A1 Refereed original research article in a scientific journal
Temporal variation in ecological and evolutionary contributions to phytoplankton functional shifts
Authors: Hattich Giannina SI, Listmann Luisa, Havenhand Jonathan, Reusch Thorsten BH, Matthiessen Birte
Publisher: WILEY
Publication year: 2023
Journal: Limnology and Oceanography
Journal name in source: LIMNOLOGY AND OCEANOGRAPHY
Journal acronym: LIMNOL OCEANOGR
Number of pages: 10
ISSN: 0024-3590
eISSN: 1939-5604
DOI: https://doi.org/10.1002/lno.12267
Web address : https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.12267
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/177659924
Communities and their functioning are jointly shaped by ecological and evolutionary processes that manifest in diversity shifts of their component species and genotypes. How both processes contribute to community functional change over time is rarely studied. We here repeatedly quantified eco-evolutionary contributions to CO2-driven total abundance and mean cell size changes after short-, mid-, and longer-term (80, 168, and >168d, respectively) in experimental phytoplankton communities. While the CO2-driven changes in total abundance and mean size in the short- and mid-term could be predominantly attributed to ecological shifts, the relative contribution of evolution increased. Over the longer-term, the CO2-effect and underlying eco-evolutionary changes disappeared, while total abundance increased, and mean size decreased significantly independently of CO2. The latter could be presumably attributed to CO2-independent genotype selection which fed back to species composition. In conclusion, ecological changes largely dominated the regulation of environmentally driven phytoplankton functional shifts at first. However, evolutionary changes gained importance with time, and can ultimately feedback on species composition, and thus must be considered when predicting phytoplankton change.
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