Data for: Traffic influences nutritional quality of roadside plants for monarch caterpillars

Data for: Traffic influences nutritional quality of roadside plants for monarch caterpillars.
This paper analyzes how roads influence the chemistry of soils, milkweed plants, and monarch caterpillars.

The excel file has four tabs with the data used in this paper. Tab 1 has metadata. Tab 2 has the dataset with milkweed leaf chemistry and variables describing environment of the milkweed (e.g. distance from road, traffic volume, etc.). Tab 3 has soil chemistry and soil characteristics from soil samples taken at the base of the milkweed from tab 2. Tab 4 has chemistry of monarch caterpillars that were collected from milkweed plants within this study, as well as the chemistry of the milkweed they were feeding on.

本数据集对应研究主题：交通对帝王蝶幼虫（monarch caterpillars）寄主路边植物营养品质的影响。本研究分析了道路如何影响土壤、马利筋（milkweed）植物以及帝王蝶幼虫的化学组成。
本研究所用数据存储于一份Excel文件中，该文件包含4个工作表：工作表1为元数据（metadata）；工作表2包含马利筋叶片化学组成数据，以及描述马利筋生长环境的各类变量（例如距道路距离、车流量等）；工作表3包含采自工作表2中马利筋植株根部的土壤样本的化学组成与理化特征；工作表4包含本研究中从对应马利筋植株上采集的帝王蝶幼虫的化学组成，以及其取食的该马利筋植株的化学组成。