Session

Schönswetter will provide insights into current research on the biogeography of European extrazonal steppes and the evolution of their biota. He will first present a biome-wide approach illustrating the divergence of extrazonal lineages of widespread steppe species and then focus on the change of their population sizes through time. He will then present new insights into disjunctly distributed and endangered Astragalus section Caprini and finish with the unexpected spatiotemporal diversification of Astragalus exscapus, a strongly declining steppe species endemic to Europe.