High philopatry rates of Yellow-legged Gulls in the southeastern part of the Bay of Biscay

Table 3 Best-ranked models used to estimate a total of three demographic parameter estimates: local recruitment rates, ψ; annual survival, S; encounter rate, p

Models	AICc	ΔAICc	AICc weight	n_p	Deviance
ψ(colony + 4a), S(2a), p(colony + 3a)	5665.27	0	0.9995	18	1735.92
ψ(4a), S(2a), p(colony + 3a)	5680.45	15.18	0.0005	10	1767.22
ψ(colony), S(2a), p(colony + 3a)	5696.30	31.08	0.0000	14	1775.02
ψ(.), S(t), p(t)	6359.11	693.84	0.0000	54	2356.37
ψ(.), S(.), p(.)	6367.65	704.52	0.0000	7	2460.45

For comparison, we also add the model with constant and time-dependent parameter estimates. Conducted models consider either a constant, colony and/or age-dependent effect on parameter estimates. Age categories have been lumped into 2a, 3a or 4a. 2a refers to models assuming a difference between two age classes (birds in their first calendar year and older birds); 3a refers to models assuming a difference between birds in their first and second year, and older birds; 4a refers to models assuming a difference between birds up to their third-year of life, and older birds
AICc small sample sizes-corrected Akaike values, ΔAICc difference of AICc values in relation to the first model, n_p number of parameters

ISSN: 2053-7166