Skip to main content
Log in

Ecological and biogeographical drivers of freshwater green algae biodiversity: from local communities to large-scale species pools of desmids

  • Community ecology – original research
  • Published:
Oecologia Aims and scope Submit manuscript

Abstract

Dispersal limitation, niche-based processes as well as historical legacies shape microbial biodiversity, but their respective influences remain unknown for many groups of microbes. We analysed metacommunity structure and functional trait variation in 148 communities of desmids, freshwater green algae, distributed throughout Europe. We delineated biogeographic modules for both taxa and sites using bipartite network analysis given that the taxa of a module co-occurred more often than expected by chance in sites of the same module. The network analysis distinguished two main acidic and neutral habitats, reflecting environmental filtering, and within each habitat separated species pools with distinct geographic locations, representing a plausible influence of historical biogeography. The geographic differentiation was consistent with a hypothesis of glacial refugia on Atlantic coast. Distance decay in community composition in addition to environmental influence further suggested a role of dispersal limitation. Next, we quantified the variation in cell volume and surface-to-volume of taxa within and among communities, to examine morphological and physiological adaptations of desmids in varying environments. Communities from continental climate contained larger desmids. Conversely, we found a functional convergence of smaller, fast-growing, desmids in oceanic regions. Overall, our findings suggest that niche-based processes, dispersal limitation, and historical legacy together drive the distribution and structure of desmid communities. Combining trait- and network-based analyses can resolve long-lasting questions in microbial ecology and biogeography, and could be successfully used in macrobial ecology too.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgements

Financial support for this study was provided by the Charles University Science Foundation (Project B Bio 599912/2012). CV was supported by the European Research Council (ERC) Starting Grant Project “Ecophysiological and biophysical constraints on domestication in crop plants” (Grant ERC-StG-2014-639706-CONSTRAINTS). We are grateful to anonymous reviewers for constructive comments.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Helena Bestová.

Ethics declarations

CV and HB originally formulated the idea. CV and FM developed the methodology. HB and PS conducted fieldwork and data sampling. HB, CV, FM performed analyses, and HB, CV, FM, PŠ wrote the manuscript.

Additional information

Communicated by Ulrich Sommer.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 797 kb)

Supplementary material 2 (XLSX 187 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bestová, H., Munoz, F., Svoboda, P. et al. Ecological and biogeographical drivers of freshwater green algae biodiversity: from local communities to large-scale species pools of desmids. Oecologia 186, 1017–1030 (2018). https://doi.org/10.1007/s00442-018-4074-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00442-018-4074-x

Keywords

Navigation