Butterfly and plant raw data

This excel file contains three tabs. Tab 1 includes data for the monarch rearing experiment including sex (males, females), rearing treatment (roadside collected milkweed or prairie collected milkweed), wing length (the measure of body size), thoracic protein, dry thoracic weight and the width of each eye (note the final analyses used log transformed values of several metrics as described in the methods). Tab 2 includes data for the cabbage white butterfly rearing experiment, including sex (males, females), rearing treatment (low sodium or medium sodium artificial diet), wing length (the measure of body size), thoracic protein, dry thoracic weight and brain volume of a subset of specimens (note that the final analysis used log transformed values of several metrics as described in the methods). Tab 3 includes element measurements of leaf tissue of plants collected from along roadsides and in control sites >100 m from the road. Our analyses focused on sodium and nitrogen (note that sodium values were log transformed for normality in statistical analyses). Here we also include values of other elements that are measured in a standard ICP-AES analysis; N values came from a separate analysis of the same samples (using the Dumas method).