Mains issueGS-3News & Analysis27 October 2026

Climate Change Impacts on Migratory Bird Patterns and Wetland Ecosystems

Aspirants should be able to argue that climate change, exemplified by phenomena like El Niño and altered rainfall, is directly impacting species migration patterns and forcing habitat shifts, necessitating integrated ecosystem management and continuous monitoring for effective biodiversity conservation.

Source: thehindu.comOriginal report

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Why now

The unusual sighting of greater flamingos at an inland freshwater lake, directly linked to a Super El Niño event and altered rainfall, serves as a tangible example of how climate change is immediately impacting biodiversity and forcing species to adapt, making it a critical issue for Mains examination.

Core issue

Greater flamingos, typically found in coastal wetlands, have been unusually sighted at Veeranam Lake, an inland freshwater body in Cuddalore district, Tamil Nadu. Researchers attribute this rare occurrence to altered rainfall patterns, a Super El Niño event, and reduced Cauvery river flows, which have led to food scarcity in their usual coastal habitats like Point Calimere and Muthupettai Lagoon. The receding water levels at Veeranam Lake created temporary shallow areas suitable for foraging, but the long-term viability of such inland habitats for these coastal species remains uncertain, necessitating continuous monitoring.

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