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‘Kerala to curb alien plants’ growth in NBR’

Posted on : 17 Feb 2020

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  • The spread of invasive plants, especially Sennaspectabilis, is posing a major threat to the forest areas of the reserve, owing to its quick growth and coppicing character.
  • Invading larger areas: A recent study of the Ferns Nature Conservation Society recorded the presence of the plant in 78.91 sq km area of the sanctuary. The tree species was found in nearly 10 sq km area of the 344.44 sq km sanctuary around five years ago. Now, it had invaded to more than 50 sq km of the sanctuary.
  • Emerging as a trap for open lands: Due to mass flowering and drying of bamboo species in Wayanad, lots of open spaces were created which had been occupied by Sennaspectabilis. The vayal ecosystem (marshy land) of the forest area now has this plant in large numbers.
  • Threat to tiger reserves: With the adjacent tiger reserves (Bandipur and Nagarhole tiger reserves in Karnataka and the Mudumalai tiger reserve in Tamil Nadu) also under threat.
  • Sennaspectabilis is a medium to large tree from tropical America, listed in the Global Compendium of Weeds as an ‘environmental weed’, ‘garden thug’, and ‘naturalised weed’.
  • The species is extremely fast-growing, flowers and sets seed profusely, and re-sprouts readily when cut.
  • An adult tree grows up to 15 to 20 metres in a short period of time and every year distributes thousands of seeds after gregarious flowering.
  • The thick foliage arrests the growth of other indigenous tree and grass species and causes food shortage for the wildlife population, especially herbivores.

Article Related Questions

  1. “Sennaspectabilis” seen recently in news is?

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    2.Invasive plants

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    Right Ans : Invasive plants

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