...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology >Sediment depth and habitat as predictors of the diversity and composition of sediment bacterial communities in an inter-tidal estuarine environment
【24h】

Sediment depth and habitat as predictors of the diversity and composition of sediment bacterial communities in an inter-tidal estuarine environment

机译：潮间河口环境中沉积物深度和生境是沉积物细菌群落多样性和组成的预测因子

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Saltmarshes, seagrass meadows and mudflats are key habitats in estuarine ecosystems. Despite being involved in key ecological processes, the influence of different estuarine habitats on sediment bacterial communities remains understudied. Few studies have analysed and compared the bacterial communities of more than one estuarine habitat at different depths. Here, we investigated to what extent different habitats (mudflats; mono-specific plots of seagrass [Zostera noltei] and two saltmarsh plants [Juncus maritimus and Spartina maritima]) and sampling depth (0, 5, 10cm) influence variation in sediment bacterial composition. Our results showed significant differences in the abundance of selected higher taxa amongst habitats and depths. Surface sediment was characterized by bacteria assigned to the Acidimicrobiia, Flavobacteriia, Thiotrichales, Alteromonadales and Rhodobacterales, whereas in deeper sediment Deltaproteobacteria and Anaerolineae were dominant. Juncus sediment, in turn, presented the most distinct bacterial community, with Myxococcales abundant in this habitat. Sampling depth and habitat proved significant predictors of variation in sediment bacterial composition. The compositional dissimilarities amongst habitats and depths suggest functional divergence and complementarity, thus enhancing ecosystem functioning and health. Given the compositionally distinct communities found in different habitats and depths, our study corroborates the importance of conserving a diverse array of estuarine habitats.
机译：盐沼，海草草甸和滩涂是河口生态系统的主要栖息地。尽管参与了关键的生态过程，但仍未充分研究不同河口生境对沉积物细菌群落的影响。很少有研究对不同深度的多个河口生境的细菌群落进行分析和比较。在这里，我们调查了不同程度的生境（泥滩；海草[Zostera noltei]和两种盐沼植物[Juncus maritimus和Spartina maritima]）的单一栖息地和取样深度（0、5、10cm）对沉积物细菌成分变化的影响程度。我们的结果表明，不同生境和深度之间选择的较高分类单元的丰度存在显着差异。表层沉积物的特征是细菌属于酸性菌，黄杆菌，硫柳汞，交链藻和红细菌，而在较深的沉积物中，三角洲细菌和厌氧菌是优势菌。反过来，Juncus沉积物呈现出最独特的细菌群落，该生境中富含粘球菌。采样深度和栖息地证明是沉积物细菌组成变化的重要预测因子。栖息地和深度之间的组成差异表明功能上的差异和互补性，从而增强了生态系统的功能和健康。考虑到在不同的生境和深度发现了组成独特的群落，我们的研究证实了保护各种河口生境的重要性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号