. | d.f. . | F . | P . | r2 . | Estimate (s.e.m.) . |
---|---|---|---|---|---|
Final model | |||||
Body mass | 1,35 | 27.4 | <0.0005 | 0.44 | +0.62 (0.12) |
Body condition | 1,35 | 6.6 | 0.02 | 0.16 | +0.0007 (0.0003) |
Rejected terms | |||||
Age | 1,34 | 1.1 | 0.30 | 0.03 | –0.0007 (0.0007) |
BS at hatching | 1,33 | 0.8 | 0.38 | 0.02 | +0.03 (0.03) |
Cosine(time of BMR) | 1,32 | 0.7 | 0.42 | 0.02 | +0.01 (0.013) |
PB at hatching | 1,30 | 0.5 | 0.49 | 0.02 | –0.05 (0.07) |
. | d.f. . | F . | P . | r2 . | Estimate (s.e.m.) . |
---|---|---|---|---|---|
Final model | |||||
Body mass | 1,35 | 27.4 | <0.0005 | 0.44 | +0.62 (0.12) |
Body condition | 1,35 | 6.6 | 0.02 | 0.16 | +0.0007 (0.0003) |
Rejected terms | |||||
Age | 1,34 | 1.1 | 0.30 | 0.03 | –0.0007 (0.0007) |
BS at hatching | 1,33 | 0.8 | 0.38 | 0.02 | +0.03 (0.03) |
Cosine(time of BMR) | 1,32 | 0.7 | 0.42 | 0.02 | +0.01 (0.013) |
PB at hatching | 1,30 | 0.5 | 0.49 | 0.02 | –0.05 (0.07) |
GLM, general linear model; BMR, basal metabolic rate; PB, proportion of breeders; BS, breeding success
Body mass, body condition and the term cosine(time of BMR) were also included in the analysis. PB and BS at hatching are used as proxies for the overall environmental conditions during early development of the adults of known age. The birds were of known age because they were ringed as chicks.(N=38)b
Non-significant variables are stepwise rejected one by one, and values of rejected terms are those before they were excluded from the model
The GLM was performed with log10-transformed BMR body mass (g). The term `cosine(time of BMR)' refers to the cosine of the time (in rad) when BMR was obtained
N=37 when PB at hatching are included in the model