Six New Dragonfly Species Found in Silent Valley Park

Recent surveys in Silent Valley National Park have revealed six new species of dragonflies and damselflies. Conducted from 10 to 12 October, this odonate survey recorded a total of 83 species in three days. The park’s known odonate diversity now stands at 109 species. This discovery marks the park’s rich and varied ecosystem.

Survey Details and Findings

The survey was a joint effort by Silent Valley National Park and the Society for Odonate Studies. It covered 12 campsites with participation from 37 volunteers and forest staff. The new species identified include Long Legged Clubtail, Fraser’s Torrent Hawk, Dark Daggerhead, Blue-necked Reedtail, Wayanad Torrent Dart, and Black and Yellow Bambootail. These additions reflect the diverse microhabitats within the park.

Significance of New Species

The newly recorded species add to the ecological richness of Silent Valley. Many are endemic to the Western Ghats and depend on specific habitats. For example, species like Protosticta mortoni and Indosticta deccanensis show the park’s importance as a refuge for rare and localised odonates. High-elevation species such as Caconeura gomphoides further underline the park’s unique environment.

Freshwater Quality Indicators

Three species from the genus Euphaea were recorded, known to indicate freshwater quality. Their presence confirms the excellent health of the park’s streams. These odonates occupy distinct altitudinal zones and microhabitats. Their continued survival suggests minimal pollution and well-preserved aquatic ecosystems.

Ecological Importance of Odonates

Odonates serve as bioindicators of ecosystem health. Changes in their populations can reveal shifts in habitat quality. The survey’s transect method allows detailed monitoring of species distribution and abundance. Future comparisons with past data will help understand long-term ecological trends in Silent Valley.

Ongoing Research and Conservation Efforts

This was the fourth odonate survey in Silent Valley since 2019. Experts plan one more survey next year to deepen understanding of the park’s biodiversity. The involvement of local forest officials and odonate specialists ensures comprehensive data collection. These efforts support conservation and management of this vital protected area.