Table 5.

Stepwise multiple regression models explaining range size

Lineage	R2	F	P	Variables	β	t	P
Ilybius	75.5	23.66	0.000	maxLat	0.38	3.16	0.004
				PVR24	-0.50	-4.39	0.000
				PVR20	0.35	3.09	0.005
Deronectes	63.2	18.03	0.000	maxLat	0.70	5.26	0.000
				PVR19	0.31	2.34	0.030
Enicocerus	98.6	121.15	0.000	maxLat	0.52	6.89	0.001
				maxLon	0.47	7.83	0.001
				PVR4	-0.18	-2.83	0.036
Limnebius	75.9	11.01	0.007	maxLat	0.55	2.96	0.021
				PVR5	-0.60	-3.18	0.016
H. gracilis	69.2	12.35	0.002	maxLat	0.58	3.33	0.007
				PVR1	-0.45	-2.56	0.027
H. dentipes	72.3	46.96	0.000	maxLat	0.85	6.85	0.000
Phothydraena	81.8	13.49	0.006	minLat	-0.51	-2.89	0.028
				Habitat1	0.69	3.94	0.008
Graptodytes	88.8	36.89	0.000	maxLat	0.68	7.06	0.000
				PVR8	-0.32	-3.36	0.005
				Habitat0	-0.26	-2.75	0.016
Hydroporus	91.7	69.29	0.000	maxLat	0.70	10.93	0.000
				PVR4	-0.36	-5.77	0.000
				PVR7	-0.17	-2.91	0.008
				PVR21	0.19	3.15	0.004
Hydrochus	78.6	18.31	0.000	maxLat	0.59	3.72	0.004
				PVR8	0.46	2.90	0.016

Summary table for the stepwise multiple regression models explaining range size in the different lineages. We show for each model the explained variance (R² in percentage) and its significance (F and P values). For each variable included in the model, the fitted standardized regression coefficient (β) and its corresponding significance (t and P values) are shown. Variable codes as in Table 2. PVR# refers to phylogenetic vectors used in PVR approach.