Wind conditions on migration influence the annual survival of a neotropical migrant, the western yellow-breasted chat (Icteria virens auricollis)

Table 2 Summary of models examining gender (g), age (a), and temporal (t) variation in (a) resighting probability, and (b) apparent annual survival of the western yellow-breasted chats breeding in south Okanagan valley, British Columbia (n = 313 individuals, 461 encounters

Model	AIC_C	ΔAIC_C	Weight	K
(a) Resighting models
Phi(gat) p(g)	774.28	0	0.51	58
Phi(gat) p(.)	774.30	0.02	0.49	57
Phi(gat) p(g + t)	794.37	20.09	0	71
Phi(gat) p(g*t)	830.29	56.01	0	84
(b) Apparent annual survival models
Phi(.)	708.67	0	0.24	3
Phi(g)	709.22	0.55	0.18	4
Phi(a)	709.42	0.75	0.17	4
Phi(g + a)	709.47	0.80	0.16	5
Phi(g + a+ga)	709.57	0.90	0.16	6
Phi(g + a+t)	713.22	4.55	0.02	18
Phi(g + a+ga + t)	713.32	4.67	0.02	19
Phi(g + t)	713.97	5.30	0.02	17
Phi(a + t)	714.68	6.01	0.01	17
Phi(t)	714.97	6.30	0.01	16
Phi(gat)	774.28	65.61	0	58

We show all models in the resighting candidate set and all models with ΔAIC_C < 10 and the global Phi model in the apparent annual survival candidate set. In all apparent annual survival models resighting probability varies with gender
Phi(.) null model, Phi(g*a*t) global model

ISSN: 1472-6785