Graduate Position:UGraz_Austria.AmphipodBehavioralEcology PhD position in behavioral ecology / evolutionary biology at the University of Graz, Austria We are looking for a PhD student interested in behavioral ecology and evolutionary biology to study the co-existence of cryptic species of the freshwater amphipod Gammarus fossarum. The focus of the PhD research lies on reproductive isolation between the cryptic species, which will be studied in the lab and in the field. Methods include field work, genetic analyses and behavioral experiments. The PhD position is embedded in a joint Austrian-Czech project (University of Graz, Charles University of Prague and University of Ostrava), which also involves studies of competitive interactions, trophic differentiation, functional morphology and parasitism, and offers opportunities for lab rotations and participations in different areas of the project. Formal requirements include a Master's degree in biology or closely related field, and an excellent command of English. Applicants should have a strong interest in animal behavior, evolution and ecology. The field work requires a car driving license (and experience with manual gear shift). The PhD research will be supervised by Univ. Prof. Kristina Sefc. The position is funded by the Austrian Science Fund (FWF) for a duration of three years, starting in spring 2026, with a net salary of approx. 28,000 euro per year. Graz is an attractive mid-sized city in south-eastern Austria and is appreciated for affordable living, pleasant climate, convenient distance to the Alps and the Adriatic Sea and ample opportunities for outdoor activities in its close surroundings. Please email applications to Dr. Kristina Sefc (kristina.sefc@uni-graz.at), and send a pdf file including a statement of research interests and expertise, a CV, list of publications and presentations, and contact information of 2-3 references. Shortlisted candidates will get more details about the project and will be invited for an informal online interview. "Sefc, Kristina (kristina.sefc@uni-graz.at)" (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)