Table 3.

ANCOVA results for the first 6 CHC Principal components for Drosophila mojavensis of increasing ages from two populations reared on agria and organ pipe cactus

	PC 1		PC 2		PC 3		PC 4		PC 5		PC 6
Effect	F	Pr	F	Pr	F	Pr	F	Pr	F	Pr	F	Pr
Model	5.201	<0.0001	14.12	<0.0001	30.49	<0.0001	18.63	<0.0001	1.91	0.023	3.60	<0.0001
Population	1.45	0.230	0.5	0.480	89.66	<0.0001	19.85	<0.0001	0.07	0.795	15.78	<0.0001
Cactus	0.24	0.627	0	0.998	17.25	<0.0001	0.08	0.781	0.06	0.808	0.47	0.494
Population × Cactus	0.31	0.579	0.01	0.933	3.3	0.071	0.14	0.705	2.59	0.109	0.31	0.576
Sex	2.12	0.147	1.56	0.213	6.71	0.010	0.2	0.655	2.40	0.123	1.25	0.265
Population × Sex	0.02	0.887	0.32	0.575	4.05	0.045	0.11	0.740	1.79	0.182	0.02	0.891
Cactus × Sex	0.23	0.630	0.75	0.388	0.23	0.635	2.63	0.106	3.56	0.061	3.27	0.072
Population × Cactus × Sex	0.7	0.405	0.01	0.920	0.55	0.460	0.62	0.432	2.19	0.141	0.55	0.459
Age	11.85	0.001	168.5	<0.0001	41.04	<0.0001	32.72	<0.0001	3.00	0.085	0.92	0.337
Age × Population	9.61	0.002	0.24	0.624	0.24	0.627	1.17	0.280	0.10	0.756	29.38	<0.0001
Age × Cactus	0.17	0.683	0.02	0.901	22.95	<0.0001	9.61	0.002	0.02	0.888	1.19	0.277
Age × Population × Cactus	1.27	0.262	0.94	0.333	2.25	0.135	1.65	0.200	3.17	0.076	0.5	0.478
Age × Sex	1.27	0.260	1.38	0.242	12.56	0.001	36.00	<0.0001	7.64	0.006	5.47	0.020
Age × Population × Sex	0.05	0.831	0.05	0.824	1.63	0.204	3.66	0.057	3.54	0.061	0.53	0.468
Age × Cactus × Sex	0.45	0.501	0.07	0.785	1.00	0.318	0.21	0.647	5.70	0.018	0.54	0.464
Age × Pop × Cactus × Sex	2.09	0.149	0.06	0.814	0.65	0.420	0.02	0.893	2.79	0.096	0.55	0.461

¹Significant effects are indicated in bold. Total n = 242, all df = 1,226.