Biodiversity and Environmental Factors Structuring Diatom Assemblages of Mineral Saline Springs in the French Massif Central [* Cross-Reference *]

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Beauger, Aude; Voldoire, Olivier; Allain, Elisabeth; Gosseaume, Pierre; Blavignac, Christelle; Baker, Lory Anne; Wetzel, Carlos E., 2023, "Biodiversity and Environmental Factors Structuring Diatom Assemblages of Mineral Saline Springs in the French Massif Central [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.I6EJG1, LIST Open Repository, V1
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Description
Springs are abundant and present worldwide and are among the most threatened ecosystems on Earth. The main aim of this study was to evaluate the biodiversity of seventy-nine (79) mineral saline springs situated in the French Massif Central, focusing on the species richness and the estimated richness and also on the diatom community composition. The influence of physical and chemical factors on both richness and communities was analyzed in order to have a better knowledge of the diatom ecological preferences and identify species typical of saline springs. Since December 2014, an on-going inventory of mineral springs has been in progress. For each spring, physical and chemical characteristics were measured, and benthic diatoms were sampled. The richness was the lowest in the springs presenting a man-made construction around the emergence. In the other springs, the highest richness was associated with the lowest lithium, sodium, total dissolved solid concentrations, and conductivity. Mineralization and some ions (bromine, calcium, chloride, fluoride, lithium, potassium, and sodium) were found to be the most critical drivers of diatom community composition. Some diatom species were typical of specific abiotic conditions, such as Navicula sanctamargaritae, which was associated with the highest potassium concentration. These species could appear as bio-indicators of these conditions. (2023-02-01)
***This entry has been automatically imported via Infodoc(ASO) CSV by LIST harvest scripts. Please refer to https://doi.org/10.3390/d15020283 for the original and latest version of the dataset and data downloads*** (2026-06-19)
Subject Earth and Environmental Sciences
Keyword biodiversity, diatom communities, environmental factors, mineral saline springs
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