Fig. 3
The relationship between length (SVL) and body mass in puff adders. ‘a’ shows the relationship between SVL and body mass in free ranging puff adders (Bitis arietans); y = 0.00000244*x2.95; N = 75; R2 = 0.90; P < 0.001. Increased positive residuals due to ad libitum feeding (Trial 2) are represented in ‘b’. Arrows provide examples of mass increase in individual puff adders from initial body mass (black markers) to body mass at the termination of the ad libitum feeding trial (grey markers) superimposed over the regression line from ‘a’. Arrows lean to the right due to growth of SVL (2.97%, s.d. 0.86) during trials.
