With the GeneScale consortium, we develop landscape genomics on alpine populations of Arabis alpina by associating genetic variation and environmental heterogeneity characterized at high resolution. Multi-scale decomposition tackles the effective scale of natural selection.

With Kim Gilbert, we investigate the evolutionary consequences of population expansion on genomic variation in Arabis alpina. Integrating simulations of complex demographic scenarios with sequence data from several hundred field samples, we address the impact of selection and particularly the accumulation of deleterious mutations during climate-induced range expansion.