Do the ecological drivers of lake littoral communities match and lead to congruence between organism groups?
Tolonen, K. T., Karjalainen, J., Hämäläinen, H., Nyholm, K., Rahkola-Sorsa, M., Cai, Y., & Heino, J. (2020). Do the ecological drivers of lake littoral communities match and lead to congruence between organism groups?. Aquatic Ecology, 54(3), 839-854. https://doi.org/10.1007/s10452-020-09781-x
Julkaistu sarjassa
Aquatic EcologyTekijät
Päivämäärä
2020Tekijänoikeudet
© The Authors 2020
Lake littoral environments are heterogeneous, and different organisms typically show specific responses to this environmental variation. We examined local environmental and spatial factors affecting lake littoral biodiversity and the structuring of assemblages of phytoplankton, zooplankton and macroinvertebrates within and among three basins of a large lake system. We explored congruence of species composition and species richness among the studied organism groups to evaluate their general indicator potential to represent spatial variation in other groups. We expected that effects of water chemistry on plankton assemblages were stronger than effects of habitat characteristics. In contrast, we anticipated stronger effects of habitat on macroinvertebrates due to their mainly benthic mode of life. We also expected that within-basin spatial effects would be strongest on macroinvertebrates and weakest on phytoplankton. We predicted weak congruence in assemblage composition and species richness among the organism groups. Phytoplankton assemblages were mainly structured by the shared effects of water chemistry and large-scale spatial factors. In contrast to our expectations, habitat effects were stronger than water chemistry effects on zooplankton assemblages. However, as expected, macroinvertebrate species composition and richness were mainly affected by habitat conditions. Among-group congruence was weak for assemblage composition and insignificant for richness. Albeit weak, congruence was strongest between phytoplankton and zooplankton assemblages, as we expected. In summary, our analyses do not support the idea of using a single organism group as a wholesale biodiversity indicator.
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Julkaisija
SpringerISSN Hae Julkaisufoorumista
1386-2588Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/41570005
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Euroopan komissioRahoitusohjelmat(t)
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
Open access funding provided by Finnish Environment Institute (SYKE). Authors acknowledge the technical staff of the University of Joensuu for their help in the field sampling. We also thank Maa-ja Vesitekniikan tuki ry (Grant No. 13-7883-20), Academy of Finland, Maj and Tor Nessling Foundation, the EU Project FRESHABIT LIFE IP (LIFE14 IPE/FI/023) and the Youth Innovation Promotion Association CAS (2020316) for financial support of this study. ...Lisenssi
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