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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Quercus agrifolia | Coast Live Oak
 

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FIRE ECOLOGY

SPECIES: Quercus agrifolia | Coast Live Oak
FIRE ECOLOGY OR ADAPTATIONS : Coast live oak is the most fire resistant of all California oaks. Adaptations to fire include evergreen leaves, thick bark, and sprouting. Evergreen leaves allow coast live oak to allocate greater amounts of energy to regeneration than to leaf growth. Evergreens are often better able to conserve available nutrients than deciduous species, and are favored in fire-prone settings [52]. Coast live oak bark is mainly composed of live inner bark with little dead outer tissue [68]. The vascular cambium is usually protected. Even where heavily charred, damage typically extends only 0.5 to 0.8 inch (1.3-1.9 cm) into the bark [67]. Because of this, trees are often able to survive crown fire. Trees may sprout from the main trunk and upper crown even after severe burning [68]. When trees are top-killed, they sprout from the root crown [22,66]. Vigorous sprouting is supported by food reserves stored in the extensive root system [19]. Historically, the woodlands in which these trees are prominent burned frequently. Vogl [85] estimates a frequency of approximately one fire per year in grassland savannas and coastal foothills. Fire ecology: These oaks generate a deep litter layer except on steep slopes [39]. Leaves contain large amounts of flammable ether extracts [75]. POSTFIRE REGENERATION STRATEGY : Tree with adventitious-bud rootcrown/ soboliferous species root sucker Tall shrub, adventitious-bud rootcrown Ground residual colonizer (onsite, initial community) Secondary colonizer - offsite seed

Related categories for Species: Quercus agrifolia | Coast Live Oak

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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