×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

GS-III :
  • 02 January, 2020

  • 4 Min Read

Kerala for steps to curb alien plants’ growth in NBR

Syllabus subtopic: Conservation, environmental pollution and degradation, environmental impact assessment

Prelims and Mains focus: about Senna Spectabilis: threat posed by it and measures taken to check its spread

News: The Kerala Forest and Wildlife department is gearing up to adopt comprehensive steps to arrest the rampant growth of invasive alien plants, especially tree species like ‘Senna Spectabilis’, in the forest areas of the Nilgiri Biosphere Reserve (NBR), including the Wayanad wildlife sanctuary.

Threats by invasive species (Senna Spectabilis)

  • The spread of invasive plants, especially Senna Spectabilis, is posing a major threat to the forest areas of the reserve, owing to its quick growth and coppicing character.

  • The tree species had been found in nearly 10 km sq area of 344.44 sq km of the sanctuary around five years ago. But now it has invaded more than 50 sq km of the sanctuary in a short span of time. This showed its high invasive nature.

  • A recent study of the Ferns Nature Conservation Society with the support of the Forest department recorded the presence of the plant on 78.91 sq km area of the sanctuary.

  • The plant started to invade in adjacent tiger reserves, including Bandipur and Nagarhole in Karnataka and the Mudumalai tiger reserve in Tamil Nadu.

  • Earlier, it was planted as avenue trees along roadsides in Wayanad. Due to massive flowering and drying of bamboo species in the Wayanad, lots of open spaces were created which were occupied by Senna Spectabilis.

  • An adult tree grows up to 15 to 20 metres in a short period of time and every year distributes thousands of seeds after the gregarious flowering. The thick foliage arrests the growth of other indigenous species of trees and grass, and causes food shortage for the wildlife population, especially herbivores, during summer. Moreover wildlife would not feed on the leaves of the tree as it was not palatable for them.

How does it hampers the growth of other plant species?

  • The ‘vayal’ ecosystem (marshy land) of the forest area now houses this plant in large numbers. The allele-chemicals produced by this plant adversely affect the germination and growth of the native species.

Measures taken up to prevent it from spreading

  • The KFRI has developed some physical and chemical measures to tackle the threat of the plant.
  • Though physical method was being followed to tackle the issue for the past five years, it was yet to make any desired effect. Hence it is being planned to adopt an integrated method by combining the physical as well as chemical measures to address the issue.
  • As the same threat is being faced by the adjacent tiger reserves, managers of the reserves agreed to follow the similar steps to tackle the threat.

Source: The Hindu


What is Mission Indradhanush ?

Mission Indradhanush was launched in 2014 under the Ministry of Health and Family Welfare.  1. Between 2009 - 2013, only 1% coverage per year has increased. We have to make it to 5%. 2. Objectives of Mission Indradhanush: We have the aim of full coverage by 2020. Cover all those children who are either unvaccinated or are part

Mediation Bill 2021 - Detailed Overview

A Bill that could alter the Mediation landscape The background behind Mediation Bill:         In General, Disputes Became part and parcel of  Day-to-Day Life. Someone or the Other belonging to family or else not a part of the family would be fighting for something. These Disputes may be for Smaller or B

Military exercises of India

List of all Military Exercises of India 2021 Military Exercises of India with Neighbours Sampriti: India & Bangladesh Mitra Shakti: India & Sri Lanka Surya Kiran: India & Nepal Hand in Hand Exercise: India & China Ekuverin: India & Maldives Military Exercises of India with Other countries Maitree Exer

Consumer Protection Rules, 2021

Consumer Protection (Jurisdiction of the District Commission, the State Commission and the National Commission) Rules, 2021 1) Pecuniary Jurisdiction The Consumer Protection Act, 2019 The Consumer Protection Act, 2019 promulgates a three-tier quasi-judicial mechanism for redressal of consumer disputes namely district commissions, state

Swachh Bharat Mission (Urban) 2.0

The Swachh Bharat Mission - Urban (SBM-U), launched on 2nd October 2014 aims at making urban India free from open defecation and achieving 100% scientific management of municipal solid waste in 4,041 statutory towns in the country. The objectives of the mission are mentioned below: Elimination of open defecation Eradication of Manual S

Students Achievement

Search By Date

Newsletter Subscription
SMS Alerts