Main data set used for the analysis

<b>Megafauna_Meta_Analysis_Data.Rds</b>: the main data set used to run the analysis. Columns:- data_point_ID: Unique ID for each data point (=pairwise comparison)- Citation: Unique ID for each included study- Title: The title of the study- data_year: Year of data collection if reported, otherwise year of publication.- Latitude: Latitude of study- Longitude: Longitude of study- Study_Notes: Notes on study- Data_Notes: Notes on data- Design_Notes: Notes on study design- broad_experimental_mechanism: The mechanism used to study megafauna impacts (exclosure, enclosure, management differences etc)- eco_response: Ecosystem response category used in the analysis- Response_Cat: Semi-specific response category- Response: Specific response measured and reported in study (e.g., cover, density, diversity, concentration, and so on)- Units: Units of reported response- treatment_duration_days: The number of days since experimental treatment as a numeric variable- measure_area_m2: Area of measurement (i.e., plot size)- time_series_clean: Some studies reported repeated measurements of the same plot. This column gives a numeric sequence for time series data (e.g., same site, plot, species, and response, but measured on different dates)- experiment_id: ID of a specific experiment for random effects (e.g., one nutrient response per study).- Nutrient_Cleaned: Which nutrient response was measured (if any)- Herbivore_nativeness: Whether the experimental treatment contains introduced species (“Introduced”) or native only (“Native”).- Species_Class: The type of species affected by the megafauna- Species_Level: Whether the response is a species, a genus, a family, or a higher level (e.g. all plants)- Species: The species responding to the megafauna- yi_smd: Hedges‘ g (standardized mean difference)- vi_smd: Variance in yi_smd- abs_yi_smd: Absolute value of yi_smd- yi_cvr: LnCVR (effect size measuring heterogeneity in response)- vi_cvr: Variance in yi_cvr- NPP: Net primary productivity- BIOME: Biome of the study-location- REALM: Biogeographic realm of the study-location- MAT: Maximum annual temperature- MAP: Maximum monthly precipitation- ai: Aridity index (lower values = higher aridity)- site_id: Similar between studies in close spatial proximity, used for random effects.- mean_species_body_mass: Mean species body mass of the herbivore community (kg)- max_species_body_mass: Body mass of the largest species in the herbivore community (kg)- mean_species_body_mass_CWM: Community weighted mean species body mass of the herbivore community (kg)- max_species_body_mass_CWM: Community weighted max species body mass of the herbivore community (kg)- total_loss_kg_ha: Herbivore biomass per ha excluded due to treatment (kg/ha)- soil_cec: Soil cation exchange capacity (mmol(c)/kg)- clay: Soil clay content (g/kg)- soil_nitrogen: Soil nitrogen content (cg/kg)- pH: Soil pH water (pH*10)- …_scaled: The columns ending with “_scaled” contain the respective log-transformed and scaled covariates.