Metabolic effects of dietary exposure to polystyrene microplastic and nanoplastic in fruit flies

DescriptionData and R code for Metabolic effects of dietary exposure to polystyrene microplastic and nanoplastic in fruit flies. The dataset includes replicate-level measurements of CO₂ production (V̇CO₂), water-loss rate (EWL), body mass, treatment (control, microplastic, nanoplastic), and tube (random-effect ID) for Drosophila melanogaster. Scripts reproduce all statistics from the manuscript, including linear mixed-effects models (lme4), partial ω² effect sizes with nonparametric bootstrap CIs, post-hoc contrasts, and variance tests. Results show that microplastic (MP) exposure weakens the coupling between V̇CO₂ and water loss and increases among-individual variability, whereas nanoplastic (NP) exposure shows little effect.本数据集及配套R代码聚焦果蝇经膳食暴露于聚苯乙烯微塑料（polystyrene microplastic, MP）与纳米塑料（nanoplastic, NP）后的代谢效应研究。数据集包含重复水平的多项测量指标：二氧化碳产生速率（V̇CO₂）、失水速率（EWL）、体重，以及处理分组（对照组、微塑料组、纳米塑料组）与饲养管（随机效应ID）的相关信息，实验对象为黑腹果蝇（Drosophila melanogaster）。配套脚本可复现论文中的全部统计分析流程，包括基于lme4包的线性混合效应模型（linear mixed-effects models）、带非参数bootstrap置信区间的偏ω²效应量计算、事后多重比较以及方差检验。分析结果显示，微塑料暴露会削弱二氧化碳产生速率与失水速率之间的耦合关系，并增大个体间变异程度，而纳米塑料暴露则几乎未产生显著影响。