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Congruence between functional and taxonomic patterns of benthic and planktonic assemblages in flatland ponds

机译：平原池塘底栖和浮游组合的功能和分类模式的一致性

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摘要

Using data from 31 ponds, we investigated the importance of environmental (e.g. habitat complexity, nutrient content, pH) and biotic factors (i.e. fish predation) on the spatial patterns of planktonic (phytoplankton and zooplankton) and benthic (macroinvertebrates) assemblages. We also evaluated the degree of concordance among assemblages and between the functional and taxonomic composition of assemblages, and test the hypothesis that surrogates of biodiversity (e.g. taxonomic or functional groups) can be used in pond conservation and biomonitoring studies. We found that the spatial patterns of benthic and pelagic assemblages were determined by macrophyte coverage, water quality and, to a lesser extent, fish. However, shifts in the taxonomic and functional composition were not congruent. Moreover, local environmental variation was slightly more important for the taxonomic than the functional composition of assemblages, except for phytoplankton. The degree of concordance among assemblages was also weak, which may be partly due to the fact that species respond individualistically to environmental variation. These findings also suggest that the coupling between benthic and pelagic habitats in flatland ponds is weak, and that the use of surrogate measures or indicator groups in pond conservation studies may not be appropriate.
机译：我们使用来自31个池塘的数据，调查了环境（例如栖息地的复杂性，营养成分，pH）和生物因子（即鱼类捕食）在浮游生物（浮游植物和浮游动物）和底栖生物（大型无脊椎动物）组合中的重要性。我们还评估了组合之间以及组合的功能和分类组成之间的一致性程度，并检验了假设生物多样性的替代物（例如分类或功能组）可用于池塘保护和生物监测研究的假设。我们发现，底栖动物和中上层鱼类的空间格局是由大型植物的覆盖率，水质以及在较小程度上由鱼类决定的。但是，分类和功能组成的变化并不完全相同。此外，除了浮游植物外，对于分类学而言，局部环境变化对生物分类的影响要比组合物的功能组成更为重要。组合之间的一致性程度也很弱，这可能部分是由于物种对环境变化的个体反应所致。这些发现还表明，平地池塘底栖生境和中上层生境之间的耦合较弱，在池塘保护研究中使用替代措施或指标组可能不合适。

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  • 来源
    《Aquatic Sciences》 |2014年第1期|61-72|共12页
  • 作者

    C. Trigal; C. Fernandez-Alaez; M. Fernandez-Alaez;

  • 作者单位

    The Swedish Species Information Center, Swedish University of Agricultural Sciences, Box 7007, 750 07 Uppsala, Sweden;

    Department of Biodiversity and Environmental Management, University of Leon, Leon, Spain;

    Department of Biodiversity and Environmental Management, University of Leon, Leon, Spain;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ponds; Phytoplankton; Macroinvertebrates; Zooplankton; Biodiversity;

    机译：池塘;浮游植物;大型无脊椎动物;浮游动物;生物多样性;

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