Transect attributes: climate, habitat, and traits.

aMagnitude of variation (site maximum-site minimum) along transect for climate in principal component scores. bMagnitude of variation along transect for quantitative traits (QTs) in canonical variate scores normalized to unit within-group standard deviation. cCorrelations between site mean CV scores for QTs and climate scores (n = number of sites). 1There is an altitudinal gradient along transect V. 2There is a transition to a more mesic habitat in the north of this transect. 3See the text for a caveat to this prediction.