Skip to main content

Table 2 Effect of phenotypic traits and local breeding contexts on the probability of polygyny (0/1) for a given male-female combination. Phenotypic traits in males and females are compared in relation to their neighbours to investigate mating patterns at the neighbourhood level. The effect of age was estimated by creating two orthogonal vectors for the first and second polynomial from the original variable (with function "poly" in the R software), and thus the resulting estimates cannot be immediately interpreted biologically (see main text for details)

From: Phenology-mediated effects of phenotype on the probability of social polygyny and its fitness consequences in a migratory passerine

Random effects Variance Std. Dev
Female ID < 0.001 < 0.001
Male ID < 0.001 < 0.001
Fixed effects: Estimate Std. error z P
Intercept − 3.22 0.26 − 12.15 < 0.001
Distance − 0.05 0.01 − 8.50 < 0.001
Female's breeding date 0.05 0.01 3.91 < 0.001
Female's number of neighbours 0.01 0.04 0.41 0.69
Female's tarsus length 0.13 0.19 0.72 0.47
Female's age − 0.01 0.18 − 0.04 0.97
Female's age (quadratic) − 0.15 0.18 − 0.84 0.40
Female's wing length − 0.07 0.07 − 1.03 0.30
Male's breeding date − 0.09 0.02 − 4.23 < 0.001
Male's number of neighbours − 0.03 0.04 − 0.85 0.40
Male's tarsus length 0.15 0.19 0.76 0.45
Male's age 0.03 0.16 0.20 0.85
Male's age (quadratic) − 0.28 0.19 − 1.50 0.14
Male's forehead patch size 0.00 0.01 0.00 1.00
Male's black plumage (dorsal) − 0.01 0.00 1.13 0.26
Male's wing size 0.08 0.07 1.16 0.25