Global patterns in the metacommunity structuring of lake macrophytes: regional variations and driving factors

Janne Alahuhta, Marja Lindholm, Claudia P. Bove, Eglantine Chappuis, John Clayton, Mary de Winton, Tõnu Feldmann, Frauke Ecke, Esperança Gacia, Patrick Grillas, Mark V. Hoyer, Lucinda B. Johnson, Agnieszka Kolada, Sarian Kosten, Torben Lauridsen, Balázs A. Lukács, Marit Mjelde, Roger P. Mormul, Laila Rhazi, Mouhssine RhaziLaura Sass, Martin Søndergaard, Jun Xu, Jani Heino

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

We studied community–environment relationships of lake macrophytes at two metacommunity scales using data from 16 regions across the world. More specifically, we examined (a) whether the lake macrophyte communities respond similar to key local environmental factors, major climate variables and lake spatial locations in each of the regions (i.e., within-region approach) and (b) how well can explained variability in the community–environment relationships across multiple lake macrophyte metacommunities be accounted for by elevation range, spatial extent, latitude, longitude, and age of the oldest lake within each metacommunity (i.e., across-region approach). In the within-region approach, we employed partial redundancy analyses together with variation partitioning to investigate the relative importance of local variables, climate variables, and spatial location on lake macrophytes among the study regions. In the across-region approach, we used adjusted R2 values of the variation partitioning to model the community–environment relationships across multiple metacommunities using linear regression and commonality analysis. We found that niche filtering related to local lake-level environmental conditions was the dominant force structuring macrophytes within metacommunities. However, our results also revealed that elevation range associated with climate (increasing temperature amplitude affecting macrophytes) and spatial location (likely due to dispersal limitation) was important for macrophytes based on the findings of the across-metacommunities analysis. These findings suggest that different determinants influence macrophyte metacommunities within different regions, thus showing context dependency. Moreover, our study emphasized that the use of a single metacommunity scale gives incomplete information on the environmental features explaining variation in macrophyte communities.

Original languageEnglish (US)
Pages (from-to)1167-1182
Number of pages16
JournalOecologia
Volume188
Issue number4
DOIs
StatePublished - Dec 1 2018

Bibliographical note

Funding Information:
Acknowledgements Open access funding provided by University of Oulu including Oulu University Hospital. JA appreciates financial support from the Ella and Georg Ehrnrooth Foundation. BAL was supported by National Research, Development and Innovation Office—NKFIH, OTKA PD120775 Grant and by the Bolyai János Research Scholarship of the Hungarian Academy of Sciences. S.K. was supported by NWO Veni grant 86312012. Sampling of the coastal

Funding Information:
Brazilian lakes was financed by NWO grant W84-549; The National Geographic Society grant 7864-5; and CNPq grants 480122, 490409, 311427. We thank the SALGA team, especially Gissell Lacerot, Nestor Mazzeo, Vera Huszar, David da Motta Marques, and Erik Jeppesen for organizing and executing the SALGA field sampling campaign and Bruno Irgang† and Eduardo Alonso Paz for help with identification. We thank Minnesota and Wisconsin Departments of Natural Resources for collecting the macrophyte data. We are especially grateful to Carol Reschke, University of Minnesota Duluth, for her work in combining and performing quality control for the Minnesota macrophyte data used in the analysis. This is contribution no. 607 of the Natural Resources Research Inst. of the Univ. of Minnesota Duluth. Provision of New Zealand macrophyte data was possible via NIWA SSIF funding.

Publisher Copyright:
© 2018, The Author(s).

Keywords

  • Aquatic plants
  • Biogeography
  • Community structure
  • Elevation range
  • Environmental filtering
  • Hydrophytes
  • Metacommunity ecology
  • Spatial processes
  • Spatial variation

PubMed: MeSH publication types

  • Journal Article

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