Global functional shifts in trees driven by alien naturalization and native extinction

Key Points

• Functional shifts in tree species are driven by alien naturalization and native extinction, impacting biodiversity.
• Evidence shows that the presence of invasive species now correlates with shifts in native tree functions, altering ecosystem dynamics.
• Analysis of biogeographical data across various regions illustrates patterns of native extinction affecting tree species distributions.
• These findings highlight the urgent need to address the impacts of invasive species and habitat loss on ecosystems.