
Ecoacoustics is an innovative approach to study the interactions between ecosystem structure and soundscape, providing quantitative metrics for the analysis of biodiversity and human impacts. This study, conducted in a Site of Community Interest (SCI) in the Ticino Valley Regional Park, integrates passive acoustic monitoring with detailed vegetation surveys to investigate the relationships between soundscape and forest complexity. Principal component analysis and statistical modelling of ecoacoustic indices and vegetation parameters reveal a clear relationship between tree cover heterogeneity and acoustic diversity, highlighting the role of mature trees and biomass in modulating the acoustic properties of the environment. These results confirm the value of ecoacoustics as a tool for ecological research and demonstrate the importance of an interdisciplinary approach in understanding environmental dynamics and defining effective strategies for protecting ecosystems from noise pollution.