Table 3. Pairwise C. glabrata population differentiation matrix according to the study sites.

	PB	PF	GM	RI	FR	MA	MO	NI
PB		0.35	0.08	<0.001	<0.001	<0.001	0.01	<0.001
PF	0.003		0.16	<0.001	<0.001	<0.001	0.001	<0.001
GM	0.043	0.036		<0.001	<0.001	<0.001	0.009	<0.001
RI	0.262	0.43	0.615		<0.002	<0.001	<0.001	<0.001
FR	0.074	0.146	0.198	0.112		0.009	0.012	0.06
MA	0.071	0.132	0.215	0.157	0.044		0.04	0.06
MO	0.050	0.104	0.11	0.229	0.052	0.037		0.17
NI	0.085	0.139	0.248	0.205	0.035	0.032	0.022

Slatkin’s linearized F_ST fixation index values are tabulated in the lower triangle, and the corresponding P values are indicated in the upper triangle. Statistically significant F_ST values is indicated in bold text.

Study site abbreviations. Yellow-legged gulls’ breeding colonies: PB = lagoon of Pierre Blanche; PF = Palavas-les-Flots; GM = La Grande-Motte; RI = Riou Archipelago and FR = Frioul Archipelago. University hospitals of MA = Marseille, MO = Montpellier and NI = Nîmes.