Alarming gap in biodiversity: Dragonfly, damselfly species missing in Western Ghats
A recent study reveals an "alarming gap" in biodiversity within the Western Ghats, with researchers documenting only about 65% of historically recorded dragonfly and damselfly species. This indicates a potential loss of nearly 35% of these ecologically critical insects. The study, conducted across 144 sites in five states, recorded 143 odonata species. These insects are crucial "indicator taxa" for the ecological health of water bodies. Multiple threats like infrastructure development, pollution, climate change, and land-use changes are fragmenting and degrading these ecosystems, leading to species loss and highlighting significant gaps in scientific understanding.
Key Points
- A study found a significant shortfall of nearly 35% of historically recorded dragonfly and damselfly species in the Western Ghats.
- These insects, known as odonata, are vital "indicator taxa" for the health of freshwater ecosystems.
- The study surveyed 144 sites across five states, recording 143 odonata species, including 40 endemic to the Western Ghats.
- Threats like infrastructure development, pollution, and climate change are contributing to the loss of these species and degradation of ecosystems.
- Many observed species are classified as "data deficient" or "not evaluated" by IUCN, highlighting gaps in scientific understanding.
Exam Facts
- The study recorded 143 odonata species (76 dragonflies, 67 damselflies).
- 40 of the recorded species were endemic to the Western Ghats.
- The study was carried out across 144 sites in Maharashtra, Kerala, Karnataka, Goa, and Gujarat.
- Three species (Elattoneura souteri, Protosticta sanguinostigma, and Cyclogomphus ypsilon) are classified as vulnerable by IUCN.
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