Tree cover homogenization in semi-open ecosystems worldwide and implications for ecosystem stability and conservation
Semi-open ecosystems, such as savannas and open woodlands, are biodiversity hotspots due largely to their heterogeneous tree cover (TC), which supports diverse habitats. However, increasing woody encroachment is altering TC heterogeneity, with unclear consequences for ecosystem stability. Using global satellite-based TC estimates (2000–2020), we reveal widespread TC homogenization (24.1%) in semi-
