The researchers compared plant diversity in different types of forests on the Baekdudaegan Mountains in South Korea. They found 802 plant species in total, with oak and pine forests having the highest species richness. However, functional diversity did not show clear differences between forest types. This suggests that while the number of different plant species may vary, the types of functions plants perform in each forest type may be similar. Further research with more traits and environmental factors is needed to fully understand plant diversity in mountain ecosystems.