Table 1.

Model selection of the effects on paternity success of the predictor traits seminal vesicle size, delta copulation frequency and total copulation frequency.

source	estimate	s.e.	d.f.	F-value	p-value
full model
seminal vesicle size	4.60 × 10–4	9.91 × 10–5	1, 63	50.89	<0.001
delta copulation frequency	0.0369	0.0174	1, 62	4.88	0.031
total copulation frequency	−0.0014	0.0206	1, 61	0.0046	0.946
reduced model
seminal vesicle size	4.58 × 10–4	9.67 × 10–5	1, 63	51.67	<0.001
delta copulation frequency	0.0371	0.0171	1, 62	4.95	0.030