Constitutive and induced phenolics and volatiles in Quercus pyrenaica

With this dataset, we studied elevational gradients and their underlying
climatic factors in constitutive and induced phenolics and
volatile organic compounds in Oak trees. Oak defences were measured in
leaves in a field study.  The dataset includes data for
18 populations of Quercus pyrenaica spanning a 1300 m elevational
gradient (from 370 to 1614 m) with their correspondence coordinates. In
each population we sampled six saplings that were randomly
assigned to one of two treatments: 1) herbivore inductionwith A.
quercertorum larvae or 2) no induction (control). For each tree, we
include an estimation of leaf-herbivory accounting for
pre-treatment variation in natural herbivory as well as in the amount of
experimentally-imposed damage by larvae. For each tree, we quantified and
identify volatile organic compounds. We report 75 individual
compounds including monoterpenes, sesquiterpenes and other
compounds of different nature. We also quantify and identify 40 phenolics
that were classified as condensed tannins, hydrolysable tannins, lignins
or flavonoids. Finally, the dataset includes eight climatic variables
extracted from worldClim for the coordinates of each population.