new stands of species of the paramecium aurelia complex in yakutia, russia. | paramecium is one of the most studied genera among ciliates. in particular, it is a model organism for investigation of the sibling species problem (also known as the cryptic species problem), spatial distribution, and its role in speciation. the global distribution of paramecium species and of sibling species belonging to the p. aurelia species complex (ciliophora, protista) still need study, e.g. sampling in some territories has been quite limited, while europe has been investigated for years ... | 2015 | 26975144 |