Abstract
The snailCepaea vindobonensis, which is polymorphic for the number of bands on the shell and for intensity of band pigmentation, was studied in an area of steppe in Eastern Romania. There are marked geographical variations in phenotype frequency which, unlike the similar variation found in populations from mountainous areas, show no detectable associations with any easily identifiable component of the environment. These patterns of variation may be due to selection by cryptic ecological factors or to a balance between climatic selection and selection by the “genetic environment” of the population.
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Jones, J.S. The genetic structure of some steppe populations of the snailCepaea vindobonensis (Pf.). Genetica 45, 217–225 (1975). https://doi.org/10.1007/BF01517198
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DOI: https://doi.org/10.1007/BF01517198