Understanding the resistance of native fauna to biological invasions is essential for predicting and managing freshwater fish diversity under accelerating global change. Using fish and environmental data from 2622 river basins worldwide, we quantified how niche differentiation, phylogenetic and functional diversity, and richness of native species, as well as environmental factors contribute to non‐native fish richness and occu...

Biological invasion is a key driver of biodiversity loss, leading to significant changes in community composition and structure. Hence, understanding how biological invasions influence community assembly processes is crucial for identifying invasion mechanisms and developing management strategies aimed at minimizing their impacts on natural ecosystems. Beyond environmental filtering or niche‐based exclusion, biotic interaction...