In addition, cultural values may play important
roles in attitudes toward trees and tree species. Finally, novel
species assemblages in anthropogenic settings raise interesting
questions for ecosystem science, as the specific species composition of trees in Los Angeles resembles no other in the world,
though like in other cities, trees are likely to be impacted by air
pollution, watering and fertilizing, soil compaction and other urban
phenomena. Coupled with the extraordinary diversity in this region
of the world, how these forests function remains to be further
explored