Table 2.

The effect of the ratios between the total stopover duration for spring and autumn (Q_stopover) on the ratios between the total speed of migration for spring and autumn (Q_{speed of migration}) for ten species with more than six individuals tracked. Sample size (n), estimate ± standard error (se), R², and P-value are given for each linear model.

Species	n	Estimate ± se	R2	P
Greater White-fronted Goose Anser albifrons	17	−0.84 ± 0.13	0.73	<0.0001
Osprey Pandion haliaetus	15	−0.28 ± 0.04	0.79	<0.0001
Lesser Kestrel Falco naumanni	7	−0.41 ± 0.12	0.71	0.0188
Great Knot Calidris tenuirostris	7	−0.76 ± 0.6	0.97	<0.0001
Sanderling Calidris alba	13	−0.88 ± 0.09	0.92	<0.0001
Lesser Black-backed Gull Larus fuscus	17	−0.63 ± 0.07	0.83	<0.0001
Common Swift Apus apus	17	−0.23 ± 0.06	0.63	0.0002
Swainson’s Thrush Catharus ustulatus	37	−0.82 ± 0.06	0.86	<0.0001
Northern Wheatear Oenanthe oenanthe	20	−0.39 ± 0.16	0.14	0.0298
Snow Bunting Plectrophenax nivalis	16	−0.74 ± 0.08	0.86	<0.0001