Dragonflies in distress: Scientists sound alarm in India's Western Ghats
GS3Economy · S&T · Environment · Security· Biodiversity & conservation· Prelims + Mains·
Why in news
Evolutionary ecologist Pankaj Koparde reported a 35% decline in dragonfly and damselfly species in the Western Ghats due to habitat loss and human activities.
Background
The study was funded by the Indian government's Department of Science and Technology. It identified a decline of at least 35% in dragonfly and damselfly populations compared to previous reports in the Western Ghats biodiversity hotspot.
Facts for Prelims
- EnvironmentDragonflies and damselflies are used as indicators to assess ecosystem health in biodiversity hotspots.
- PlaceThe Western Ghats is identified as one of India's most important biodiversity hotspots.
- FactThe study found at least 35% fewer dragonfly and damselfly species than previously reported.
- BodyThe Department of Science and Technology (DST) funded the research on species decline.
For Mains
Q. Discuss how the decline of indicator species like dragonflies in biodiversity hotspots like the Western Ghats reflects the broader impact of anthropogenic pressures on ecosystem integrity.
Dimensions to cover in your answer
- Habitat fragmentation: Rapid infrastructure development and agricultural expansion causing localized extinction of aquatic-linked insects
- Indicator species monitoring: Utilizing dragonfly population trends as a proxy for assessing water quality and ecosystem health
- Conservation trade-offs: Balancing regional infrastructure growth with the preservation of biodiversity hotspots
Keywords: Biodiversity Hotspots · Indicator Species · Anthropogenic Pressure · Habitat Fragmentation · Ecosystem Integrity
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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.