Invasive species do not invade healthy ecosystems — they inherit broken ones. In light of this, critically examine whether India's current approach to invasive alien species addres

Invasive Alien Species (IAS) & Ecological Degradation: The Claim

• The proposition that “invasive species inherit broken ecosystems” highlights that ecological invasions are often symptoms of prior environmental disruption, not isolated biological accidents.
• India’s current IAS policy largely focuses on removal and control, raising the question whether it addresses underlying ecosystem degradation.

What Holds: India’s Response Targets Consequences

• Policy responses emphasise mechanical clearing, chemical treatment, and containment of species like Lantana camara and Prosopis juliflora.
• Programmes under the National Biodiversity Action Plan and State Forest Departments remain largely species-centric rather than ecosystem-centric.
• This approach often treats IAS as an external threat detached from ecological context.

Where the Approach Fails (Dominant Issue)

• Ecosystem Degradation Predates Invasion Colonial monoculture forestry, altered river systems, overgrazing, mining, and nutrient loading weakened ecological resilience before IAS spread.
• Disturbed Landscapes Invite Invasion IAS flourish where native biodiversity, soil quality, and hydrological balance have already collapsed. For example, Prosopis juliflora often dominates drought-prone degraded commons rather than intact forests.
• Removal Without Restoration Mechanical clearing frequently creates fresh ecological vacancies, enabling reinvasion. Thus, removal alone becomes a cyclical exercise rather than ecological recovery.

Contradictions & Gaps

• India has strong legal frameworks under the Biological Diversity Act, 2002, yet implementation remains fragmented.

• Conservation policy prioritises visible removal projects over long-term restoration of:

  • native vegetation,
  • hydrology,
  • community-managed commons.

• In some cases, IAS also provide fuelwood or livelihood support, complicating simplistic eradication models.

What Needs Qualification

• Direct intervention is sometimes necessary where IAS threaten endemic biodiversity (e.g., Western Ghats, protected areas).
• Therefore, control measures are not irrelevant, but insufficient when isolated from ecosystem repair.

Conclusion

• India’s current IAS approach addresses the manifestation of degradation more than its structural causes.
• Effective management requires shifting from an eradication-centric model to ecosystem restoration, combining native species recovery, hydrological repair, and community stewardship.
• Healthy ecosystems are the strongest long-term defence against biological invasions.