Table 1.

Linear selection differential (s_ij) on Moricandia arvensis traits.

	Spring				Summer
	s ij	SE	t	p	s ij	SE	t	p	Interaction	p
Floral traits
Floral diameter	0.25	0.12	2.07	0.041	0.98	0.27	3.68	0.001	1.80	0.006
Corolla tube length	0.09	0.13	0.70	0.489	0.58	0.28	2.05	0.044	0.72	0.110
Cyanidin content	−0.17	0.12	1.41	0.163	−0.37	0.29	1.27	0.207	−2.17	0.170
Kaempferol content	−0.23	0.12	1.84	0.068	−0.62	0.28	2.20	0.031	0.65	0.616
Brightness	0.09	0.13	0.75	0.453	0.17	0.29	0.59	0.557	0.13	0.688
Chroma	0.04	0.13	0.29	0.774	−0.22	0.29	0.76	0.452	−1.54	0.355
Chromatic contrast	−0.05	0.13	0.36	0.720	−0.27	0.29	0.94	0.351	−0.32	0.403
Achromatic contrast	0.05	0.13	0.44	0.665	0.20	0.29	0.67	0.504	0.26	0.495
Corolla shape component 1	−0.13	0.12	1.03	0.304	−0.23	0.29	0.80	0.428	−0.06	0.830
Corolla shape component 2	−0.05	0.13	0.42	0.679	0.29	0.29	0.99	0.325	0.31	0.280
Corolla shape component 3	−0.18	0.12	1.46	0.146	−0.09	0.29	0.31	0.756	0.13	0.654
Corolla shape component 4	−0.05	0.13	0.36	0.718	−0.27	0.29	0.92	0.359	−0.18	0.538
Leaf economics spectrum traits
Specific leaf area	0.13	0.12	1.05	0.295	−0.43	0.29	1.49	0.140	−0.64	0.050
Leaf dry matter content	−0.21	0.12	1.66	0.100	−0.89	0.27	3.28	0.002	−0.14	0.757
Nitrogen content	0.33	0.12	2.71	0.008	−0.29	0.29	0.98	0.329	−0.65	0.034
Carbon to nitrogen content	−0.40	0.12	3.33	0.001	0.02	0.30	0.08	0.938	−0.54	0.098
Phosphorous content	0.11	0.13	0.88	0.382	−0.22	0.32	0.70	0.484	−0.78	0.045
Potassium content	0.00	0.13	0.05	0.957	−0.56	0.31	1.78	0.079	−0.64	0.034
Life history traits
Plant height	0.64	0.11	5.94	0.001	0.95	0.27	3.52	0.001	0.07	0.788
Number of flowers	0.47	0.12	4.03	0.001	1.67	0.22	7.71	0.001	18.94	0.000
Plant size	0.78	0.10	8.08	0.001	1.41	0.24	5.88	0.001	0.88	0.000
Number of ovules	0.47	0.12	4.04	0.001	0.55	0.30	1.81	0.075	0.51	0.013

Significance of selection differential was found using linear models (Equation 3 in the Methods section). Numbers in bold indicate significant effects. See Supplementary Table S2 and Supplementary Method S3 for trait definition.