Christopher Ruedy
Bald Hill Broom Bust
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- Mt. Tam hosts over 750 native plant species that make up rich array of native plant communities. These communities, and their arrangement on the landscape, are the foundation of ecosystem health.
- Each ecological community or ecosystem roll-up was created by aggregating all of the vegetation and wildlife metrics from individual indicators that were pertinent to that ecosystem. Each individual metric has its own condition, trend, and confidence level as already determined in the individual indicator assessments.
- Why Was This Indicator Chosen? Open-canopy oak woodlands on Mt. Tam are characterized by the presence of long-lived acorn-producing trees from the genus Quercus.
- Why Was This Indicator Chosen? Chaparral—the most widespread and characteristic type of shrubland in California—is dominated by hard-leaved evergreen shrubs such as chamise, manzanita, an
- Why Was This Indicator Chosen? Coast redwoods are the definition of resiliency. Among the tallest trees in the world, individual redwoods may live as long as 2,000 years.
- Why Was This Indicator Chosen? Grassland ecosystems are dominated by both perennial and annual herbaceous plants, with little to no trees or shrubs.
- Why Was This Indicator Chosen? Serpentinite, California’s state rock, creates serpentine soils, which are characterized by low amounts of calcium, high amounts of magnesium, relatively he
- Why Was This Indicator Chosen? Sargent cypress (Hesperocyparis sargentii) communities occur as open, scrubby forests and woodlands associated with serpentine chaparral.
- Why Was This Indicator Chosen? The part of Tam that receives a marine influence (in the form of persistent summer fog) is home to maritime chaparral, a type of chaparral that is associate
- What We Know Over 40 rare plants are currently known from within the One Tam area of focus.
- Summary The health of the biodiversity of Mt. Tam is represented by a collection of key taxonomic groups.
- Sudden Oak Death Sudden Oak Death (SOD), caused by the introduced pathogen Phytophthora ramorum, was first documented in the United States on Marin Municipal Water District and S
- Climate Change on Mt. Tam Mt.