Figure 7
From: Ontogenetic changes in genetic variances of age-dependent plasticity along a latitudinal gradient

Genetic variation for the slope of thermal reaction norms (TRN) of size when damselfly larvae were measured at the age of 42, 84 or 126 days. Shown are differences in VA slope for species with different distributions (a–c) and for latitudinal populations situated at the northern, central and southern part of each species’ latitudinal range (d–f).