Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
SlideshowReport

Prescribed burn in Pukaskwa National Park.

Description
Periodic, controlled human-made fires mimic the sporadic wildfires that normally burn natural areas. Such fires are vital to the health of fire-dependent jack pine and white pine populations, since they serve to open the pine cones and release the seeds.
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1301 People Browsing
 104 Signed Up Today
Your Opinion
Who's your favorite biologist?
Votes: 586