Table 3.

Results of bootstrap-based test aimed at assessing the relationships between a measure of genetic dissimilarity [F_st/(1 − F_st)] and the riparian distance between pairs of sites

	Fragmentation status
Fish species	Continuous	Fragmented
(A) Leuciscus cephalus	0.571 (0.071) 0.002	0.586 (0.074) 0.001
(B) Leuciscus leuciscus	0.033 (0.092) 0.565	0.648 (0.094) < 0.001
(C) Gobio gobio	0.106 (0.094) 0.182	0.637 (0.039) < 0.001
(D) Phoxinus phoxinus	0.587 (0.057) < 0.001	0.680 (0.035) < 0.001

The first line of each row reports the coefficient of correlation (Pearson r, 1000 iterations) of the relationships and of its standard deviation (in brackets). The second line of each row is the P-value (italic) associated to such coefficients. Bold P-values are significant (P < 0.05). Results are shown for each landscape (fragmented or continuous) and each of the four species [from (A) to (D), in decreasing order of body length; see Table 1] separately.