Mantel tests of correlations between subpopulation‐level metabolic, genetic, and environmental distances. Chemical distance matrix obtained through Analysis of Similarities (ANOSIM) using 377 metabolites. Genetic distance matrix consists of linearized F
ST values calculated from 1,171 reference (putatively neutral) SNPs. Site‐level means of temperature at collection (Tcol) and precipitation of driest month (Bio14) used for matrices of Euclidean distances, and geographic distance among sites calculated from a X, Y coordinate system. Vertical bar denotes partial Mantel's test controlling for third matrix right of “|”