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Campanula thyrsoides is one of the few monocarpic perennials of temperate alpine mountain ecosystems and native to the European Alps and adjacent mountain ranges. Individuals are rare but locally abundant and the species is protected in most of the Alpine countries. The exceptionally yellow-flowering member of the Campanulaceae grows preferably in alpine meadows with a moderate disturbance regime...
Plants that live in fragmented landscapes, where populations are isolated from each other and in which long-distance dispersal is essential for colonization of empty sites, reproduction should be favoured by self-compatibility (Baker's law). Nevertheless, outcrossing mechanisms, such as self-incompatibility and dichogamy, are common in many species and are often maintained by inbreeding depression...
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