Plankton is a basis of marine life, contributing nearly 50% to global primary production and playing a significant role in climate regulation due to carbon sequestration and formation of clouds. Yet, ongoing climate change strongly affects biodiversity and functioning of plankton communities by altering their metabolism and leading to geographical redistribution of species. The Plankton Biodiversity Lab led by Aleksandra Lewandowska focuses on interactions in plankton communities. We are interested in biodiversity patterns within and between trophic levels, species coexistence and predator-prey dynamics across multiple temporal scales.