Table A1.

A matrix of correlation coefficients between different node level measures for the plants. Significant (P << 0.01 except floral area and node duration, for which P ∼ 0.02) correlations are highlighted in gray. (Correlations are symmetric.)

	Betweenness centrality	Closeness centrality	Unweighted degree	Weighted degree	Node duration	Floral area
Closeness centrality	0.72
Unweighted degree	0.82	0.67
Weighted degree	0.57	0.41	0.58
Node duration	0.38	0.25	−0.01	0.02
Floral area	0.35	0.15	0.10	0.46	0.37
Functional complementarity	0.63	0.54	0.68	0.74	−0.06	0.25