Patterns of woodboring beetle activity following fires and bark beetle outbreaks in montane forests of California, USA

Fire Ecology

Table 7 Fixed effects and associated hypotheses (H_A from Table 5) in top models of larval woodborer activity across 11 burned sites sampled in the greater Sierra Nevada region of California, USA, during the summers of 2015 and 2016. AICc = Akaike’s information criterion, corrected for small sample size; DOY = day of year; Neg = negative; Pos = positive

Model rank	Predictor	Effect^a	ΔAICc	Δ_Null	H_A
1	Bark beetle activity	Neg^***	0.00	115.86	C
1	Host tree taxon = pine	Pos^***	0.00	115.86	H
2	Host tree taxon = pine	Pos^***	14.93	100.93	H
	Host tree taxon = fir	Pos^ns			H
	Host tree taxon = cedar	Pos^ns			H
3	Host tree size-class = small	Pos^***	51.69	64.17	G
	Bark aspect = south	Pos^***			G
	Fire age	Pos ^ns			A
	Bark aspect × Fire age	Neg^***			G, A
4	Bark aspect = south	Pos^***	71.91	43.95	G
	Longitude	Pos^***			G
	Elevation	Pos ^ns			G
5	Ignition date (DOY)	Neg^*	107.41	8.45	P
	DOY × DOY	Neg^**			P
	Fire age	Pos ^ns			A
	DOY × DOY × Fire age	Pos ^ns			P, A