Data from: Meta-analysis shows overall benefits of cattle silvopastoral systems for biodiversity in fragmented forest landscapes

This submission contains three interrelated datasets supporting a systematic review and meta-analysis of biodiversity responses to cattle-based silvopastoral systems (SPS) in fragmented forest landscapes (Perez-Alvarez et al., Ecological Applications, 2026). The study synthesizes evidence from 45 studies across 15 countries, four biogeographic regions, and seven taxonomic groups to evaluate how SPS affect biodiversity (species diversity and abundance) relative to treeless pastures and natural forests. The datasets are organized to reflect the sequential workflow of the meta-analysis: from literature screening and study selection, through effect-size calculation, to sensitivity analyses. They are linked by a common study_id identifier that allows records to be traced across files.