A groundbreaking study from India’s premier research institution has unveiled a troubling reality for the nation’s tiger population—the very tourism meant to celebrate these majestic predators is pushing them toward stress and disrupting their breeding patterns.
The research, conducted by the CSIR-Centre for Cellular and Molecular Biology (CCMB) and published in the Zoological Society of London journal Animal Conservation, examined tigers across five major reserves: Corbett, Tadoba-Andhari, Kanha, Bandhavgarh, and Periyar, between 2020 and 2023.
The investigation employed a sophisticated non-invasive approach, analyzing 610 genetically confirmed tiger scat samples to study stress and reproductive hormone levels. This innovative methodology revealed a stark pattern: tourism and human activity are fundamentally altering tiger behavior and physiology.
The findings challenge long-held assumptions about wildlife protection. Core-zone tigers show sharp stress spikes when seasonal tourism enters their areas, while buffer-zone tigers appear habituated to year-round human presence. The situation is particularly dire in Tadoba and Bandhavgarh reserves.
According to Dr. G. Umapathy, Chief Scientist at CCMB, “Tigresses prefer to breed in the quiet parts of the forests. However, it is becoming difficult to find such suitable areas”. With buffer zones already saturated with high tiger populations, the stress is cascading into previously protected core areas.
The implications extend beyond immediate stress. Not only is reproductive success lower under stress, but cubs also develop differently in such conditions, creating a multigenerational impact on the species.
The research offers concrete recommendations: Strict regulation of tourist vehicle numbers, reduction of safari duration by approximately one hour in both sessions, strengthened buffer zone management, and continuous physiological monitoring of breeding females.
India’s tiger population, once hunted to near-extinction, has achieved a remarkable recovery. Yet this study suggests that success now faces a different threat—one posed not by poachers, but by the growing footprint of tourism. Balancing conservation with sustainable wildlife tourism remains the critical challenge ahead for India’s forest authorities.
-Rashmi Kumari
