Stable seasonal and annual alpha diversity of benthic diatom communities despite changing community composition

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http://hdl.handle.net/10138/312312

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Virta , L , Soininen , J & Norkko , A 2020 , ' Stable seasonal and annual alpha diversity of benthic diatom communities despite changing community composition ' , Frontiers in Marine Science , vol. 7 , 88 . https://doi.org/10.3389/fmars.2020.00088

Title: Stable seasonal and annual alpha diversity of benthic diatom communities despite changing community composition
Author: Virta, Leena; Soininen, Janne; Norkko, Alf
Other contributor: University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Ecosystems and Environment Research Programme









Date: 2020-02-25
Language: eng
Number of pages: 9
Belongs to series: Frontiers in Marine Science
ISSN: 2296-7745
DOI: https://doi.org/10.3389/fmars.2020.00088
URI: http://hdl.handle.net/10138/312312
Abstract: The global biodiversity loss has raised interest in the different facets of diversity, and the importance of diversity for ecosystem functions has been recognized. However, our knowledge on seasonal and inter-annual variation in the composition and diversity of communities is still poor. Here, we investigated the seasonal and inter-annual changes in taxonomic and functional community composition and diversity of benthic diatoms in a coastal habitat of the northern Baltic Sea, where seasonal and inter-annual variation of climate is pronounced. We found that the taxonomic and functional alpha diversity remained stable at seasonal and inter-annual level despite strong changes in community composition. However, alpha diversity decreased during an exceptionally warm winter possibly due to disturbances induced by the lack of ice. This may suggest that climate warming and consequently limited ice cover will affect the diversity of benthic communities.
Subject: seasonal variation
annual variation
community composition
diversity
benthic diatoms
Baltic Sea
microphytobenthos
OCEAN
ASSEMBLAGES
ENVIRONMENT
DYNAMICS
LAKE
ICE
BAY
1172 Environmental sciences
1181 Ecology, evolutionary biology
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