连接底栖光合生物的群落和元群落观点(Serranía de Cuenca,西班牙中部)

IF 1.2 4区 环境科学与生态学 Q4 LIMNOLOGY Limnetica Pub Date : 2022-01-01 DOI:10.23818/limn.42.04
M. Álvarez Cobelas, C. Rojo
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引用次数: 0

摘要

我们分析了生活在西班牙中部Serranía de Cuenca原始生态系统中的底栖微藻和蓝藻(BMC)的夏季组合和元群落结构。我们的分析集中在整体样本和一些站点亚群上(两个大的集水区,水环境与水环境,植物与矿物基质)。其中硅藻、绿藻和蓝藻是最丰富的类群。植物区系组成取决于每个子流域的电导率和森林的百分比;尽管如此,其构成在空间上是均匀的,反映了景观相对较低的可变性。分类丰富度在不同亚群间无显著差异,但易受低浓度氮磷化合物较高值的影响。在该地区出现了两组BMC组合:一组是世界性的硅藻和蓝藻,另一组是与石灰华相关的蓝藻、硅藻和绿藻。元群落的结构受空间、流域特征和当地环境(化学和生物)的影响;强调了通常不加以分析的生物因素的相关性。最后,我们建议结合多种底栖生物的多种发生数据库,进行局部生态与元群落的联合研究。很快,人工智能和新的分类工具将允许对现有的大量淡水数据集进行更快、更全面的处理,这将是未来几年底栖生物群落生态知识的巨大飞跃。
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Bridging community and metacommunity perspectives in benthic photosynthetic organisms (Serranía de Cuenca, Central Spain)
We analysed summer assemblages and the metacommunity structure of benthic microalgae and Cyanobacteria (BMC) living in pristine ecosystems in the Serranía de Cuenca (Central Spain), whose flora is not well-known. Our analyses were focused on both overall samples and some site subgroups (two large catchments, lotic vs lentic environments, plant vs mineral substrates). 379 taxa were recorded, with Diatoms, Chlorophytes and Cyanobacteria being the richest groups. The flora composition de-pended on conductivity and the percentage of forests in each sub-basin; even so, the composition was spatially homogeneous, reflecting the relatively low variability of the landscape. Taxonomic richness did not differ between inventory subgroups, but it was vulnerable to the somewhat higher values of low concentrations of nitrogen and phosphorus compounds. Two groups of BMC assemblages emerged in the territory: one of cosmopolitan Diatoms and Cyanobacteria, and another of Cyanobacteria, Diatoms and Chlorophytes associated with travertine. The structure of the metacommunity was governed by the contributions of space, catchment features and the local environment (chemical and biological); the relevance of biological factors, which are not usually analysed, was highlighted. Finally, we suggest the joint study of local ecology and metacommunity that is feasible with the many occurrence databases of many benthic organisms. Soon artificial intelligence and new taxonomic tools will allow faster and more comprehensive processing of the huge number of freshwater datasets already in existence, which will be a huge leap in ecological knowledge of benthic assemblages in the coming years.
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来源期刊
Limnetica
Limnetica LIMNOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
3.70
自引率
7.10%
发文量
26
审稿时长
>12 weeks
期刊介绍: Limnetica publishes original research articles on the ecology of inland waters. The scope of Limnetica includes the ecology of rivers, lakes, reservoirs, coastal lagoons and wetlands, as well as biogeochemistry, paleolimnology, development of new methodologies, taxonomy, biogeography and any aspect of theoretical and applied continental aquatic ecology such as management and conservation, impact assessment, ecotoxicology and pollution. Limnetica will accept for its publication scientific articles presenting advances in knowledge or technological development, as well as as papers derived from new practical approaches on the topics covered by the journal.
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