in zoanthids may facilitate their colonization of a broad range of habitats as well as help them to withstand temporal changes in their environment.
机译：Zoantharia（Anthozoa：Hexacorallia）的Zoanthids具有较高的种内形态变异性，但是这是由于多态性，表型可塑性还是两者的结合仍是未知的。为了解决这一知识鸿沟，2010年11月，从新加坡大陆南部海域的三个珊瑚礁中分别提取了无齿的Zoanthus sansibaricus和结核菌Palythoa tuberculosa的八个菌落，并移植到一个浅水实验点。然后将菌落分布在两种处理框架下：对照和阴影。 87天后，从宏观图像中提取了形态特征字符。反应规范，主成分分析，方差分析和规范判别分析都证明了光诱导的形态变化。两种物种的塑性变化模式相似：与对照菌落相比，阴影菌落的息肉更大。隐居动物中塑料反应的存在可能促进它们在广泛生境中的定殖，并帮助它们抵御环境的暂时变化。

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    《Marine biology》 |2013年第5期|1053-1064|共12页
  • 作者

    Chin Wei Ong; James D. Reimer; Peter A. Todd;

  • 作者单位

    Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Blk S1 #02-05,Singapore 117543, Singapore,DHI Water & Environment (S) Pte Ltd, 1 CleanTech Loop#03-05 CleanTech One, Singapore 637141, Singapore;

    Rising Star Program, Trans-disciplinary Research Organization of Subtropical Science, University of the Ryukyus, 1 Senbaru,Nishihara, Okinawa 903-0213, Japan;

    Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Blk S1 #02-05,Singapore 117543, Singapore;

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