Table 3.

ANOVA results for comparisons of daily energy consumption by overwintering bald eagles in Puget Sound, as derived from bioenergetics model outputs. Main effects were as in Table 2. Statistically significant factors are in bold. The model explained 33.3% of total variation in the data (i.e., r²= 0.333).

Source	df	Sum of Squares	F-ratio	P-value
Decade	1	22,325.7	1266.0	0.001
Month	2	65,090.6	212.6	<0.001
Model	1	51,641.8	100.4	0.010
Site	2	43,650.8	16.233	<0.001
Decade × month	2	10,419.3	145.5	<0.001
Decade × model	1	857.4	18.641	0.050
Decade × site	2	35.271	0.013	0.987
Month × model	2	12,858.8	1128.2	<0.001
Month × site	4	612.2	0.114	0.978
Model × site	2	1029.2	0.383	0.682
Decade × month × model	2	8789.4	271.8	<0.001
Decade × month × site	4	143.2	0.027	0.999
Decade × model × site	2	91.988	0.034	0.966
Month × model × site	4	22.796	0.004	1.000
Decade × month × model × site	4	64.668	0.012	1.000
Error	324	435,610.6