FIRE ECOLOGY
SPECIES: Pinus jeffreyi | Jeffrey Pine 



FIRE ECOLOGY OR ADAPTATIONS : 
Jeffrey pine shares many of the same ecological adaptations to fire as
Pacific ponderosa pine.  Pryor [34] classified Jeffrey pine as being
moderately resistant to fire.  It has a thick, corky bark that
withstands high temperatures and has a tall, erect bole free of lower
limbs.  The buds develop thick scales able to withstand considerable
amounts of heat [44].  Jeffrey pine seedlings have also adapted to
reproducing well on bare mineral soil.  Lightning is common in the
Sierra Nevada and strongly influences Jeffrey pine through wildfires
[22,27].  Generally, Jeffrey pine is an early-seral species on burned
sites, eventually being replaced by more tolerant tree species.  A
postfire succession study from the Donner Ridge burn, Sierra Nevada,
California, found Jeffrey pine as an early colonizer eventually being
replaced by white fir [6].



POSTFIRE REGENERATION STRATEGY : 
   off-site colonizer; seed carried by wind; postfire years 1 and 2
   off-site colonizer; seed carried by animals or water; postfire yr 1&2

Related categories for Species: Pinus jeffreyi | Jeffrey Pine