| |
Male color
| | | | |
|---|
|
Measure
|
red
|
red/orange
|
orange/yellow
|
yellow
|
β
|
t
|
p
|
r
2
|
|---|
|
r
|
0.12 ± 0.01
|
0.12 ± 0.007
|
0.10 ± 0.006
|
0.11 ± 0.006
|
3.81
|
1.54
|
0.12
|
0.191
|
|
φ
|
1.28 ± 0.08
|
-1.39 ± 0.06
|
-0.616 ± 0.73
|
-1.01 ± 0.15
|
0.099
|
2.60
|
0.0098
|
0.216
|
|
θ
|
-0.48 ± 0.02
|
0.02 ± 0.06
|
0.15 ± 0.04
|
0.49 ± 0.10
|
-0.59
|
-4.60
|
< 0.0001
|
0.236
|
|
chromatic contrast (jnds)
|
-
|
11.0 ± 1.5
|
11.49 ± 0.9
|
15.6 ± 1.4
|
-0.032
|
-4.20
|
< 0.0001
|
0.233
|
|
achromatic contrast (jnds)
|
-
|
3.1 ± 0.7
|
3.6 ± 0.73
|
6.5 ± 1.1
|
-0.055
|
-3.21
|
0.0015
|
0.233
|
|
Hue (nm)
|
575.9 ± 6.7
|
553.2 ± 1.8
|
548.8 ± 1.0
|
524.3 ± 6.4
|
0.011
|
4.50
|
< 0.0001
|
0.244
|
- Mean ± SE values for color measures acquired from stimulus male and the results of a linear regressions of female association time with each measure of experimental male plumage color. Chromatic and achromatic contrast values were calculated in comparison to the reddest male in each mate choice trial.
