Table 1.

GLMMs to quantify effects of sex, population density, and Avpr1a and Oxtr RRAM allele lengths on three different components of reproductive success: number of newborn offspring, number of recruited (weaned) offspring, and recruitment success in the bank vole M. glareolus

Fitness component, locus–sex combination	Allele length		Population density		Allele length × population density
	Estimate	P	Estimate	P	Estimate	P
Number of newborn offspring
Avpr1a male	−0.007	0.422	−0.419	0.093	0.050	0.011
Avpr1a female	0.000	0.950	−0.257	0.070	0.011	0.370
Oxtr male	−0.024	<0.001	−0.011	0.936	0.023	0.011
Oxtr female	−0.001	0.850	−0.062	0.630	0.001	0.900
Number of recruited offspring
Avpr1a male	−0.003	0.800	−0.518	0.160	0.046	0.130
Avpr1a female	0.007	0.325	−0.776	0.006	0.053	0.009
Oxtr male	−0.037	<0.001	−0.240	0.463	0.045	0.002
Oxtr female	0.002	0.840	−0.119	0.520	0.002	0.900
Recruitment success
Avpr1a male	0.035	0.051	0.131	0.853
Avpr1a female	0.127	0.002	0.669	0.289	−0.146	<0.001
Oxtr male	0.006	0.354	0.431	0.481	−0.036	0.169
Oxtr female	0.007	0.869	0.516	0.442	−0.011	0.629

Allele length × population density refers to the interaction between allele length and population density. Significant (P < 0.05) effects are highlighted in bold.