Arctic Plants in a Changing Climate

Based on an analysis of extensive plant survey data across the Arctic, this research investigates how plant diversity is changing in response to rapid warming. Findings indicate that while overall species richness has not shown a directional change over time despite the Arctic warming significantly faster than the global average, species composition is undergoing widespread turnover. This means that many areas are experiencing both the gain and loss of different plant species, particularly in areas with stronger warming trends. Notably, the expansion of shrubs, especially erect varieties, is linked to decreased species richness and increased species losses, suggesting a significant impact of competition. Despite these local shifts in composition, there is currently no evidence of Arctic-wide biotic homogenization.Source: García Criado, M., Myers-Smith, I.H., Bjorkman, A.D. et al. Plant diversity dynamics over space and time in a warming Arctic. Nature (2025). https://doi.org/10.1038/s41586-025-08946-8