Is the impact of eutrophication on phytoplankton diversity dependent on lake volume/ecosystem size?

Submitted: 16 August 2016
Accepted: 13 October 2016
Published: 1 December 2016
Abstract Views: 2859
PDF: 983
Supplementary: 345
HTML: 1260
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.


Research focusing on biodiversity responses to the interactions of ecosystem size and anthropogenic stressors are based mainly on correlative gradient studies, and may therefore confound size-stress relationships due to spatial context and differences in local habitat features across ecosystems. We investigated how local factors related to anthropogenic stressors (e.g., eutrophication) interact with ecosystem size to influence species diversity. In this study, constructed lake mesocosms (with two contrasting volumes: 1020 (shallow mesocosms) and 2150 (deep mesocosms) litres) were used to simulate ecosystems of different size and manipulated nutrient levels to simulate mesotrophic and hypertrophic conditions. Using a factorial design, we assessed how the interaction between ecosystem size and nutrients influences phytoplankton diversity. We assessed community metrics (richness, diversity, evenness and total biovolumes) and multivariate community structure over a growing season (May to early November 2011). Different community structures were found between deep and shallow mescosoms with nutrient enrichment: Cyanobacteria dominated in the deep and Charophyta in the shallow mesocosms. In contrast, phytoplankton communities were more similar to each other in the low nutrient treatments; only Chlorophyta had generally a higher biovolume in the shallow compared to the deep mesocosms. These results suggest that ecosystem size is not only a determinant of species diversity, but that it can mediate the influence of anthropogenic effects on biodiversity. Such interactions increase the uncertainty of global change outcomes, and should therefore not be ignored in risk/impact assessment and management.



PlumX Metrics


Download data is not yet available.


Supporting Agencies

EU FP-7 Theme 6 project REFRESH, August T. Larsson foundation, Swedish Research Councils Formas (2014-1193) and VR (2014-5828)

How to Cite

Baho, Didier L., Stina Drakare, Richard K. Johnson, Craig R. Allen, and David G. Angeler. 2016. “Is the Impact of Eutrophication on Phytoplankton Diversity Dependent on Lake volume/Ecosystem Size?”. Journal of Limnology 76 (1).

Similar Articles

1 2 3 > >> 

You may also start an advanced similarity search for this article.

List of Cited By :

Crossref logo