Data and code for Nest Site Limitation Drives Spatial Structure of Avian-Mediated Arthropod Control in an Agroecosystem

This repository contains the data and R code necessary to reproduce the analyses in the manuscript: "Nest site limitation drives spatial structure of avian-mediated arthropod control in an agroecosystem" (MacDonald et al. 2026). Repository Structure: The repository contains four main analytical components: Arthropod GLMMs: Data and code for running generalized linear mixed models (GLMMs) to evaluate the before-after control-impact (BACI) effect of nest boxes on pest and beneficial arthropod abundances. Diet GLMMs: Data and code for analyzing molecular scatology results of arthropod consumption by cavity-nesting birds. Habitat Selection Models: Data and code for running Resource Selection Functions (RSFs) on GPS-telemetry data to determine the foraging preferences of tree swallows and western bluebirds. N-Mixture Models: Point count data and Bayesian N-mixture models (JAGS) used to estimate the abundance of target (tree swallow, western bluebird) and secondary cavity-nesting species in response to the experimental treatment. Notes: Please see the README.md file included in the dataset for detailed instructions on data files and code. All data files are provided in .csv or .RDS formats, and all analysis scripts are written in R.