The annual Plant Population Biology conference of the Ecological Society of Germany, Austria and Switzerland of 2020 was postponed to 2021, and due to Covid-19 pandemic, took place as a fully virtual conference on 26-29 May. Iris and Tsipe participated in the conference. Tsipe gave a talk about the results of the citizen science campaign of cowslips. Our former colleague Sabrina gave a poster presentation about the adaptive and neutral genetic diversity in open and overgrown alvar grasslands.