Skip to main content
. 2014 May 14;9(5):e97152. doi: 10.1371/journal.pone.0097152

Table 2. Climate models obtaining substantial support (ΔAICc≤2) and the base temporal model (‘Year + Age’) describing male arrival date (n = 210) and female clutch initiation dates (n = 177) for yellow warblers in Revelstoke, British Columbia.

Model # Period Variables r2 K AIC.c ΔAICc ωi
Male Arrival:
3b Migration U-WIND + AGE + U-WIND*AGE 0.21 5 1452.88 0 0.535
1b Winter SOIMAY-AUG + AGE + SOIMAY-AUG *AGE 0.20 5 1453.85 0.98 0.328
- - YEAR+AGE 0.18 9 1464.32 11.44 0.002
Female clutch initiation date:
3b Migration U-WIND + AGE + U-WIND*AGE 0.16 5 1194.89 0 0.289
5a Migration U-WIND + V-WIND + AGE 0.15 5 1195.00 0.11 0.273
3a Migration U-WIND + AGE 0.14 4 1195.82 0.93 0.181
5b Migration U-WIND + V-WIND + AGE + U-WIND*AGE +V-WIND*AGE 0.16 7 1196.47 1.58 0.131
- - YEAR + AGE 0.16 9 1197.90 3.00 0.064

Age was included in all models as a covariate (see Methods). Wintering model support for male arrival date was counter to prediction (see Discussion).