A historic West Marin conservation nonprofit, Audubon Canyon Ranch, has rebranded itself to reflect its expanding mission and distance itself from a 19th-century naturalist who had slaves. The group’s new name, All Hands Ecology, signals its effort to engage more people in the stewardship of local ecosystems, the protection of at-risk species and the improvement of climate resiliency. “We wanted our name, like our relationships, to reflect the ecosystems we care for—diverse, interdependent and full…