Community stability is linked to changes in animal diversity. By studying various animal groups in the US, researchers found that stability increases when species are replaced over time, but decreases with changes in species richness and evenness. Fluctuations in species abundance can help stabilize communities. Additionally, communities are most stable when there is either low or high change in functional composition compared to taxonomic composition. This suggests that communities can remain stable through fluctuations in functionally similar species, even with reshuffling of species. The study highlights the importance of understanding how biodiversity changes affect community stability.