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首页> 外文期刊>Aquatic Sciences >Do seasonal changes in habitat features influence aquatic macroinvertebrate assemblages in perennial versus temporary Mediterranean streams?
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Do seasonal changes in habitat features influence aquatic macroinvertebrate assemblages in perennial versus temporary Mediterranean streams?

机译：生境特征的季节性变化是否会影响多年生与临时地中海河流中水生大型无脊椎动物的组合？

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摘要

In this study we examined the importance of seasonal changes in habitat features and aquatic macroinvertebrate responses in temporary and perennial streams from two different catchments in the Western Mediterranean region in Spain. Macroinvertebrate sampling was spatially intensive to account for the relative frequency of meso- (i.e., riffles and pools) and micro-habitats (i.e., different mineral and organic-based substrata) at each site. Samples were collected at two distinctly different phases of the hydrograph: (1) during the flowing period, when pool-riffle sequences were well-established, and (2) during the dry phase, when only isolated pools were expected to occur in the temporary streams. During the dry season, both a reduction in the available total habitat and in microhabitat diversity in all sites studied was observed. As a result, taxon richness decreased in all streams, but more dramatically at temporary stream sites and particularly so in the infrequently remaining discontinuous riffles. Macroinvertebrate assemblages differed among catchments (i.e., geographical identity) and sites (perennial vs. temporary). Invertebrate differences were also strong within and among meso- and micro-habitats, particularly mineral and organic microhabitat patches, and differences were due to both loss of taxa from some habitats and some taxa exhibiting certain habitat affinities.
机译：在这项研究中，我们研究了西班牙西地中海地区两个不同集水区的临时和多年生河流生境特征和水生无脊椎动物的季节性变化的重要性。大型无脊椎动物抽样在空间上是密集的，以说明每个地点的中观（即浅滩和水池）和微栖息地（即不同的基于矿物和有机物的基质）的相对频率。在水文图的两个截然不同的阶段收集样本：（1）在水流期间，建立了池浅滩序列；（2）在干燥阶段，预计仅在临时池中发生了隔离池。流。在干旱季节，所有研究地点的可用总生境和微生境多样性均减少。结果，所有河流的分类单元丰富度都下降了，但是在临时河流的站点上尤为明显，尤其是在不经常出现的不连续浅滩上。集水区（即地理特征）和产地（多年生与临时）之间的大型无脊椎动物组合不同。在中生境和微生境中，特别是矿物和有机微生境斑块内和之间，无脊椎动物的差异也很明显，差异是由于某些生境的分类单元丧失和某些具有一定生境亲和力的分类单元造成的。

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  • 来源
    《Aquatic Sciences》 |2011年第4期|p.567-579|共13页
  • 作者

    E. M. Garcia-Roger; M. Rieradevall; N. Prat; M. del Mar Sanchez-Montoya; R. Gomez; M. L. Suarez; M. R. Vidal-Abarca; J. Latron;

  • 作者单位

    Departament d'Ecologia, Universitat de Barcelona,Diagonal 645, 08028 Barcelona, Spain;

    Departament d'Ecologia, Universitat de Barcelona,Diagonal 645, 08028 Barcelona, Spain;

    Departament d'Ecologia, Universitat de Barcelona,Diagonal 645, 08028 Barcelona, Spain;

    Departmento de Ecologia e Hidrologia, Universidad de Murcia,Campus de Espinardo, 30100 Murcia, Spain;

    Departmento de Ecologia e Hidrologia, Universidad de Murcia,Campus de Espinardo, 30100 Murcia, Spain;

    Departmento de Ecologia e Hidrologia, Universidad de Murcia,Campus de Espinardo, 30100 Murcia, Spain;

    Departmento de Ecologia e Hidrologia, Universidad de Murcia,Campus de Espinardo, 30100 Murcia, Spain;

    Grup d'Hidrologia Superficial I Erosio, Institut de Diagnosi Ambiental I Estudis de l'Aigua (IDAEA-CSIC), Sole I Sabari's,s, 08028 Barcelona, 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

    aquatic macroinvertebrates; habitat features; mediterranean climate; temporary streams; undisturbed conditions;

    机译：水生大型无脊椎动物;栖息地特征;地中海气候;临时河流;干旱条件;

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