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Wildlife, Animals, and Plants |
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FIRE ECOLOGYFIRE ECOLOGY OR ADAPTATIONS:The thin bark of young limber pine trees does not protect them from even low-severity fires. Because the bark at the base of older trees is often 2 inches (5 cm) thick, these trees can withstand stem scorch from low-severity fires. Terminal buds are somewhat protected from the heat associated with crown scorch by the tight clusters of needles around them [1,29,53,85,127]. Wildfires are less frequent in limber pine communities than in other conifer habitats because of limited productivity and fuel accumulation associated with poor soil development, short growing seasons, and late snowmelt [29,53,78,85,96,117,127]. Keeley and Zedler [53] categorized 38 pines within a series of 5 fire predictability regimes. They include limber pine among those pines growing in areas with very low site (and therefore fuel) productivity and unpredictable fire return intervals of up to 1000 years. Where enough biomass accumulates to carry fires, limber pine may be cached by Clark's nutcrackers and establish in burned sites previously dominated by other conifers [53,66]. Where limber pine grows in association with other trees, the fire regimes of those species are relevant. Fire regimes for some associated communities or ecosystems are listed here:
**mean
POSTFIRE REGENERATION STRATEGY [105]:Initial offsite colonizer (off-site, initial community) Secondary colonizer (on-site or off-site seed sources)
Related categories for SPECIES: Pinus flexilis | Limber Pine |
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