Marjolein is an evolutionary ecologist, with broad interests in host-microbe interactions, life history evolution and population ecology. Her research integrates theory with empirical research. Marjolein completed my PhD at Radboud University Nijmegen in 2019, on the importance of genetic variation and plasticity in, amongst others, water fleas.

For her post-doctoral research at Princeton University, she became interested in the microbiome, and in particular in the role of the microbiome in host evolution. In 2022, Marjolein joined the department of Evolutionary and Population Biology as an assistant professor, further developing her research line on microbiome contributions to host performance and adaptation.