Assam CM highlights ‘big comeback’ of ‘small hog’
The state government highlighted the recovery of the pygmy hog population in Assam, noting numbers have grown from six individuals captured in 1996 to 194 hogs today through a sustained captive breeding and reintroduction programme.
The Pygmy Hog Conservation Programme (PHCP) began in 1996 when six wild hogs were captured from the Kuribeel grasslands of Manas National Park to found a breeding population at a dedicated research centre.
Hogs bred in captivity have since been reintroduced into multiple protected grassland habitats across Assam, including Manas National Park, with releases continuing in recent years.
The programme is run jointly by Assam's Forest Department with technical and funding partners including the Durrell Wildlife Conservation Trust, the IUCN SSC Wild Pig Specialist Group, Aaranyak, Ecosystems-India, and the Wildlife Institute of India (WII) as the nodal agency.
The Union Ministry of Environment, Forest and Climate Change has included the pygmy hog under its national Species Recovery Programme, with plans for further releases aimed at building a self-sustaining wild population.
Pygmy Hog (Porcula salvania) — Conservation Status and Legal Protection
The pygmy hog is the world's smallest wild pig species and India's only endemic wild pig, historically found in the tall, undisturbed alluvial grasslands ("terai") along the Himalayan foothills. Habitat loss from agricultural conversion, grassland burning, flooding, and livestock grazing pushed it to near-extinction by the mid-20th century, with the species even believed extinct at one point before a small surviving population was confirmed in Manas.
Key Details
- IUCN Red List status: Endangered, with an estimated wild population of fewer than 250 mature individuals.
- Listed in Schedule I of the Wildlife (Protection) Act, 1972 — the category carrying the highest level of legal protection and the most stringent penalties for offences.
- Listed in Appendix I of CITES (Convention on International Trade in Endangered Species), prohibiting international commercial trade.
- Considered a flagship indicator species for the health of tall, wet alluvial grassland ecosystems of the Himalayan terai — a habitat type that is itself highly threatened and under-represented in India's protected area network compared to forest habitats.
The rise from 6 to 194 individuals reflects population growth within a species still classified Endangered and Schedule I-protected — the numbers are encouraging but the species remains far from population security given the low starting base and restricted habitat.
Ex-Situ Conservation and Captive Breeding as a Recovery Tool
Ex-situ conservation refers to conserving a species outside its natural habitat (for example, in captive breeding centres, zoos, or gene banks), as distinct from in-situ conservation, which protects species within their natural habitat (national parks, sanctuaries, biosphere reserves). Captive breeding for reintroduction is used when wild populations fall so low that natural recovery is unlikely without human-assisted breeding and habitat restocking.
Key Details
- The PHCP is one of India's most-cited captive-breeding-and-reintroduction success stories, comparable in structure to programmes for the Gharial and the Great Indian Bustard.
- The approach combines ex-situ breeding (at a dedicated centre) with in-situ release into protected habitat, requiring both a secure breeding facility and adequately protected, restored grassland at the release sites.
- Genetic management is a key challenge in such programmes, since founder populations descended from very few individuals (here, six) carry a higher risk of inbreeding depression and reduced genetic diversity.
- Success depends on post-release monitoring and continued habitat protection at reintroduction sites, not breeding numbers alone.
The pygmy hog programme demonstrates how ex-situ captive breeding, paired with in-situ habitat protection at Manas and other grassland sites, can reverse a near-extinction trajectory — a model UPSC frequently tests through comparison with other Indian ex-situ programmes.
Manas National Park — Tiger Reserve, Biosphere Reserve and World Heritage Site
Manas, located in western Assam along the India-Bhutan border, holds an unusually layered set of conservation designations reflecting both its ecological importance and its conservation history. It was declared a wildlife sanctuary in 1928, made a Project Tiger reserve in 1973, inscribed as a UNESCO Natural World Heritage Site in 1985, and designated a Biosphere Reserve in 1989, before being upgraded to a National Park in 1990.
Key Details
- UNESCO placed Manas on the "World Heritage in Danger" list in 1992 due to poaching and habitat damage linked to civil unrest in the region, and removed it from that list in 2011 after recovery efforts.
- Manas is also designated an Elephant Reserve and is contiguous with Bhutan's Royal Manas National Park, forming a transboundary conservation landscape.
- Along with the pygmy hog, Manas supports the Bengal tiger, Indian rhinoceros, and hispid hare — the last also a grassland specialist and Schedule I species found alongside the pygmy hog.
- Distinguishing categories: a National Park permits no human activity other than that allowed by the Chief Wildlife Warden, while a Wildlife Sanctuary permits limited regulated human activity, and a Tiger Reserve additionally has a legally notified core (critical tiger habitat) and buffer zone under the Wildlife Protection Act.
Manas's multiple protection layers — Tiger Reserve, Biosphere Reserve, World Heritage Site — provided the protected grassland habitat necessary for the pygmy hog's original founder population to survive and later for captive-bred hogs to be reintroduced.
Species Recovery Programme under Integrated Development of Wildlife Habitats (IDWH)
The Species Recovery Programme is a dedicated component of the Integrated Development of Wildlife Habitats (IDWH), a Centrally Sponsored Scheme of the Ministry of Environment, Forest and Climate Change launched in 2008-09 (reformulating the earlier "Assistance for Development of National Parks and Sanctuaries" scheme). It funds species-specific recovery plans for identified critically endangered or endangered species.
Key Details
- The Wildlife Institute of India (WII), the nodal technical agency for the pygmy hog programme, has also been tasked with preparing Endangered Species Recovery Plans for other species such as the Great Indian Bustard, the Gangetic dolphin, and the Manipur brow-antlered deer (Sangai).
- IDWH funding covers habitat improvement, anti-poaching infrastructure, and species-specific recovery interventions including captive breeding where required.
- The scheme operates alongside — but is administratively distinct from — Project Tiger and Project Elephant, both of which also receive central funding under related wildlife conservation heads.
The pygmy hog's inclusion in the national Species Recovery Programme situates the Assam-specific breeding effort within a broader centrally funded framework that Indian wildlife policy uses to target recovery of species too depleted to recover through habitat protection alone.
- Pygmy hog population: 6 individuals captured (1996) → 194 bred and reintroduced (as of the current programme count).
- IUCN Red List status: Endangered; estimated fewer than 250 mature individuals remain in the wild.
- Legal protection: Schedule I, Wildlife (Protection) Act, 1972; CITES Appendix I.
- Manas National Park: Tiger Reserve since 1973, UNESCO World Heritage Site since 1985, Biosphere Reserve since 1989, National Park since 1990.
- Key programme partners: Assam Forest Department, Durrell Wildlife Conservation Trust, IUCN SSC Wild Pig Specialist Group, Aaranyak, Ecosystems-India, and Wildlife Institute of India (nodal agency).
- The pygmy hog is included under the Union Species Recovery Programme, a component of the Integrated Development of Wildlife Habitats (IDWH) Centrally Sponsored Scheme launched in 2008-09.