Why 3 small “replacement” trees can’t replace
an ecosystem
The cornerstone of UC Berkeley’s PR spin on the oaks is to talk about replacing each destroyed tree with three small saplings. But the Memorial Oak Grove is a complex Coast Live Oak ecosystem. Killing the existing trees would decimate that established ecosystem.
Furthermore, careful analysis of the “3 for 1” replacement scheme reveals how totally in-effective the replacement proposal is. For instance, large Oak trees can have tens of thousands of leaves in their canopy habitat area, while UC’s small replacement saplings would typically only have 50 to 100 leaves. These native oaks can provide habitat for hundreds of animal and insect species. So just in terms of the Biomass of a tree that provides habitat, three small trees is nowhere near as valuable as one mature oak.
3 to1 UPDATE -
UC recently revealed, that in fact, they do not even intend to replace the oaks 3 to 1. At a UC regents meeting, chancellor Ed Denton disclosed that UC would only replant with 25% native oaks. This is yet another example of the university saying one thing in public and then doing another.
It is also important to remember that many of the “replacement” saplings will not survive. It is typical for a third of the “replacement” trees to die within a year or two of being planted.
Native California Oak woodlands are a crucial component of our natural environment, supporting higher levels of bio-diversity than any other terrestrial ecosystem in California. Over 300 vertebrates and thousands of other plant and insect species depend on California Oak woodland ecosystems for their survival.












