It took India 50 years to increase its
tiger population from 1,800-odd in 1973 to nearly 3,000 today.
But the next 50 years could well be in the hands of scientists. A frozen zoo — a storage facility with genetic material of animals, stored at very low temperatures in a laboratory in Hyderabad — can help revive tiger population, if the majestic species again reaches the edge of extinction.
Although a lab-produced tiger looks distant, scientists can also help get exact numbers during a census, track down maneaters etc. The Centre for Cellular and Molecular Biology’s Laboratory for Conservation of Endangered Species (LaCONES) has developed markers for non-invasive DNA-based techniques for estimating tiger population, determine sex and identify problem tigers (maneaters).
LaCONES has also unravelled the mystery of tiger poaching using forensics.
P Anuradha Reddy, principal scientist, says, “We have been studying the population genetics of tigers from protected areas across the country. Our expertise is in isolating DNA from faecal matter and using the information to answer questions on genetic diversity, population structure and connectivity of tiger populations in the country.”
Scientists identified what features in the landscape allow tiger movement and what impede them. DNA-based identification is also helpful in low-density population areas in Kawal Tiger Reserve in Telangana, and Arunachal Pradesh in the Northeast.
“In poaching and wildlife crime cases, establishing the identity, sex and individual tiger helps the forest department nail the role of poachers and killers,” Reddy explains. This also helps conflict cases where tigers and leopards attack humans and cattle. “We identify tigers with saliva swabs from injury site. We can even cross-check DNA with the animals caught by the forest department,” says Reddy.