Historical and contemporary drivers of Amazonian stream fish community assembly

This dataset provides the results of an analysis examining the functional structure and diversity of Amazonian stream fish assemblages. Using null models, the study investigates the spatial variation in functional composition and trait dispersion, focusing on the influence of ecological and historical drivers, such as stream depth, substrate composition, and historical climatic stability. The findings highlight the critical role of habitat complexity, niche differentiation, and evolutionary processes in shaping fish community assembly patterns. This research contributes to understanding how historical events and ecological factors interact to influence the functional diversity of Amazonian ecosystems, with implications for biodiversity conservation and ecosystem management.