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Examine the factors that leads to Invasive alien species thriving in non-native areas. What measures are needed to contain their spread?

Topic: Conservation, environmental pollution and degradation, environmental impact assessment

6. Examine the factors that leads to Invasive alien species thriving in non-native areas. What measures are needed to contain their spread? (250 words)

Difficulty level: Tough

Reference: Down to Earth

Why the question:

A recent study published in Nature ISME Journal indicates that the plant species considered as invasive in non-native regions, use characteristics to survive and flourish that are different from the ones in their native regions.

Key Demand of the question:

To write about the factors aiding invasive alien species and ways to tackle their spread.

Directive word: 

Examine – When asked to ‘Examine’, we must investigate the topic (content words) in detail, inspect it, investigate it and establish the key facts and issues related to the topic in question. While doing so we should explain why these facts and issues are important and their implications.

Structure of the answer:

Introduction: 

Start by explaining the term invasive alien species.

Body:

First, write about the factors that ensure that to Invasive alien species survive in non-native areas.

Next, 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 steps that are needed to tackle their spread.

Conclusion:

Conclude with a way forward.