What Explains Forest Grouse Mortality: Predation Impacts of Raptors, Vole Abundance, or Weather Conditions?

Table 2

Generalised linear models explaining variation in chick losses (upper panel) in study areas of South Ostrobotnia and Oulu area in western Finland during 1985–2007. LRT denotes log ratio 𝜒² test for model effect.

Model		AICc	ΔAICc	LRT	df	P	Deviance
4	Goshawk	2.129	0.000	6.961	1	0.008	1.077
5	Goshawk, area	3.632	1.503	8.417	2	0.015	1.011
6	Goshawk, voles	4.359	2.230	7.689	2	0.021	1.104
1	Voles	7.431	5.302	1.658	1	0.198	1.357
8	Goshawk, voles, weather	7.665	5.536	7.690	3	0.053	1.044
9	Weather	8.927	6.798	0.162	1	0.687	1.448
7	Goshawk, voles, area, area*voles	9.208	7.079	9.868	4	0.043	0.949
2	Voles, area	9.873	7.744	2.175	2	0.337	1.326
3	Voles, area, voles*area	10.714	8.585	4.642	3	0.200	1.191
10	Global model	17.977	15.848	10.135	6	0.119	0.938