Winter severity determines functional trait composition of phytoplankton in seasonally ice-covered lakes

Global Change Biology
Deniz ÖzkundakciRita Adrian

Abstract

How climate change will affect the community dynamics and functionality of lake ecosystems during winter is still little understood. This is also true for phytoplankton in seasonally ice-covered temperate lakes which are particularly vulnerable to the presence or absence of ice. We examined changes in pelagic phytoplankton winter community structure in a north temperate lake (Müggelsee, Germany), covering 18 winters between 1995 and 2013. We tested how phytoplankton taxa composition varied along a winter-severity gradient and to what extent winter severity shaped the functional trait composition of overwintering phytoplankton communities using multivariate statistical analyses and a functional trait-based approach. We hypothesized that overwintering phytoplankton communities are dominated by taxa with trait combinations corresponding to the prevailing winter water column conditions, using ice thickness measurements as a winter-severity indicator. Winter severity had little effect on univariate diversity indicators (taxon richness and evenness), but a strong relationship was found between the phytoplankton community structure and winter severity when taxon trait identity was taken into account. Species responses to winter severi...Continue Reading

References

Sep 9, 2006·Science·Miguel B Araújo, Carsten Rahbek
May 15, 2007·Ecology Letters·Anne E Magurran
Mar 27, 2010·Ecology Letters·Brian J McGill
Apr 17, 2010·Limnology and Oceanography·Rita AdrianMonika Winder
Nov 24, 2012·Ecology Letters·Susanne WilkenEllen Van Donk
Oct 1, 2001·Oecologia·Pierre Legendre, Eugene D Gallagher

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Citations

Nov 28, 2016·Ecology Letters·Stephanie E HamptonMarguerite A Xenopoulos
Nov 26, 2016·Global Change Biology·James W MorleyMalin L Pinsky
Jan 18, 2019·Nature Communications·Daniel M PerkinsGabriel Yvon-Durocher
Mar 27, 2021·Frontiers in Microbiology·Osiris Díaz-TorresMisael Sebastián Gradilla-Hernández
Mar 30, 2021·Limnology and Oceanography·Allison R Hrycik, Jason D Stockwell

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