Statistical data

1. Select area

2. Select year

Disturbance (New Brunswick)
	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)				440	875				4,700	54,020	54,020	49,635							1,504	2,124	1,924		59,274	34,120		33,000	440,304	392,216	196,355	165,450	274,100	240,500
Balsam fir sawfly										45,700	45,700	46,600
Forest tent caterpillar									4,000	7,500	7,500	2,001											250			33,000	435,000	392,000	196,000	79,600	2,900
Gypsy moth																			1,504	2,061	1,164
Jack pine budworm
Mountain pine beetle
Spruce beetle										20	20	19
Spruce budworm				440	875																						4,313			84,300	266,000	237,000
Western spruce budworm
Other insects									700	800	800	1,015								63	760		59,024	34,120			991	216	355	1,550	5,200	3,500
Fires ^{Footnote 2}
Area burned (hectares)	427	1,390	228	311	568	265	263	113	880	361	38	156	254	143	593	625	502	462	239	326	776	493	1,453	412	264	2,017	570	853	778	5,399	3,559	6,218
Number of fires	180	466	183	285	245	285	222	180	353	338	67	179	197	168	318	310	309	256	230	317	496	342	607	288	368	367	547	518	430	576	656	377

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.