Research

Recent research highlights

Host outnumbered: microbiomes and a fungal parasite interact to shape host genotype-dependent survival

🔥 New preprint by Amruta

This study uses cutting-edge microbiome transplant experiments, revealing that microbiome composition impacts the outcome of host-parasite interactions through mediating host survival.

Rajarajan, A, Coone M, Wolinska J, Spaak P, Decaestecker E.

Published: January 2026, BioRxiv

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Linking Individual Performance to Density‐Dependent Population Dynamics to Understand Temperature‐Mediated Genotype Coexistence

New paper by Marjolein

Integrating Modern Coexistence Theory with stage-structured population modelling reveals the demographic mechanisms that underly rapid evolutionary responses in Daphnia.

Bruijning M, De Meester L, Visser M. D., Fossen E.I.F., Vanvelk H., Raeymaekers J.A.M., Govaert L., Brans K.I., Einum S., Jongejans E.

Published: September 2025, Ecology Letters

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Applying evolutionary theory to understand host–microbiome evolution

New ideas to study host-microbiome evolution using existing frameworks in Evolutionary Biology: Niche construction, indirect genetic effects, maternal effects and multilevel selection

Week B, Russell S, Schulenburg H, Bohannan B, Bruijning M

Published: September 2025, Nature Ecology & Evolution

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Research themes

Our research is centered around four major themes.

NWO Veni: Pathogens, microbiomes, and host evolution in a world of global change

In 2023, Marjolein was awarded a NWO Veni grant (news article on NWO page). The aim of this project is to unravel how the microbiome mediates responses to disease dynamics, utilizing the water flea Daphnia magna as a study system. The project integrates pathogen infection experiments and cutting-edge microbiome transplant experiments, with theory from community ecology, evolutionary biology and epidemiology.

Painting made by former student Julia van Duijn