Past management has reduced the abundance of some minority tree species. Promoting these species requires an understanding of their ecological requirements.
Introduction
Minority tree species are less abundant species that typically occur as scattered individuals or in small patches within mixed stands. Past silvicultural management has often reduced their abundance in managed forest stands. Although they often make up only a small proportion of forest cover, minority tree species can improve structural and species diversity, provide high-value timber, and other important ecosystem services. However, many rare tree species are light-demanding and face strong competition from more dominant tree species. Thus, active management is often needed to maintain them in mixed stands. Silvicultural measures should therefore consider species-specific ecological requirements, including the conditions needed for successful regeneration.