Divergent effects of native deer and alien wild pigs on forest understories

This repository contains the primary data and code used in the analyses for the paper “Divergent effects of native deer and alien wild pigs on forest understories”, in Proceedings of the Royal Society B. All analyses were conducted in R. The main script, Deer&PigEffects.R, includes the workflow for the study, including package loading, data preparation, statistical analyses, model fitting, and figure generation used in the manuscript. Three compiled datasets are provided: plot_alldata_seedling.rds – Seedling survey data from forest plots across the eastern United States. This dataset was used to analyse the effects of deer on forest regeneration and seedling recruitment. plot_alldata_invafinal.rds – Invasive understory plant data from forest plots across the eastern United States. This dataset was used to analyse the influence of deer on understory plant invasions. plot_boardata_final.rds – Seedling and invasive plant data from forest plots in the southeastern United States. This dataset was used to analyse the effects of wild pigs on forest regeneration and understory plant invasions. Detailed descriptions of each dataset, including variable definitions and units, are provided in the README file.本仓库收录了发表于《英国皇家学会学报B辑（Proceedings of the Royal Society B）》的论文《本土鹿类与外来野猪对森林林下植被的差异化影响》的分析所用核心数据与代码。所有分析均通过R语言完成。主脚本`Deer&PigEffects.R`涵盖了本研究的完整工作流程，包括论文中涉及的包加载、数据预处理、统计分析、模型拟合以及图表生成步骤。 本次共提供三份整合数据集： `plot_alldata_seedling.rds`——美国东部森林样地的幼苗调查数据，用于分析鹿类对森林更新与幼苗定植的影响。 `plot_alldata_invafinal.rds`——美国东部森林样地的入侵林下植物数据，用于分析鹿类对林下植物入侵的调控作用。 `plot_boardata_final.rds`——美国东南部森林样地的幼苗与入侵植物数据，用于分析野猪对森林更新及林下植物入侵的影响。 各数据集的详细说明（含变量定义与单位）均收录于README文件中。