Recognizability of Sexual and Asexual Species of Rotifers

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Abstract
The total numbers of published synonymous species and genus names were counted for all species of bdelloid rotifers (which are exclusively parthenogenic) and monogonont rotifers (which occasionally reproduce sexually). Synonymous genus names are about equally frequent in both groups, but synonymous species names are less frequent in bdelloids than in monogononts. The difference is not a secondary effect of differences in time since first publication of species, effort or competence of systematists, size of genera, or taxonomic complexity of species. These results suggest that bdelloid species are more consistently recognized than monogonont species, contrary to predictions derived from aspects of the biological species concept and the punctuated equilibrium model of evolution.

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