Dragonfly Survey Highlights Delhi's Wetland Health
• A recent survey conducted from 17 to 19 September 2026 across Delhi's seven biodiversity parks recorded 11,154 dragonflies and damselflies, representing 51 species. The survey, led by scientists and volunteers, revealed that Yamuna Biodiversity Park hosted the highest species diversity with 23 species, while Kalindi Biodiversity Park recorded the highest number of individuals at 4,
• The survey also identified two new species for the parks: the Yellow-tailed Ashy Skimmer and the Blue Grass Dart. The findings highlight the ecological importance of Delhi's wetlands and their role as habitats for these ancient insects.
Impact & Risks
The survey indicates a decline in the total number of dragonflies and damselflies compared to 2025, attributed to erratic monsoon rains and reduced temporary water bodies. This decline could signal broader ecological challenges for Delhi's wetlands, which are vital for biodiversity and natural pest control. The presence of these insects also reflects the health of aquatic ecosystems, which are under pressure from urbanisation and pollution.
Related News