Figure 4: Relationship between juvenile body length and vertebral number.
From: Causes and consequences of intra-specific variation in vertebral number
(a) Juveniles that were reared in a common garden experiment. (b) Juveniles that were captured in the wild upon leaving their breeding ground. All data are for Esox lucius pike individuals from subpopulation O. The relationship in wild caught juveniles remained significant when data for the two individuals with 58 and 63 vertebrae were omitted from the analysis (test of linear effect: t = 3.10, P = 0.0028, effect size η2 = 0.13; test of quadratic (curvilinear) effect: t = −3.09, P = 0.0029, effect size η2 = 0.13). Dashed blue lines indicate 95% CI. Data on vertebral number have been jittered in the x-axis direction.
