A Reserve Without Its Predator: Why Buxa Is Getting Tigers From Assam, Not the Sundarbans
The choice of source population is the whole science of the reintroduction — and it turns on matching the tiger to the landscape it must survive in
What happened
An aspirant should read past the headline of tigers returning to a reserve and focus on the sentence that carries the science: the source will be Assam, not the Sundarbans. That single choice encodes the ecological logic of the whole exercise — a reintroduced predator must be matched to the landscape it will hunt and survive in, and getting the source population wrong can doom the effort regardless of good intentions.
Why the source matters: Sundarban tiger vs terai tiger
| Trait | Sundarban tiger | Assam / terai tiger (chosen for Buxa) |
|---|---|---|
| Habitat | Saline mangrove delta | Terai grassland & hill forest |
| Behaviour | Habitual swimming, tidal navigation | Forest and grassland hunting |
| Match to Buxa | Poor — different landscape | Good — continuous with Bhutan/Assam |
Source: NTCA reintroduction principles; West Bengal Forest Department plan, 2026
The examinable framework is India's tiger conservation architecture.
●Project Tiger, launched in 1973, is the umbrella programme, and the National Tiger Conservation Authority, a statutory body created by the 2006 amendment to the Wild Life (Protection) Act, 1972, governs tiger reserves and issues the protocols for reintroduction and supplementation.
●The tiger is a Schedule I species under the Act, carrying the highest protection.
●Reintroduction is the deliberate release of a species into an area from which it has disappeared, distinct from supplementation, which reinforces an existing but declining population.
●The choice of source population is governed by the principle of ecological and behavioural matching: Sundarban tigers are adapted to a saline mangrove delta, swim habitually and have a distinct prey base and temperament, whereas Buxa is a terai and hill landscape continuous with Bhutan and Assam.
●Sourcing from Assam's Kaziranga and Orang, which hold surplus tigers, matches the animal to the destination.
●Successful Indian precedents include Sariska and Panna, both repopulated after losing their entire tiger populations.
The source population is the science of a reintroduction — a Sundarban mangrove tiger and a Buxa hill tiger are shaped by different worlds, which is why Buxa's tigers will come from Assam.
◎ In Simple Words
Buxa is a protected forest in West Bengal that was meant to have tigers but effectively lost them. Now the plan is to bring tigers back. But you cannot just move any tiger there — tigers from the Sundarbans mangrove swamps are used to a completely different environment, swimming and hunting in tidal waters, and would struggle in Buxa's hilly forests. So the tigers will come from Assam, where the landscape is similar, and where some reserves have more tigers than their space can hold.
Factual Pointers
Practice · 2 questions
Why are the tigers for Buxa proposed to be sourced from Assam rather than from the Sundarbans?
Which one of the following correctly describes the institutional framework for tiger reintroduction in India?
Mains Practice Questions
The success of a tiger reintroduction depends more on the destination habitat than on the animals released. Examine with reference to the Buxa reintroduction.
The choice of source population illustrates a general principle of conservation translocation. Discuss with reference to ecological and behavioural matching.
India's rising tiger population has made the redistribution of animals across reserves a management necessity. Analyse the opportunities and challenges this presents.
MCQ Practice
3 questions on this article
With trap analysis, approach guide, and UPSC angle
Frequently Asked
· People also askWhat is planned at Buxa Tiger Reserve?
The West Bengal Forest Department, with the National Tiger Conservation Authority, plans to reintroduce tigers into Buxa Tiger Reserve in Alipurduar district, north Bengal, with a target for later in 2026. Buxa had effectively lost its resident tigers, with camera traps recording only transient animals from Bhutan or Assam.
GS3 · ConservationThe reintroduction follows NTCA protocols under Project Tiger and depends on prey availability, habitat restoration and reduced human pressure inside the reserve.
SOURCE Millennium Post · NTCA, 2026
Why not source the tigers from the Sundarbans?
Because Sundarban tigers are adapted to a saline mangrove delta — they swim habitually, navigate tides and have a distinct prey base and temperament — whereas Buxa is a terai and hill landscape continuous with Bhutan and Assam. Ecological and behavioural matching favours Assam's tigers, from reserves such as Kaziranga and Orang, which also hold surplus animals.
GS3 · Conservation scienceThe choice of source population is the core science of a reintroduction: two populations of the same species shaped by different habitats are not interchangeable.
SOURCE West Bengal Forest Department plan, 2026
What is the difference between reintroduction and supplementation?
Reintroduction is the deliberate release of a species into an area from which it has disappeared, as at Buxa. Supplementation reinforces an existing but declining population with additional individuals. Buxa, having effectively lost its tigers, is a reintroduction rather than a supplementation.
GS3 · Conservation terminologyThe distinction matters for protocol and expectation: reintroduction rebuilds from zero and depends on the destination habitat being made ready, whereas supplementation strengthens a population that already persists.
SOURCE NTCA guidelines
Which body governs tiger reintroduction in India?
The National Tiger Conservation Authority, a statutory body created by the 2006 amendment to the Wild Life (Protection) Act, 1972, governs tiger reserves and issues reintroduction protocols. It operates under Project Tiger, the umbrella programme launched in 1973. The tiger is a Schedule I species under the Act.
GS3 · InstitutionsTechnical assessment is supplied by the Wildlife Institute of India, and an inter-state translocation such as Buxa's also requires coordination with the source state's forest authorities.
SOURCE Wild Life (Protection) Act, 1972; NTCA
Have tiger reintroductions succeeded in India before?
Yes. Sariska in Rajasthan and Panna in Madhya Pradesh were both rebuilt through managed translocation after losing their entire tiger populations, with intensive radio-collaring and monitoring. They show the method works but is resource-intensive and unforgiving of the human pressures that emptied the reserves in the first place.
GS3 · Conservation precedentSariska's recovery was repeatedly set back by continued human pressure, underlining that reintroduction succeeds only if the underlying causes of loss are addressed and the conditions sustained after release.
SOURCE NTCA; All India Tiger Estimation