Human-induced climate change has already had a major impact on Earth’s biodiversity. The habitat of many species – including those in the oceans – Is disappearing, and invasive species are conquering new regions. In a comprehensive data analysis, a team of researchers from Bremen and Oldenburg has studied how species communities in the North Atlantic have changed over a period of 24,000 years – since the last ice age. As expected, species have migrated northward, but new communities have also formed – and even after temperatures stabilized. The results have now appeared in the journal Nature Ecology & Evolution.