Six new species of dragonflies and damselflies were found in Silent Valley National Park during an odonate survey. The survey was conducted from October 10 to 12. The survey, jointly held by Silent Valley National Park and the Society for Odonate Studies (SOS), recorded the growing richness of the park’s pristine ecosystem. The survey recorded 83 species of odonates in the park, including the six new species. With the new records, the total number of known odonate species in the Silent Valley National Park has increased from 103 to 109.
Survey Details and Key Findings
This survey was a collaborative effort between Silent Valley National Park and the Society for Odonate Studies. It spanned 12 campsites and involved 37 volunteers and forest staff. Among the newly identified species are the Long Legged Clubtail, Fraser’s Torrent Hawk, Dark Daggerhead, Blue-necked Reedtail, Wayanad Torrent Dart, and Black and Yellow Bambootail. These discoveries showcase the diverse microhabitats that thrive within the park.
Significance of New Species
The addition of these new species enhances the ecological richness of Silent Valley. Many of them are endemic to the Western Ghats and rely on specific habitats. For instance, species like Protosticta mortoni and Indosticta deccanensis highlight the park’s role as a sanctuary for rare and localized odonates. High-elevation species such as Caconeura gomphoides further emphasize the park’s unique environment.
Freshwater Quality Indicators
Three Euphaea species (Euphaea dispar, E. fraseri, and E. wayanadensis) were recorded during the survey. Each of these species is a known indicator of freshwater quality, representing specific altitudinal and microhabitat ranges, thereby confirming the excellent ecological integrity of the park’s freshwater streams.
Ecological Importance of Odonates
Odonates are vital bioindicators of ecosystem health. Changes in their populations can signal shifts in habitat quality. The survey’s transect method enables detailed monitoring of species distribution and abundance. Future comparisons with past data will provide insights into long-term ecological trends in Silent Valley.
Ongoing Research and Conservation Efforts
This was the fourth odonate survey in Silent Valley since 2019. Experts said one more survey would be conducted next year as part of a deeper study.The involvement of local forest officials and odonate specialists ensures comprehensive data collection. These efforts support conservation and management of this vital protected area.
