Revisiting the drivers of acoustic similarities in tropical anuran assemblages

Acoustic signaling is key in mediating mate choice, which directly impacts individual fitness. Because background noise and habitat structure can impair signal transmission, the acoustic space of mixed-species assemblages has long been hypothesized to reflect selective pressures against interference degradation. However, other potential drivers that received far less attention drive similar outputs on space. Phylogenetic niche conservatism allometric constraints may also modulate species features, communities could be a side-effect ecological assembly processes involving traits (e.g., environmental filtering). Additionally, sorting relying public information through extended communication networks. Using an integrative approach, we revisit by addressing distribution traits, body size, phylogenetic relatedness tropical anuran across gradients heterogeneity Pantanal wetlands. We found overall aggregated compared with null expectations, even when accounting for confounding effects size. Across assemblages, differences were positively related, while size similarities negatively although minor extent. suggest partitioning, adaptation, play role shaping output use would influence between-assemblage variation. Our findings highlight overlooked multivariate nature dimension underscore importance including context understand