Additive partitioning of testate amoeba species diversity across habitat hierarchy within the pristine southern taiga landscape (Pechora-Ilych Biosphere Reserve, Russia)

Tsyganov, A.N.; Komarov, A.A.; Mitchell, E.A.; Shimano, S.; Smirnova, O.V.; Aleynikov, A.A.; Mazei, Y.A.

Авторы: Tsyganov A.N., Komarov A.A., Mitchell E.A.D, Shimano S., Smirnova O.V., Aleynikov A.A., Mazei Yu A.
Журнал: European Journal of Protistology
Том: 51
Год издания: 2015
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 42
Последняя страница: 54
DOI: 10.1016/j.ejop.2014.11.003
Аннотация: In order to better understand the distribution patterns of terrestrial eukaryotic microbes and the factors governing them,we studied the diversity partitioning of soil testate amoebae across levels of spatially nested habitat hierarchy in the largestEuropean old-growth dark coniferous forest (Pechora-Ilych Biosphere Reserve; Komi Republic, Russia). The variation in testateamoeba species richness and assemblage structure was analysed in 87 samples from six biotopes in six vegetation types using anadditive partitioning procedure and principal component analyses. The 80 taxa recorded represent the highest value of speciesrichness for soil testate amoebae reported for taiga soils so far. Our results indicate that testate amoeba assemblages were highlyaggregated at all levels and were mostly controlled by environmental factors rather than dispersal processes. The variation inspecies diversity of testate amoebae increased from the lowest to the highest hierarchical level. We conclude that, similarly tomacroscopic organisms, testate amoeba species richness and community structure are primarily controlled by environmentalconditions within the landscape and suggest that metacommunity dynamics of free-living microorganisms are driven by speciessorting and/or mass effect processes.
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Additive partitioning of testate amoeba species diversity across habitat hierarchy within the pristine southern taiga landscape (Pechora-Ilych Biosphere Reserve, Russia)статья Исследовательская статья

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