Figure 1.
Diagram of the choice test apparatus used in the experiment.
The dark gray lines represent the perches. The light gray squares represent the food and water containers. Dotted lines represent grated cage walls.
Figure 2.
Male association patterns based on association score points according to female treatment group.
Association score points above and under the 45° line represent respectively males that showed a significant preference for the C-female (open squares, n=9) and for the T-female (black squares, n=13) while association score points near the 45° line represent males that did not show a significant preference (grey triangles, n=9).
Figure 3.
Male association patterns based on the proportion of association score points for C-females in relation to the difference between the C- and T-female of a stimulus set for four female traits: A) body weight, B) interest score during the according preference test, C) UV chroma of the cere and D) blue chroma of the cere.
As all female stimulus sets were used to test the preference of two different males, each set is represented twice (two successful tests, n=15) or once (one successful test, n=1) in the graphs. Negative values indicate that the T-female of the stimulus set expressed a higher value for the trait than the C-female. Open squares indicate that the C-female (n=9) and black squares that the T-female (n=13) was preferred and gray triangles indicate that there was no significant preference (n=9).