Data and code for the manuscript "Meta-analysis reveals negative but highly variable impacts of invasive alien species on terrestrial insects".

Data and R code provided alongside the manuscript "Meta-analysis reveals negative but highly variable impacts of invasive alien species on terrestrial insects". The files attached can be used to repeat the analysis conducted to investigate the impact of invasive alien species on terrestrial insects with a meta-analytic approach. 

Please note that data for one study could not be made publicly available due to data-sharing restrictions. Thus, results generated using the publicly available datasets may differ slightly from those reported in the manuscript.

The code scripts can be run in order:

1_data_wrangling_and_summary.R uses the extracted_data_for_wrangling_and_analysis.csv data to wrangle and summarise the data. The script also produces the     wrangled_data_for_meta_analytic_models.csv dataset.

2_abundance_models.R uses the wrangled_data_for_meta_analytic_models.csv data to run the abudance meta-analytic models.

3_species_richness_models.R uses the wrangled_data_for_meta_analytic_models.csv data to run the species richness meta-analytic models.