All forest health factors detected through aerial surveys by region. Data is the number of hectares affected (all severity classes combined)
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Bark Beetles |
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Disturbance Type |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
|
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IBM=Mountain Pine Beetle |
not available |
not available |
not available |
42802 |
39551 |
31,541 |
66,439 |
|||
IBS=Spruce Beetle |
not available |
not available |
not available |
1 |
15524 |
46,335 |
76,083 |
|||
IBB=Western Balsam Bark Beetle |
not available |
not available |
not available |
0 |
19163(1) |
304,393 |
380,662 |
|||
IBD=Douglas-fir Beetle |
not available |
not available |
not available |
19 |
5923 |
591 |
2,087 |
|||
IBI=Engraver Beetles |
not available |
not available |
not available |
0 |
0 |
0 |
0 |
|||
IBW=Western Pine Beetle |
not available |
not available |
not available |
0 |
0 |
0 |
0 |
|||
Total All Bark Beetles |
not available |
not available |
not available |
42,822 |
80,161 |
382,860 |
382,860 |
|||
(1) Reported only by Ft. St. James & Prince George Districts |
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Defoliators |
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Disturbance Type |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
|
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ID=Defoliators |
0 |
0 |
0 |
0 |
0 |
265 |
0 |
|||
IDH=Western Blackheaded Budworm |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
IDB=2-Year Budworm |
8,000 |
58,000 |
78,310 |
400,000 |
145,196(2) |
795,041 |
615,749 |
|||
IDE=Spruce Budworm |
0 |
0 |
0 |
0 |
0 |
1,265,965 |
1,575,072 |
|||
IDL=Western Hemlock Looper |
0 |
0 |
0 |
0 |
0 |
2,426 |
406 |
|||
IDS=Conifer Sawflies |
0 |
|
|
|
|
1,418 |
0 |
|||
IDK=Northern Tent Caterpillar |
|
|
|
|
|
0 |
0 |
|||
IDF=Forest Tent Caterpillar |
|
|
|
|
0 |
0 |
213,934 |
|||
IDW=Western Spruce Budworm |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
IDN=Birch Leaf Miner |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
IDU=Satin Moth |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
IAS=Green Spruce Aphid |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
Total Defoliators |
8,000 |
58,000 |
78,310 |
400,000 |
145,196 |
2,065,115 |
2,405,161 |
|||
(2) only Ft. St. James District reported on defoliation from 94-98 |
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Abiotic Factors |
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Disturbance Type |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
|
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NB=Fire |
|
|
|
|
|
6,691 |
4,562 |
|||
NW=Windthrow |
|
|
|
|
|
602 |
109 |
|||
ND=Drought |
|
|
|
|
|
0 |
0 |
|||
NF=Flooding |
|
|
|
|
|
0 |
380 |
|||
NR=Red Belt |
|
|
|
|
|
0 |
0 |
|||
NGK=Shoot/Bud Frost Kill |
|
|
|
|
|
0 |
0 |
|||
Total Abiotics |
|
|
|
|
|
7,293 |
5,052 |
|||
|
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Diseases |
||||||||||
Disturbance Type |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
|
||||||||||
DFL=Pine Needle Cast |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
0 |
0 |
|||
DRA=Armillaria Root Disease |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
0 |
0 |
|||
DMP=Lodgepole Pine Dwarf Mistletoe |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
2 |
0 |
|||
DSB=White Pine Blister Rust |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
0 |
0 |
|||
DFH=Larch Needle Cast |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
0 |
0 |
|||
Total Diseases= |
not recorded |
not recorded |
not recorded |
not recorded |
not recorded |
2 |
0 |
|||
|
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Animals |
||||||||||
Disturbance Type |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
|
||||||||||
AB=Bear |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
AP=Porcupine |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
|||
AD=Deer |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|||
Total Animals |
0 |
0 |
0 |
0 |
0 |
2 |
0 |
|||
|
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Total Other (Abiotics, Diseases, Animals) |
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|
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|||
495,344 |
556,793 |
897,211 |
174,364 |
1,945 |
7,294 |
5,052 |
||||
|
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Overall Total For Each Year |
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1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
||||
697,091 |
619,951 |
980,076 |
412,269 |
225,784 |
2,455,270 |
2,935,484 |
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