October 7, 2025

Current Affairs

The Tigers Outside Tiger Reserves (TOTR) Project

Context: During the Wildlife Week 2025 celebrations at the Forest Research Institute (FRI), Dehradun, the Union Minister for Environment, Forest and Climate Change launched five new conservation projects and four national-level wildlife monitoring programmes, including the landmark “Tigers Outside Tiger Reserves (TOTR)” Project.

About the TOTR Project

The Tigers Outside Tiger Reserves (TOTR) is a national initiative of the Ministry of Environment, Forest and Climate Change (MoEFCC) and the National Tiger Conservation Authority (NTCA).
It will be implemented from 2025 to 2028 with a total outlay of ₹88.7 crore, coordinated by NTCA and executed by state forest departments.

Objectives

Reduce human–tiger conflict in areas beyond designated reserves.
Protect dispersing tigers that move through agricultural and forested landscapes due to habitat loss and corridor shrinkage.
Promote a landscape-level conservation model, ensuring coexistence and ecological balance while protecting human lives and livelihoods.

Key Features

1. Geographical Coverage:

Covers 80 forest divisions across 17 tiger-range states, including Madhya Pradesh, Maharashtra, Karnataka, Uttarakhand, Assam, Kerala, Tamil Nadu, West Bengal, and Arunachal Pradesh.
Focuses on buffer zones and corridors adjoining high-density tiger reserves.

2. Use of Technology:

Deployment of AI-based early warning systems, camera traps, GPS-enabled patrolling, and data analytics to monitor tiger movements.

3. Community Participation:

Formation of Rapid Response Teams (RRTs) with trained local youth, equipped with tranquilization gear and rescue vehicles.
Launch of “Bagh Mitra” (Tiger Friends) and eco-education camps to build public awareness on coexistence.

4. Institutional Mechanism:

NTCA will centrally coordinate and monitor project progress.
Chief Wildlife Wardens (CWLWs) and State CAMPA authorities will handle state-level fund management and implementation.

Other Conservation Projects Launched

Project Dolphin (Phase II): Focus on conservation of river and marine dolphins, including the Ganga River Dolphin and Indus Dolphin.
Project Sloth Bear: India’s first national framework for sloth bear protection — covering habitat management, rescue, and conflict mitigation.
Project Gharial: Aimed at recovering gharial populations in the Chambal and Gandak river ecosystems.
Centre of Excellence for Human–Wildlife Conflict Management (CoE–HWC): Established at Sálim Ali Centre for Ornithology and Natural History (SACON) to develop AI-based conflict prediction models and capacity-building tools.

Significance

With over 35% of India’s tiger population living outside reserves, TOTR represents a crucial step in inclusive tiger conservation.

By blending technology, community engagement, and landscape-level management, it ensures long-term sustainability of both human and wildlife ecosystems.

Viridans Streptococci: Oral Bacteria Linked to Heart Attacks

Context: A recent study conducted by researchers at Tampere University, Finland, has revealed a surprising connection between oral bacteria and heart attacks. The study examined coronary arteries from 121 sudden-death autopsies and found that Viridans streptococci were present in about 42% of both autopsy and surgical cases, making them the most frequently detected bacterial species.

About Viridans Streptococci

Viridans streptococci are a group of gram-positive cocci commonly found in the oral cavity, but also present in the gastrointestinal, respiratory, and female genital tracts. Normally harmless, they are part of the body’s commensal microbiota.

However, under certain conditions, they can turn pathogenic, being a leading cause of infective endocarditis (IE) — an infection that affects the inner lining of the heart, especially in individuals with previously damaged cardiac tissue.

Viridans Streptococcal Biofilm Formation

The bacteria have the ability to form biofilms — sticky, protective layers that allow them to adhere to surfaces such as atherosclerotic plaques (fatty buildups inside arteries).

Within these biofilms, bacteria remain hidden from the immune system, enabling them to persist undetected for long periods.

Link Between Oral Bacteria and Heart Disease:

The study highlights how biofilm-forming Viridans streptococci can play a direct role in triggering heart attacks:

Biofilm Stability: The bacteria remain embedded deep within arterial plaques, shielded from immune response.
Biofilm Disruption: Over time, fragments of the biofilm can break loose.
Inflammation Trigger: When released, these bacteria provoke inflammation in the arterial wall, weakening the fibrous cap that covers the fatty plaque.
Plaque Rupture: The weakened cap eventually ruptures, leading to clot formation, which can block blood flow and cause a heart attack.

Significance of the Study:

The findings underscore the link between oral health and cardiovascular health, suggesting that oral bacteria may be silent contributors to heart disease.

The presence of Viridans streptococci in coronary plaques demonstrates the importance of maintaining good oral hygiene to reduce systemic inflammation and cardiac risk.

Conclusion

The Tampere University study provides crucial evidence that the mouth-heart connection is not merely coincidental but biologically plausible.

By forming biofilms within arterial plaques, Viridans streptococci act as hidden players in the development of atherosclerosis and heart attacks — highlighting how preventive dental care may play an unexpected role in cardiovascular protection.