🦅 White-Rumped Vulture (Gyps bengalensis)
Context: The first attempt to reintroduce a captive-bred White-Rumped Vulture in South India ended after the radio-tagged bird was electrocuted by an overhead power line near the Mudumalai Tiger Reserve, underscoring the persistent threats faced by India's critically endangered vultures.
📖 PRELIMS POINTER
🔹 What is the White-Rumped Vulture?
- The White-Rumped Vulture (Gyps bengalensis) is an Old World scavenging vulture native to South Asia.
- It belongs to the Accipitridae family and is one of the nine vulture species found in India.
- Historically, it was the most abundant large raptor in the world, but its population declined by over 99% during the 1990s due to diclofenac poisoning.
- As an obligate scavenger, it performs a critical ecological function by rapidly disposing of animal carcasses and limiting the spread of diseases.
🌍 Habitat & Distribution
- Distributed across:
- India
- Nepal
- Pakistan
- Bangladesh
- Myanmar
- Parts of Southeast Asia
- Prefers:
- Open grasslands
- Agricultural landscapes
- River valleys
- Forest fringes
- Semi-arid regions
- Nests on tall trees such as:
- Banyan
- Peepal
- Neem
- Arjun
- Often nests close to villages and livestock grazing areas where food is readily available.
🛡 Conservation Status
| Parameter | Status |
|---|---|
| IUCN Red List | Critically Endangered (CR) |
| Wildlife (Protection) Act, 1972 | Schedule I |
| CITES | Appendix II |
⚠ Major Threats
- Veterinary Diclofenac
- The principal cause of population collapse.
- Consumption of carcasses of livestock treated with diclofenac leads to fatal kidney failure (visceral gout).
- Power Line Electrocution & Collision
- Habitat Loss & Decline of Nesting Trees
- Pesticide and Toxic Chemical Exposure
- Declining Availability of Safe Livestock Carcasses
🔹 Key Characteristics
- Scientific Name: Gyps bengalensis
- Family: Accipitridae
- Body Length: 75–93 cm
- Weight: 5–7.5 kg
- Wingspan: Approximately 1.9–2.6 metres
- Distinctive Features
- White lower back (rump)
- White neck ruff
- Dark brown to black plumage
- Bare pinkish head and neck adapted for scavenging
- Flight Adaptation
- Soars effortlessly using thermal air currents with minimal energy expenditure.
- Feeding Behaviour
- Feeds almost exclusively on animal carcasses.
- Highly acidic digestive system destroys dangerous pathogens, reducing disease transmission.
- Breeding
- Breeding season: November–March.
- Lays a single white egg.
- Incubation period: 30–35 days.
- Young remain dependent in the nest for nearly three months.
🌿 Ecological Importance
- Acts as Nature's sanitation worker by rapidly removing carcasses.
- Prevents outbreaks of diseases such as anthrax, rabies, and botulism.
- Maintains ecological balance through efficient nutrient recycling.
- Controls populations of opportunistic scavengers such as feral dogs.
- Serves as an important indicator of ecosystem health.
📝 MAINS VALUE ADDITION
Why is the White-Rumped Vulture Important?
- Public Health
- Rapid carcass disposal prevents the spread of zoonotic diseases.
- Biodiversity Conservation
- Represents one of the fastest recorded declines of any bird species globally.
- Flagship species for India's vulture recovery programme.
- Ecosystem Services
- Supports nutrient cycling and ecological sanitation.
- Reduces dependence on artificial carcass disposal mechanisms.
- Conservation Challenges
- Captive breeding must be complemented with bird-safe power infrastructure.
- Strict enforcement of the ban on veterinary diclofenac remains essential.
- Creation of Vulture Safe Zones and habitat restoration is critical for long-term recovery.
UPSC Takeaway:
The White-Rumped Vulture is a Critically Endangered keystone scavenger whose survival is vital for maintaining ecosystem health and public sanitation. While conservation efforts such as captive breeding and diclofenac regulation have shown progress, addressing threats like power-line electrocution, habitat degradation, and toxic veterinary drugs remains indispensable for the species' recovery.
The White-Rumped Vulture is a Critically Endangered keystone scavenger whose survival is vital for maintaining ecosystem health and public sanitation. While conservation efforts such as captive breeding and diclofenac regulation have shown progress, addressing threats like power-line electrocution, habitat degradation, and toxic veterinary drugs remains indispensable for the species' recovery.