Table 2.

Specific models, explaining group-living in a Scandinavian Arctic fox population

	p values
	Primary productivity	Dist. closest neighbour	Mean altitude	Rodent index	K	AICc	ΔAICc	AICcWt	LL	Cum. Wt
(A) Peak Phase
Specific model	0.013	0.057	0.058	0.57	6	63.68	0.00	0.74	− 24.86	0.74
Constant					3	65.82	2.14	0.26	− 29.65	1.00
(B) Decrease phase
Constant					3	32.44	0.00	0.99	− 12.37	0.99
Specific model	0.44	0.35	0.90	0.83	6	41.30	8.85	0.01	− 10.83	1.00

Based on data solely from (a) peak year and (b) decrease year of the small rodent cycle. The model of the peak phase performed better than the constant reference model (ΔAICc > 2). The decrease phase model did not perform better than the constant reference model, and we found no relationships explaining the occurrence of complex families