A functional group approach to the structure of algal-dominated communities

A functional group approach to the structure of algal-dominated communities
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DOI:
10.2307/3545860
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发表时间:
1994-04
期刊:
影响因子:
3.4
通讯作者:
R. Steneck;M. Dethier
R. Steneck;M. Dethier
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
R. Steneck;M. Dethier

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我们认为,相对较少的物种属性是压倒一切的重要性,底栖海藻群落的结构,这些往往是共享的分类遥远的物种。来自北大西洋西部、北太平洋东部和加勒比的数据表明,在功能组一级相对于环境的生产力和食草动物引起的干扰潜力进行审查时,藻类生物量、多样性和优势度的模式惊人地趋同。我们提出了一个简单的图形模型,提供了一种方法来预测藻类群落组成的基础上,这两个环境轴。这种可预测性源于藻类功能群具有质量比生产力、叶状体寿命和冠层高度的特征速率,使它们以类似的方式“表现”(.)
We suggest that relatively few species attributes are of overriding importance to the structure of benthic marine algal communities and that these are often shared among taxonomically distant species. Data from the western North Atlantic, eastern North Pacific and Caribbean suggest that patterns in algal biomass, diversity and dominance are strikingly convergent when examined at a functional group level relative to the productivity and herbivore-induced disturbance potentials of the environment. We present a simple graphical model that provides a way to predict algal community composition based on these two environmental axes. This predictability stems from algal functional groups having characteristic rates of mass-specific productivity, thallus longevity and canopy height that cause them to «behave» in similar ways (...)