Tree encroachment may lead to functionally-significant changes in peatland testate amoeba communities

Richard J Payne, Angela Creevy, Elena Malysheva, Joshua Ratcliffe, Roxane Andersen, Andrey N Tsyganov, James Rowson, Katarzyna Marcisz, Malgorzata Zielinska, Mariusz Lamentowicz, Elena D Lapshina, Yuri Mazei

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Abstract

Climate change is likely to cause increased tree recruitment on open peatlands but we currently have little idea what consequences this vegetation change may have below-ground. Here we use transects across forested to open bog ecotones at three Russian peatland complexes to assess potential changes in the most abundant group of peatland protists – the testate amoebae. We show that the testate amoeba communities of forested and open bog are markedly different with a very abrupt boundary at, or near, the vegetation ecotone. Changes along our transects suggest that tree encroachment may reduce the trophic level of testate amoeba communities and reduce the contribution of mixotrophic testate amoebae to primary production. Our study strongly suggests that increased tree recruitment on open peatlands will have important consequences for both microbial biodiversity and microbially-mediated ecosystem processes.
Original languageEnglish
Pages (from-to)18-21
JournalSoil Biology and Biochemistry
Volume98
Early online date1 Jul 2016
DOIs
Publication statusE-pub ahead of print - 1 Jul 2016

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  • Student Theses

    Microbial controls on carbon fluxes in forest-to-bog restoration

    Author: CREEVY, A., 29 Jun 2020

    Supervisor: ROWSON, J. (Director of Studies) & JONES, C. (Supervisor)

    Student thesis: Doctoral Thesis

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    Cite this

    Payne, R. J., Creevy, A., Malysheva, E., Ratcliffe, J., Andersen, R., Tsyganov, A. N., Rowson, J., Marcisz, K., Zielinska, M., Lamentowicz, M., Lapshina, E. D., & Mazei, Y. (2016). Tree encroachment may lead to functionally-significant changes in peatland testate amoeba communities. Soil Biology and Biochemistry, 98, 18-21. https://doi.org/doi:10.1016/j.soilbio.2016.04.002