Adaptive drift and barrier-avoidance by a fly-forage migrant along a climate-driven flyway

Table 1 Selecting the best GLMM for the latitude of trans-Sahelian migration

Model (fixed effects)	df	AIC	∆AIC	AIC Weight	R2 full	R2 fixed	R2 random
~ longITFseason	10	1086	0	1	0.52	0.32	0.20
~ long*season	6	1096	11	0	0.48	0.32	0.17
~ ITF + long	5	1106	21	0	0.47	0.31	0.16
~ long*ITF	6	1108	22	0	0.47	0.31	0.16
~ long	4	1116	31	0	0.44	0.30	0.14
~ long+season	5	1117	31	0	0.44	0.31	0.14
~ ITF*season	6	1139	54	0	0.42	0.21	0.21
~ ITF + season	5	1141	56	0	0.41	0.22	0.19
~ ITF	4	1156	70	0	0.37	0.18	0.19
~ season	4	1214	129	0	0.23	0.09	0.13
~	3	1245	160	0	0.14	0.00	0.14

Models included fixed effects for the latitudinal position of the ITF, longitude, season, their additive effects and interaction effects. We also allowed for intercepts to vary randomly between individuals in all models. Models are ranked according to increasing ∆AIC/decreasing AIC weight, with the best performing model on top

ISSN: 2051-3933