Why in the News?

With over 150 garganeys, and several other species, including waders and raptors, flocking the Pallikaranai marshland, the curtain for the migratory season has been raised.

About Pallikaranai Marshland:

• Location: Pallikaranai marshland is a freshwater and partly saline wetland, located approximately 20 kilometres south of Chennai, Tamil Nadu.
• The eastern border of the marsh is flanked by the Buckingham Canal.
• Rich Ecosystem: The diverse ecosystem of Pallikaranai supports an impressive array of wildlife, including 115 bird species, 10 mammals, 21 reptiles, 10 amphibians, 46 fish, nine molluscs, five crustaceans, and seven butterfly species.
• Notable Species: Among the diverse wildlife are noteworthy species such as the Russell’s viper (Daboia siamensis), glossy ibis (Plegadis falcinellus), grey-headed lapwings (Vanellus cinereus), and Pheasant-tailed jacana (Hydrophasianus chirurgus).
• Biodiversity Significance: Beyond its biodiversity, the marshland serves a crucial role in flood prevention for Chennai, absorbing water during wet periods and releasing it during dry spells.
• Environmental Threats: Despite its ecological importance, the site faces threats from invasive non-native species, household sewage, urban wastewater, and periodic droughts.
• Ramsar Designation: Acknowledging its ecological significance, Pallikaranai marshland holds the status of being one of India's Ramsar sites, recognized for its importance in wetland conservation on an international scale.