Dragonflies in distress: Scientists sound alarm in India's Western Ghats
GS3अर्थव्यवस्था · विज्ञान-तकनीक · पर्यावरण · सुरक्षा· Biodiversity & conservation· Prelims + Mains·
चर्चा में क्यों
Evolutionary ecologist Pankaj Koparde reported a 35% decline in dragonfly and damselfly species in the Western Ghats due to habitat loss and human activities.
पृष्ठभूमि
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.
प्रीलिम्स के लिए तथ्य
- पर्यावरणDragonflies and damselflies are used as indicators to assess ecosystem health in biodiversity hotspots.
- स्थानThe Western Ghats is identified as one of India's most important biodiversity hotspots.
- तथ्यThe study found at least 35% fewer dragonfly and damselfly species than previously reported.
- संस्थाThe Department of Science and Technology (DST) funded the research on species decline.
मेन्स के लिए
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.
उत्तर के आयाम
- 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
कीवर्ड: Biodiversity Hotspots · Indicator Species · Anthropogenic Pressure · Habitat Fragmentation · Ecosystem Integrity
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