Topic: Conservation, environmental pollution and degradation, environmental impact assessment
6. The effects of invasive alien species on their new surroundings as well as the overall biodiversity of the region are grave. Analyse. (250 words)
Difficulty level: Moderate
Reference: Down to Earth
Why the question:
Invasive south red-eared slider turtle poses threat to Indian biodiversity. This turtle is very small and easy to maintain and these features made them popular pets.
Key Demand of the question:
To write about the threats posed by invasive alien species and ways to tackle their spread.
Analyse – When asked to analyse, you must examine methodically the structure or nature of the topic by separating it into component parts and present them in a summary.
Structure of the answer:
Start by explaining the term invasive alien species.
First, Explain the various threats posed by them. Provide examples and present the scenario of harm posed by invasive species in India – threaten cultivable land and wildlife habitats alike, may lead to the conversion of marshy wetlands into dry land. E.g.: water hyacinth, spread into the forests through the corridors created by landslides, affect the soil and destroy the microhabitat of that area
Next, Write about the various government policies and programmes in this direction.
Conclude with solutions to address the issue.