1. Load package and PREDICTS-like data | 2. Filter data to remove sites in Oceania | 3. Condense land-use categories | 4. Correct measurements for sampling effort, calculate total abundance per site and Bray-curtis dissimilarity between sites (within studies). | 5. Fit a simple model of (rescaled) total abundance in response to land-use, and a simple model of Bray-Curtis dissimilarity. | 6. Cross-validate the fitted model, using both Random, and geographically blocked folds. | 7. Model projection | 8. Data-integration example