Coyote Ridge contains approximately 7000 acres of
nutrient-poor serpentine soil in
Moderate cattle grazing is effective management, because cattle prefer nitrogen-rich annual grasses and create open sites favored by native annuals. In 2006, annual grass cover averaged 24.6% at grazed sites, compared to 47.1% on nearby ungrazed sites. Annual forbs, including host and nectar plants for the butterfly, averaged 29.5% at the grazed site, and 8.1% at the ungrazed site.
Burning is effective for short-term reduction of annual grasses. The year following an accidental spring burn, annual grass cover was 37.4% on burned and 72.1% on adjacent unburned sites. Annual forb cover was 35% on burned and 7.5% on unburned plots.
A new threat to serpentine grassland is barb goatgrass (Aegilops triuncialis). This silica-rich grass is unpalatable to cattle and can invade even in the absence of nitrogen deposition. Treatment strategies include burning, herbicides, and mechanical control.