Effect of food availability to lactating mothers on the variation of offspring body condition with age.
Non-linear temporal variation of log (body mass) residuals [adjusted for log (femur length)] of offspring from females fed ad libitum (AL, panel A) and from calorie restricted females (CR, panel B). The curve describing the age effect (solid line) was extracted from GAMMs. Dashed lines depict 2 standard error point-wise confidence bands, and black dots provide partial residuals. In panel A., red dashed line points the date at which body condition is above average, thereby signing a sustained high body mass increase relative to body size growth. In panel B., red dashed lines and bold labels delimit the period of delayed growth.