Abstract
The great diversity of diatoms in aquatic ecosystems and their close relationship with water chemistry make them one of the most informative and widely used biological proxies in paleoenvironmental studies of wetlands, except for peatland ecosystems. Currently, significant controversy still exists over the preservation of diatoms in peat. However, considerable evidence indicates that diatoms remain in good condition in minerotrophic peatlands, and they have been successfully used in paleoenvironmental studies in high-latitude regions and especially in Southern Europe.
Highlights
Peatland ecosystems are highly sensitive to climatic conditions and anthropic pressure; they have been classified as a priority habitat of community interest by the Habitats Directive 92/43/EEC of the European Union [1], in order to establish protection areas and promote monitoring programs that guarantee their conservation
Quaternary 2020, 3, 10 reason, this paper focuses on the potential of diatoms in paleoenvironmental studies of peatlands reviewing the scarce and disperse information available in Europe and other regions of the world
Serieyssol et al [62] established that the greater preservation of diatoms in minerotrophic peatlands than in ombrotrophic ones is the result of the greater redissolution of frustules at pH < 5
Summary
Peatland ecosystems are highly sensitive to climatic conditions and anthropic pressure; they have been classified as a priority habitat of community interest by the Habitats Directive 92/43/EEC of the European Union [1], in order to establish protection areas and promote monitoring programs that guarantee their conservation. This situation, in the context of climate change, is especially concerning in Southern Europe, where their distribution is very limited and highly fragmented [2,3,4]. Quaternary 2020, 3, 10 reason, this paper focuses on the potential of diatoms in paleoenvironmental studies of peatlands reviewing the scarce and disperse information available in Europe and other regions of the world
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