Climate warming and drought modify galling effects on tall goldenrod

These data and R scripts are from a study of climate change impacts on galling in goldenrod (Solidago altissima), at Kellogg Biological Station Long-Term Ecological Research (KBS LTER) site, Hickory Corners, Michigan, USA during the summers of 2021-2022 (REX 2024). This study set is part of the KBS LTER Rainfall Exclusion eXperiment (REX). Goldenrod plants with and without galls caused by Rhopalomyia solidaginis were exposed to warmed, drought, and warmed x drought treatments, and ambient (no treatment) and irrigated control conditions. Warming was achieved by use of open-top chambers for tall-stature plant communities (Welshofer et al. 2018 MEE) and a 6-week drought was implemented by use of rain-out shelters (Kahmark et al. 2024 Zenodo). L0 data are available upon request; they include the raw data from the KBS LTER REX project. The scripts that are used to clean L0 data and produce L1 data are also available upon request. The L1 data are the result of merged L0 data and are cleaned for typos and use standardized names. L1 data contain plant and gall traits from all treatments. The L2 scripts use the L1 data for statistical analyses and to create figures. Literature cited: Kahmark, K., Jones, M., Bohm, S., Baker, N., & Robertson, G. P. (2024). Rainfall manipulation shelters for agricultural research. Zenodo. https://doi.org/10.5281/zenodo.10607631. Rain Exclusion eXperiment (REX). (2024). https://lter.kbs.msu.edu/research/rainfall-exclusion-experiment/. https://lter.kbs.msu.edu/research/rainfall-exclusion-experiment/. Welshofer KB, Zarnetske PL, Lany NK, Thompson LAE (2018) Open-top chambers for temperature manipulation in taller-stature plant communities. Methods Ecol Evol 9:254–259. https://doi.org/10.1111/2041-210X.12863.

本数据集与配套R脚本源自一项探究气候变化对加拿大一枝黄花（Solidago altissima）虫瘿发生影响的研究，该研究于2021-2022年夏季在美国密歇根州希科里科纳斯的凯洛格生物站长期生态研究（KBS LTER）站点开展（REX 2024）。
本数据集属于KBS LTER降雨排除实验（Rainfall Exclusion eXperiment, REX）的子项目。
研究针对被一枝瘿蚊（Rhopalomyia solidaginis）诱导形成虫瘿与未形成虫瘿的加拿大一枝黄花植株，设置了增温、干旱、增温×干旱交互处理，以及空白对照（无处理）和灌溉对照共4种实验处理。其中增温处理采用适配高大植物群落的开顶式生长箱（open-top chambers）（Welshofer等，2018，《生态学与进化方法》（Methods in Ecology and Evolution, MEE））；为期6周的干旱处理则通过防雨棚（rain-out shelters）实施（Kahmark等，2024，Zenodo）。
L0级数据可申请获取，其包含KBS LTER REX项目的原始观测数据；用于清洗L0级数据并生成L1级数据的配套脚本同样可申请获取。L1级数据由合并后的L0级数据清洗整合得到，已修正拼写错误并采用标准化命名规范，涵盖所有实验处理下的植株性状与虫瘿性状数据。L2级脚本依托L1级数据开展统计分析并生成可视化图表。
引用文献：
Kahmark K, Jones M, Bohm S, Baker N, Robertson GP (2024) 农业研究用降雨调控防雨棚. Zenodo. https://doi.org/10.5281/zenodo.10607631.
降雨排除实验（Rainfall Exclusion eXperiment, REX）(2024). https://lter.kbs.msu.edu/research/rainfall-exclusion-experiment/ https://lter.kbs.msu.edu/research/rainfall-exclusion-experiment/
Welshofer KB, Zarnetske PL, Lany NK, Thompson LAE (2018) 适用于高大植物群落的温度调控开顶式生长箱. 《生态学与进化方法》9:254–259. https://doi.org/10.1111/2041-210X.12863.