Arcella peruviana sp. nov. (Amoebozoa: Arcellinida, Arcellidae), a new species from a tropical peatland in Amazonia

Monika K. Reczuga*, Graeme T. Swindles, Łukasz Grewling, Mariusz Lamentowicz

*Corresponding author for this work

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    There has only been one study on the ecology of testate amoebae from Amazonian peatlands, despite Amazonia being a biodiversity hotspot of global importance. During analysis of litter samples from Aucayacu peatland, western (Peruvian) Amazonia, we discovered a testate amoeba with a distinct morphology unlike any other species reported previously. We describe a new species, Arcella peruviana, based on its distinct morphology, compare it to morphologically similar species and provide information about its ecology. This new species is characterised by a distinct cruciform aperture (diameter ranges between 12 and 17. μm) which is slightly invaginated. The test is small (height 43-57. μm) and polygonal in cross-section. Our discovery suggests the existence of an unknown diversity of testate amoebae in Amazonia. The absence of the new Arcella species in more intensively-sampled regions supports the view that protists have restricted distributions.

    Original languageEnglish
    Pages (from-to)437-449
    Number of pages13
    JournalEuropean Journal of Protistology
    Volume51
    Issue number5
    DOIs
    Publication statusPublished - 01 Oct 2015

    Keywords

    • Microbial diversity
    • Peatlands
    • Protist distribution
    • Rainforest
    • Testate amoebae
    • Tropics

    ASJC Scopus subject areas

    • Microbiology

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