Fig. 3From: Geographic variation in growth, survival, and susceptibility to the processionary moth (Thaumetopoea pityocampa Dennis & Schiff.) of Pinus halepensis Mill. and P. brutia Ten.: results from common gardens in MoroccoTrends of variance components for height (a), diameter (b) and survival (c) across ages. Note the similar population variances but the large differences in the residual variances between the two test sitesBack to article page