Volunteer Highlight: Bruce Rucker

Meet Bruce Rucker, a longtime Sausal Creek watershed resident who spent many hours this summer clearing vegetation from around our endangered pallid manzanitas, braving the heat and numerous poison oak outbreaks. His work means more sunlight and airflow for the plants, and makes these rare populations easier to navigate and protect. 

FOSC: What is your connection to the Sausal Creek watershed, and what drew you specifically to working with the pallid manzanitas?

Bruce: My family and I have lived in the Sausal Creek watershed for over 30 years, and my career as a hydrogeologist has given me deep insight into the workings and vulnerabilities of this special habitat.

I was drawn to the FOSC pallid manzanita restoration and management effort when looking for an environmental stewardship project as part of the California Naturalist certificate program. I was surprised to learn that pallid manzanitas are endemic to such a small geographic area with a high concentration in the Sausal Creek watershed, and that FOSC is the primary steward of their well-being.

FOSC: What is something you’ve learned or noticed about the pallids or the ecosystem they’re part of?

Bruce: I've learned that one of the primary challenges that pallid manzanitas face is their biological dependence on a very narrow range of climate and soil conditions. It is ironic that the pallids' favored mechanism of seed germination is wildfire, which of course is aggressively suppressed in our wildlife-urban interface. 

While FOSC has demonstrated great success propagating and replanting pallid manzanitas from cuttings, that technique doesn't foster genetic diversity. My hope is that ongoing research will identify supplemental methods for encouraging seedlings. Perhaps the dusky-footed woodrats, which carry seeds to their burrows, will prove to be instrumental!

I'm also hopeful that some bright young plant geneticist will discover a cure for the "plant destroyer" pathogen, Phytophthora ramorum, which poses the most direct threat to pallid manzanitas.

FOSC: Are there any moments that have stood out from the hours you’ve spent this summer working with the pallids?

Bruce: While our pallid manzanita stands are in a densely populated region, and in fact are in very close proximity to well-traveled hiking trails, I often find myself in blissful solitude while tending them. There are few more satisfying moments for me than freeing pallid manzanita branches from morning glory vines and removing poison oak from beneath them!

I encourage everyone to participate in the FOSC efforts to save these iconic plants, which are truly a local wonder in our watershed.