Hog In The Limelight, Pg6

Key Highlights:

• The pygmy hog (Porcula salvania), the world's smallest wild suid, serves as an indicator species for the health of India's alluvial floodplains.
• A captive breeding programme in Assam has led to a 32-fold increase in the pygmy hog population over the last three decades.
• The species was once believed extinct by the mid-20th century, primarily due to habitat loss and degradation, but was rediscovered in 1971 near Barnadi Wildlife Sanctuary.
• The Pygmy Hog Conservation Programme (PHCP), a collaborative effort initiated in 1995, is central to current conservation efforts.
• The last known natural population, estimated at around 250 individuals in early 2025, resides in the Panbari grasslands of Manas National Park.
• Assam aims to increase the wild pygmy hog population to 300 by 2040, focusing on restoring fragmented grasslands and buffer zones.

Detailed Insights:

• The pygmy hog depends significantly on dense grasslands for feeding, concealment, and reproduction, making its decline a direct reflection of floodplain degradation.
• Conservation of the pygmy hog extends protection to other threatened species such as the Bengal florican, hispid hare, hog deer, and greater one-horned rhinoceros.
• The PHCP is a collaborative initiative involving the Durrell Wildlife Conservation Trust, IUCN/SSC Wild Pig Specialist Group, Assam Forest Department, Ministry of Environment, Forest and Climate Change, Government of India, EcoSystems-India, and Aaranyak.
• Captive breeding requires meticulous tracking of pedigree, adherence to biosafety protocols, and conditioning of individuals before release to prevent disease and inbreeding.
• Major threats include land conversion for agriculture and tea plantations, flood control infrastructure, invasive plants, altered flood cycles, and unscientific burning of grasslands.
• The pygmy hog is listed as Endangered on the IUCN Red List and in Schedule I of the Indian Wildlife (Protection) Act, 1972.
• Reintroduction efforts have successfully established a self-sustaining population in Orang National Park, estimated at 200-250 wild-born individuals.
• Restoration efforts are crucial for areas like Rupahi and Kanchanbari, and buffer zones around Manas National Park, Orang National Park, and Sonai Rupai Wildlife Sanctuary.

Key Concepts Involved:

• Indicator Species: A species whose presence, absence, or abundance reflects the health and environmental conditions of an ecosystem.
• Alluvial Floodplains: Flat land areas adjacent to rivers, formed by the deposition of sediment during floods, characterized by rich soil and dynamic ecosystems.
• Captive Breeding Programme: A conservation strategy involving breeding endangered species in controlled environments to increase their numbers for reintroduction into the wild.
• Habitat Fragmentation: The process by which large, continuous habitats are divided into smaller, isolated patches, often leading to reduced biodiversity and genetic isolation.