Yerba Buena Island stewardship and land management

YBI/TI Stewardship Program

Community stewardship takes a variety of forms on the islands.  The Yerba Buena Island/Treasure Island Stewardship Program strives to restore Yerba Buena Island’s native biodiversity and engage residents and the diverse Bay Area community to connect to nature on both islands and to participate in island ecological stewardship.    

Upcoming free public activities:

8th Annual Yerba Buena Island Bioblitz - April 25, 2025 from 2P-5P

Join TIDA, San Francisco Environment and the California Academy of Sciences for the 8th annual Yerba Buena Island Bioblitz!.

See full event information for the April 25th Bioblitz

Fall 2025 - 2nd Annual Yerba Buena Island natural areas walk

Join TIDA, SF Environment, and the California Native Plant Society-Yerba Buena Chapter for a walk exploring Yerba Buena Island's natural areas and native plant communities.

Winter 2025 - 2nd Annual Yerba Buena Island winter birding walk

Join TIDA, SF Environment, Golden Gate Bird Alliance and California Native Plant Society-Yerba Buena Chapter for a walk on YBI observing and identifying YBI's winter bird population.

View an EBird species checklist for the First Annual YBI Winter Bird Walk held 11/23/24.

Winter 2025 - Habitat Planting Day - Date TBD

A work party installing local native plants, removing invasive species and restoring natural habitat.  Sponsored by TIDA and San Francisco Environment.

Habitat Management Plan

TIDA is developing a long-term framework for restoration, enhancement and protection of Yerba Buena Island's precious natural areas.  The Yerba Buena Island Habitat Management Plan (YBI HMP) is a critical element of these efforts.

Read the YBI Habitat Management Plan

Current TIDA contractors Rubicon Programs, and Habitat Potential work in consultation with TIDA and San Francisco Environment in the field stewardship of vital YBI natural areas.

Commitment to biodiversity

At it's May 8, 2019 meeting the TIDA Board of Directors approved TIDA Board Resolution 19-13-05/08 affirming TIDA's commitment to the Citywide Biodiversity Vision adopted by the San Francisco Board of Supervisors in 2018.