Ecological differentiation of Senecio by ploidy is stronger in areas of sympatry
Characterizing ecological niches via Landolt indicator values of accompanying species, Sonnleitner et al. found that niches of four groups (two diploids, one tetraploid, one hexaploid) of Senecio carniolicus s.l. (Asteraceae) differed with respect to temperature, light and soil properties, but not in their breadths.