Is point calimere wildlife sanctuary safe for migratory birds?


What is Important?
From UPSC Perspectives
Prelims:Not Much
Mains:Conservation of Birds and biodiversity

Why in News?

The water quality at the Point Calimere Wildlife Sanctuary might be unsafe for avifauna to feed and breed.

Point Calimere Wildlife Sanctuary:

*The wildlife sanctuary located in Nagapattinam district of Tamil Nadu spreads across an area of 30 sq.km and comprises sandy coastal, saline swamps and thorn scrub forests around the backwater.
*It is a protected area and a Ramsar site, chemical companies and small-scale shrimp farms around the wetland have started to pose a threat to the biodiversity and ecosystem of the sanctuary.

Key facts:

*Atmospheric temperature at a few stations exceeded 36-40 degrees Celsius. “This can affect the egg albumen during the pre-incubation period, thereby providing better growth conditions for harmful microorganisms in the eggs.
*The pH and salinity of the waters also exceeded the permissible limits for ecologically sensitive zones. 
*High acidic or high alkaline water can affect the metabolic and developmental activities of wild animals and birds.
*The chemical companies are also letting out untreated effluents into the waters. All this can have a deteriorating effect on the ecology.
*Microbial indicators such as coliform bacteria were also found to be very high at all the five sites.
*The faecal waste of the birds contains a high level of microbial load besides nitrogen, and this can significantly alter the nutrients in the water. 
*Drinking the contaminated water can lead to deformities in birds. Coliform infections in the birds have also been reported to cause a change in their natural behaviour and even affect their long distance migration.

Way forward:

*There are also high chances for the prevalence of antibiotic resistance among the coliform bacteria ,So they should plan to do more investigation on this.
*Strict environmental regulations should be imposed and salt pan and other aquaculture practices around the sanctuary should be prohibited.
Is point calimere wildlife sanctuary safe for migratory birds? Is point calimere wildlife sanctuary safe for migratory birds? Reviewed by The Hindu Current Affairs on November 11, 2018 Rating: 5

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