Across-shore differences in lake benthic invertebrate communities within reed stands (Phragmites australis (Cav.) Trin. ex Steud.)

IF 0.9 3区生物学 Q3 MARINE & FRESHWATER BIOLOGY

International Review of Hydrobiology Pub Date : 2019-01-11 DOI:10.1002/iroh.201801955

Oliver Miler, Magdalena Czarnecka, Xavier-François Garcia, Anne Jäger, Martin Pusch

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引用次数: 2

Abstract

The spatial distribution of benthic macroinvertebrates along reed transects was studied in lakes with minimal human disturbances to enable a deeper understanding of the functioning of reed macroinvertebrate communities and relations to biotic and abiotic environmental variables. The taxonomic and functional macroinvertebrate community composition significantly differed between outer margin, center, and shore locations. At shore locations, higher proportions of Gastropoda, Hydrachnidia and Coleoptera, mobile swimmers/skaters, predators, and shredders were found. However, outer margin locations were characterized by a higher proportion of sessile filter-feeding Bivalvia and mining Diptera. At the outer margins, also greater contributions of taxa preferring pelal habitats and r-strategists typical for more disturbed environments were observed. An indicator species analysis revealed Asellus aquaticus (Crustacea) and Scirtidae Gen sp. (Coleoptera) as significant indicator taxa for shore locations and Valvata piscinalis (Gastropoda), Tinodes sp. and Orthotrichia sp. (Trichoptera) as significant indicator taxa for outer margin locations. The taxonomic composition of macroinvertebrate communities was significantly related to higher water depth, oxygen content, and pH at outer margin locations. Shore locations were characterized by higher amounts of woody debris, leaf litter, and decaying plant material. In summary, the taxonomic and functional composition of macroinvertebrates varied strongly from shore to outer margin locations and could be related to spatial changes in hydrodynamical and food conditions along the transects.

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芦苇林内湖底栖无脊椎动物群落的跨岸差异(芦苇属)指标。Steud交货)。

为了更深入地了解芦苇大型无脊椎动物群落的功能及其与生物和非生物环境变量的关系，在人为干扰最小的湖泊中研究了芦苇类大型无脊椎动物的空间分布。大型无脊椎动物群落的分类学和功能组成在外缘、中心和岸边有显著差异。在岸边，腹足类、水螅类和鞘翅类、游动游泳/滑水动物、食肉动物和碎纸虫的比例较高。而外缘的双翅目和滤食性双翅目比例较高。在外缘，偏爱萼片生境的类群和受干扰程度较高的典型r-策略类群的贡献也较大。指示种分析表明，Asellus aquaticus(甲壳纲)和Scirtidae Gen sp.(鞘翅目)是海岸定位的重要指示类群，Valvata piscinalis(腹足目)、Tinodes sp.和Orthotrichia sp.(毛翅目)是外缘定位的重要指示类群。大型无脊椎动物群落的分类组成与较高的水深、氧含量和pH值有显著的相关性。海岸地区的特征是大量的木屑、凋落叶和腐烂的植物材料。综上所述，大型无脊椎动物的分类和功能组成从海岸到外缘有明显的差异，这可能与沿样带的水动力和食物条件的空间变化有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Review of Hydrobiology 生物-海洋与淡水生物学

CiteScore

4.10

自引率

10.50%

发文量

审稿时长

3 months

期刊介绍： As human populations grow across the planet, water security, biodiversity loss and the loss of aquatic ecosystem services take on ever increasing priority for policy makers. International Review of Hydrobiology brings together in one forum fundamental and problem-oriented research on the challenges facing marine and freshwater biology in an economically changing world. Interdisciplinary in nature, articles cover all aspects of aquatic ecosystems, ranging from headwater streams to the ocean and biodiversity studies to ecosystem functioning, modeling approaches including GIS and resource management, with special emphasis on the link between marine and freshwater environments. The editors expressly welcome research on baseline data. The knowledge-driven papers will interest researchers, while the problem-driven articles will be of particular interest to policy makers. The overarching aim of the journal is to translate science into policy, allowing us to understand global systems yet act on a regional scale. International Review of Hydrobiology publishes original articles, reviews, short communications, and methods papers.