[color=#000000
ost_uid0]With a big, hot fire, they [i
ost_uid0]all[/i
ost_uid0] burn very nicely, but a healthy, live tree will generally survive a smaller fire quite well. In fact, some species, such as redwoods and Jefferson pine, [i
ost_uid0]require[/i
ost_uid0] a fire to cause the cones to open and release the seeds that sprout into new trees.
The beetles, however, have become a major problem in the western US and Canada, leading to forests in which a significant proportion of the trees are either [i
ost_uid0]not[/i
ost_uid0] healthy or just plain [i
ost_uid0]dead[/i
ost_uid0].
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ost_uid0]