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Mutualist-induced morphological changes enhance growth and survival of corals

机译:互惠生引起的形态变化促进珊瑚的生长和生存

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摘要

Species interactions can induce morphological changes in organisms that affect their subsequent growth and survival. In Moorea, French Polynesia, epibiotic gammaridean amphipods induce the formation of long, branch-like coral "fingers" on otherwise flat, encrusting, or plating Montipora coral colonies. The fingers form as corals encrust tubes built by the amphipods and lead to significant changes in colony morphology. This study examines the costs and benefits of this association to the amphipods and corals and demonstrates that the interaction is a mutualism. Amphipods gain protection from predators by living within corals, and corals benefit by enhanced growth and survival. Benefits to the coral arise through direct effects due to the amphipods' presence as well as through benefits derived from the altered colony morphology. This study demonstrates that induced morphological plasticity can be a mechanism for facilitation, adding to our knowledge of the roles mutualism, and phenotypic plasticity play in ecology.
机译:物种之间的相互作用可以诱导生物的形态变化,从而影响其随后的生长和生存。在法属波利尼西亚的莫雷阿岛,表生生物的γ-酰胺类两足动物诱导了长条状的珊瑚状“手指”在原本平坦,结壳或覆盖的Montipora珊瑚群落上形成。手指形成时,珊瑚会包裹两栖动物建立的管子,并导致菌落形态发生重大变化。这项研究考察了这种与两栖动物和珊瑚的联系的成本和收益,并证明了这种相互作用是一种共生关系。两栖动物通过生活在珊瑚中而获得了免受掠食者的保护,而珊瑚则通过增强生长和生存而受益。由于两栖动物的存在而产生的直接影响,以及由于改变的菌落形态而产生的好处,都对珊瑚产生了好处。这项研究表明,诱导的形态可塑性可能是促进作用的机制,这增加了我们对共生作用和表型可塑性在生态学中的作用的认识。

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  • 来源
    《Marine biology》 |2011年第10期|p.2267-2277|共11页
  • 作者单位

    Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, USA ,Division of Science and Environmental Policy, California State University Monterey Bay, Seaside, CA 93955, USA;

    School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794, USA;

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