Impacts of Vulture Declines on Humans and Other Animals

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Investigating the impact of catastrophic vulture declines on public health in India


Griffon vultures are extremely effective and efficient scavengers, with a group of these birds being able to reduce an adult cow carcass to bare bones within a matter of minutes. The sudden and marked declines of griffon vultures in the Indian subcontinent will undoubtedly have important repercussions, both ecologically and for human health and well-being. Without as many vultures to dispose of dumped carcasses, there is an abundance of available meat. The result is that vulture declines have been associated with the explosion of feral dog populations at carcass dumps across India. India has the highest incidence of rabies in the World (c. 60% of all documented cases). Dogs that were once dependent on villagers for food are now breeding and living exclusively in the carcass dumps.

The British High Commission has supported a pilot investigation into the possible impact of the griffon vulture declines on public health in India, by determining if these declines have increased the threat of zoonotic diseases from dogs, rats and livestock carcasses. Further research investigating the potential economic impacts of the vultures declines is being undertaken with support from the RSPB and the UK government's Foreign and Commonwealth Office Global Opportunities Fund.

Parsi's and the 'Towers of Silence'


The Parsi religion prohibits the interment or cremation of their dead. Instead, they practice a 'sky burial' where they leave their dead in the open to allow the elements to dispose of the bodies. In India, vultures are responsible for cleaning the bodies left in the open at ceremonial centres such as the 'Towers of Silence' in Mumbai. In the past the resident vulture population was able to clean the bodies in a matter of hours. However, since the declines the Parsis are having a difficult time taking care of their dead. They have explored a number of possible alternatives including initiating a captive breeding program to increase the number of vultures around their centres.