Acoustic monitoring of wildlife provides a non-invasive welfare assessment tool and conservation planning resource for a wide range of species.
Wildlife acoustics offers a genuinely non-invasive approach to both monitoring and welfare assessment that avoids the capture stress of traditional tracking methods. Animals monitored acoustically experience no handling, no marking and no physiological perturbation from monitoring equipment. For species known to vocalize differently when stressed - dolphins in captivity show altered whistle patterns, birds in noisy environments change singing frequency - acoustic monitoring can provide welfare indicators without capture. At the population scale, declining acoustic diversity from healthy soundscapes serves as an early warning system for ecosystem deterioration before visible welfare impacts become apparent. Investment in acoustic monitoring infrastructure is both a conservation tool and an increasingly important welfare assessment approach.