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Testing a new classification of morphological functional groups of marine macroalgae for the detection of responses to stress

机译:测试海洋大型藻类形态功能组的新分类以检测对压力的反应

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摘要

Morpho-functional group classifications have been widely used in studies concerning benthic macroalgal communities, due to their easy application and the reduced cost and workload compared with species-level identifications. However, their effectiveness in representing spatio-temporal patterns and describing the effect of disturbances has been disputed. We propose a new, expanded classification of morphological functional groups based on thallus structure, growth form, branching pattern, and taxonomic affinities. This approach was tested on subtidal macroalgal assemblages of the western Mediterranean. We examined the differences in composition of assemblages subjected to different types of stressors using species, traditional morphological groups, and new morphological groups. Results showed that the new morphological groups allowed to detect patterns highlighted through species analyses generally better than the use of traditional morpho-functional groups. The new morphological groups may represent a valid tool in monitoring programs and environmental impact assessments, where it is important to detect early stages of environmental changes using methods that allow to examine a large number of samples in a limited time.
机译:由于底栖大型藻类群落的易用性以及与物种水平的鉴定相比降低了成本和工作量,因此形态功能群分类已广泛用于有关底栖大型藻类群落的研究。但是,它们在表示时空模式和描述干扰影响方面的有效性一直存在争议。我们提出了一种新的,扩展的形态学功能群分类方法,该分类基于菌体结构,生长形式,分支模式和分类学亲和力。该方法已在地中海西部的潮下大型藻类组合中进行了测试。我们使用种类,传统形态学组和新形态学组别研究了承受不同类型压力源的组合物组成的差异。结果表明,与使用传统形态功能组相比,新的形态组通常能够更好地检测通过物种分析突出显示的模式。新的形态学组可能是监测程序和环境影响评估中的有效工具,其中使用允许在有限的时间内检查大量样本的方法来检测环境变化的早期阶段非常重要。

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  • 来源
    《Marine biology》 |2011年第11期|p.2459-2469|共11页
  • 作者单位

    Tenuta San Beda, via Carmignani 18, 55015 Montecarlo, Lucca, Italy;

    Centro Interuniversitario di Biologia Marina ed Ecologia Applicata, v.le N. Sauro 4, 57100 Livorno, Italy;

    Dipartimento di Scienze del Mare, Universita Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy;

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