Table 1.

Pairwise F_st estimates and test of genetic differentiation between Hypoplectrus puella, H. nigricans and H. unicolor from Belize, Bocas del Toro (Panama) and Barbados genotyped at 10 microsatellite loci. (Highly significant genetic differences were observed between all pairs of sympatric colour morphs tested except the control, H. puella collected in consecutive years in Panama. n, sample size; CI, confidence interval. F_st estimated following Weir & Cockerham (1984). Genetic differentiation tested with 10 000 permutations using G log-likelihood statistic (Goudet et al. 1996). ^*, ^**, ^***significant p-value at the 0.05, 0.01 and 0.001 levels, respectively.)

	H. puella/H. nigricans	H. puella/H. nigricans	H. puella/H. nigricans	H. unicolor/H. puella	H. unicolor/H. nigricans	H. puella/H. puella
	Barbados	Panama	Belize	Panama	Panama	Panama
	n=50/n=46	n=50/n=50	n=50/n=50	n=40/n=50	n=40/n=50	n=50/n=35
locus	2005/2005	2004/2004	2004/2004	2004/2004	2004/2004	2004/2005
E2	0.001**	0.009*	0.014	0.023*	0.023***	−0.005
Gag010	0.033***	0.016	0.028***	0.007	0.025***	0.005
Hyp001	0.055***	0.003	0.033**	0.011	0.012	0.003
Hyp015	0.027***	−0.011	−0.003	0.000	0.003	−0.009
G2	0.027***	0.026***	0.000	−0.002	0.028***	0.002
H24	0.035***	0.077***	0.022**	0.026**	0.078***	−0.002
Hyp008b	0.113***	0.029**	0.018*	0.001	0.066***	0.009
Hyp016	0.079***	0.042***	0.004	0.025***	0.029***	0.002*
Hyp018	0.000	−0.007	−0.003	0.007	0.024	−0.001
Pam013	0.017***	0.011***	0.006	0.003	0.016***	0.004
overall	0.042***	0.023***	0.013***	0.010***	0.032***	0.001
95% CI	0.022–0.064	0.008–0.039	0.005–0.020	0.004–0.017	0.018–0.048	−0.002–0.004
p-value	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	0.0778