Open space is for native wildlife and plants. (Even though alien plants take over)
Open space allows for animals to migrate and plants survive. San Diego is a horrible place to see this in use. Developers are always swapping open spaces and the government fails to have a real plan. Go to places like Portland and you see smaller open spaces all over with beavers and birds in them.
You can go to places like Torrey Pines and see deer all the time, and I hear there are mountain lions in Torrey Pines sometimes. A good open space plan will allow animals like deer and mountain lions to migrate to the coast and allow development as well.
The best open space plan in the county is the USMC.
