Figure 3From: Population variation in brain size of nine-spined sticklebacks (Pungitius pungitius) - local adaptation or environmentally induced variation?Allometric relationship between brain size and body size in nine-spined sticklebacks. Since we detected no significant population-specific relationship, only the common slope (solid line; β = 0.50) is shown. The dashed line denotes isometry. For population abbreviations, see Fig. 1.Back to article page