Table 1.

Status-specific phenotypic plasticity in sperm mobility. (Fluctuations in sperm mobility of individual males in the four social phenotypes. Likelihood ratio tests (LRT) were used to assess the significance of each random effect.)

social phenotype	term	N	variance component	s.e.	LRT (G statistic)	p
DD	male	15	0.63	0.26	45.36	<0.0001
DD	male×measurement		0.00	0.04	0.00	1.0
Ds	male	15	0.19	0.10	12.20	0.0004
Ds	male×measurement		0.00	0.05	0.00	1.0
sD	male	14	0.06	0.05	4.10	0.04
sD	male×measurement		0.08	0.05	0.00	1.0
ss	male	15	0.32	0.16	17.70	<0.0001
ss	male×measurement		0.01	0.06	0.00	1.0