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Illegal Lotus Threatens Bird Haven
5 Jul
Summary
- Illegal lotus cultivation expands rapidly in Perungulam tank.
- The wetland is a significant habitat for 147 bird species.
- Environmentalists urge protection and Ramsar site status for the tank.

Environmentalists are calling for the conservation of the Perungulam tank in Thoothukudi district, a vital water body facing threats from illegal lotus cultivation. The tank, which spans nearly 850 acres, is crucial for irrigation and domestic use, and is a significant habitat for 147 resident and migratory bird species. A recent study documented this rich avian biodiversity between July 2023 and June 2024, noting seasonal variations in species composition.
The illegal lotus cultivation, which has expanded significantly over the past year, is disrupting the natural vegetation and reducing open-water habitats essential for migratory birds like ducks. Furthermore, concerns are mounting over the unauthorized removal of red soil from the tank's banks, impacting feeding grounds for wading birds. Chemical fertilizers used for lotus cultivation are also deteriorating water quality.
Experts emphasize the ecological importance of Perungulam, citing its substantial storage capacity compared to other regional tanks. They advocate for its protection and inclusion among Ramsar sites to safeguard its biodiversity from increasing anthropogenic pressures. The district administration is reportedly taking steps to integrate the waterbody into a wetland conservation reserve framework.