Skip to main content


Dr. Dianna Thomback, presenter for the Natural Resources Defense Council, on a scientific review of the White Bark Pine and Bark Beetles effect on the white bark pine. Thombeck is a white bark pine specialist. She is also an expert on the dynamics between the Clark's Nutcracker and the White Bark Pine species. She explains that White Bark Pine is declining because of blister rust and Pine bark beetles.

small (250x250 max)
medium (500x500 max)
Large
Extra Large
large ( > 500x500)
Full Resolution
you wish to report:


...
Select the collections to add or remove from your search
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
 
OK