Table 3.

Finch feeding preferences for human versus natural foods across sites

Factors	SS	df	F	p
Site	2.09	3	40.723	<0.001
Food category	0.63	1	36.710	<0.001
Food type (Nested)	0.56	4	8.237	<0.001
Site*food category	0.95	3	18.588	<0.001
Site*food type	0.45	12	2.176	0.011
Residuals	14.26	834

Results of a nested linear model examining variation in the amount of food eaten in cafeteria experiments across sites with different degrees of urbanization on Santa Cruz Island, Galápagos, Ecuador. Values in bold represent statistically significant differences. The direction of the effects has been included in the main text.