The importance of landscape composition for pest control and crop yield: A global quantitative synthesis

Using a global structural equation model of 116 studies from 28 countries, we tested three hypotheses: The ‘natural enemy hypothesis’, that natural areas increase natural enemies and suppress pests; the ‘resource concentration hypothesis’, that simplified agriculture increases pests;  and the ‘agronomic quality hypothesis’ with a structural equation model. This repository contains the dataset and R script for the analysis that examines how landscape composition directly and indirectly affects crop yield, mediated through natural enemies, biological control, and pests, across multiple studies using a structural equation model.