Vegetation and Biodiversity Management

The Marin County Open Space District is a leader in ecologically sound vegetation management.

MCOSD works to maintain biodiversity and reduce fire risk across 34 open space preserves spanning 16,000 acres.

Parks staff and fire crew removing acacia in Tiburon

2018–19 Vegetation and Biodiversity Annual Report

  • Enhanced collaboration with county and regional fire agencies on fuel reduction planning and project implementation.
  • Increased public awareness through fire preparedness letters sent to adjacent open space neighbors, and participation in community wildfire prevention events.
  • 800 goats grazed fire fuel near residential areas, in partnership with regional fire agencies and private land owners.
  • Removed invasive acacia threatening homes and habitat in Old St. Hilary's Preserve, in collaboration with Tamalpais fire crew.
  • Early Detection, Rapid Response program monitors and eradicates invasive plant species at beginning stages of infestation.
  • Getting to Zero by limiting herbicide to critical use only, and employing a variety of manual, non-toxic methods to manage diverse vegetation.

Read the 2018–19 Vegetation and Biodiversity Annual Report and Work Plan PDF

Open space preserve trail

Vegetation and Biodiversity Management Plan

The Vegetation and Biodiversity Management Plan (VBMP) for Marin County preserves provides comprehensive, long-term guidance for a science-based approach that will maintain the natural biodiversity of the vegetation within the preserves, maintain patrol, emergency and public access, and manage fuel loads to reduce the threat of natural and human-caused fires.

Adaptive stewardship adjusts to changing natural conditions, while working toward multiple goals. MCOSD works to control invasive species, reduce fire risk, and restore native habitat, adjusting tactics and plans based on science, research, and observations from the field. We aim to encourage the positive natural processes that will support diversity throughout open space ecosystems, from healthy soil to thriving plant and wildlife communities.

For questions about the Vegetation and Biodiversity Management program contact Vegetation and Fire Ecologist Sarah Minnick.