Fig. 2: Estimated marginal means (EMM), with 95% confidence intervals (CIs, horizontal bars), for each fish species from the three analyses of covariance showing the relationship between upstream distance (explanatory factor) and the local polymorphism rate (P95), expected heterozygosity (HS), and local genetic isolation (FST.P) as response variables.

Significant EMM (i.e., CIs not including zero) are shown in black. All values on the x-axis were multiplied by 103 to increase intelligibility. Species labels indicate their class of life history traits with broadcast spawners, long-distance migrants in white, brood hiders, short-distance migrants in gray and guarders, sedentary species in black.