Tigress BTR-TF-1 (T-138) crosses Sankosh River into Assam’s Raimona National Park
GS3Economy · S&T · Environment · Security· Species, protected areas & wetlands· Prelims·
Why in news
A three-year-old tigress (BTR-TF-1) from Bihar's Valmiki Tiger Reserve crossed the Sankosh River into Assam's Raimona National Park, highlighting transboundary wildlife movement.
Background
The tigress, identified as BTR-TF-1 (T-138), moved from Bihar's Valmiki Tiger Reserve into Assam's Raimona National Park on October 25, 2026. She was previously relocated to West Bengal's Buxa Tiger Reserve on October 2, 2026.
Facts for Prelims
- EnvironmentBTR-TF-1 (T-138) is a three-year-old tigress from Valmiki Tiger Reserve, Bihar
- PlaceSankosh River serves as a geographical boundary between Bihar and Assam
- PlaceRaimona National Park is located in Assam
- BodyNTCA (National Tiger Conservation Authority) and WII (Wildlife Institute of India) are monitoring the tigress
For Mains
Q. Discuss the challenges of managing transboundary wildlife corridors and the ecological implications of large predator movement across state boundaries in India.
Dimensions to cover in your answer
- Habitat fragmentation: Disconnected forest patches forcing tigers to traverse human-dominated landscapes
- Inter-state coordination: Need for synchronized monitoring protocols between Bihar, West Bengal, and Assam forest departments
Keywords: Transboundary conservation · Wildlife corridors · Habitat connectivity · In-situ conservation · Human-wildlife conflict
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