An aquatic weed which has it's origins in the American continent is posing a threat to the habitats of elephants in Tamil Nadu state in Southern India. This weed known as 'Ludwigia Peruviana' has rapidly infested the majority of swamps in the area where elephants used to eat the edible grass there.

Reports suggest that these swamps are situated in private estates where they were grown for specific purposes. Incorrect methods of removal accelerate the growth instead.

The invasion of weeds has limited the growth of native grasses and plants and animals that rely on it for sustenance.

The invasion of weed is reportedly more in Valparai within the Annammalai Tiger Reserve. The area serves as crucial habitat for elephants that migrate between Tamil Nadu and Kerala states.

This area is known already for human-elephant conflicts, thanks to the vigilance of the government that such conflicts are now avoided.

What are swamps?

These are vital habitats that support various wildlife, including amphibians and others in addition to large herbivores.

They act as important water storage areas that require preservation. The invasion of swamps by Ludwigia shall disrupt the natural ecosystem leading to the migration of animals here and there.

Ludwigia is among the 22 priority invasive plants in Tamil Nadu. The focus of the State is on the efforts of removal of specific invasive species. It is also becoming a responsibility of private estate owners under the law to protect forests in the state.

The elimination of Ludwigia presents a unique challenge compared to other invasive plants as it grows in swamps and makes it difficult to tackle it with effective machinery without damaging the ecosystem further.

.    .    .

Reference:

• wionews.com