Statistical data

1. Select area

2. Select year

Disturbance (Newfoundland and Labrador)
	2021	2020	2019	2018	2017	2016	2015	2014	2013	2012	2011	2010	2009	2008	2007	2006	2005	2004	2003	2002	2001	2000	1999	1998	1997	1996	1995	1994	1993	1992	1991	1990
Insects ^{Footnote 1}
Area defoliated by insects and containing beetle-killed trees (hectares)		3,533		650	1,873	38,417	85,921	100,689	64,884	61,333	75,824	99,772	99,105	71,300	71,300	80,050	57,845	58,384	79,899	132,985	76,504	53,374	35,121	31,904	40,128	44,369	27,583	12,900	8,750	13,500	28,560	16,180
Balsam fir sawfly		55							1,492	536	12,937	4,709	8,945	39,400	39,400	67,200	57,315	39,366	49,783	68,698	47,759	41,500	18,445	24,385	30,300	15,000	4,300	1,218	1,710	720	9,700	4,780
Forest tent caterpillar
Gypsy moth
Jack pine budworm
Mountain pine beetle
Spruce beetle							46,839	46,839	7,848		41,097	34,841	29,100
Spruce budworm		3,319			430	34,520	36,352	50,767	55,045	33,255	21,790	58,012	48,160	11,900	11,900	1,000														1,920	2,300	1,290
Western spruce budworm
Other insects		159		650	1,443	3,897	2,730	3,083	499	27,542		2,210	12,900	20,000	20,000	11,850	530	19,018	30,116	64,287	28,745	11,874	16,676	7,519	9,828	29,369	23,283	11,682	7,040	10,860	16,560	10,110
Fires ^{Footnote 2}
Area burned (hectares)	324	4,334	316	396	700	10,737	3,671	8,836	30,144	29,283	426	995	16,671	129	11,351	3,466	18,249	2,156	27,711	14,910	966	103,536	39,040	40,161	8,545	81,310	701	110,274	28,480	1,810	56,390	24,602
Number of fires	82	97	99	132	82	18	27	2	71	138	42	46	151	73	66	66	121	125	140	100	182	149	188	180	78	111	86	129	65	106	115	165

Footnotes

Footnote 1

Insects

Source: National Forestry Database. Forest insects – Forest insects, Table 4 Area of moderate to severe defoliation (including beetle-killed trees) by insects. (accessed June 21, 2022).

Notes:

Forest area disturbed by defoliators (e.g., budworms, Lymantria dispar) includes only areas with tree mortality or moderate to severe defoliation. Defoliation does not always result in mortality. Several factors, including defoliation severity, duration, and frequency, or presence of other stressors (e.g., drought), can affect the level of mortality.
Forest area disturbed by bark beetles (e.g., mountain pine beetle, spruce beetle) is derived from aerial surveys that map trees that are dead or dying from successful beetle attack.
Summing the areas affected by more than one insect to create a grand total can result in an overestimate if more than one insect species occurs in the same stand in the same year. For example, in a mixedwood forest, spruce budworm may defoliate balsam fir in the same stand where forest tent caterpillar is defoliating the aspen trees.

Footnote 2

Fires

Sources:

National Forestry Database. Forest fires, Table 3.1.1, Number of fires by cause class. (accessed June 21, 2022).
National Forestry Database. Forest fires, Table 3.2.1, Area burned by cause class. (accessed June 21, 2022).

Note:

The National Forestry Database sources the latest year’s fire data from the Canadian Interagency Forest Fire Centre and all years prior from the Canadian Wildland Fire Information System.