TY  - JOUR
T1  - Impact of Noise and Artificial Light at Night on Dawn Chorus and Avian Behaviour in Pune
A1  - Ashish Vilas Mane
A1  - Tarak Vinay Sawant
A1  - Lokshiva Abhijay Pitchuka
A1  - Arshaan Sajid Shaikh
JF  - World Journal of Environmental Biosciences
JO  - World J Environ Biosci
SN  - 2277-8047
Y1  - 2026
VL  - 15
IS  - 2
DO  - 10.51847/u3pwuL5K2I
SP  - 39
EP  - 49
N2  - Urbanization and anthropogenic disturbances strongly affect avian behavior, especially dawn chorus activity. This study examined the effects of environmental variables such as noise levels and light intensity on dawn chorus dynamics. Surveys were conducted at four urban and semi-natural habitats in Pune during the monsoon 2025 and winter 2026. Variations in bird vocalization patterns, timing, and behavioral responses were analyzed in relation to increasing urban noise and artificial light at night. Sampling was conducted at Prabhat Road, BMCC Road, Hanuman Tekdi, and Vetal Tekdi during early morning hours at five-minute intervals. Ambient noise and illuminance were measured using calibrated mobile applications, while bird species were identified using Merlin Bird ID and field observations. Results showed that urban sites had higher noise levels and greater anthropogenic disturbance than hillock ecosystems. Dawn chorus activity increased with sunrise and rising light intensity. Winter observations recorded higher lux values and stronger bird vocalization. Variations in chorus timing and activity reflected the influence of urban environmental conditions on avian behavior. Principal Component Analysis (PCA) revealed significant associations among seasonal variation, light intensity, and noise conditions.
UR  - https://environmentaljournals.org/article/impact-of-noise-and-artificial-light-at-night-on-dawn-chorus-and-avian-behaviour-in-pune-c3bks6dmngr3uu3
ER  -