Abstract

Amid escalating threats to biodiversity, Lima, Alvarado, and Araujo (2025) explored how different landscape features influence bird diversity in Brazil’s Caatinga—the largest tropical dry forest in South America. Their study examined two key measures of biodiversity: α-diversity, which reflects species richness within local sites, and β-diversity, which captures variation in species composition across different sites. Specifically, they investigated how these biodiversity dimensions respond to forest cover, landscape heterogeneity, and the spatial configuration of habitats within agricultural landscapes.