Ron Russo

Ron Russo retired as the chief naturalist of the East Bay Regional Park District in 2003 and is the author of several field guides, including Plant Galls of California and Other Western States (UC Press, 2007). He continues his writing and research, discovering several new species of plant galls each year.
urchin galls

Call of the Galls


Standing sentinel near the highest point in the East Bay Regional Park District, an ancient blue oak is our window into a spectrum of life in the orbit of one grand tree.

Peering into Muddy Waters


One measure of the ecological richness of the Bay is its role as a major nursery for five resident species of sharks.