As part of a collaborative project on Resilient Ageing, we are inviting applications for a doctoral student position starting early autumn 2023 with a duration of 36 months. The doctoral project centres on using clonal model organisms to study ageing under benign and stressed (warming) conditions. You will use the water flea Daphnia (crustacean zooplankton) and the Amazon molly (Poecilia formosa, a clonal fish) as model systems and carry out experiments to quantify ageing trajectories under common-garden conditions. You will test the impact of genotype and warming on ageing. More specifically, in Daphnia you will contrast genotypes from urban and rural populations for their “pace-of-life” and associated ageing phenotypes under ambient and warming conditions. In the Amazon molly, you will compare genetic lineages with different behavioural types (i.e., bold vs. shy) for their ageing trajectories under ambient and warming conditions. While your research will in the first place be focused on phenotypic characterization, you will also collaborate in a molecular characterization of genomic pathways underlying resilient and early ageing, linking molecular pathways to phenotypes. In the Daphnia system, you will also be offered the possibility to manipulate microbiome composition through microbiome transplant experiments to study the impact of microbiome features on ageing. The project focuses on experimental work and collaborative efforts with teams at other Leibniz institutes in the context of a Leibniz Association Research Alliance on “Resilient Ageing”. The position is located at IGB in Berlin, at the department “Evolutionary and Integrative Ecology”.