Study highlights impact of artificial light on protected areas in Western Ghats

A new study reveals that artificial light at night (ALAN) significantly affects 21 protected areas in Kerala’s Western Ghats. Researchers utilized satellite data and infrastructure mapping to assess light exposure, noting that these reserves are increasingly vulnerable due to proximity to human settlements.

Periyar Tiger Reserve West recorded the highest light levels among the sites surveyed. Within protected zones, the density of places of worship showed the strongest correlation with illumination levels. In surrounding areas, road density and activity centres were identified as primary contributors to light pollution, which can alter wildlife behavior, navigation, and predator-prey interactions.

Editor's note: The brief concisely captures the study's scope, key findings on light pollution sources, and the specific geographic focus.