The goal of this research was to explore a previously uninvestigated factor that may shape urban tree biodiversity over time,
namely the tree species available through nurseries. This method
can be applied to other cities, as the results reported here are
focused on Los Angeles County. There are many unknown factors
affecting urban tree biodiversity and how it may change over time.
The history and diversity of urban trees are important to understand as cities are increasingly interested in the use of ecosystem
services to be more sustainable