Bark Beetle Responses to Stand Structure and Prescribed Fire at Blacks Mountain Experimental Forest, California, USA: 5-Year Data

Fire Ecology

Table 1 Evaluation dates, Blacks Mountain Experimental Forest, California, USA.

Plot	Structure^a	Prescribed burn (mo/yr)	Initial survey^b (mo/yr)		Second survey^c (mo/yr)
Plot	Structure^a	Prescribed burn (mo/yr)	Unburned	Burned	All
38	HiD	10/1997	9/1998	8/1999	9/2002
39	LoD	10/1997	9/1998	9/1999	9/2002
40	LoD	10/2000	8/2002	7/2002	8/2005
41	HiD	10/1997	8/1998	8/1999	9/2002
42	HiD	11/1999	9/2001	8/2001	9/2004
43	LoD	10/1997	8/1998	8/1999	10/2002
44	LoD	11/1999	7/2001	8/2001	8/2004
45	LoD	11/1999	10/2001	10/2001	10/2004
46	LoD	10/2000	6/2002	6/2002	d
47	HiD	11/1999	7/2002	7/2002	8/2004
48	HiD	10/2000	7/2002	7/2002	8/2005
49	HiD	10/2000	8/2002	8/2002	10/2005

^a HiD = high structural diversity, LoD = low structural diversity (Oliver 2000).
^b Burned split plots were initially cruised the second field season following application of prescribed fire. Generally, this amount of time is sufficient to allow distinction between crown scorch resulting from fire, and crown fade associated with tree mortality attributed to bark beetle attack.
^c All plots were surveyed the fifth field season following the application of prescribed fire.
^d Plot heavily damaged by wildfire and excluded from analyses.