European Sempervivum tectorum soil pH and iButton soil temperature time series measurement raw data.

Ecogeographical displacement of homoploid hybrid lineages from their parents is well documented and considered an important mechanism to achieve reproductive isolation. In this study, we investigated the origin of the flowering plant species Sempervivum tectorum in the Massif Central (France) through homoploid hybridization between lineages of the species from the Rhine Gorge area (Germany) and the Pyrenees (France). We used genotyping-by-sequencing genetic data as evidence for the hybrid origin of the Massif Central lineage, and WorldClim climatic data and soil pH and soil temperature data collected by us for ecological niche and species distribution modelling. We could show that the Massif Central lineage is of homoploid hybrid origin, and that the niche of this lineage is significantly different from those of the parental lineages. In comparison to the parental niches, different variables of the niche of the hybrid lineage are intermediate, parental combined or extreme. The different...