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Article dans une revue

Functional biodiversity loss along natural CO2 gradients

Abstract : The effects of environmental change on biodiversity are still poorly understood. In particular, the consequences of shifts in species composition for marine ecosystem function are largely unknown. Here we assess the loss of functional diversity, i.e. the range of species biological traits, in benthic marine communities exposed to ocean acidification (OA) by using natural CO2 vent systems. We found that functional richness is greatly reduced with acidification, and that functional loss is more pronounced than the corresponding decrease in taxonomic diversity. In acidified conditions, most organisms accounted for a few functional entities (i.e. unique combination of functional traits), resulting in low functional redundancy. These results suggest that functional richness is not buffered by functional redundancy under OA, even in highly diverse assemblages, such as rocky benthic communities.
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https://hal.umontpellier.fr/hal-01994135
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s41467-018-07592-1.pdf
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Distributed under a Creative Commons Paternité 4.0 International License

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Nuria Teixido, Maria Cristina Gambi, Valeriano Parravacini, Kristy Kroeker, Fiorenza Micheli, et al.. Functional biodiversity loss along natural CO2 gradients. Nature Communications, Nature Publishing Group, 2018, 9, ⟨10.1038/s41467-018-07592-1⟩. ⟨hal-01994135⟩

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