Marianne Kaldra, who has been in our work group since her bachelor's studies, will continue in our working group as a doctoral student. Marianne's research interests include the effects of landscape changes on biodiversity, plant reproductive characteristics and related genetic diversity. She pays special attention to heterostyly with cowslip (Primula veris) as her study species. Her supervisor is Tsipe. In addition, she also helps to organize the citizen science campaign "Looking for cowslip".