Université de Neuchâtel

Environmental DNA COI barcoding for quantitative analysis of protists communities: A test using the Nebela collaris complex (Amoebozoa;Arcellinida; Hyalospheniidae)

Kosakyan, Anush ; Mulot, Matthieu ; Mitchell, Edward A.D ; Lara, Enrique

In: European Journal of Protistology, 2015, vol. 51, no. 4, p. 311-320

Environmental DNA surveys are used for screening eukaryotic diversity. However, it is unclear how quantitative this approach is and to what extent results from environmental DNA studies can be used for ecological studies requiring quantitative data. Mitochondrial cytochrome oxidase (COI) is used for species-level taxonomic studies of testate amoebae and should allow assessing the community...

Université de Neuchâtel

Comparative ecology of vascular plant, bryophyte and testate amoeba communities in four Sphagnum peatlands along an altitudinal gradient in Switzerland

Koenig, Isabelle ; Feldmeyer-Christe, Elizabeth ; Mitchell, Edward AD

In: Ecological Indicators, 2015, vol. 54, p. 48-59

Monitoring tools are needed to assess changes in peatland biotic communities and ecosystem functions in response to on-going climate and other environmental changes. Although the responses of soil organisms and plants to ecological gradients and perturbations do not always correlate, peatland monitoring is mainly based on vegetation surveys. Testate amoebae, a group of protists, are important...

Université de Neuchâtel

Molecular phylogeny of euglyphid testate amoebae (Cercozoa: Euglyphida) suggests transitions between marine supralittoral and freshwater/terrestrial environments are infrequent

Heger, Thierry J. ; Mitchell, Edward A. D. ; Todorov, Milcho ; Golemansky, Vassil ; Lara, Enrique ; Leander, Brian S. ; Pawlowski, Jan

In: Molecular Phylogenetics and Evolution, 2010, vol. 55, no. 1, p. 113-122

Marine and freshwater ecosystems are fundamentally different regarding many biotic and abiotic factors. The physiological adaptations required for an organism to pass the salinity barrier are considerable. Many eukaryotic lineages are restricted to either freshwater or marine environments. Molecular phylogenetic analyses generally demonstrate that freshwater species and marine species segregate...